I have written a very simple test Filter, and am running it in an
embedded Jetty 9.2.18.v20160721 in debug mode in IntelliJ IDEA:
|System.out.println(TestFilter.class.getSimpleName()// line 12+" >
"+((HttpServletRequest)servletRequest).getRequestURL()+": IP
"+servletRequest.getRemoteAddr()+"; at "+newDate().toString());// Pass
request back down the filter
chainfilterChain.doFilter(servletRequest,servletResponse);// line 20}|
and added it to web.xml:
|<filter><filter-name>TestFilter</filter-name><filter-class>net.twentyonesolutions.TestFilter</filter-class></filter><filter-mapping><filter-name>TestFilter</filter-name><url-pattern>/*</url-pattern>
</filter-mapping>|
When running in debug mode in IntelliJ IDEA, the Filter's doFilter()
method is called twice, and the output from line 12 is written twice.
You can see the stack trace at the 2nd call below.
When I deploy the Filter to regular Jetty (same version), or Tomcat, the
output from line 12 is only written once, as expected.
Why is this happening in debug/embedded mode? TIA
I posted this question with a bit more detail at
http://stackoverflow.com/questions/39337962/why-does-my-servlet-filter-run-twice
Stack trace at 2nd call:
[net.twentyonesolutions.TestFilter.doFilter(TestFilter.java:20)
,org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
,net.twentyonesolutions.TestFilter.doFilter(TestFilter.java:20)
,org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
,org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
,org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
,org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
,org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
,org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
,org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
,org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
,org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
,org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
,org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
,org.eclipse.jetty.server.Server.handle(Server.java:497)
,org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
,org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:245)
,org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
,org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
,org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
,java.lang.Thread.run(Thread.java:745)]
--
Igal Sapir
Lucee Core Developer
Lucee.org <http://lucee.org/>
_______________________________________________
jetty-users mailing list
jetty-users@eclipse.org
To change your delivery options, retrieve your password, or unsubscribe from
this list, visit
https://dev.eclipse.org/mailman/listinfo/jetty-users
