A common exception ,"Invalid <url-pattern> servlet mapping" when deploying application server in tomcat.
The url-pattern specification:
- A string beginning with a ‘/’ character and ending with a ‘/*’ suffix is used for path mapping.
- A string beginning with a ‘*.’ prefix is used as an extension mapping.
- A string containing only the ’/’ character indicates the "default" servlet of the application. In this case the servlet path is the request URI minus the context path and the path info is null.
- All other strings are used for exact matches only.
invalid web.xml:
<servlet> <servlet-name>remoteLoggingServlet</servlet-name> <servlet-class>com.google.gwt.logging.server.RemoteLoggingServiceImpl</servlet-class> </servlet> <servlet-mapping> <servlet-name>remoteLoggingServlet</servlet-name> <url-pattern>mweb/remote_logging</url-pattern> </servlet-mapping>
valid web.xml:
<servlet> <servlet-name>remoteLoggingServlet</servlet-name> <servlet-class>com.google.gwt.logging.server.RemoteLoggingServiceImpl</servlet-class> </servlet> <servlet-mapping> <servlet-name>remoteLoggingServlet</servlet-name> <url-pattern>/mweb/remote_logging/*</url-pattern> </servlet-mapping>
