Tomcat 5.5 Do not find my servlet

Question

I compiled the source into a class Filesand then put it in a folder:

Tomcat 5.5\WEB-INF\ROOT\classes\Files.class

And added this to the file web.xml:

<servlet>
    <servlet-name>Files</servlet-name>
    <servlet-class>Files</servlet-class>
</servlet>

But when I tried to access the URL http://localhost:8080/Files, I got this error from Tomcat: Tomcat 5.5 404 Error http://img251.imageshack.us/img251/5042/tomcat404.png

---

Update : after adding <servlet-mapping>Now I get the following error:

exception

javax.servlet.ServletException: Error allocating a servlet instance
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:837)
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:640)
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1287)
java.lang.Thread.run(Unknown Source)

root cause

java.lang.NoClassDefFoundError: IllegalName: /Files
java.lang.ClassLoader.preDefineClass(Unknown Source)
java.lang.ClassLoader.defineClassCond(Unknown Source)
java.lang.ClassLoader.defineClass(Unknown Source)
java.security.SecureClassLoader.defineClass(Unknown Source)
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1960)
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:931)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1405)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1284)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:837)
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:640)
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1287)
java.lang.Thread.run(Unknown Source)

Answer 1

root cause
java.lang.NoClassDefFoundError: IllegalName: /Files

, , /Files. , , , <servlet-class> /Files. . servletcontainer :

/Files Files = new /Files();

. :

<servlet>
    <servlet-name>instanceName</servlet-name>
    <servlet-class>com.example.ServletClass</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>instanceName</servlet-name>
    <url-pattern>/urlPattern</url-pattern>
</servlet-mapping>

Java :

com.example.ServletClass instanceName = new com.example.ServletClass();

<servlet-class> , . <servlet-name> . <url-pattern> URL, .

Answer 2

<servlet-mapping>
  <servlet-name>Files</servlet-name>
  <url-pattern>/Files</url-pattern>
</servlet-mapping>

url

Answer 3

:

<servlet-mapping>
  <servlet-name>Files</servlet-name>
  <url-pattern>/Files</url-pattern>
</servlet-mapping>

Answer 4

In addition, in the class folder under WEB-INF, make sure that you create a folder whose name matches the name of the class package and put all the classes in this folder. In web.xml use

<servlet> <servlet-name>File</servlet-name> <servlet-class>package.File</servlet-class> </servlet>

to reference the servlet in the class folder