Tomcat 7: Invalid mapping (java.lang.IllegalArgumentException) [duplicate]

问题

I am migrating an existing project from Tomcat 6 to 7. Upon startup I am encountering this logged error message:

Jul 02, 2013 2:38:39 PM org.apache.catalina.startup.ContextConfig parseWebXml
SEVERE: Parse error in application web.xml file at jndi:/localhost/padd/WEB-INF/web.xml
org.xml.sax.SAXParseException; systemId: jndi:/localhost/padd/WEB-INF/web.xml; lineNumber: 309; columnNumber: 21; Error at (309, 21) : The servlets named [ArtefactServlet] and [saveArtefactServlet] are both mapped to the url-pattern [/saveRestoration] which is not permitted
    at org.apache.tomcat.util.digester.Digester.createSAXException(Digester.java:2687)
    ...
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalArgumentException: The servlets named [ArtefactServlet] and [saveArtefactServlet] are both mapped to the url-pattern [/saveRestoration] which is not permitted

Here the WEB-INF/web.xml line 309fff:

  <servlet-mapping>
    <servlet-name>saveArtefactServlet</servlet-name>
    <url-pattern>/saveRestoration</url-pattern>
  </servlet-mapping>

EDIT:

  <servlet-mapping>
    <servlet-name>ArtefactServlet</servlet-name>
    <url-pattern>/saveRestoration</url-pattern>
  </servlet-mapping>

Here tomcat's web.xml:

<servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>

    <!-- The mappings for the JSP servlet -->
    <servlet-mapping>
        <servlet-name>jsp</servlet-name>
        <url-pattern>*.jsp</url-pattern>
        <url-pattern>*.jspx</url-pattern>
    </servlet-mapping>

I tried to play around with the mapping, but couldn't make any progress. Hope you can help!

回答1:

The error says :

The servlets named [ArtefactServlet] and [saveArtefactServlet] are both mapped to the url-pattern [/saveRestoration] which is not permitted

So tomcat doesn't know which servlet to be called when your url pattern is matched. Give different url patterns for these two servlets ArtefactServlet, saveArtefactServlet

回答2:

java.lang.IllegalArgumentException: The servlets named...

I fetched this cause where I create new servlet in different package (name='syncro'). My servlet located in syncro.SynchronizeServlet And when I add information about this servlet in deployment descriptor (web.xml) I catch error: IllegalArgumentException

Example of incorrect descriptor part:

<servlet>
    <description></description>
    <display-name>SynchronizeServlet</display-name>
    <servlet-name>SynchronizeServlet</servlet-name>
    <servlet-class>SynchronizeServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>SynchronizeServlet</servlet-name>
    <url-pattern>/SynchronizeServlet</url-pattern>
    <url-pattern>/SynServlet</url-pattern>
  </servlet-mapping>

When I add correct path for servlet - error disappeared. Correct desc below:

<servlet>
    <description></description>
    <display-name>syncro.SynchronizeServlet</display-name>
    <servlet-name>syncro.SynchronizeServlet</servlet-name>
    <servlet-class>syncro.SynchronizeServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>syncro.SynchronizeServlet</servlet-name>
    <url-pattern>/SynchronizeServlet</url-pattern>
    <url-pattern>/SynServlet</url-pattern>
  </servlet-mapping>

==> 73!

来源：https://stackoverflow.com/questions/17426121/tomcat-7-invalid-mapping-java-lang-illegalargumentexception

标签

java

Tomcat

servlets

tomcat7

web.xml