Re: How to start a web app?
Right. So should we improve the documentation or improve all the readers of the documentation? Let's see ... Documentation, or all the readers of the those docs ... Improve the docs, or all the readers of the docs ... Hmmm ... What could the answer be? Boy! That's a tough one! On Friday 09 July 2004 08:19 am, Mike Curwen wrote: Wouldn't it be easier to assume (in all things, not just tomcat docs) that unless 'recursion' is specifically mentioned, that a given process is *not* recursive? http://jakarta.apache.org/tomcat/tomcat-4.1-doc/config/host.html#Automat ic%20Application%20Deployment Where in the 3rd bullet do you get the idea that tomcat would search recursively through the directory specified in 'appBase' ? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, July 09, 2004 1:41 AM To: [EMAIL PROTECTED] Subject: RE: How to start a web app? -Original Message- From: QM Long story short: Tomcat does not search the webapps directory recursively for webapps; it loads contexts that are immediate children of the webapps directory. Essential information. I do wish someone would make that explicit in the tomcat documentation. regards DaveP. ** snip here ** -- - 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 start a web app?
On Friday 09 July 2004 09:15 am, Mike Curwen wrote: The point I was attempting to make is that there is nothing wrong with the docs, Yes, I know. And the point that I am trying to make is that several readers of the documentation disagree with you on this point. And that is, in my opinion, sufficient reason to conclude that there _is_, or at least may be, something wrong with the docs. It's really pointless to argue that the docs are semantically correct. It doesn't matter. What matters is whether or not they helped the readers. That's all that matters. If they did then they may be semantically gibberish and yet they are good. If they did not then they are wrong, regardless of semantics. As an aside. The place to fix this problem with the docs, in my opinion, is in the error messages. If the error messages told the user exactly what mistake it made then the problem with the docs would be irrelevant. So, instead of Cannot access XXX it should say, I found a subdirectory of webapps of the correct name but it doesn't contain a WEB-INF directory so I cannot proceed. Or, I found a subdir and a WEB-INF dir and a web.xml there but it doesn't have XXX in the YYY place. Then no one would care about the semantics of the other documentation -- it would be redundantly obscure. -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
How to start a web app?
I installed a new, extremely simple application in $CATALINA_HOME/webapps/springapps/index.html. When I attempt to view this with http://localhost:8080/springapps/index.html I get Error: 404. The requested resource (/springapps/index.html) is not available. So I'm reading and it says that I have to start the application by going into the Tomcat Manager. So I fix the $CATALINA_HOME/conf/tomcat-users.xml file so that I have both admin and manager roles. Then I go to the Tomcat homepage localhost:8080. I can log into the Administration page no problem. But when I try to get to the Manager it says, Access to the specified resource (Access to the requested resource has been denied) has been forbidden. I'm stumped. Don't know where to go from here. Seems like this shouldn't be this difficult. Any suggestions? -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to start a web app?
Mike: Thanks for the response. This application is slightly different but has the identical problem. Yes I have a web.xml. The directory structure for the app looks like this: === /opt/tomcat/webapps/springapps/: niagra2 /opt/tomcat/webapps/springapps/niagra2: WEB-INF index.jsp /opt/tomcat/webapps/springapps/niagra2/WEB-INF: lib web.xml === The web.xml file contains this: === ?xml version=1.0 encoding=UTF-8? !DOCTYPE web-app PUBLIC '-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN' 'http://java.sun.com/dtd/web-app_2_3.dtd' web-app /web-app === Tomcat was stop/started. Still when I try http://localhost:8080/springapps/niagra2/index.jsp I get The requested resource (/springapps/niagra2/index.jsp) is not available. Any other suggestions? -- Michael On Thursday 08 July 2004 09:48 am, Mike Curwen wrote: in order to be considered a webapp, you need to have an empty web.xml file in the WEB-INF folder under springapps. Do you have this? empty means web.xml contains: web-app /web-app You will also need to restart Tomcat for it to pick this up. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to start a web app?
Long story short: Tomcat does not search the webapps directory recursively for webapps; it loads contexts that are immediate children of the webapps directory. -QM QM: Thank you. That was it. I thought I could create subfolders at will. I must put all apps only one folder below. Any ideas about the problem with the Manager? I still cannot use it. Shouldn't I get a login screen as I do with the Administration option? -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to start a web app?
On Thursday 08 July 2004 11:14 am, Andrew Janian wrote: You don't get a login screen, you get a login popup. Not getting that either? Nope, not getting that either. I did see it once, yesterday. Ever since, nothing. I have even reinstalled Tomcat without benefit. -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to start a web app?
On Thursday 08 July 2004 11:50 am, Andrew Janian wrote: Are you sure that Tomcat itself is running? Would I not have trouble getting the Home page and logging into the Administration page were it not? Also, I can install, run and use JSP pages deployed to $CATALINA_HOME/webapps. I'm pretty sure it's running. Did the manager webapp get loaded. You should see in the logs that the manager webapp, administraion app, and a couple other examples get loaded if you are using Tomcat out of the box and have not disabled it. The log file shows these lines: Jul 8, 2004 11:24:19 AM org.apache.catalina.core.StandardHostDeployer remove INFO: Removing web application at context path /manager Jul 8, 2004 11:24:19 AM org.apache.catalina.core.StandardHostDeployer remove INFO: Removing web application at context path /admin Jul 8, 2004 11:24:19 AM org.apache.catalina.logger.LoggerBase stop INFO: unregistering logger Catalina:type=Logger,path=/admin,host=localhost Jul 8, 2004 11:24:29 AM org.apache.catalina.core.StandardHostDeployer install INFO: Processing Context configuration file URL file:/etc/tomcat/Catalina/localhost/manager.xml Jul 8, 2004 11:24:26 AM org.apache.catalina.core.StandardHostDeployer install INFO: Processing Context configuration file URL file:/etc/tomcat/Catalina/localhost/admin.xml Did you provide a username and password when the box popped up? What was the result if so? Yes, I did but it was the wrong ones and I was denied access at that time. I haven't had another chance. tomcat-users.xml looks like this: ?xml version='1.0' encoding='utf-8'? tomcat-users role rolename=tomcat/ role rolename=role1/ role rolename=manager/ role rolename=admin/ user username=mel password=tomcat roles=tomcat,admin,manager/ user username=tomcat password=tomcat roles=tomcat/ user username=role1 password=tomcat roles=role1/ /tomcat-users My username is mel. -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
install task problem
I cannot figure out how to get the ant install task to work. I have a WAR
file built in the main source directory ./myapp.war. Here is the relevant
part of the build.xml:
target name=install description=Install application in Tomcat
depends=deploywar
install url=${tomcat.manager.url}
username=${tomcat.manager.username}
password=${tomcat.manager.password}
path=/websubdir/myapp
war=jar:file:./myapp.war!/ /
/target
Error:
java.io.IOException: Server returned HTTP response code: 401 for URL:
http://localhost:8080/manager/install?path=%2Fwebsubdir%2Fmyappwar=jar%3Afile%3A.
%2Fmyapp.war%21%2F
Nothing else shows up in the logs.
Any advise? Thanks.
-- Michael
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Re: install task problem
Addendum: The problem isn't specific to the install task. The list task yields this error: java.io.IOException: Server returned HTTP response code: 401 for URL: http://localhost:8080/manager/list If I enter http://localhost:8080; in my browser the main Tomcat page comes up. I can enter the administration page after logging in. But if I try to open the manager I get a directory listing of the $CATALINA_HOME/server/webapps/manager directory. Stopping and restarting Tomcat doesn't help. Please advise. -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: I've officially decided that JSTL is one of the worst things to ever happen
This is like a painter blaming the paint because he cannot create as well as Rembrandt. Pick a language, any language. Now it's your job to make software that works with it. Nobody's going to buy the argument that you're a victim of the tools. On Sunday 04 July 2004 12:41 pm, Ivan Jouikov wrote: I worked on a large C++ project with 8 other people, and everything seemed to go fine, until we released the product. Once it was put to the real test, we realized that fixing bugs and redistributing it to the users is a dead-end HARD job. Never touching C++ again unless at a gun point. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
javax.servlet.jsp.tagext package
I have spent considerable time searching for the package javax.servlet.jsp.tagext on Tomcat 5 (0.26) without finding it. Can anyone suggest where I might find it, please? Thank you. -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: javax.servlet.jsp.tagext package
On Thursday 17 June 2004 01:31 pm, Filip Hanik - Dev wrote: jakarta-servletapi-5 Thank you for pointing me here. I have built from source and the README.txt in the jakarta-servletapi-5 directory states that a servlet.jar file should be built from the classes. However it isn't and the build.xml does not have a task to do this. Is this a bug or how do people use these classes? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Managing Session Objects - Preventing a Degredation in Performance
One more option, if you absolutely cannot control the lifetimes of the session objects because the user at the browser is in control and may or may not need the object for some time to come, create a caching system by writing the oldest, largest or least used objects to a database in such a way they can be recovered if needed. -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
n00b cannot get jar files to work.
How do I get jar files to work?
Learning Tomcat I have a simple HelloServlet class. When compiled and the
class file is inserted into the directory
/opt/tomcat/webapps/test/WEB-INF/classes/example
and the web.xml file given below is placed in
/opt/tomcat/webapps/test/WEB-INF/
and tomcat is restarted then the url
http://localhost:8080/test/hello
page reads:
Hello, world!
But if the same class is placed in a jar file and this jar file is inserted
into any of the following directories and given permissions tomcat:tomcat
/opt/tomcat/webapps/test/WEB-INF/lib
/opt/tomcat/common/lib
/opt/tomcat/shared/lib
when tomcat is restarted and the same url is addressed first there is
Blank page
the second time the page is refreshed there is
Status 500:
javax.servlet.ServletException: Wrapper cannot find servlet class
example.HelloServlet or a class it depends on
and the third and all subsequent times the page is refreshed there is
Status 400:
Servlet hello is not available
How do I get jar files to work? Thank you.
-- Michael
Appendix:
web.xml file:
?xml version=1.0 encoding=ISO-8859-1?
web-app xmlns=http://java.sun.com/xml/ns/j2ee;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd;
version=2.4
servlet
servlet-namehello/servlet-name
servlet-classexample.HelloServlet/servlet-class
/servlet
servlet-mapping
url-pattern/hello/url-pattern
servlet-namehello/servlet-name
/servlet-mapping
/web-app
HelloServlet.java:
package example;
import java.io.*;
import java.util.*;
import javax.servlet.http.*;
import javax.servlet.*;
public class HelloServlet extends HttpServlet {
public void doGet (
HttpServletRequest req,
HttpServletResponse res
) throws ServletException, IOException
{
res.setContentType(text/html);
PrintWriter pw = res.getWriter();
pw.println(!DOCTYPE HTML PUBLIC \-//W3C//DTD HTML 4.0
Transitional//EN\);
pw.println();
pw.println(head);
pw.println(meta http-equiv=\Content-Type\ content=\text/html;
charset=ISO-8859-1\);
pw.println();
pw.println(!-- The Servlet expression tags interpolate script variables
into the HTML --);
pw.println();
pw.println(titleHello, world!/title);
pw.println(/head);
pw.println();
pw.println(body bgcolor=white);
pw.println();
pw.println(h1Hello, world!/h1);
pw.println();
pw.println(/body);
pw.close();
}
public HelloServlet() {}
}
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Re: n00b cannot get jar files to work.
Thank you for the reply.
I assume that you meant the opposite when you wrote, There's no reason it
should work in a jar, and it SHOULD work in a jar.
When tomcat was installed it inserted a user and a group both named tomcat
on my machine (I'm using Gentoo Linux 2.6.4). However, I changed the
permissions to the jar file to my own permissions and group users but that
did not help. Anything else I can investigate? I'm really stuck and have
been working for days on just this one problem of getting Tomcat to see
classes in jar files. Any help would be much appreciated.
-- Michael
On Thursday 27 May 2004 09:48 am, Shapira, Yoav wrote:
Hi,
The class itself and web.xml look fine (though we usually tell people to
put servlet-name before url-pattern in the servlet-mapping element, for
backwards compatibility and/or historical reasons). There's no reason
it should work in a jar. Webapps/test/WEB-INF/lib is the right place to
put that jar. What are tomcat:tomcat permissions? The permissions
should be such that the server user can read the jar.
Yoav Shapira
Millennium Research Informatics
-Original Message-
From: Michael Labhard [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 27, 2004 12:39 PM
To: [EMAIL PROTECTED]
Subject: n00b cannot get jar files to work.
How do I get jar files to work?
Learning Tomcat I have a simple HelloServlet class. When compiled
and
the
class file is inserted into the directory
/opt/tomcat/webapps/test/WEB-INF/classes/example
and the web.xml file given below is placed in
/opt/tomcat/webapps/test/WEB-INF/
and tomcat is restarted then the url
http://localhost:8080/test/hello
page reads:
Hello, world!
But if the same class is placed in a jar file and this jar file is
inserted
into any of the following directories and given permissions
tomcat:tomcat
/opt/tomcat/webapps/test/WEB-INF/lib
/opt/tomcat/common/lib
/opt/tomcat/shared/lib
when tomcat is restarted and the same url is addressed first there is
Blank page
the second time the page is refreshed there is
Status 500:
javax.servlet.ServletException: Wrapper cannot find servlet
class
example.HelloServlet or a class it depends on
and the third and all subsequent times the page is refreshed there is
Status 400:
Servlet hello is not available
How do I get jar files to work? Thank you.
-- Michael
Appendix:
web.xml file:
?xml version=1.0 encoding=ISO-8859-1?
web-app xmlns=http://java.sun.com/xml/ns/j2ee;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd;
version=2.4
servlet
servlet-namehello/servlet-name
servlet-classexample.HelloServlet/servlet-class
/servlet
servlet-mapping
url-pattern/hello/url-pattern
servlet-namehello/servlet-name
/servlet-mapping
/web-app
HelloServlet.java:
package example;
import java.io.*;
import java.util.*;
import javax.servlet.http.*;
import javax.servlet.*;
public class HelloServlet extends HttpServlet {
public void doGet (
HttpServletRequest req,
HttpServletResponse res
) throws ServletException, IOException
{
res.setContentType(text/html);
PrintWriter pw = res.getWriter();
pw.println(!DOCTYPE HTML PUBLIC \-//W3C//DTD HTML 4.0
Transitional//EN\);
pw.println();
pw.println(head);
pw.println(meta http-equiv=\Content-Type\ content=\text/html;
charset=ISO-8859-1\);
pw.println();
pw.println(!-- The Servlet expression tags interpolate script
variables
into the HTML --);
pw.println();
pw.println(titleHello, world!/title);
pw.println(/head);
pw.println();
pw.println(body bgcolor=white);
pw.println();
pw.println(h1Hello, world!/h1);
pw.println();
pw.println(/body);
pw.close();
}
public HelloServlet() {}
}
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Re: n00b cannot get jar files to work.
Yoav: I would except the machine I am working on is an amd64 Opteron processor and I doubt that the binaries would work. Gentoo built tomcat from the 5.0.18 source and that what I am working with. Any way to confirm that tomcat's classpath actually contains the jar file? -- Michael Hi, Try installing it from the normal distribution at jakarta.apache.org, not an RPM or another package specific to your system. The normal distro installation is simple: download and unzip to a directory of your choice. It doesn't created any new users or groups and doesn't require special permissions setup. Yoav Shapira Millennium Research Informatics - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: n00b cannot get jar files to work.
Why do you doubt they'd work? I'd give them a shot if I were you -- after all, that IS on of the main points of Java ;) Oh, I see. It didn't occur to me that Tomcat was itself written in java. But, of course! So I downloaded the binaries and used them for the same tests just as you recommended, however there was no difference at all in the results. The jar file still does not work. By the way, I have double and triple checked that the jar file does indeed contain the very same class. -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: n00b cannot get jar files to work.
On Thursday 27 May 2004 11:04 am, Parsons Technical Services wrote: Wonder if the manifest or index of the jar is not correct? That could cause problems. The jar manifest is empty: Manifest-Version: 1.0 Created-By: 1.4.2-rc1 (Blackdown Java-Linux Team) I think this is right. Only signed files should be listed. -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: n00b cannot get jar files to work.
Yoav: As happens the realization of the solution came to me as a result of our exchanges. I had improperly built the jar file. The servlet was in a package example but the jar file did not contain a directory example that contained the class. It just contained the class. What I should have done is created the jar file and then EXPANDED it in the tomcat webapps class location. Then it would have been clear that the problem was the structure of the jar. Once the jar had a valid structure everything worked. This is the JDK I'm using: blackdown-jdk-1.4.2_rc1. Thank you very much for helping me with this. -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
n00b applet URI question
I have a simple project like this: -- /opt/tomcat/webapps/hello: HelloWorld.jsp META-INF WEB-INF /opt/tomcat/webapps/hello/META-INF: MANIFEST.MF /opt/tomcat/webapps/hello/WEB-INF: classes lib web.xml /opt/tomcat/webapps/hello/WEB-INF/classes/xptoolkit/web: HelloWorldServlet.class /opt/tomcat/webapps/hello/WEB-INF/lib: greetmodel.jar helloapplet.jar --- which should ultimately activate the HelloWorldApplet in the helloapplet.jar file and display Hello World from the JSP file: HelloWorld.jsp: [EMAIL PROTECTED] contentType=text/html% [EMAIL PROTECTED] pageEncoding=UTF-8% html headtitleHello World/title/head body jsp:plugin type=applet code=xptoolkit.applet.HelloWorldApplet archive=helloapplet.jar height=200 width=200 align=center jsp:fallback pplugin not supported/p /jsp:fallback /jsp:plugin /body /html However I only see a message Loading java applet ... and nothing more. Is the JSP file wrong, maybe the archive path to the applet is not correct? Thank you. -- Michael - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
