J2EE specs says librairies of a webapp must be in /WEB-INF/lib (that's
for the part about subjet line where you use /lib)
Now, for you mail content you seem to be indeed using WEB-INF/lib, and
it seems to be the 3 libs required by wicket example. I suggest you
investigate the possibility of having downloaded a broken jar. Maybe,
try switching away from a beta version....
Ghodmode a écrit :
This is related to my previous email thread, but slightly different
circumstances.
Apache Tomcat 6.0.14
Java 1.6.0_02-b05
Wicket 1.3.0-beta3
I'm trying to run a Wicket application and it's not working. I'm getting a
NoClassDefFoundError:
java.lang.NoClassDefFoundError:
org/apache/wicket/protocol/http/WebApplication
I think I must be misunderstanding something basic about Tomcat web
application deployment.
So, I create a basic "HelloWorld" type servlet to try and troubleshoot the
problem.
I've double- and triple-checked the package against the documentation and
even verified it by listing the contents of the JAR with unzip.
What am I doing wrong?
The Wicket JAR file and two of its dependencies are in WEB-INF/lib:
@home:~/dev/tomcat/webapps/HelloWicket/WEB-INF/classes$ ls -ltr ../lib
total 1648
-rw-r--r-- 1 vince vince 1657246 2007-09-04 10:00 wicket-1.3.0-beta3.jar
-rw-r--r-- 1 vince vince 7449 2007-09-04 10:00 slf4j-simple-1.4.3.jar
-rw-r--r-- 1 vince vince 15345 2007-09-04 10:00 slf4j-api-1.4.3.jar
Here's my web.xml:
@home:~/dev/tomcat/webapps/HelloWicket/WEB-INF$ cat web.xml
<?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>
<context-param>
<param-name>configuration</param-name>
<param-value>development</param-value>
</context-param>
<servlet>
<servlet-name>HelloWicket</servlet-name>
<servlet-class>org.apache.wicket.protocol.http.WicketServlet
</servlet-class>
<init-param>
<param-name>applicationClassName</param-name>
<param-value>mypackage.HelloWicketApp</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HelloWicket</servlet-name>
<url-pattern>/helloWicket/*</url-pattern>
</servlet-mapping>
</web-app>
Here's the layout of my servlet's directory:
@home:~/dev/tomcat/webapps/HelloWicket$ ls -ltrR
:
total 8
-rw-r--r-- 1 vince vince 44 2007-09-04 10:00 index.html
drwxr-xr-x 4 vince vince 4096 2007-09-04 10:27 WEB-INF
/WEB-INF:
total 12
drwxr-xr-x 2 vince vince 4096 2007-09-04 10:00 lib
drwxr-xr-x 3 vince vince 4096 2007-09-04 10:05 classes
-rwxr-xr-x 1 vince vince 755 2007-09-04 10:08 web.xml
/WEB-INF/lib:
total 1648
-rw-r--r-- 1 vince vince 1657246 2007-09-04 10:00 wicket-1.3.0-beta3.jar
-rw-r--r-- 1 vince vince 7449 2007-09-04 10:00 slf4j-simple-1.4.3.jar
-rw-r--r-- 1 vince vince 15345 2007-09-04 10:00 slf4j-api-1.4.3.jar
/WEB-INF/classes:
total 8
-rw-r--r-- 1 vince vince 601 2007-09-04 10:04 HelloWicket.html
drwxr-xr-x 2 vince vince 4096 2007-09-04 10:20 mypackage
/WEB-INF/classes/mypackage:
total 16
-rw-r--r-- 1 vince vince 238 2007-09-04 10:06 HelloWicket.java
-rw-r--r-- 1 vince vince 192 2007-09-04 10:20 HelloWicketApp.java
-rw-r--r-- 1 vince vince 468 2007-09-04 10:20 HelloWicket.class
-rw-r--r-- 1 vince vince 347 2007-09-04 10:20 HelloWicketApp.class
Thank you,
Vince
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