RE: OT: Is it ok to close connection in finalize() ?
On Feb 20, Mike Jackson had something to say about RE: OT: Is it ok to...
finalize() is indeed guaranteed to run upon garbage collection, which in
turn is guaranteed to happen. However, garbage collection can
happen at any
time, so the connection may not be closed immediately. If this
is an issue
for you, you can call System.gc() to force it to garbage collect
immediately.
True, but the garbage collector doesn't have to collect everything. So even
if you call it directly you can't count on it collecting some or all of the
available object.
That's not the half of it. Garbage collection requires that all running
threads (except its own) are halted. In other words, not only does it
stall the execution of your method for a couple seconds, but it also
stalls the execution of ALL executing java code running on that VM
instance. You can imagine what that does to performance.
This is why you want to avoid unnecessary object creation (like using
Integer wrapper for nothing else but holding an int). This is also why you
want to keep objects in as small scope as possible (within reason --
there's no need to localize each section of code with { and }
unnecessarily) -- to ensure that garbage collection, when it does run, can
collect as much as possible. e.g. pass in a long representing the date and
create the date object (new Date(long)) within the method, when
possible. This usually means duplicate code (i.e. public void
mymethod(long time), public void mymethod(Date date)), so that's something
to consider.
Anyways, bottom line:
System.gc() is almost always a bad idea.
One exception might be a garbage collect feature in an IDE written in
java. There aren't many more.
See the following article by JavaWorld (reproduced on IBM's website):
http://www-106.ibm.com/developerworks/java/library/j-jw-performance.html
--
mattwarden
mattwarden.com
-
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Problems with tomcat
Hello, I am using Tomcat 4.0.6, J2SDK 1.4.03 on RedHat Linux 7.3. When i try to start tomcat I get following error == An unexpected exception has been detected in native code outside the VM. Unexpected Signal : 7 occurred at PC=0x4054A857 Function=(null)+0x4054A857 Library=/usr/java/j2re/lib/i386/libzip.so NOTE: We are unable to locate the function name symbol for the error just occurred. Please refer to release documentation for possible reason and solutions. Current Java thread: at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.init(ZipFile.java:112) at java.util.jar.JarFile.init(JarFile.java:117) at sun.net.www.protocol.jar.URLJarFile.init(URLJarFile.java:51) at sun.net.www.protocol.jar.URLJarFile$1.run(URLJarFile.java:178) at java.security.AccessController.doPrivileged(Native Method) at sun.net.www.protocol.jar.URLJarFile.retrieve(URLJarFile.java:164) at sun.net.www.protocol.jar.URLJarFile.getJarFile(URLJarFile.java:42) at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:53) at sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:85) at sun.net.www.protocol.jar.JarURLConnection.getJarFile(JarURLConnection.java:69) at org.apache.catalina.startup.ContextConfig.tldConfigJar(ContextConfig.java:1107) at org.apache.catalina.startup.ContextConfig.tldConfig(ContextConfig.java:1079) at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:828) - locked 0x449e0340 (a org.apache.catalina.startup.ContextConfig) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:224) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:155) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1131) - locked 0x449dc800 (a org.apache.catalina.core.StandardContext) at org.apache.catalina.core.StandardContext.start(StandardContext.java:3371) - locked 0x449dc800 (a org.apache.catalina.core.StandardContext) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123) - locked 0x449cbda0 (a org.apache.catalina.core.StandardHost) at org.apache.catalina.core.StandardHost.start(StandardHost.java:638) - locked 0x449cbda0 (a org.apache.catalina.core.StandardHost) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123) - locked 0x449ad458 (a org.apache.catalina.core.StandardEngine) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:343) at org.apache.catalina.core.StandardService.start(StandardService.java:388) - locked 0x449ad458 (a org.apache.catalina.core.StandardEngine) at org.apache.catalina.core.StandardServer.start(StandardServer.java:506) - locked 0x449e0cf0 (a [Lorg.apache.catalina.Service;) at org.apache.catalina.startup.Catalina.start(Catalina.java:781) at org.apache.catalina.startup.Catalina.execute(Catalina.java:681) at org.apache.catalina.startup.Catalina.process(Catalina.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243) Dynamic libraries: 08048000-0804d000 r-xp 03:42 628983 /usr/java/j2re/bin/java 0804d000-0804e000 rw-p 4000 03:42 628983 /usr/java/j2re/bin/java 4000-40013000 r-xp 03:42 273681 /lib/ld-2.2.5.so 40013000-40014000 rw-p 00013000 03:42 273681 /lib/ld-2.2.5.so 40014000-4001d000 r-xp 03:42 518346 /usr/java/j2re/lib/i386/native_threads/libhpi.so 4001d000-4001e000 rw-p 8000 03:42 518346 /usr/java/j2re/lib/i386/native_threads/libhpi.so 4001e000-40024000 r--s 00:0a 19 /mnt/Web/tomcat/bin/bootstrap.jar 40024000-40027000 r--s 00:0a 31 /mnt/Web/tomcat/common/lib/jta-spec1_0_1.jar 40027000-40028000 r--p 03:42 80484 /usr/lib/locale/en_US.iso885915/LC_IDENTIFICATION 40028000-40029000 r--p 03:42 80485 /usr/lib/locale/en_US.iso885915/LC_MEASUREMENT 40029000-4002a000 r--p 03:42 80489 /usr/lib/locale/en_US.iso885915/LC_TELEPHONE 4002a000-4002b000 r--p 03:42 80483 /usr/lib/locale/en_US.iso885915/LC_ADDRESS 4002b000-40038000 r-xp 03:42 354164 /lib/i686/libpthread-0.9.so 40038000-4003f000 rw-p d000 03:42 354164 /lib/i686/libpthread-0.9.so 4004-40042000 r-xp 03:42 273694 /lib/libdl-2.2.5.so 40042000-40043000 rw-p 1000 03:42 273694 /lib/libdl-2.2.5.so 40043000-4030a000 r-xp 03:42 373482 /usr/java/j2re/lib/i386/client/libjvm.so 4030a000-40474000 rw-p 002c6000 03:42 373482 /usr/java/j2re/lib/i386/client/libjvm.so 40488000-4049a000 r-xp 03:42 273698 /lib/libnsl-2.2.5.so 4049a000-4049b000 rw-p 00012000 03:42
Re: problem with classpath modification
* William Claxton [EMAIL PROTECTED] [0221 05:21]: We encountered an issue when adding a classpath entry to the Tomcat (v4.1.18) 'setclasspath.sh' script. It so happens that the classpath entry '/home/web/mediaware/WEB-INF/classes' is already accessible as a context, but we need the classpath entry for some functions internal to our servlet. When we add this classpath entry using 'setclasspath.sh', Tomcat seems to loose its context. There are no errors in any of the startup logs, but servlets located in '/home/web/mediaware/WEB-INF/classes' cannot run properly. STR there's some problem doing this, it causes different classes to be loaded by different classloaders. If /home/web/mediaware is a webapp directory, then classes in WEB_INF/classes will be searched, as will jarfiles in WEB-INF/lib - if you don't need moroe than that I'd undo your changes to setclasspath.sh, and spare yourself a lot of pain. -- Jone's Law: The man who smiles when things go wrong has thought of someone to blame it on. Rasputin :: Jack of All Trades - Master of Nuns - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: problem with classpath modification
* Steve Guo [EMAIL PROTECTED] [0211 07:11]: U must be using UNIX, although I have no experience with UNIX, but let me throw out my thoughts at it. I use Tomcat 4.1.18 under Win200, no problem. In general I do not modify .sh or.bat file, when I need to put something .jar into the classpath of many webapps, I just do it using system variables (again windows). It's safer to stick it in CATALINA_HOME/common/lib , does the same thing I believe (that's how I installed PostGRESQL support in my webapps, anyway). And it's nice and portable too (across OSes, not servers). -- Nobody said computers were going to be polite. Rasputin :: Jack of All Trades - Master of Nuns - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat and Virtual Sites in IIS
Hi. I have one question. I'm trying to configure Tomcat 4.1.12 to work with IIS 5.0. All of my settings work properly, but I can't configure IIS Virtual Sites to serve .jsp pages by means of Tomcat (I have configured site in IIS - this site name is sklep.zlp.pl, and I have configured virtual directory naming 'oponyzimowe' under this site; I have configured virtual directory naming 'jakarta' under this site as well). I think it is correct, because when I connect over Internet to site http://sklep.zlp.pl/examples I can see that my Tomcat work and I be able to execute examples servlets and .jsp pages. However, if I try to connect over the Internet to the site http://sklep.zlp.pl/oponyzimowe/examples I see the IIS Error 404 - File Not Found. How can I configure my Tomcat and IIS to work with IIS Virtual Sites? If You have some idea please contact me. Konrad Rusz e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mac os x and class files
Hi, I would like to know your Mac OS X configuration. I have Tomcat 4.1.18 running standalone and in conjunction with JBoss 3.0.6 with Apples 1.4.n DP10 and OS X 10.2.4. With no problem what so ever. This all works with 1.3.1 also with no problem. In addition I have mod_jk2 installed and running Apache 2.0.44 with no problem. By the way I do not use the light version, I have also replace the LE version in JBoss to the full version. For your infor JBoss with Jetty works correctly. Regards, Tony On Saturday, Feb 22, 2003, at 04:44 Europe/Berlin, Warrren Burholt wrote: I'm using JDK 1.4. I'll go back to 1.3 although my 4.0.3 has the exact same problem with finding classes whether I'm using 1.3 or 1.4 After I have 1.3 running, if the problem persists in 4.1.18 (and not the 1.4 version!), at least I will know that the preview version is not the cause. And I did mean 4.1.18, although I see I have it named in usr/local as jakarta-tomcat-4.1.8-LE-jdk14 I'm really glad to hear that Tomcat works great on os x -- actually that has been my experience with jakarta-tomcat-4.0.3 except for the class mystery. Thank you for your help, Jake and Ian. From: Jake Robb [EMAIL PROTECTED] Date: Fri Feb 21, 2003 9:17:35 PM America/Montreal To: Tomcat Users List [EMAIL PROTECTED] Subject: Re: Mac os x and class files Reply-To: Tomcat Users List [EMAIL PROTECTED] The 1.4.x JDK isn't production-ready for OS X yet. There are developer preview versions, but they're far from reliable or complete at this time. -Jake Ian McFarland wrote: Are you using JDK1.3.1 or 1.4.1 on your OS X box? You know the default configuration for OS X is to use 1.3.1, and you should be doing so for production anyway. In any case, I use Tomcat 4.1.12 (not the LE version) on OS X 10.2.4 all the time. (And have on 10.2.3, 10.2.2, 10.2.1, 10.1.x...) and it worked consistently very well. Classloading always worked fine under all the conditions you specified. I haven't upgraded o 4.1.18 but I don't expect there are any new issues there. (Did you mean 8 or 18?) In any case, Tomcat runs great on OS X! -Ian On Friday, February 21, 2003, at 05:35 PM, Warrren Burholt wrote: Hello Tomcat Users, On os x 10.2.3 I installed jakarta-tomcat-4.1.8-LE-jdk14 in usr/local I cannot get Tomcat to load my classes. Besides putting them in webapps/ROOT/WEB-INF/classes, I have tried common/classes and shared/classes. I have reverted back to using jakarta-tomcat-4.0.3 And there I have only been able to access class files from jakarta-tomcat-4.0.3/classes and not from WEB-INF/classes I have searched on this problem and have followed the solutions, but nothing has worked. I suspect I am overlooking something basic. And I wonder if my problem is specific to Tomcat on a Mac? I have no problems with classes on my NT environment at work. Thanks for your help, Warren - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: AJP13 encryption
That's what I would do. Much easier than hacking around with the source. John -Original Message- From: Ian McFarland [mailto:[EMAIL PROTECTED] Sent: Friday, February 21, 2003 9:29 PM To: Tomcat Users List Subject: Re: AJP13 encryption Can't you just tunnel your AJP connection using ssh or stunnel or similar? I suppose you could hack the AJP connector to use TLS, but of course then you'd have to also rewrite your plugin (IIS or NSAPI) to know about TLS, too. Do you need something more than a secure pipe to pass your data through? If not, why not just make the pipe secure through external means (i.e. with ssh?) -Ian On Friday, February 21, 2003, at 06:11 PM, Jean wrote: Ian Handle the encryption via SSL at the IIS/iPlanet point, then go unencrypted to Tomcat...? That's what I do with Apache. Sorry if my message was unclear: i do need encryption between the web server and Tomcat. jean - Original Message - From: Jean [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Friday, February 21, 2003 7:16 PM Subject: AJP13 encryption Hi, I am looking for a solution to use IIS and/or iPlanet as reverse proxy connecting to Tomcat (and/or Jetty). AJP seems the most common solution but it does not seem to support any encryption between the webserver and Tomcat. I am looking for pointers on secure alternatives to AJP13. Thanks jean - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: applying server.xml changes without restarting server
The admin app does work. If you're having problems with it, perhaps posting details of those problems will get you a resolution. AFAIK, there is no facility for dynamically changing Tomcat config without a restart in 4.x. I believe there is talk of this for Tomcat 5, but I don't know for sure or know any details...this topic comes up every couple of weeks here on -user. Perhaps -dev would have a better answer for you. John -Original Message- From: Simone Chiaretta [mailto:[EMAIL PROTECTED] Sent: Friday, February 21, 2003 7:05 PM To: Tomcat Users List Subject: R: applying server.xml changes without restarting server -Messaggio originale- Da: Rasputin [mailto:[EMAIL PROTECTED] Inviato: sabato 22 febbraio 2003 0.48 A: Tomcat Users List Oggetto: Re: applying server.xml changes without restarting server * Simone Chiaretta [EMAIL PROTECTED] [0223 23:23]: Hello all, I'd like to know if there is a way to apply server.xml changes without restarting Tomcat? I noticed that even changes to tomcat-user.xml need a server restart... it there a way to see the changes without restarting? It really depend swhat you want to do - most things in server.xml can be configured in other ways - for eaxmple, if you want tp be able to configure username and passwords without restarting tomcat, you could use a jdbcrealm to store the password info. Similarly you can add/remove contexts using the manager app. Most parts of the config you need to restart for will be things like virtual hosts. I know about jdbcrealm and i tried using admin app but it mess up everything and nothing seems to be working again. thx simone - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: tomcat5.0 build problem
There is a good chance CVS is blocked by your firewall. It was for me. You can test this by: telnet cvs.apache.org 2401 If your connection times out - then your blocked by your firewall. -Tim Steve Guo wrote: Actually I am using Ant 1.5.1.Although my company has a firewall, we do not use a proxy server (?), because this is the setup in IE when accessing the Internet from office. In IE5.5, Tools | Internet Options | Connections | Lan Settings, proxy server is unchecked, 'Use automatic configuration script' is checked. But when using Yahoo Messenger or MSN messenger from office, I have to set the following: Use Proxies (checked) Enable HTTP proxy (checked) HTTP Proxy server name: FIREWALL server port: 80 --- So based on above, I make the following build.properties file: proxy.host=FIREWALL proxy.port=80 proxy.use=on base.path=/usr/local Still the same error message. I am really confused. Following Filip Hanik, I downloaded cvs, it is a challenge to set it up too. Actually I have been able to use the binary version (4.1.18) fine, but I thought I would try my luck building from source. Thanks all, steve Bill Barker [EMAIL PROTECTED] wrote:Since you are behind a firewall, make sure that you have set 'proxy.host', 'proxy.port', and 'proxy.use' in your build.properties file. They are commented out in the build.properties.default file. At a guess, the wall you are hitting first is due to using a version of Jakarta-Ant 1.5. You need to use at least 1.5 to build TC 5. Filip Hanik wrote in message news:[EMAIL PROTECTED] try this, cvs checkout jakarta-tomcat-5 cd jakarta-tomcat-5 ant download ant checkout ant dist Filip -Original Message- From: Steve Guo [mailto:[EMAIL PROTECTED] Sent: Friday, February 21, 2003 1:54 PM To: tomcatuser Subject: tomcat5.0 build problem Hi, this is the first time I tried to build tomcat from source, ran into the following problems. If you can provide your comment or point me to resource, I would appreciate it. Thanks. Steve 1. I followed the instructions in BUILDING.TXT, almost exactly - the Xerces2.2.1 I am using does not have xalan.jar, so I used the same file from Xalan2.4.1. 2. I got the following error after running ant: Buildfile: build.xml check.source: get.source: check.out: BUILD FAILED Build.xml:67: the task doesn't support the 'compression' attribute. 3. I am running behind corporate firewall. - Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, and more - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, and more - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [jetty-discuss] AJP13 encryption
On 22/2/03 0:16, Jean [EMAIL PROTECTED] wrote: Hi, I am looking for a solution to use IIS and/or iPlanet as reverse proxy connecting to Tomcat (and/or Jetty). AJP seems the most common solution but it does not seem to support any encryption between the webserver and Tomcat. I am looking for pointers on secure alternatives to AJP13. I don't know about AJP (I don't think it's possible), but mod_proxy of Apache 2.0 can contact the backhand server using HTTPS... Therefore you might have the following scenario: +-+ ++ HTTPS | Apache 2.0 | HTTPS +---+ | CLIENT |-| + mod_ssl |-| Jetty | ++ | + mod_proxy | +---+ +-+ I don't know if Apache 1.3 does the same (I haven't used it for the past year or so) but if it does, and you need load balancing between several instances of Jetty on the backend as well, you can use mod_backend as well... Pier - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: tomcat5.0 build problem
Hmm I've got Ant-1.5.2beta1 installed on Win2k and I can't get past here... build-main: [javac] Compiling 1 source file to D:\myclasses\Repository\Jakarta\tomcat5_2 003-02-21\jakarta-tomcat-5\build\server\webapps\admin\WEB-INF\classes [javac] This version of java does not support the classic compiler; upgradin g to modern [mkdir] Created dir: D:\myclasses\Repository\Jakarta\tomcat5_2003-02-21\jaka rta-tomcat-5\build\server\webapps\admin\WEB-INF\src\admin [mkdir] Created dir: D:\myclasses\Repository\Jakarta\tomcat5_2003-02-21\jaka rta-tomcat-5\build\webapps\ROOT\WEB-INF\src [mkdir] Created dir: D:\myclasses\Repository\Jakarta\tomcat5_2003-02-21\jaka rta-tomcat-5\build\webapps\ROOT\WEB-INF\classes [mkdir] Created dir: D:\myclasses\Repository\Jakarta\tomcat5_2003-02-21\jaka rta-tomcat-5\build\webapps\jsp-examples\WEB-INF\src [jasper2] Error in class org.apache.jasper.JspC BUILD FAILED file:D:/myclasses/Repository/Jakarta/tomcat5_2003-02-21/jakarta-tomcat-5/build.x ml:265: org.apache.jasper.JasperException: Error compiling \jsp2\tagfiles\hello. jsp Jake At 08:15 PM 2/21/2003 -0800, you wrote: Since you are behind a firewall, make sure that you have set 'proxy.host', 'proxy.port', and 'proxy.use' in your build.properties file. They are commented out in the build.properties.default file. At a guess, the wall you are hitting first is due to using a version of Jakarta-Ant 1.5. You need to use at least 1.5 to build TC 5. Filip Hanik [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] try this, cvs checkout jakarta-tomcat-5 cd jakarta-tomcat-5 ant download ant checkout ant dist Filip -Original Message- From: Steve Guo [mailto:[EMAIL PROTECTED] Sent: Friday, February 21, 2003 1:54 PM To: tomcatuser Subject: tomcat5.0 build problem Hi, this is the first time I tried to build tomcat from source, ran into the following problems. If you can provide your comment or point me to resource, I would appreciate it. Thanks. Steve 1. I followed the instructions in BUILDING.TXT, almost exactly - the Xerces2.2.1 I am using does not have xalan.jar, so I used the same file from Xalan2.4.1. 2. I got the following error after running ant: Buildfile: build.xml check.source: get.source: check.out: BUILD FAILED Build.xml:67: the cvs task doesn't support the 'compression' attribute. 3. I am running behind corporate firewall. - Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, and more - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mac os x and class files
Here is the version of my java 1.4.1 DP10. java -version java version 1.4.1 Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-24) Java HotSpot(TM) Client VM (build 1.4.1_01-12, mixed mode) Since Tony states that he is using 1.4.1 and 4.1.18, I installed 4.1.18. Running Tomcat standalone on 10.2.3 I have the same situation as before. My class files are not being found. I've put them everywhere I could think to test. /usr/local/jakarta-tomcat-4.1.18/webapps/ROOT/529_jsp_021103/WEB-INF/ classes /usr/local/jakarta-tomcat-4.1.18/webapps/ROOT/WEB-INF/classes /usr/local/jakarta-tomcat-4.1.18/common/classes /usr/local/jakarta-tomcat-4.1.18/shared/classes /usr/local/jakarta-tomcat-4.1.18/classes Any additional suggestions for testing would be greatly appreciated. Warren From: Anthony Marlowe [EMAIL PROTECTED] Date: Sat Feb 22, 2003 6:39:20 AM America/Montreal To: Tomcat Users List [EMAIL PROTECTED] Subject: Re: Mac os x and class files Reply-To: Tomcat Users List [EMAIL PROTECTED] Hi, I would like to know your Mac OS X configuration. I have Tomcat 4.1.18 running standalone and in conjunction with JBoss 3.0.6 with Apples 1.4.n DP10 and OS X 10.2.4. With no problem what so ever. This all works with 1.3.1 also with no problem. In addition I have mod_jk2 installed and running Apache 2.0.44 with no problem. By the way I do not use the light version, I have also replace the LE version in JBoss to the full version. For your infor JBoss with Jetty works correctly. Regards, Tony On Saturday, Feb 22, 2003, at 04:44 Europe/Berlin, Warrren Burholt wrote: I'm using JDK 1.4. I'll go back to 1.3 although my 4.0.3 has the exact same problem with finding classes whether I'm using 1.3 or 1.4 After I have 1.3 running, if the problem persists in 4.1.18 (and not the 1.4 version!), at least I will know that the preview version is not the cause. And I did mean 4.1.18, although I see I have it named in usr/local as jakarta-tomcat-4.1.8-LE-jdk14 I'm really glad to hear that Tomcat works great on os x -- actually that has been my experience with jakarta-tomcat-4.0.3 except for the class mystery. Thank you for your help, Jake and Ian. From: Jake Robb [EMAIL PROTECTED] Date: Fri Feb 21, 2003 9:17:35 PM America/Montreal To: Tomcat Users List [EMAIL PROTECTED] Subject: Re: Mac os x and class files Reply-To: Tomcat Users List [EMAIL PROTECTED] The 1.4.x JDK isn't production-ready for OS X yet. There are developer preview versions, but they're far from reliable or complete at this time. -Jake Ian McFarland wrote: Are you using JDK1.3.1 or 1.4.1 on your OS X box? You know the default configuration for OS X is to use 1.3.1, and you should be doing so for production anyway. In any case, I use Tomcat 4.1.12 (not the LE version) on OS X 10.2.4 all the time. (And have on 10.2.3, 10.2.2, 10.2.1, 10.1.x...) and it worked consistently very well. Classloading always worked fine under all the conditions you specified. I haven't upgraded o 4.1.18 but I don't expect there are any new issues there. (Did you mean 8 or 18?) In any case, Tomcat runs great on OS X! -Ian On Friday, February 21, 2003, at 05:35 PM, Warrren Burholt wrote: Hello Tomcat Users, On os x 10.2.3 I installed jakarta-tomcat-4.1.8-LE-jdk14 in usr/local I cannot get Tomcat to load my classes. Besides putting them in webapps/ROOT/WEB-INF/classes, I have tried common/classes and shared/classes. I have reverted back to using jakarta-tomcat-4.0.3 And there I have only been able to access class files from jakarta-tomcat-4.0.3/classes and not from WEB-INF/classes I have searched on this problem and have followed the solutions, but nothing has worked. I suspect I am overlooking something basic. And I wonder if my problem is specific to Tomcat on a Mac? I have no problems with classes on my NT environment at work. Thanks for your help, Warren --- -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: tomcat5.0 build problem
This a known issue due to pre-compiling all the JSP's that the developers are working through. For now - make the task optional by added an if condition to the target definition, for example: target name=build-webapps-precompile depends=init description=Builds the admin webapp if=precompile_webapps Then this will skip this task UNLESS you pass -Dprecompile_webapps=true on the ant command line. For example: ant -Dprecompile_webapps=true clean deploy OR You can just ignore this error because it is the last step of the build and tomcat5 should start up fine. -Tim Jacob Kjome wrote: Hmm I've got Ant-1.5.2beta1 installed on Win2k and I can't get past here... build-main: [javac] Compiling 1 source file to D:\myclasses\Repository\Jakarta\tomcat5_2 003-02-21\jakarta-tomcat-5\build\server\webapps\admin\WEB-INF\classes [javac] This version of java does not support the classic compiler; upgradin g to modern [mkdir] Created dir: D:\myclasses\Repository\Jakarta\tomcat5_2003-02-21\jaka rta-tomcat-5\build\server\webapps\admin\WEB-INF\src\admin [mkdir] Created dir: D:\myclasses\Repository\Jakarta\tomcat5_2003-02-21\jaka rta-tomcat-5\build\webapps\ROOT\WEB-INF\src [mkdir] Created dir: D:\myclasses\Repository\Jakarta\tomcat5_2003-02-21\jaka rta-tomcat-5\build\webapps\ROOT\WEB-INF\classes [mkdir] Created dir: D:\myclasses\Repository\Jakarta\tomcat5_2003-02-21\jaka rta-tomcat-5\build\webapps\jsp-examples\WEB-INF\src [jasper2] Error in class org.apache.jasper.JspC BUILD FAILED file:D:/myclasses/Repository/Jakarta/tomcat5_2003-02-21/jakarta-tomcat-5/build.x ml:265: org.apache.jasper.JasperException: Error compiling \jsp2\tagfiles\hello. jsp Jake At 08:15 PM 2/21/2003 -0800, you wrote: Since you are behind a firewall, make sure that you have set 'proxy.host', 'proxy.port', and 'proxy.use' in your build.properties file. They are commented out in the build.properties.default file. At a guess, the wall you are hitting first is due to using a version of Jakarta-Ant 1.5. You need to use at least 1.5 to build TC 5. Filip Hanik [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] try this, cvs checkout jakarta-tomcat-5 cd jakarta-tomcat-5 ant download ant checkout ant dist Filip -Original Message- From: Steve Guo [mailto:[EMAIL PROTECTED] Sent: Friday, February 21, 2003 1:54 PM To: tomcatuser Subject: tomcat5.0 build problem Hi, this is the first time I tried to build tomcat from source, ran into the following problems. If you can provide your comment or point me to resource, I would appreciate it. Thanks. Steve 1. I followed the instructions in BUILDING.TXT, almost exactly - the Xerces2.2.1 I am using does not have xalan.jar, so I used the same file from Xalan2.4.1. 2. I got the following error after running ant: Buildfile: build.xml check.source: get.source: check.out: BUILD FAILED Build.xml:67: the cvs task doesn't support the 'compression' attribute. 3. I am running behind corporate firewall. - Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, and more - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
web site security and users/passwords
I have been testing web site security on my test server at home and I can authenticate users just fine. But the only way I can add and remove users is to add and remove them in tomcat-users.xml. But that file is owned by the server, so whenever I put my web application out on a host server, I won't be able to edit their tomcat-users.xml. This seems like a major design flaw. Is there any way to administer users from within the directory of my own web application and still take advantage of the build in web security features of tomcat? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
including header, footer in jsp
Hi all, If I want to design an application such that I have a template for the footer, header, side menus etc.. And I want to include that in all my jsp pages without copying the whole of it. How can I do it? Thanks for any help. Runu __ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[O.T.] Installing struts under tomcat 4 and apache 2
Hello. I'm trying to install struts 1.0.2 under red hat 7.2, with tomcat 4.1.18 and apache 2.0.44. I've read the documentation here http://jakarta.apache.org/struts/userGuide/installation-tc.html but it refers to tomcat 3.2, not tomcat 4.0. It says Note that the instructions for Tomcat 4 will be different than those for Tomcat 3, but the Tomcat 4.0 web connector is still under development. Versions of Tomcat prior to 3.2.1 are not recommend for use with Struts. ¿What about tomcat 4? The documentation talk about a file: Tomcat will generate a file $TOMCAT_HOME/conf/tomcat-apache.conf that will be used by Apache. This file is regenerated every time you start Tomcat, so copy this file to a safe place (such as your Apache configuration directory; on Unix systems this is usually /usr/local/apache/conf. . But I can't find this file (or it doesn't exist). ¿Which file must I configure? Thank you very much. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
DataSource does not work
Hello,
i can not use a DataSource for jdbc- Connection. I tested it with sapdb
and sql server 2000. No one works. But it is no problem, to connect the
database over the jdbc directly.
My Equipment:
Windows XP, JDK 1.4.1, Tomcat 4.1.18 LE.
When I use it, i get some http error 500?!?
org.apache.jasper.JasperException:
org/apache/commons/pool/impl/GenericObjectPool
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja
va:248)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
Can some help me?
The context from server xml
Context path=/wolf docBase=wolf debug=0
reloadable=true
Logger className=org.apache.catalina.logger.FileLogger
prefix=localhost_DBTest_log. suffix=.txt timestamp=true/
Resource name=jdbc/TestDB auth=Container
type=javax.sql.DataSource/
ResourceParams name=jdbc/TestDB
parameter
namefactory/name
valueorg.apache.commons.dbcp.BasicDataSourceFactory/value
/parameter
parameter
namemaxActive/name
value100/value
/parameter
parameter
namemaxIdle/name
value30/value
/parameter
parameter
namemaxWait/name
value1/value
/parameter
parameter
nameusername/name
valuedba/value
/parameter
parameter
namepassword/name
valuedba/value
/parameter
parameter
namedriverClassName/name
valuecom.sap.dbtech.jdbc.DriverSapDB/value
/parameter
parameter
nameurl/name
valuejdbc:sapdb://127.0.0.1/wolf/value
/parameter
/ResourceParams
/Context
Web.xml
resource-ref
descriptionDatenquelle fuer Wolf-Plantafel/description
res-ref-namejdbc/TestDB/res-ref-name
res-typejavax.sql.DataSource/res-type
res-authContainer/res-auth
/resource-ref
The java code:
try {
initCtx = new InitialContext();
dummy = Nach Initial Context;
ds = (DataSource) initCtx.lookup(java:comp/env/jdbc/TestDB);
/* This point will execute the error, ds can not be initializied!
*/
-
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Virtual Hosting with apache and tomcat
Hello, i will setup an tomcat server in combination with an apache httpd to serv a few Websites with dynamic content and servlets. I'm working with the ajp13 connector to connect apache and tomcat. With the normal configuration i have following situation: Servlet-Contexts: aaa, bbb Webservers: http://www.aaa.de, http://www.bbb.de and i can only reach http://www.aaa.de/aaa and http://www.bbb.de/bbb the Servlet contexts. Is it possible to configure apache / Tomcat in that way to reach Servlet-Context aaa directly as http://www.aaa.de and Servlet-Context bbb as http://www.bbb.de Until now i don't find any information about this konfiguration. Thanks for Information \Robert Einsle - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
#INCLUDE question
I have Tomcat 4.1.12 installed on WinXP. I am attempting to do an SSI and it appears that the command is not being recognized. Here is the command: !-- #INCLUDE file=js/CMS_header.js -- The include appears to NOT be occuring and I get no errors when I run the html. Do I need to set a setting in Tomcat to turn SSI on? If so, what must I do? Thank you for your help. - Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, and more
[OT] a good book for (pre) web design ?
Hi, I'm looking for a book, that helps/guides me through a website planning. Explanation will get rather lenghty, so I'm looking for some experienced guy, I can ask for some ressources. (* replies please in PM, since i do not want to clutter the mailinglist *) (* I believe the amount here is enourmourous (?) 100 mails / day*) - I have oreily 'Information architecture' which says, you need - navigation - meta data - search - books about jsp, servlet, xslt - i know how to use html, ssi and php But i'm really stuck in planing a new site from scratch. One thing i'm interested in, is a book, that asks me the right questions, guides me through the process. [...] I wrote down many questions, but mainly it boils down to 2 questins: - How to architect a site ? (Here i have some ideas / help) - layout - directory structure - URL structure (they should not change in the future) - do's - don'ts - How do i implement the site (howto combine the tools avaible) ? (here i'm totally lost, in the sheer amount of things avaible. they are all good, for the stuff, they were written, but for most, i can't determine the purpose, and they all seem like hen-cow-pig soltions (egg, milk meat) so one 4 all solution) - what tools are avaible, and where are they usefull (strength, weaknesses, small solution enterprise solution, setup time, administration, stable...) - content solutions - static xhtml from xslt - struts - jsp servlets - metadata manangement for search engines - database comparison (this was already solved in another email) Currently I'm very afraid of a redisign or at worst a total relaunch, because i used the wrong technic - so i want to do things right from the scratch, or at least try to minimize the number of flaws. I've been searching for a book, that gives me support for my questions, but those books i found explain one technics (like jsp, servlet, html,... ) but they do not tell me, how the combine those. P.S.: Where is a good place to ask tomcat, jsp, servlet, logging related questions ? [OT] is quiet popular here and the answers were always very helpfull to me, but they do not belong here. Who knows a good community ? Ciao Jens Skripczynski -- E-Mail: skripi(at)myrealbox(dot)com Gehe Grosse Dinge mit Gelassenheit an. [...] Und nehme kleine Dinge ernst. -- aus Ghost Dog - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: #INCLUDE question
The README that comes with tomcat says how to turn on SSI. -Tim T S wrote: I have Tomcat 4.1.12 installed on WinXP. I am attempting to do an SSI and it appears that the command is not being recognized. Here is the command: !-- #INCLUDE file=js/CMS_header.js -- The include appears to NOT be occuring and I get no errors when I run the html. Do I need to set a setting in Tomcat to turn SSI on? If so, what must I do? Thank you for your help. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: #INCLUDE question
You'd save yourself some time if you took about 2 seconds to look at the docs Tomcat provides to see if your question is answered there before posting to this list. http://jakarta.apache.org/tomcat/tomcat-4.1-doc/index.html http://jakarta.apache.org/tomcat/tomcat-4.1-doc/ssi-howto.html Jake At 01:50 PM 2/22/2003 -0800, you wrote: I have Tomcat 4.1.12 installed on WinXP. I am attempting to do an SSI and it appears that the command is not being recognized. Here is the command: !-- #INCLUDE file=js/CMS_header.js -- The include appears to NOT be occuring and I get no errors when I run the html. Do I need to set a setting in Tomcat to turn SSI on? If so, what must I do? Thank you for your help. - Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, and more
Re: Virtual Hosting with apache and tomcat
Robert Einsle: Servlet-Contexts: aaa, bbb Webservers: http://www.aaa.de, http://www.bbb.de and i can only reach http://www.aaa.de/aaa and http://www.bbb.de/bbb the Servlet contexts. you can try to use Context path= docBase=ROOT debug=0/ as in the server.xml. That maps ROOT to / So i believe (!) with this you can access your Context in the root directory. Ciao Jens Skripczynski -- E-Mail: skripi(at)myrealbox(dot)com ...The box said use Win95 or better, so I installed Linux... - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Cookie problem on Redhat 7.3 and tomcat 4.1.18
Hi all I am having problems setting a cooike on a RedHat 7.3 with tomcat 4.1.18 and JDK141_01. The thing is, that I am able to read and write cookies on the same configuration on a WinXP. The code setting the cookie is: Cookie userVote = new Cookie(havepolled, somethingmeaningfull); userVote.setPath(data.getRequest().getContextPath()); userVote.setMaxAge(2592000); data.getResponse().addCookie(userVote); I have tried and make a new install, without modifying the server.xml file. I works on Windows but not on Linux? How come the behavior differs? Any suggestions on how to fix this are very welcome! /Henrik - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RE: web.xml servlet and resources
One way to deal with this issue is to break down the file type in the someservlet directory rathen than having a URL mapping for the whole directory. Say for all JSP files, you have servlet-mapping servlet-nameTheServlet/servlet-name url-pattern/*.jsp/url-pattern /servlet-mapping Hope this helps. 30/01/2003 10:40:33 AM, Richard Wallace [EMAIL PROTECTED] wrote: On Thu, 2003-01-30 at 05:43, Daniel Brown wrote: Richard, You could use HttpServletRequest.getPathInfo() to read the extra path information after servlet name, read the corresponding object from disk, set an appropriate MIME type, and then send the object back in the response. But it's a lot of new code for something that doesn't seem like a good thing to do. I had thought about that and decided it was a bit inelegant a solution (especially when it should be easier and require no additional code). Why not just, - use a standard webapp structure, - map the servlet to '/someservlet' as you describe, - make an images subdirectory, and - link to the images using img src=images/foo.gif from within your servlet? That's what I'm trying to do. The question I have is where should the images directory go in the webapp layout and how do I configure web.xml so that the servlet doesn't catch requests to /someservlet/images/foo.gif? Right now what I have is a situation where the servlet is mapped to /. So the servlet address is http://localhost:8080/someservlet. I have the images directory at the root of the webapp (so there is a drectory $CATALINA_HOME/webapps/someservlet/images). But when I try and retrieve an image using http://localhost:8080/someservlet/images/foo.gif the servlet is sent the request. My web.xml is as below. webapp display-nameSomeServletOfMine/display-name servlet servlet-nameTheServlet/servlet-name servlet-classcom.some.Servlet/servlet-name /servlet servlet-mapping servlet-nameTheServlet/servlet-name url-pattern//url-pattern /servlet-mapping /webapp So what above needs to change so that a URL of http://localhost:8080/someservlet/images/foo.gif is not processed by TheServlet? Thanks. Then, Tomcat does all the work for you. Use the ROOT webapp if you don't want the name of the webapp in the URL. If you want all requests to run through the servlet for security reasons, or something, then you should possibly consider using a Servlet 2.3 Filter instead - this is exactly what they're designed for. Dan. -Original Message- From: Richard Wallace [mailto:[EMAIL PROTECTED] Sent: 30 January 2003 00:17 To: [EMAIL PROTECTED] Subject: web.xml servlet and resources Hello all, This is a fairly simple problem but I haven't been able to find an answer anywhere (I've been looking for the past day or two). I'm hoping this is a common situation and is possible, but from what I've seen I can't see how. What I want is for the resources (images, css files, etc.) to be in a path relative to the servlet. So, if I have an images directory and the servlet URL is http://www.domain.com/some-servlet, the images should be accessible from this URL, http://www.domain.com/some-servlet/images. So, I want to set the URL pattern for some-servlet to be /. If I do that then every URL beginning with that will be grabbed by the servlet, including http://www.domain.com/some-servlet/images/logo.gif (as an example). Suggestions? Thanks. -- Richard Wallace AIM, Inc. (www.a--i--m.com) Information Systems Consultants Providing New Technology, the Old-Fashioned Way - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Richard Wallace AIM, Inc. (www.a--i--m.com) Information Systems Consultants Providing New Technology, the Old-Fashioned Way - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Getting Tomcat to _only_ listen to localhost
I'd like for the standalone HTTP server and the Coyote/JK2 AJP 1.3 Connector to only listen to localhost. I tried setting defaultHost=localhost in the connector (for example) and that still leaves me with *.8009 ... Any ideas how to do this? Thanks, /jordan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [OT] a good book for (pre) web design ?
If you intend to employ the J2EE technologies to build a web application, Rod Johnson's new book, Expert One on One J2EE Design and Development shall be a very good resource. 22/02/2003 1:52:35 PM, Jens Skripczynski [EMAIL PROTECTED] wrote: Hi, I'm looking for a book, that helps/guides me through a website planning. Explanation will get rather lenghty, so I'm looking for some experienced guy, I can ask for some ressources. (* replies please in PM, since i do not want to clutter the mailinglist *) (* I believe the amount here is enourmourous (?) 100 mails / day*) - I have oreily 'Information architecture' which says, you need - navigation - meta data - search - books about jsp, servlet, xslt - i know how to use html, ssi and php But i'm really stuck in planing a new site from scratch. One thing i'm interested in, is a book, that asks me the right questions, guides me through the process. [...] I wrote down many questions, but mainly it boils down to 2 questins: - How to architect a site ? (Here i have some ideas / help) - layout - directory structure - URL structure (they should not change in the future) - do's - don'ts - How do i implement the site (howto combine the tools avaible) ? (here i'm totally lost, in the sheer amount of things avaible. they are all good, for the stuff, they were written, but for most, i can't determine the purpose, and they all seem like hen-cow-pig soltions (egg, milk meat) so one 4 all solution) - what tools are avaible, and where are they usefull (strength, weaknesses, small solution enterprise solution, setup time, administration, stable...) - content solutions - static xhtml from xslt - struts - jsp servlets - metadata manangement for search engines - database comparison (this was already solved in another email) Currently I'm very afraid of a redisign or at worst a total relaunch, because i used the wrong technic - so i want to do things right from the scratch, or at least try to minimize the number of flaws. I've been searching for a book, that gives me support for my questions, but those books i found explain one technics (like jsp, servlet, html,... ) but they do not tell me, how the combine those. P.S.: Where is a good place to ask tomcat, jsp, servlet, logging related questions ? [OT] is quiet popular here and the answers were always very helpfull to me, but they do not belong here. Who knows a good community ? Ciao Jens Skripczynski -- E-Mail: skripi(at)myrealbox(dot)com Gehe Grosse Dinge mit Gelassenheit an. [...] Und nehme kleine Dinge ernst. -- aus Ghost Dog - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RE: web.xml servlet and resources
After sent out the previous email, I just recoginzed the orginal one was more than two weeks ago. Sorry for unwanted reply. 22/02/2003 3:46:48 PM, Vernon Wu [EMAIL PROTECTED] wrote: One way to deal with this issue is to break down the file type in the someservlet directory rathen than having a URL mapping for the whole directory. Say for all JSP files, you have servlet-mapping servlet-nameTheServlet/servlet-name url-pattern/*.jsp/url-pattern /servlet-mapping Hope this helps. 30/01/2003 10:40:33 AM, Richard Wallace [EMAIL PROTECTED] wrote: On Thu, 2003-01-30 at 05:43, Daniel Brown wrote: Richard, You could use HttpServletRequest.getPathInfo() to read the extra path information after servlet name, read the corresponding object from disk, set an appropriate MIME type, and then send the object back in the response. But it's a lot of new code for something that doesn't seem like a good thing to do. I had thought about that and decided it was a bit inelegant a solution (especially when it should be easier and require no additional code). Why not just, - use a standard webapp structure, - map the servlet to '/someservlet' as you describe, - make an images subdirectory, and - link to the images using img src=images/foo.gif from within your servlet? That's what I'm trying to do. The question I have is where should the images directory go in the webapp layout and how do I configure web.xml so that the servlet doesn't catch requests to /someservlet/images/foo.gif? Right now what I have is a situation where the servlet is mapped to /. So the servlet address is http://localhost:8080/someservlet. I have the images directory at the root of the webapp (so there is a drectory $CATALINA_HOME/webapps/someservlet/images). But when I try and retrieve an image using http://localhost:8080/someservlet/images/foo.gif the servlet is sent the request. My web.xml is as below. webapp display-nameSomeServletOfMine/display-name servlet servlet-nameTheServlet/servlet-name servlet-classcom.some.Servlet/servlet-name /servlet servlet-mapping servlet-nameTheServlet/servlet-name url-pattern//url-pattern /servlet-mapping /webapp So what above needs to change so that a URL of http://localhost:8080/someservlet/images/foo.gif is not processed by TheServlet? Thanks. Then, Tomcat does all the work for you. Use the ROOT webapp if you don't want the name of the webapp in the URL. If you want all requests to run through the servlet for security reasons, or something, then you should possibly consider using a Servlet 2.3 Filter instead - this is exactly what they're designed for. Dan. -Original Message- From: Richard Wallace [mailto:[EMAIL PROTECTED] Sent: 30 January 2003 00:17 To: [EMAIL PROTECTED] Subject: web.xml servlet and resources Hello all, This is a fairly simple problem but I haven't been able to find an answer anywhere (I've been looking for the past day or two). I'm hoping this is a common situation and is possible, but from what I've seen I can't see how. What I want is for the resources (images, css files, etc.) to be in a path relative to the servlet. So, if I have an images directory and the servlet URL is http://www.domain.com/some-servlet, the images should be accessible from this URL, http://www.domain.com/some-servlet/images. So, I want to set the URL pattern for some-servlet to be /. If I do that then every URL beginning with that will be grabbed by the servlet, including http://www.domain.com/some-servlet/images/logo.gif (as an example). Suggestions? Thanks. -- Richard Wallace AIM, Inc. (www.a--i--m.com) Information Systems Consultants Providing New Technology, the Old-Fashioned Way - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Richard Wallace AIM, Inc. (www.a--i--m.com) Information Systems Consultants Providing New Technology, the Old-Fashioned Way - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Apache modules with Tomcat
Is there a way to add modules to servlet processing? For instance, I'd like to add mod_headers to attach extra headers to the output of a servlet without changing the servlet itself. Can the filter functionality of Apache2 help me here? Thanks, /jordan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: including header, footer in jsp
Read David Greay's Advanced JavaServer Pages. You will get the answer for your question. 22/02/2003 10:25:02 AM, runu rathi [EMAIL PROTECTED] wrote: Hi all, If I want to design an application such that I have a template for the footer, header, side menus etc.. And I want to include that in all my jsp pages without copying the whole of it. How can I do it? Thanks for any help. Runu __ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Internationalization question
I wrote a JSP that looks like this: % page language=java contentType=text/html; charset=UTF-8 % html headtitleTest page/title/head bodypbigTest page/big/p pThis page tests various display functions./p pThis is UTF-8 Japanese text: %= \u4eca\u65e5\u306f\u4e16\u754c %/p form method=post action=index.jsp pPlease enter some UTF-8 encoded text: input type=text name=test//p pinput type=submit//p /form % if(request.getParameter(test) != null) out.println(pThis is the text you entered: ' + new String(request.getParameter(test).getBytes(), UTF-8) + '/p); % /body /html When I use this JSP, it shows up a text input. I use kinput2/Mozilla to input some Japanese text, hit submit, and then it displays the Japanese text back to me. What I'm wondering is, why does this work? If simply use out.println(request.getParameter(test)) then it displays garbage. For some reason, I must convert the parameter to bytes and then convert it right back to a String with UTF-8 encoding. I'm not really sure what is going on here. Thanks for any comments on this. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [OT] a good book for (pre) web design ?
- Original Message - ... 22/02/2003 1:52:35 PM, Jens Skripczynski [EMAIL PROTECTED] wrote: Hi, I'm looking for a book, that helps/guides me through a website planning. ... - i know how to use html, ssi and php But i'm really stuck in planing a new site from scratch. ... Jens, I have no intention to confuse or scare you but I don't think there's a book available that brings you up to speed in web architecture for large or complex systems especially if there other legacy or backend systems involved. If the site you plan to rearchitect is a commercial site that has even a chance to become complex do yourself the favor and hire somebody with experience in this area and do not get burned as many before did. Believe me, there is no how-to book if it's getting hairy ;-) Good luck! -- Bernd - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: OT: Is it ok to close connection in finalize() ?
GC'ing is done in parallel now... as far as I know, it won't halt all
threads... it's not as bad with the new JVM's.
| -Original Message-
| From: Warden, Matt [mailto:[EMAIL PROTECTED]
| Sent: Saturday, February 22, 2003 3:02 AM
| To: Tomcat Users List
| Subject: RE: OT: Is it ok to close connection in finalize() ?
|
| On Feb 20, Mike Jackson had something to say about RE: OT: Is it ok to...
|
| finalize() is indeed guaranteed to run upon garbage collection, which
| in
| turn is guaranteed to happen. However, garbage collection can
| happen at any
| time, so the connection may not be closed immediately. If this
| is an issue
| for you, you can call System.gc() to force it to garbage collect
| immediately.
|
| True, but the garbage collector doesn't have to collect everything. So
| even
| if you call it directly you can't count on it collecting some or all of
| the
| available object.
|
| That's not the half of it. Garbage collection requires that all running
| threads (except its own) are halted. In other words, not only does it
| stall the execution of your method for a couple seconds, but it also
| stalls the execution of ALL executing java code running on that VM
| instance. You can imagine what that does to performance.
|
| This is why you want to avoid unnecessary object creation (like using
| Integer wrapper for nothing else but holding an int). This is also why you
| want to keep objects in as small scope as possible (within reason --
| there's no need to localize each section of code with { and }
| unnecessarily) -- to ensure that garbage collection, when it does run, can
| collect as much as possible. e.g. pass in a long representing the date and
| create the date object (new Date(long)) within the method, when
| possible. This usually means duplicate code (i.e. public void
| mymethod(long time), public void mymethod(Date date)), so that's something
| to consider.
|
| Anyways, bottom line:
| System.gc() is almost always a bad idea.
|
| One exception might be a garbage collect feature in an IDE written in
| java. There aren't many more.
|
| See the following article by JavaWorld (reproduced on IBM's website):
| http://www-106.ibm.com/developerworks/java/library/j-jw-performance.html
|
|
| --
| mattwarden
| mattwarden.com
|
|
| -
| To unsubscribe, e-mail: [EMAIL PROTECTED]
| For additional commands, e-mail: [EMAIL PROTECTED]
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Re: Internationalization question
... When I use this JSP, it shows up a text input. I use kinput2/Mozilla to input some Japanese text, hit submit, and then it displays the Japanese text back to me. What I'm wondering is, why does this work? If simply use out.println(request.getParameter(test)) then it displays garbage. For some reason, I must convert the parameter to bytes and then convert it right back to a String with UTF-8 encoding. I'm not really sure what is going on here. Thanks for any comments on this. with request.getParameter(test) you get the iso-8859-1 encoded utf-8 data (which is encoded with us_ascii) - an double encoded string. _ Get 25MB, POP3, Spam Filtering with LYCOS MAIL PLUS for $19.95/year. http://login.mail.lycos.com/brandPage.shtml?pageId=plusref=lmtplus - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
custom tag problems
I am trying to create my first custom tag and I am getting an Unable to load class banner. I believe I have the .tld file coded properly and the java class corresponding to banner in the right directory corresponding to the package. The CLASSPATH and PATH envoronment variables seem to be correct. Any thoughts would be greatly appreciated. __ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Odd classloader behavior in Tomcat 4.x
Hi all, I'm having trouble executing a JSP page that is throwing NoClassDefFoundError for a class that it should find. The JSP page instantiates an object via the tag: jsp:useBean id=loginBean class=ipa.LoginBean scope=session/ The class ipa.LoginBean is in WEB-INF/lib/ipa.jar. However, it references a class com.ibm.db.Statement which I've placed in $CATALINA_HOME/shared/lib/ivjdab35.jar in my Tomcat 4.1.8 server (I also have it in $CATALINA_HOME/lib/ivjdab35.jar in my Tomcat 4.0.6 server). The .java file for the JSP page compiles to a .class file fine, but then it throws the exception as follows: Line 58 of the .java file is: java.lang.NoClassDefFoundError: com/ibm/db/Statement at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:1590) at java.lang.Class.getConstructor0(Class.java:1762) at java.lang.Class.newInstance0(Class.java:276) at java.lang.Class.newInstance(Class.java:259) at java.beans.Beans.instantiate(Beans.java:204) at java.beans.Beans.instantiate(Beans.java:48) at org.apache.jsp.index_jsp._jspService(index_jsp.java:58) ... loginBean = (ipa.LoginBean) java.beans.Beans.instantiate(this.getClass().getClassLoader(), ipa.LoginBean); I can't figure out why the servlet engine can compile the page but not run it. Furthermore, the behavior between the 4.0.6 and 4.1.8 server is different as well. On 4.0.6, I get the error only the first time that I access the page after restarting Tomcat. Subsequent requests succeed! On 4.1.8, it fails every request. Lastly, if I copy ivjdab35.jar into WEB-INF/lib, it works properly every time. Am I being obtuse here and fundamentally misunderstanding how Tomcat's classloader works, or is something odd occuring here? Thanks for any help! Best regards, Richard - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: OT: Is it ok to close connection in finalize() ?
On Sat, 2003-02-22 at 17:38, Jacob Hookom wrote: GC'ing is done in parallel now... as far as I know, it won't halt all threads... it's not as bad with the new JVM's. Yes, AFAIK, GC will not halt newer JVMs. However, there are still many many problems with finlizers and System.gc(): 1. Finalizers are called when the object is actually collected. There are absolutely no guarantees on when this will happen, if ever. It is perfectly within spec for a GC to wait forever to collect any particular object. Also, if the JVM proc is kill -9'ed, then it may exit without calling any finalizers. See also problem #3 below. Will your data still be in a valid state if that happens? 2. With very few exceptions, calling System.gc() is a bad idea. The JVM knows what it's doing better than you do. 3. Finalizers have a problem within the class hierarchy: subclasses do not automatically call super.finalize(), so if you write a class which is non-final, and someone else subclasses, its finalizer might not even be called when the object is gc'ed. Will your data still be in a valid state? 4. From what I can tell, the main reason to have a finalize() method is if your object has some kind of JNI resources that it needs to clean up outside of the JVM. JNI itself has less and less purpose as JVMs have become as fast as, or even faster than, native code. Of course, JNI will always be needed for some things, so this is a legitimate use of finalize(). So... bottom line: Unless you are doing something like using JNI, don't use finalizers. One other poster sugested that it is a good idea to be careful about creating and then abandoning small objects. Modern gcs are very very fast. I wouldn't worry about this at all unless it is clearly shown to be a performance problem in real life. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Clustering with Tomcat
Hi All, I recently read this article http://www.onjava.com/pub/a/onjava/2002/07/17/tomcluster.html On Clustering using javaspaces technology. They have provided a source code for this soluion in the 3rd page of the article. I need to know whether anyone who tried it and got all working I am having few problems configuring it. If anyone have tried plese Reply. Thank You Rif Take benefit of five before five: your youth before your old age, your health before your sickness, your wealth before your poverty, your free-time before your preoccupation, and your life before your death. [Muhammad sallallaahu `alayhi wa sallam - al-Haakim, al-Bayhaqee, Saheeh] - Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, and more
Re: tag attributes as bean properties
Borislav == Borislav Iordanov [EMAIL PROTECTED] writes:
Borislav Hi guys,
Borislav This is more a question for tomcat developers I guess. I'm working with
Borislav Tomcat 4.1.18.
Borislav The JSP 1.2 specification states that a container should interpret tag
Borislav attributes as bean properties following the Java Beans specification.
Borislav Does Tomcat then rely on a BeanInfo associated with a bean to find out
Borislav about property setters and getters? It doesn't seem so since I defined a
Borislav BeanInfo class for a tag handler class and the
Borislav 'BeanInfo.getPropertyDescriptors' never gets called.
Borislav My goal is the following: I would like to allow a tag attribute which is
Borislav semantically a boolean to be set either through
Borislav (1) a string (true or false) or
Borislav (2) a run-time expression (e.g. '%= bar.getFoo() != null %') or
Borislav (3) an EL expression (e.g. ${not empty bla.foo})
Borislav The problem is that the EL expression gets converted at translation time
Borislav to a false boolean. Therefore, I would like to bypass the standard
String- primitive_type conversions performed by the JSP translator.
I don't read this list very often, so I don't know if you still need this
information.
I've had this exact problem. I had a base class tag with attributes of certain
types (not string), and I defined a subclass tag whose attribute values are
evaluated with the EL.
For instance, assume your attribute is named foo, as defined in your TLD. In
the base class, this is a boolean instance variable.
Along with my subclass, I have a BeanInfo class which maps the foo attribute
to a setter setFooExpr(). I have an instance variable named fooExpr in my
subclass, along with getter/setter getFooExpr() and setFooExpr().
In my doStartTag() method, I pass the value of getFooExpr() into the EL
evaluator and send the result to setFoo().
This will definitely deal with your cases (1) and (3), and I believe it
will handle (2), but I haven't tried that (I avoid scriptlets).
If you want to see numerous examples of this, I implemented this in the
Struts-EL contributed package in the Struts distribution.
--
===
David M. Karr ; Java/J2EE/XML/Unix/C++
[EMAIL PROTECTED] ; SCJP; SCWCD
-
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RE: Apache modules with Tomcat
Have you considered Tomcat filters instead? John -Original Message- From: Jordan Hayes [mailto:[EMAIL PROTECTED] Sent: Saturday, February 22, 2003 7:00 PM To: Tomcat Subject: Apache modules with Tomcat Is there a way to add modules to servlet processing? For instance, I'd like to add mod_headers to attach extra headers to the output of a servlet without changing the servlet itself. Can the filter functionality of Apache2 help me here? Thanks, /jordan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --- Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.454 / Virus Database: 253 - Release Date: 2/10/2003 --- Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.454 / Virus Database: 253 - Release Date: 2/10/2003 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
SERVLET-JSP ERROR
hi, when i try to run a JSP file for my application ,i am getting servlet jsp currently unavailable. i am using tomcat4.0 ,linux8.0... is it anything problem with jar files in lib directory.. pls help me at earliest... thank u ezhil.a
Re: Apache modules with Tomcat
Have you considered Tomcat filters instead? ... except that the modules I want to use are already written? Sure: it's software. I could just write something new. I take it the answer is 'no' then? :-) /jordan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Virtual Hosting with apache and tomcat
Hello Jens Am Samstag, 22. Februar 2003 23:26 schrieb Jens Skripczynski: Robert Einsle: Servlet-Contexts: aaa, bbb Webservers: http://www.aaa.de, http://www.bbb.de and i can only reach http://www.aaa.de/aaa and http://www.bbb.de/bbb the Servlet contexts. you can try to use Context path= docBase=ROOT debug=0/ as in the server.xml. That maps ROOT to / So i believe (!) with this you can access your Context in the root directory. I don't knew, but i think with this Method i can only use one servlet-context as root-Context. But i ned the ability to use different root-contexts with different virtual Hosts in apache. Ciao Jens Skripczynski Thanks \Robert Einsle - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Internationalization question
On Sat, 2003-02-22 at 17:45, THG wrote: with request.getParameter(test) you get the iso-8859-1 encoded utf-8 data (which is encoded with us_ascii) - an double encoded string. Ok, I think I'm beginning to get it. I did this in a JSP (with charset=UTF-8): String parameter = request.getParameter(test); byte[] ba = parameter.getBytes(ISO-8859-1); String result = new String(ba, UTF-8); out.println(pThis is the text you entered: ' + result + '); and it works perfectly. It seems that the browser is sending the bytes as UTF-8, but Java doesn't know that, so I tell it, the bytes are ISO-8859-1, which basically means raw 8-bit stuff (don't touch it), and turn it into a byte[], which actually contains bytes which are UTF-8. In other words, when I use getBytes(ISO-8859-1) I am actually tricking Java into treating the String as raw bytes, instead of a sequence of chars. Great. Now I want to send it back out, so I need to create a string. So, I create a new String from that byte[], telling it that the bytes in the byte[] are actually UTF-8 bytes. This creates a String which, like ALL native strings within Java, but UNLIKE the string returned by request.getParameter() in this case, is UTF-16 encoded. Then, I use out.println, which is smart enough to know what the content type and encoding of the page is, and therefore it knows how to convert a Java string (which is always UTF-16) into the correct sequence of bytes for the OutputStream, and of course that conversion depends on the charset. This means that if I have a database full of strings which are all UTF-8, I can load them into Java (making them UTF-16), and create a JSP with charset=Shift_JIS for example, and then out.println() will magically convert those UTF-16 strings to Shift_JIS as it is displaying them (assuming the strings contain only characters which can be represented in Shift_JIS)? If I'm right in this, then I understand how it is working, and I might want to write an addition to the Tomcat docs to explain this. It's a bit tricky, using ISO-8859-1 when I'm not actually using ISO-8859-1 as the encoding. Thanks! - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
complex load balancing setup advice
Hi, We have two applications , one an e-commcerce j2ee MVC application, the other a struts based highly featured message board. We have a national audience so we have colocated servers in NYC and San Jose. Here is the challenge. We want to load balance in each geographical location so that response times are good. and we want to failsafe such that if any server in each location goes down the others pick up the slack. Additionally if one location goes totally down, (San Jose falls into the ocean) the other picks up the traffic. We have been through the literature and have tried a few scenarios but are at the point where we would like to pay some $$$s to someone who really knows this stuff and can blueprint a solution for us. Any interested parties send some contact info and a brief summary that would make us want to work with you. Here is a little more info about us. running apache on Sun v100s and netra x1's (3-4 in each location) solaris 8 mysql with sun E220R and/or E240R for database backend. thanks GL - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
