Re: SSL 8443
Caldarale, Charles R wrote: From: Lalit Batra [mailto:[EMAIL PROTECTED] Subject: SSL 8443 Is there any way I can have to do without enetering 8443 port number. Change the port attribute of the SSL connector in your server.xml file. - Chuck And use port number 443. - Robert
Re: A web based e-mail client
Evgeny, Can't help you on the experience side. But asking the right question will help you get the right answers. You are looking for folks to share their experiences/opinions of java mail *servers*, right? - Robert Evgeny Gesin wrote: Robert, I wanted to hear what others recommend based on their experiences. I need opinions. Evgeny Gesin --- Robert F Hall [EMAIL PROTECTED] wrote: Evgeny, Google 'java mail server', I'm guessing yuou will find what you need. - Robert Evgeny Gesin wrote: Hi Litty Preeth. CraftMail looks like a standalone application. I need a web based client, like Yahoo/Hotmail, which runs on the server. I will access that web client using a regular web browser. Thanks! Evgeny Gesin --- Litty Preeth [EMAIL PROTECTED] wrote: Hi Evgeny Gesin There is a java mail client given by freebeans. The url is : http://www2s.biglobe.ne.jp/~dat/java/applications/CraftMail/index_en.html With regards, Litty Preeth --- Evgeny Gesin [EMAIL PROTECTED] wrote: I run QMail server and need a web based client written in Java. I will access that client from anywhere like Yahoo mail. There is a SquirrelMail/Courier-IMAP which use PHP, but I need a Java-based web client. Any pointers will be helpful Evgeny Gesin __ Yahoo! Mail Stay connected, organized, and protected. Take the tour: http://tour.mail.yahoo.com/mailtour.html - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: A web based e-mail client
Evgeny, Thanks for the clarification. I've written several java apps that run in Tomcat, with browser based front ends and never thought of them as java client apps... You may have already done this, but if not, I suggest you google 'java web mail'. -Robert Evgeny Gesin wrote: I need a Java web apps client, not server (I have a mail server), similar to Yahoo/Hotmail, running under Tomcat which allows to read/send e-mails when I'm out of office. I found a few Java web based front-ends, but I will be glad to hear what others recommend. So, its a Tomcat/Java relative too :) Evgeny Gesin --- Robert F Hall [EMAIL PROTECTED] wrote: Evgeny, Can't help you on the experience side. But asking the right question will help you get the right answers. You are looking for folks to share their experiences/opinions of java mail *servers*, right? - Robert Evgeny Gesin wrote: Robert, I wanted to hear what others recommend based on their experiences. I need opinions. Evgeny Gesin --- Robert F Hall [EMAIL PROTECTED] wrote: Evgeny, Google 'java mail server', I'm guessing yuou will find what you need. - Robert Evgeny Gesin wrote: Hi Litty Preeth. CraftMail looks like a standalone application. I need a web based client, like Yahoo/Hotmail, which runs on the server. I will access that web client using a regular web browser. Thanks! Evgeny Gesin --- Litty Preeth [EMAIL PROTECTED] wrote: Hi Evgeny Gesin There is a java mail client given by freebeans. The url is : http://www2s.biglobe.ne.jp/~dat/java/applications/CraftMail/index_en.html With regards, Litty Preeth --- Evgeny Gesin [EMAIL PROTECTED] wrote: I run QMail server and need a web based client written in Java. I will access that client from anywhere like Yahoo mail. There is a SquirrelMail/Courier-IMAP which use PHP, but I need a Java-based web client. Any pointers will be helpful Evgeny Gesin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: A web based e-mail client
Evgeny, Google 'java mail server', I'm guessing yuou will find what you need. - Robert Evgeny Gesin wrote: Hi Litty Preeth. CraftMail looks like a standalone application. I need a web based client, like Yahoo/Hotmail, which runs on the server. I will access that web client using a regular web browser. Thanks! Evgeny Gesin --- Litty Preeth [EMAIL PROTECTED] wrote: Hi Evgeny Gesin There is a java mail client given by freebeans. The url is : http://www2s.biglobe.ne.jp/~dat/java/applications/CraftMail/index_en.html With regards, Litty Preeth --- Evgeny Gesin [EMAIL PROTECTED] wrote: I run QMail server and need a web based client written in Java. I will access that client from anywhere like Yahoo mail. There is a SquirrelMail/Courier-IMAP which use PHP, but I need a Java-based web client. Any pointers will be helpful Evgeny Gesin
Re: Oracle function problem in using tomcat 5.5.9
Geraldine,
Is the same DB login being used in all cases? If not, then the problem
may be due to the
DB user not having execute privileges on the procedure in question.
Another possibility
is that the DB's are different and procedure actually does not exist.
- Robert
[EMAIL PROTECTED] wrote:
Hi,
I got an error message as below when I use an oracle function in a statement
in a java bean, but I use the same statement in a java servlet, it's ok.
The statement in the bean is:
public String[] getDetailAD(){
try{
Connection conn = null;
if (conn == null) {
conn = JDBCConnectionPool.getConnection(ORACLE_DATASOURCE);
}
if (conn == null) {
throw new Exception(Can't connect to Oracle);
}
Statement stmt = conn.createStatement();
String query = select ADV_MERCURY_DESC(club_mercury) from
ops$profai.faagent where no = 12345;
ResultSet rs = stmt.executeQuery(query);
while (rs.next()) {...
The function is:
(p_str IN STRING) RETURN VARCHAR2
--
IS
leftstr varchar2(1);
BEGIN
leftstr := substr (p_str ,1,1);
IF p_str IS NULL THEN
RETURN 'NONE';
ELSIF leftstr = ' ' THEN
RETURN 'NONE';
ELSIF leftstr = 'G' THEN
RETURN 'GOLD';
ELSIF leftstr = 'S' THEN
RETURN 'SILVER';
ELSIF leftstr = 'B' THEN
RETURN 'BLUE';
ELSIF leftstr = 'T' THEN
RETURN 'TLC';
ELSIF leftstr = 'R' THEN
RETURN 'RED';
ELSIF leftstr = 'N' THEN
RETURN 'NOW';
ELSIF leftstr = 'W' THEN
RETURN 'NOW GOLD';
ELSE
RETURN ('UNKNOWN:' || leftstr || '!');
END IF;
END ADV_MERCURY_DESC;
The statement and the function are always ok if I run them directly in
Oracle environment or use a servlet which is running under jdk2 and Apache
server 1.3, but get error when run the bean in Tomcat5.5.9, the oracle
driver is classes12.jar.
Could anyone give me a clue?
Thanks in advance.
Geraldine
Error message is here:
java.sql.SQLException: ORA-00904: ADV_MERCURY_DESC: invalid identifier
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:208)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:543)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1405)
at
oracle.jdbc.ttc7.TTC7Protocol.parseExecuteDescribe(TTC7Protocol.java:
643)
at
oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.jav
a:1674)
at
oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStateme
nt.java:1870)
at
oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:
538)
at
org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingSt
atement.java:162)
at oiintranet.MainADBean.getDetailAD(MainADBean.java:106)
at
org.apache.jsp.DetailAD_jsp._jspService(org.apache.jsp.DetailAD_jsp:6
3)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:322)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:2
91)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:856)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:744)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpo
int.java:527)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFol
lowerWorkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:684)
at java.lang.Thread.run(Unknown Source)
***
The information contained in this mail message is confidential and may also be
legally
Re: Apache2/Tomcat55/mod_jk and Sticky Sessions
Dave, Try a Google search for: Apache httpd sticky sessions. One result that looks particularly useful: http://raibledesigns.com/tomcat/ -Robert Dave Morrow wrote: Hi all. I am attempting to setup a loadbalanced set of Tomcat5.5 servers behind an Apache2 server using mod_jk. The application developers have told me that the app will require sticky sessions. I have it all configured and working with the exception of the sticky sessions. I think my workers.properties is correct so there must be something I am missing. For testing, I created a JSP in the ROOT application of each of the Tomcat servers which simply displays the server name and SessionID. The loadbalancing is working, but instead of maintaining a session, it's flip-flopping between servers and thus changing session ID's. My workers.properties contains (note the localhost is in the opposite place on the other server); worker.list= qatomcat1, qatomcat2, loadbalancer # worker.qatomcat1.port=8009 worker.qatomcat1.host=qahost1 worker.qatomcat1.type=ajp13 worker.qatomcat1.lbfactor=100 worker.qatomcat1.local=0 # worker.qatomcat2.port=8009 worker.qatomcat2.host=localhost worker.qatomcat2.type=ajp13 worker.qatomcat2.lbfactor=100 worker.qatomcat2.local=1 David A. Morrow Technical Systems Lead Autodata Solutions Company [EMAIL PROTECTED] http://www.autodata.net Tel: (519) 951-6079 Fax: (519) 451-6615 Poor planning on your part does not necessarily constitute an emergency on my part! This message has originated from Autodata Solutions. The attached material is the Confidential and Proprietary Information of Autodata Solutions. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please delete this message and notify the Autodata system administrator at [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Custom Realm development: can't locate javax.management package
Should be in ${TOMCAT_HOME}/bin/jmx.jar
[EMAIL PROTECTED] wrote:
I'll look again, but I didn't see a jmx.jar earlier
-- Original message --
From: Guy Katz [EMAIL PROTECTED]
its a jmx class.
probably in jmx.jar
-Original Message-
From: alebu [mailto:[EMAIL PROTECTED]
Sent: Monday, April 18, 2005 9:46 AM
To: tomcat-user@jakarta.apache.org
Subject: Custom Realm development: can't locate javax.management package
Hi, I was trying to develop my own Realm extending
org.apache.catalina.realm.RealmBase
but in Eclipse I got this error:
The type javax.management.MBeanRegistration cannot be resolved.
It is indirectly referenced from required .class files MyRealmBase.java.
I can't find jar file where this package is specified, but I not using
Tomcat sources, I just pointing
compiler to required jar files. And because this package is in javax
tree, then it should be somewhere in classpath I can't find it :(
-
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Re: [OT] Throughput and scalability
Ross, I recommend that you think along the lines of expandability. That is, a load balancer in front of tomcat(s) running on one or more servers. As demand increases you add more instances, then another server. There is also the nature of the communication with the external system to consider. It sounds like you should profile the app at a range of loads, identify bottlenecks, and design/specify accordingly. -Robert Larry Meadors wrote: I do not think that anyone can answer that but you. It is so application specific that any answers we give would be SWAGs at best. Larry On Wed, 23 Feb 2005 14:25:32 -0800, Ross Poppel [EMAIL PROTECTED] wrote: Hi Tomcat Users - We are implementing Tomcat (with Axis) for HTML translation to a proprietary format (as a pass-thru). This is for submission to an external system (its pretty simple data) and back again. We were wondering if anyone has any ideas how you would size a box (Solaris/HP-UX based) if you want to get a specific throughput (x number of messages per second). Is there any guidelines anyone can recommend? --- Ross Poppel - [EMAIL PROTECTED] Solutions Architect, PORTAL Software Cell: (609) 744-2050 EFax: (617) 344-2585 SMS: [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: Name jdbc is not bound in this Context error
U K,
It works as you said, but there are a couple of things I'll recommend:
First, you should move your Connection, ResultSet and Statement
declarations before
the try {} block and add a finally {} block where you check for null
values and close
the resources if not null.
Connection conn = null;
Statement stmt = null;
ResultSet res = null;
try {
..
}
catch {
}
finally {
if (stmt != null ) {
try {
stmnt.close();
}
catch (SQLException se) {
log.error(se.getMessage);
}
}
Second, you should use a connection pool. I don't have a Tomcat config
readily
available. But can follow up with one if you need it.
-Robert
U K Laxmi wrote:
I tried without GlobalNamingResources. No luck. When
googled, i found that if we include
GlobalNamingResource tag, then it will be available in
all web context.
After spending enough time on that, now i coded all
database related stuff in JSP in the way we do in
stand alone application. I mean -
Coding like this in jspo itself.
code --
%@ page contentType=text/html import=java.sql.*%
html
headtitlesimmPlan - simple material planning
system/title
script language=JavaScript
src=/js/default.js/script
%
String userid = request.getParameter(userid);
String passwd = request.getParameter(passwd);
System.out.println(Password: + passwd);
String pwd = , str = ;
int level = -1, ind = -1;
try {
Connection conn = null;
Class.forName(sun.jdbc.odbc.JdbcOdbcDriver);
conn=DriverManager.getConnection(jdbc:odbc:driver={Microsoft
Access Driver
(*.mdb)};DBQ=C:/tomcat/webapps/db1/db1.mdb);
Statement stmt =
conn.createStatement();
String query = SELECT * FROM user
where name = ' + userid + ';
ResultSet st =
stmt.executeQuery(query);
if (st.next()) {
pwd = st.getString(password);
level = st.getInt(level);
System.err.println(Query
result=+userid+/+pwd+/+level);
}
else {
ind = -2;
System.out.println(No user with name + userid
+ available in the database);
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
} catch (Exception e) {
e.printStackTrace();
}
if(pwd.equals(passwd)) {
ind = level;
}
// else ind = -1;
System.out.println(Ind - + ind);
%
script language=JavaScript type=text/JavaScript
var ind = %= ind %
function loadHtml() {
//alert(in loadHtml());
if(ind == -2) {
alert(Not a valid user);
location.href = login.jsp;
return;
}
if (ind == -1) {
alert(Incorrect password);
location.href = login.jsp;
return;
}
else {
//alert(Correct password);
location.href = Second_Page.html;
return;
}
}
/script
/head
body onload=javascript:loadHtml()
!-- User Name : %= userid %br
Password : %= passwd % --
/body
/html
--- code ends here ---
It works. But is it the right way to do? Pls advice.
--- Antony Paul [EMAIL PROTECTED] wrote:
By default server.xml contains have a
GlobalNamingResources. You
have to add your resources in there.
rgds
Antony Paul
On Mon, 21 Feb 2005 19:56:23 -0800 (PST), U K Laxmi
[EMAIL PROTECTED] wrote:
As just moved the GlobalNamingResources inside the
main server in my server.xml residing in
TOMCAT_HOME/conf directory. When i restart tomcat
5.5.7 it's throwing up following exception.
INFO: Starting Servlet Engine: Apache Tomcat/5.5.7
Feb 22, 2005 11:51:46 AM
org.apache.catalina.realm.UserDatabaseRealm start
SEVERE: Exception looking up UserDatabase under
key
UserDatabase
javax.naming.NameNotFoundException: Name
UserDatabase
is not bound in this Conte
xt
at
org.apache.naming.NamingContext.lookup(NamingContext.java:769)
at
org.apache.naming.NamingContext.lookup(NamingContext.java:152)
at
org.apache.catalina.realm.UserDatabaseRealm.start(UserDatabaseRealm.j
ava:222)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1003)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:440
)
at
org.apache.catalina.core.StandardService.start(StandardService.java:4
50)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:683
)
at
org.apache.catalina.startup.Catalina.start(Catalina.java:537)
at
Re: JK, Session Replication/Clustering, SSL and failover in Tomcat 5
Dutch? Punit Duggal wrote: What language is this ?? From: [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] To: tomcat-user@jakarta.apache.org Subject: Re: Re: JK, Session Replication/Clustering, SSL and failover in Tomcat 5 Date: 26 Jan 2005 23:13:47 - Geachte relatie, Het door u gebruikte e-mailadres is niet meer actief. U kunt uw e-mailbericht sturen naar [EMAIL PROTECTED] of dit bericht beantwoorden. Bedankt voor uw medewerking, Met vriendelijke groet, ATP Hypotheken Het Spoor 40 3994 AK Houten Tel. 030 750 25 33 Fax. 030 750 25 88 [EMAIL PROTECTED] -- DIT IS EEN AUTOMATISCH GEGENEREERD E-MAILBERICHT -- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] _ Express yourself instantly with MSN Messenger! Download today - it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ - 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: JK, Session Replication/Clustering, SSL and failover in Tomcat 5
Try killing one of the Tomcat JVM's at the OS level. -Robert Richard Mixon (qwest) wrote: Filip, Thanks so much for some reason taking the Manager statement completely out of the context worked. I can now see session replication occurring, which then identified some objects that were not serializable. I have fixed these and can see the session replicating correctly in the log messages. I quickly realized that I could not just run catalina stop as this caused the session to be deleted on both the tomcat instance that was stopping and on the remaining Tomcat instance - hence the reason I was always prompted to re-login in. So how do I trigger the maintenance failover? If I use the Admin console to delete the port 8009 connector (first Tomcat instance), this does not prevent JK from continuing to route traffic to this instance. I also tried using ant stop from the tomcat-deployer, but this results in a HTTP Status 503 - This application is not currently available message. I feel like I'm very close, but not quite there. Thank you - Richard Filip Hanik - Dev wrote: you said you enabled it in your context.xml file, if so remove it snip - this was getting really long... - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: I don't know what's wrong.
Hi Warron, We are using JBoss 3.2.5 w/embedded Tomcat 5.0.26 and have Apache 1.3.27 in front of JBoss/Tomcat A brief overview: [Web browser]---[Apache port 80]---[mod_jk port 8009]---[JBoss/Tomcat listener port 8009][Database + other resources] If you could forward your Apache config files and your JBoss server.xml (maybe best done off-list, Yoav?) I'll take a look at them. -Robert Warron French wrote: So, how does JBoss fit into the whole situation? Merry Christmas Happy New Year! Warron French Sr. Network Engineer Xtria, LLC 8045 Leesburg Pike #400 Vienna, VA 22182 Desk: 703-821-6110 Main: 703-821-6000 Fax: 703-827-0374 -Original Message- From: Phillip Qin [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 07, 2004 4:34 PM To: 'Tomcat Users List' Subject: RE: I don't know what's wrong. Mod_jk is the bridge between Apache and Tomcat. Consult jk 1.x documentation on how to configure it. Mysqld is the MySQL daemon on linux. Many websites use MySQL along with Apache and PHP. -Original Message- From: Warron French [mailto:[EMAIL PROTECTED] Sent: December 7, 2004 4:22 PM To: User Tomcat (E-mail) Subject: I don't know what's wrong. We have a JBoss application? That uses .jsp files to interact with a supposedly searchable database. Can someone explain to me the concepts behind Tomcat, mod_jk, JBoss, and Apache, and if maybe I am missing something like the database. I am running mysqld, but as far as I know... the mysqld isn't supporting ANY websites yet. Here is my url I am trying to get to work. I really don't know enough to figure out what is missing and what I need to be done. http://www.nrcitcw.org/nrcitcw/SearchCategory.jsp I can send snippets of my Virtual Host config from my apache server if anyone is willing to help me. please. This is driving me nuts. It was implemented before I knew it existed. Merry Christmas Happy New Year! Warron French Sr. Network Engineer Xtria, LLC 8045 Leesburg Pike #400 Vienna, VA 22182 Desk: 703-821-6110 Main: 703-821-6000 Fax: 703-827-0374 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] !DSPAM:41b61f0721071269171754! - 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: jboss with tomcat
Howdy, Or a tool like oXygen/ (stand-alone or Eclipse plug-in), http://www.oxygenxml.com BTW, I think the OP meant JBoss 3.2.5. -Robert Shapira, Yoav wrote: Hi, Hmm, not trivial. Start by validating your web.xml using a tool like XMLSpy. Yoav Shapira http://www.yoavshapira.com -Original Message- From: B Wiley [mailto:[EMAIL PROTECTED] Sent: Tuesday, November 02, 2004 5:34 PM To: [EMAIL PROTECTED] Subject: jboss with tomcat Hello, I've got tomcat embedded into jboss 2.2.5 . I get some kind of mapping error when I go to http://localhost:8080/web-console/ and the browser displays a 500 error. What is causing this and where can I look to fix it? [INFO,EmbeddedCatalinaServiceSX] StandardHost[localhost]: MAPPING configuration error for request URI [ERROR,EmbeddedCatalinaServiceSX] HttpProcessor[8080][4] process.invoke java.lang.NullPointerException
Re: Forum instead of mailist!!
Ben Souther wrote: -1 This comes up every so often and goes nowhere. The auto replies are a minor annoyance but easy enough to delete. Or you can set up (depending on your email client) a Junk filter to handle them. BTW, is -1 a thread weighting ? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat Question - HELP
[EMAIL PROTECTED] wrote: We actually replicated the issue and killing a tomcat PID, sometimes does not release the port it is listening to/or using. I killed the tomcat PID, clear port 8080 and make sure nothing else is using it or holding it and restarted tomcat with my rc2.d script that calls catalina.sh and it solved my issue. Daniel, Doesn't your Tomcat bin directory include a shutdown.sh script? Why not use that instead of killing the PID? I've never had an issue with port contention when using shutdown.sh. Robert - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: headless java setting
No need to add X libs, just add -Djava.awt.headless=true to your JAVA_OPTS Didier McGillis wrote: I have a small problem. My predicesor setup his code to work with X-Windows. Well the code will not work without an x11 server running. However I have all my machines setup as a typical server and do not have xwindows installed. I saw where you could grab a few x11 libs and then run somewhere in the catalina.sh file a flag that would flip on the headless setting in teh JVM. I have tried that several times and not even a hint that it works. Any thoughts. Any experience. _ Take charge with a pop-up guard built on patented Microsoft® SmartScreen Technology. http://join.msn.com/?pgmarket=en-capage=byoa/premxAPID=1994DI=1034SU=http://hotmail.com/encaHL=Market_MSNIS_Taglines Start enjoying all the benefits of MSN® Premium right now and get the first two months FREE*. - 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: another DBCP problem with tomcat 4.1.30, tomcat-5.0.27 and Oracle ApplicationServer-9.0.4
Howdy, Apparently, the Connections returned from the DriverManager and the DBCP are not equivalent ;-). How is the DBCP getting Connections to Oracle? /Robert Edson Alves Pereira wrote: Hello dudes, i´m trying to store a value to a CLOB in my databse, everything is fine with a simple Connection created with DriverManager, but when i use DBCP from one of these servlet-engines i got the same error: ava.sql.SQLException: invalid arguments in call 04/08/27 11:56:44 at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:189) 04/08/27 11:56:44 at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:231) 04/08/27 11:56:44 atoracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:294) 04/08/27 11:56:44 at oracle.sql.CLOB.createTemporary(CLOB.java:527) 04/08/27 11:56:44 at appi.util.JUtils.getClob(JUtils.java:166) Here´s my code: //create a new temporary CLOB tempClob = CLOB.createTemporary( servlet_.getDbCon( ).getCon( ), true, CLOB.DURATION_SESSION ); How can i fix it? Regards, Edson - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: ENC: another DBCP problem with tomcat 4.1.30, tomcat-5.0.27 and O racleApplicationServer-9.0.4
Hola, Just to clarify, is it true that you can store a CLOB if the java.sql.Connection is obtained directly from Oracle's DriverManager? But when you use a java.sql.Connection from DBCP, everything else being the same, you can not store a CLOB? If that's the situation, then there has to be some difference between the Connections. I'm not familiar with Tomcat's DBCP, we use JBoss, so I don't know what goes into configuring TC's DBCP. Is should be possible to configure DBCP to user the DriverManager in Oracle's ojdbc14.jar. /Robert Edson Alves Pereira wrote: Hello again, servlet_.getDbCon( ).getCon( ) returns just a java.sql.Connection, with every DBCP i setup properly cause the connection works fine and CLOB is a oracle.sql.CLOB from oracle´s ojdbc14.jar. I tried once to store CLOBs in Oracle with jdbc standard and it didn´t workout, i just followed the Oracle´s recomendations, again this error only happens with DBCP. -Mensagem original- De: Edson Alves Pereira Enviada em: sexta-feira, 27 de agosto de 2004 14:44 Para: Tomcat-User List (E-mail) Assunto: another DBCP problem with tomcat 4.1.30, tomcat-5.0.27 and OracleApplicationServer-9.0.4 Hello dudes, i´m trying to store a value to a CLOB in my databse, everything is fine with a simple Connection created with DriverManager, but when i use DBCP from one of these servlet-engines i got the same error: ava.sql.SQLException: invalid arguments in call 04/08/27 11:56:44 at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:189) 04/08/27 11:56:44 at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:231) 04/08/27 11:56:44 atoracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:294) 04/08/27 11:56:44 at oracle.sql.CLOB.createTemporary(CLOB.java:527) 04/08/27 11:56:44 at appi.util.JUtils.getClob(JUtils.java:166) Here´s my code: //create a new temporary CLOB tempClob = CLOB.createTemporary( servlet_.getDbCon( ).getCon( ), true, CLOB.DURATION_SESSION ); How can i fix it? Regards, Edson
Re: Errors Page Personalize
Howdy, Your question is pretty vague, but here's something that might be of use. You can add error-page/ elements to your web.xml. For example, to display a custom page for a 400 error code: error-page error-code400/error-code location/error400.jsp/location /error-page Robert Alessandra Santos wrote: How to show personalize pages jsp for errors generate tomcat errors? Thanks Alessandra Santos Fortaleza-CE-Brazil - 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: Access JBoss from Tomcat
Howdy, You could access your JBoss hosted EJBs as web services. It's been awhile since I did it, but as I recall it was pretty straight forward to present an EJB as a web service using JBoss/Axis. You won't need to secure your web services since the host is on your internal network and can be prottected from external access. You'll need WSDL definitions and then can use org.apache.axis.wsdl.WSDL2Java to generate Java client code. JBoss provides some assistance for presenting an EJB as a web service, see org.jboss.net.axis.server.EJBProvider. Direct access to the EJBs would also be possible, with the client code residing in your perimeter Tomcat server. HTH, Robert Darryl L. Pierce wrote: I have a Tomcat server running on the perimeter of my network. I am trying to add some EJBs to the architecture to handle some authentication tasks for users. I need this work to be done within the network, so don't want to put JBoss on the perimeter. I want to access my JBoss server from my Tomcat server. How do I configure Tomcat to talk to JBoss? All links I find online talk about JBoss with Tomcat within it, and I've not found any information on configuring a standalone Tomcat to talk to JBoss. My Tomcat server is 4.1.30 and my JBoss server is 3.2.5. Any help is appreciated. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Access JBoss from Tomcat
What, you don't like web services ;-) Robert Filip Hanik (lists) wrote: just access the EJBs the same way its been done since the spec started. Lookup the EJB through JNDI, then invoke its method. Filip -Original Message- From: Robert F. Hall [mailto:[EMAIL PROTECTED] Sent: Wednesday, August 25, 2004 5:50 PM To: Tomcat Users List Subject: Re: Access JBoss from Tomcat Howdy, You could access your JBoss hosted EJBs as web services. It's been awhile since I did it, but as I recall it was pretty straight forward to present an EJB as a web service using JBoss/Axis. You won't need to secure your web services since the host is on your internal network and can be prottected from external access. You'll need WSDL definitions and then can use org.apache.axis.wsdl.WSDL2Java to generate Java client code. JBoss provides some assistance for presenting an EJB as a web service, see org.jboss.net.axis.server.EJBProvider. Direct access to the EJBs would also be possible, with the client code residing in your perimeter Tomcat server. HTH, Robert Darryl L. Pierce wrote: I have a Tomcat server running on the perimeter of my network. I am trying to add some EJBs to the architecture to handle some authentication tasks for users. I need this work to be done within the network, so don't want to put JBoss on the perimeter. I want to access my JBoss server from my Tomcat server. How do I configure Tomcat to talk to JBoss? All links I find online talk about JBoss with Tomcat within it, and I've not found any information on configuring a standalone Tomcat to talk to JBoss. My Tomcat server is 4.1.30 and my JBoss server is 3.2.5. Any help is appreciated. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.740 / Virus Database: 494 - Release Date: 8/16/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.740 / Virus Database: 494 - Release Date: 8/16/2004 - 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: ClassNotFoundException: OracleDriver
Howdy, You need ojdbc14.jar in your CLASSPATH. -Robert Java Techie wrote: Hi, in my struts-config: im using data-sources data-source type=org.apache.commons.dbcp.BasicDataSource key=UserDB set-property property=driverClassName value=oracle.jdbc.driver.OracleDriver/ set-property property=url value=jdbc:oracle:thin:@myPC:1521:newDB/ set-property property=username value=user1/ set-property property=password value=pass1/ /data-source /data-sources -- The following error occurs: 27:57[ERROR] 27:57org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'oracle.jdbc.driver.OracleDriver', cause: java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa der.java:1340) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa der.java:1189) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:140) -- I have added the zip file(D:\Oracle\Ora8i\jdbc\lib\classes102.zip) to the classpath; what else do i need to give. Thanks. __ Do you Yahoo!? Yahoo! Mail - 50x more storage than other providers! http://promotions.yahoo.com/new_mail - 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: installing tomcat 4.1.27 on linux
Howdy, Tomcat is written in Java and is OS independent, you don't need a linux specific install. We have the same Tomcat install running on Solaris, Linux, and Windoze. -Robert Stephen Charles Huey wrote: We're moving Tomcat over to a Linux box, and we're under pressure to get it done as quickly as possible and put it into production right away even though none of us knows Linux all that well beyond me using Solaris back in my school days! So, I'm looking for Tomcat 4.1.27 for Linux, and I don't see that available here: http://jakarta.apache.org/site/binindex.cgi However, in searching around, I found this, and I'm wondering if this is the right thing for me to be using: http://rpmfind.net/linux/RPM/suse/9.0/i386/suse/i586/jakarta-tomcat-4.1.27-63.i586.html I've heard about RPM only in the last day or so when looking around for utilities for Linux. I'll probably want the RPM version for Tomcat, right? This page talks about RPM: http://www.rpm.org/ But I'm wondering if it comes with Red Hat 8 (I can't tell yet--my boss is installing Red Hat across town and I'm just doing my homework so I'm ready to roll when he's done with all the things he has to do on his end). Thanks, Stephen - 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: Container managed security
Have you tried adding http-method/ elements to web-resource-collection ? web-resource-collection http-methodHEAD/http-method http-methodGET/http-method http-methodPOST/http-method http-methodPUT/http-method http-methodDELETE/http-method /web-resource-collection Steve Luzynski wrote: On Jul 9, 2004, at 8:11 AM, QM wrote: On Thu, Jul 08, 2004 at 11:19:39PM -0500, Steve Luzynski wrote: : Using Tomcat 5.0.25 on Mac OS X (10.3.4 specifically). Trying to : implement container managed security. : : [snip: deployment descriptor] : : When I try to hit a url like : http://localhost:9006/IPBoss/add/add_network.html, which as near as I : can tell should trigger authentication, I just get the page I'm asking : for - no login. Humor me -- is there an Apache server in front of Tomcat that's intercepting the .html? Nope, Tomcat is running an http connector directly on port 9006. (I hate to ask this) but did you restart Tomcat after making the web.xml changes? Repeatedly. :) Otherwise, web.xml looks spec-compliant as far as I can tell. I thought so. Any other ideas? I'm stumped. Thanks much, Steve - 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: Tomcat works for localhost, but won't work for the local intranet..
Ivan, do you have a firewall in place on the linux box? If so, is port 80 open? -Robert Ivan Jouikov wrote: I am running tomcat 5.0.27 on Linux RH 9.0, and I have a little problem. I am using jsvc to launch Tomcat standalone as Tomcat5 user. Everything seems to work fine, when I connect to localhost or 127.0.0.1 from that same computer. However, if I try to connect to Tomcat from my local intranet, I get Page Cannot be Displayed after a long wait. If I try to ping that computer, everything works just fine: ping 192.168.0.33.. If I try to run MySQL client for that computer, everything works fine But if I type in my browser http://192.168.0.33/ I get page not found. Oh yeah, my Tomcat is set up to work standalone, and the only connector that it has is an HTTP connector on port 80. Does anyone know what could be wrong? Best Regards, Ivan V. Jouikov (206) 228-6670 http://www.ablogic.net/ --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.716 / Virus Database: 472 - Release Date: 05.07.2004
Re: Tomcat works for localhost, but won't work for the local intranet..
Have you run lokkit to see how it displays this info? # Firewall configuration written by lokkit # Manual customization of this file is not recommended. Ivan Jouikov wrote: Here are the contents of my /etc/sysconfig/iptables: # Firewall configuration written by lokkit # Manual customization of this file is not recommended. # Note: ifup-post will punch the current nameservers through the # firewall; such entries will *not* be listed here. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :RH-Lokkit-0-50-INPUT - [0:0] -A INPUT -j RH-Lokkit-0-50-INPUT -A FORWARD -j RH-Lokkit-0-50-INPUT -A RH-Lokkit-0-50-INPUT -i lo -j ACCEPT -A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 0:1023 --syn -j REJECT -A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 2049 --syn -j REJECT -A RH-Lokkit-0-50-INPUT -p udp -m udp --dport 0:1023 -j REJECT -A RH-Lokkit-0-50-INPUT -p udp -m udp --dport 2049 -j REJECT -A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 6000:6009 --syn -j REJECT -A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 7100 --syn -j REJECT COMMIT I am not that good with iptables, but it seems to me that the line -A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 0:1023 --syn -j REJECT Blocks all ports from 0 to 1023 for TCP/IP... I don't recall putting that there, but is that what it really does? And if it is, how can I make it so that port 80 is available? -Original Message- From: Dennis Dai [mailto:[EMAIL PROTECTED] Sent: Friday, July 09, 2004 5:24 PM To: Tomcat Users List Subject: Re: Tomcat works for localhost, but won't work for the local intranet.. RedHat's defualt firewall rules? On 7/9/2004 5:18 PM, Ivan Jouikov wrote: I am running tomcat 5.0.27 on Linux RH 9.0, and I have a little problem. I am using jsvc to launch Tomcat standalone as Tomcat5 user. Everything seems to work fine, when I connect to localhost or 127.0.0.1 from that same computer. However, if I try to connect to Tomcat from my local intranet, I get Page Cannot be Displayed after a long wait. If I try to ping that computer, everything works just fine: ping 192.168.0.33.. If I try to run MySQL client for that computer, everything works fine But if I type in my browser http://192.168.0.33/ I get page not found. Oh yeah, my Tomcat is set up to work standalone, and the only connector that it has is an HTTP connector on port 80. Does anyone know what could be wrong? Best Regards, Ivan V. Jouikov (206) 228-6670 http://www.ablogic.net/ --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.716 / Virus Database: 472 - Release Date: 05.07.2004 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.716 / Virus Database: 472 - Release Date: 05.07.2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.716 / Virus Database: 472 - Release Date: 05.07.2004 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Limit time for Database connection
Elisabeth, Nobody has responded to your question (that I've seen), so I'll take a shot. This sounds like a network issue, and network connection failures have to time out before they fail. Using a timed separate thread to obtain the connections for the pool occurs to me; if the connection thread doesn't return in a certain amount of time the parent thread could throw an Exception. Has anybody tired something along these lines? Is this suggestion way off base? Regards, Robert Bachler, Elisabeth (Elisabeth) wrote: Hello, I defined a database connection that uses a pool connection. Everything is working well. Now I had a routing problem that prevented any database connection (with a SQPNestedException fired). The exception fired after a long time is there a way of setting the connection limit, so it does not take so long before firing the exception? Thanks Elisabeth - 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: Limit time for Database connection
Could be, anyone know for sure? Eric Noel wrote: I thought it would be just as simple as setting the parameter in the DBCP??? parameter namemaxWait/name value1/value /parameter - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] On 7/9/2004 8:11 AM, Robert F. Hall wrote: Elisabeth, Nobody has responded to your question (that I've seen), so I'll take a shot. This sounds like a network issue, and network connection failures have to time out before they fail. Using a timed separate thread to obtain the connections for the pool occurs to me; if the connection thread doesn't return in a certain amount of time the parent thread could throw an Exception. Has anybody tired something along these lines? Is this suggestion way off base? Regards, Robert Bachler, Elisabeth (Elisabeth) wrote: Hello, I defined a database connection that uses a pool connection. Everything is working well. Now I had a routing problem that prevented any database connection (with a SQPNestedException fired). The exception fired after a long time is there a way of setting the connection limit, so it does not take so long before firing the exception? Thanks Elisabeth - 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: how to check if a String is empty?
Howdy,
Instead of comparing to a zero length string, test.trim().equala(),
try test.trim().length() == 0
/Robert
Carl Olivier wrote:
There is a trim() funtion in java.lang.String
?
-Original Message-
From: Marten Lehmann [mailto:[EMAIL PROTECTED]
Sent: 24 June 2004 06:20 PM
To: 'Tomcat Users List'
Subject: how to check if a String is empty?
Hello,
maybe this is not the perfect group for my question, but as my problem
appears at the development of JSPs and tomcat is concerned with that, I
hope you can answer it.
I often see the condition
String test = req.getParameter(test);
if (test == null) {
/* string is empty */
} else {
/* string contains something */
}
But if test contains just blanks and other whitespaces, it's not null,
but doesn't contain usable data anyhow. How can I check if a string
contains whitespaces only? I though of something like
if (test == null || test.trim().equals()) {
}
but there's no trim()-function, right? How do you solve this problem?
With whitespaces I mean blanks, tabs and newlines.
Regards
Marten
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Re: how to check if a String is empty?
Howdy,
if (test == null || test.trim().length() == 0 ) { } is simpler.
/Robert
Frank Zammetti wrote:
I've always done
if (test == null || test.trim().equalsIgnoreCase()) { }
(I'm anal about always using equalsIgnoreCase unless I know for sure
that case sensitivity is required). No need to do anything more
complex than that in my experience. Always do the simplest thing that
will work.
Frank
From: Robert Bateman [EMAIL PROTECTED]
Reply-To: Tomcat Users List [EMAIL PROTECTED]
To: Tomcat Users List [EMAIL PROTECTED]
Subject: Re: how to check if a String is empty?
Date: Fri, 18 Jun 2004 12:58:30 -0400
Wouldn't test.trim().length() be a better test? length() after trm
would
tell you if non white-space was left.
Bob
On Thursday 24 June 2004 12:30 pm, Peter Guyatt wrote:
Hi There,
You could do the check test.length() 0
Pete
-Original Message-
From: Carl Olivier [mailto:[EMAIL PROTECTED]
Sent: 24 June 2004 17:18
To: 'Tomcat Users List'
Subject: RE: how to check if a String is empty?
There is a trim() funtion in java.lang.String
?
-Original Message-
From: Marten Lehmann [mailto:[EMAIL PROTECTED]
Sent: 24 June 2004 06:20 PM
To: 'Tomcat Users List'
Subject: how to check if a String is empty?
Hello,
maybe this is not the perfect group for my question, but as my problem
appears at the development of JSPs and tomcat is concerned with
that, I
hope you can answer it.
I often see the condition
String test = req.getParameter(test);
if (test == null) {
/* string is empty */
} else {
/* string contains something */
}
But if test contains just blanks and other whitespaces, it's not null,
but doesn't contain usable data anyhow. How can I check if a string
contains whitespaces only? I though of something like
if (test == null || test.trim().equals()) {
}
but there's no trim()-function, right? How do you solve this problem?
With whitespaces I mean blanks, tabs and newlines.
Regards
Marten
-
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Re: Design question ..
Mufaddal, You might want to add a wait list. A wait list would allow someone to enroll in a course should a seat become available. The time allowed for a wait list response should be greater than that allowed for the shopping cart timeout. -Robert Mufaddal Khumri wrote: Yes, I could not said it better. I am not using clusters, but I certainly do want to stay away from the singleton and synchronization approach. It does have to be done at the database or with an extra table called Enrollment_Temp or something. Basically, when a user adds the course to his cart, an entry would be made in the Enrollment_Temp table and the current timestamp would be written to one column in this table. The current number of enrollments would thus be the sum of such entries in the Enrollment_temp and Enrollment table. If the user completes his transaction this entry from the enrollment_temp table can be moved to the enrollment table. This raises the question that there would be certain users who would not complete their transaction. Such users would cause entries in the Enrollment_temp table. We can have a timeout on the life of such entries in the enrollment_temp table. Have a thread clean the Enrollment_temp table if a condition like now timestamp stored + 30 minutes. If a user has a course in his or her shopping cart and does not complete his transaction, and if this was the last seat. For the next 30 minutes from the time he adds that course to his shopping cart, it wont be available to anybody. Q 1. Is this a good approach and is this judicious enough for users to use? Q 2. Can any improvements made to this approach? On Jun 21, 2004, at 4:07 PM, Frank Zammetti wrote: If your thinking in terms of singletons and synchronized blocks, it seems like you are thinking along the lines of doing this all in-memory. You CAN do that, but it's generally not a good idea. First, I don't know if your dealing with a clustered environment, but if you are you'll find that you have synchronization issues to deal with. Second, the obvious: if power goes out, everything is lost. If your dealing with a database, there's at least the possibility of recovering things. Third, any time you introduce a synchronized block in a J2EE-based application you have to ask yourself if your design isn't flawed because you are supposed to let the container handle all threading issues and your code should always be thread-safe. I myself have broken this rule on occassion, and I believe it to be valid to do sometimes, but you need to be sure it's truly the right anwer. Assuming you decide it is, realize that any synchronized block of code means your introducing a bottleneck to the application. You may decide it's insignificant, but you are essentially serializing all requests that go through that critical section, so you need to really make sure it's the right thing to do. In a recent app, I had a critical section during logon. This is very different than something that's a transaction within the app that might happen a number of times for a given user since the logon shouldn't be happening very often and you probably won't get too many users doing it concurrently, so it's not a big issue as compared to something that might be happening a lot for many different users. This really strikes me as something that should be done in a database, whether your letting the database handle the concurrance issues or you do so in your code yourself, but either way, that's really the way I'd be looking. Frank From: Mufaddal Khumri [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Subject: Re: Design question .. Date: Mon, 21 Jun 2004 14:34:51 -0700 Hi, Yes , first come first is something that I prefer too. But I will need a singleton java object with a synchronized method to do the transaction. The transaction would involve 1. Check data 2. Register 3. commit data to database. After the method completes i can send them a confirmation. The downside to this approach is that if lots of users are registering for courses online , they might experience a delay. On Jun 21, 2004, at 12:47 PM, Peter Lin wrote: There's a couple of different ways to handle this. 1. do not do it in real time. this is the easiest solution, but it means a human has to be the one who figures who gets what class. 2. use JMS to update each user's session and make it so that once the class has no more entries, no one else can add it to their cart. Say user 1 submits before user 2. if user 1 registers before 2, a message is sent to the java bean in memory to update the cart 3. process the orders on a first come first serve basis, but do not gaurantee the person is signed up for it. In the response email state, you will get a confirmation of successful regisration. This is usually the easiest way to assuming you send confirmation in reasonable amount of time. This implies the transaction are
Re: Denial Service Attack Prevention apache-tomcat modjk2
Howdy, And you can disable the submit button up fron if the user has JavaScript disabled, displaying a message to indicate that your site requires JavaScript. Then there is also the SynchronizerToken which your app could use to recognize and ignore duplicate requests. Robert UC Berkeley Shapira, Yoav wrote: Hi, You can use JavaScript to disable form elements, thereby graying them out and preventing the user from clicking again. Yoav Shapira Millennium Research Informatics -Original Message- From: Steve [mailto:[EMAIL PROTECTED] Sent: Thursday, June 10, 2004 10:52 AM To: Tomcat Users List Subject: Denial Service Attack Prevention apache-tomcat modjk2 Looking for a solution to prevent a user from click multiply times on a function in which the application is still performing from the first click. The user thinkgs the app is not responding where in fact it is, then causing the app to take a dump from multiply request. Using cisco css LB into -- Apache, mod_jk2 into tomcat 4.1.29 any tips or pointers greatly appr -s - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Use of SNMP to monitor Tomcat
Try Googling Java SNMP open source. Which returned, among other hits: http://netsnmpj.sourceforge.net/ http://edge.mcs.drexel.edu/GICL/people/sevy/snmp/snmp_package.html Robert Hut Carspecken wrote: Good Morning Everyone, I need to incorporate Tomcat as the presentation layer of a larger system and in doing so, I want to monitor it using SNMP. I understand that Tomcat can incorporate JMX to monitor some of its functions; however, my project calls for the use of SNMP. Has anyone monitored Tomcat with SNMP or have any knowlege how to do so? Thanks! Hut - 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: Conversion of String value to Double...
Not the right forum for this question, but here you go: String s = 0.1234; double d = Double.valueOf(s).doubleValue(); Robert soh_mah wrote: Hi all I have a basic problems in JSP. How can I convert a String value into double, Like String a=0.2345; double b=0; I need to assign the value of variable a into varuble b, How can I do that. Thanks in advance for ur help!! = Regards Sohail Mahmood (416) 636-2553 __ Do you Yahoo!? Yahoo! Domains Claim yours for only $14.70/year http://smallbusiness.promotions.yahoo.com/offer - 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]
