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Posted to user@struts.apache.org by "Matthew J. Vincent" <vi...@cs.usm.maine.edu> on 2004/01/12 17:08:01 UTC
Generic Error Handler
I searched the archives and I must have missed it. I want to have a generic
JSP or Servlet get invoked when an error occurs in my application. For
example, when I try to clink on a link on one of my pages I get an error
message:
HTTP Status 500 - No action instance for path /detailSearch could be created
Looking at the logs it is obvious why there is an error (because I didn't
create the org.jax.mgi.mtb.wi.actions.DetailSearchAction class). What is
the best approach to handle this type of error? I tried adding the
following to my struts-config.xml, but it is not going to the appError.jsp
page.
<global-exceptions>
<exception key="system.error"
type="java.lang.Exception"
path="/appError.jsp"/>
<exception key="system.error"
type="java.lang.ClassNotFoundException"
path="/appError.jsp"/>
</global-exceptions>
What is the best way to handle this? What about other types of errors? Is
there a rule of thumb that everyone follows?
Sorry for the hopefully easy (probably already asked) question.
Matt
Here is an output of the logs:
SEVERE: No action instance for path /detailSearch could be created
java.lang.ClassNotFoundException:
org.jax.mgi.mtb.wi.actions.DetailSearchAction
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1366)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1213)
at
org.apache.struts.util.RequestUtils.applicationClass(RequestUtils.java:207)
at
org.apache.struts.util.RequestUtils.applicationInstance(RequestUtils.java:23
1)
at
org.apache.struts.action.RequestProcessor.processActionCreate(RequestProcess
or.java:326)
at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:268)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.j
ava:284)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:204)
at
org.jax.mgi.mtb.wi.filters.TimerFilter.doFilter(TimerFilter.java:23)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.j
ava:233)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:204)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:256)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:151)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContext
Valve.java:24
5)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:199)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:151)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195
)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:151)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164
)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:149)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:156)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:151)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
at
org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:211)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:805)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11P
rotocol.java:696)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:677)
at java.lang.Thread.run(Thread.java:534)
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RE: Generic Error Handler
Posted by Robert Taylor <rt...@mulework.com>.
Matthew,
What we do is define this in our web.xml file so that when the container
gets a 500, 404, etc... error status code, I can then assign the appropriate
Struts action to handle it. For example:
<error-page>
<error-code>500</error-code>
<location>/c/systemError</location>
</error-page>
<error-page>
<error-code>404</error-code>
<location>/c/fileNotFoundError</location>
</error-page>
For application exceptions that occur in an action class, you
could (as you have already mentioned) defined some general
global exceptions handlers and then define more fine grained
exception handlers as necessary (per action).
hth,
robert
> -----Original Message-----
> From: Matthew J. Vincent [mailto:vincent@cs.usm.maine.edu]
> Sent: Monday, January 12, 2004 11:08 AM
> To: Struts Users Mailing List
> Subject: Generic Error Handler
>
>
> I searched the archives and I must have missed it. I want to
> have a generic
> JSP or Servlet get invoked when an error occurs in my application. For
> example, when I try to clink on a link on one of my pages I get an error
> message:
>
> HTTP Status 500 - No action instance for path /detailSearch could
> be created
>
> Looking at the logs it is obvious why there is an error (because I didn't
> create the org.jax.mgi.mtb.wi.actions.DetailSearchAction class). What is
> the best approach to handle this type of error? I tried adding the
> following to my struts-config.xml, but it is not going to the appError.jsp
> page.
>
> <global-exceptions>
> <exception key="system.error"
> type="java.lang.Exception"
> path="/appError.jsp"/>
>
> <exception key="system.error"
> type="java.lang.ClassNotFoundException"
> path="/appError.jsp"/>
>
> </global-exceptions>
>
> What is the best way to handle this? What about other types of
> errors? Is
> there a rule of thumb that everyone follows?
>
> Sorry for the hopefully easy (probably already asked) question.
>
> Matt
>
>
> Here is an output of the logs:
>
> SEVERE: No action instance for path /detailSearch could be created
> java.lang.ClassNotFoundException:
> org.jax.mgi.mtb.wi.actions.DetailSearchAction
> at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClass
> Loader.jav
> a:1366)
> at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClass
> Loader.jav
> a:1213)
> at
> org.apache.struts.util.RequestUtils.applicationClass(RequestUtils.
> java:207)
> at
> org.apache.struts.util.RequestUtils.applicationInstance(RequestUti
> ls.java:23
> 1)
> at
> org.apache.struts.action.RequestProcessor.processActionCreate(Requ
> estProcess
> or.java:326)
> at
> org.apache.struts.action.RequestProcessor.process(RequestProcessor
> .java:268)
> at
> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
> at
> org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(A
> pplication
> FilterChain.j
> ava:284)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(Applicati
> onFilterCh
> ain.java:204)
>
> at
> org.jax.mgi.mtb.wi.filters.TimerFilter.doFilter(TimerFilter.java:23)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(A
> pplication
> FilterChain.j
> ava:233)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(Applicati
> onFilterCh
> ain.java:204)
>
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapp
> erValve.ja
> va:256)
> at
> org.apache.catalina.core.StandardValveContext.invokeNext(StandardV
> alveContex
> t.java:151)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
> java:564)
> at
> org.apache.catalina.core.StandardContextValve.invokeInternal(Stand
> ardContext
> Valve.java:24
> 5)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardConte
> xtValve.ja
> va:199)
> at
> org.apache.catalina.core.StandardValveContext.invokeNext(StandardV
> alveContex
> t.java:151)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
> java:564)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValv
> e.java:195
> )
> at
> org.apache.catalina.core.StandardValveContext.invokeNext(StandardV
> alveContex
> t.java:151)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValv
> e.java:164
> )
> at
> org.apache.catalina.core.StandardValveContext.invokeNext(StandardV
> alveContex
> t.java:149)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
> java:564)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngine
> Valve.java
> :156)
> at
> org.apache.catalina.core.StandardValveContext.invokeNext(StandardV
> alveContex
> t.java:151)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
> java:564)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
> at
> org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:211)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:805)
> at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.pr
> ocessConne
> ction(Http11P
> rotocol.java:696)
> at
> org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605)
> at
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Thre
> adPool.jav
> a:677)
> at java.lang.Thread.run(Thread.java:534)
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: struts-user-help@jakarta.apache.org
>
---------------------------------------------------------------------
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RE: Generic Error Handler
Posted by "Matthew J. Vincent" <vi...@cs.usm.maine.edu>.
Would this be better handled in the web.xml????
Matt
-----Original Message-----
From: Matthew J. Vincent [mailto:vincent@cs.usm.maine.edu]
Sent: Monday, January 12, 2004 11:08 AM
To: Struts Users Mailing List
Subject: Generic Error Handler
I searched the archives and I must have missed it. I want to have a generic
JSP or Servlet get invoked when an error occurs in my application. For
example, when I try to clink on a link on one of my pages I get an error
message:
HTTP Status 500 - No action instance for path /detailSearch could be created
Looking at the logs it is obvious why there is an error (because I didn't
create the org.jax.mgi.mtb.wi.actions.DetailSearchAction class). What is
the best approach to handle this type of error? I tried adding the
following to my struts-config.xml, but it is not going to the appError.jsp
page.
<global-exceptions>
<exception key="system.error"
type="java.lang.Exception"
path="/appError.jsp"/>
<exception key="system.error"
type="java.lang.ClassNotFoundException"
path="/appError.jsp"/>
</global-exceptions>
What is the best way to handle this? What about other types of errors? Is
there a rule of thumb that everyone follows?
Sorry for the hopefully easy (probably already asked) question.
Matt
Here is an output of the logs:
SEVERE: No action instance for path /detailSearch could be created
java.lang.ClassNotFoundException:
org.jax.mgi.mtb.wi.actions.DetailSearchAction
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1366)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1213)
at
org.apache.struts.util.RequestUtils.applicationClass(RequestUtils.java:207)
at
org.apache.struts.util.RequestUtils.applicationInstance(RequestUtils.java:23
1)
at
org.apache.struts.action.RequestProcessor.processActionCreate(RequestProcess
or.java:326)
at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:268)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.j
ava:284)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:204)
at
org.jax.mgi.mtb.wi.filters.TimerFilter.doFilter(TimerFilter.java:23)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.j
ava:233)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:204)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:256)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:151)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContext
Valve.java:24
5)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:199)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:151)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195
)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:151)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164
)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:149)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:156)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:151)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
at
org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:211)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:805)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11P
rotocol.java:696)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:677)
at java.lang.Thread.run(Thread.java:534)
---------------------------------------------------------------------
To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: struts-user-help@jakarta.apache.org
---------------------------------------------------------------------
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RE: Generic Error Handler
Posted by Norm Deane <no...@vanderbilt.edu>.
We generally map HTTP 400, 500, and 404 to an error handler action via the
web.xml like so...
<error-page>
<error-code>500</error-code>
<location>/Error.do</location>
</error-page>
<error-page>
<error-code>404</error-code>
<location>/InvalidUrl.do</location>
</error-page>
<error-page>
<error-code>400</error-code>
<location>/InvalidUrl.do</location>
</error-page>
--Norm
--
Norm Deane
MIS Consultant
Vanderbilt University
(615) 322-7855
norm.deane@vanderbilt.edu
> -----Original Message-----
> From: Matthew J. Vincent [mailto:vincent@cs.usm.maine.edu]
> Sent: Monday, January 12, 2004 10:08 AM
> To: Struts Users Mailing List
> Subject: Generic Error Handler
>
>
> I searched the archives and I must have missed it. I want to
> have a generic JSP or Servlet get invoked when an error
> occurs in my application. For example, when I try to clink
> on a link on one of my pages I get an error
> message:
>
> HTTP Status 500 - No action instance for path /detailSearch
> could be created
>
> Looking at the logs it is obvious why there is an error
> (because I didn't create the
> org.jax.mgi.mtb.wi.actions.DetailSearchAction class). What
> is the best approach to handle this type of error? I tried
> adding the following to my struts-config.xml, but it is not
> going to the appError.jsp page.
>
> <global-exceptions>
> <exception key="system.error"
> type="java.lang.Exception"
> path="/appError.jsp"/>
>
> <exception key="system.error"
> type="java.lang.ClassNotFoundException"
> path="/appError.jsp"/>
>
> </global-exceptions>
>
> What is the best way to handle this? What about other types
> of errors? Is there a rule of thumb that everyone follows?
>
> Sorry for the hopefully easy (probably already asked) question.
>
> Matt
>
>
> Here is an output of the logs:
>
> SEVERE: No action instance for path /detailSearch could be created
> java.lang.ClassNotFoundException:
> org.jax.mgi.mtb.wi.actions.DetailSearchAction
> at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappC
> lassLoader.jav
> a:1366)
> at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappC
> lassLoader.jav
> a:1213)
> at
> org.apache.struts.util.RequestUtils.applicationClass(RequestUt
> ils.java:207)
> at
> org.apache.struts.util.RequestUtils.applicationInstance(Reques
> tUtils.java:23
> 1)
> at
> org.apache.struts.action.RequestProcessor.processActionCreate(
> RequestProcess
> or.java:326)
> at
> org.apache.struts.action.RequestProcessor.process(RequestProce
> ssor.java:268)
> at
> org.apache.struts.action.ActionServlet.process(ActionServlet.j
> ava:1482)
> at
> org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
> at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
> at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilt
> er(Application
> FilterChain.j
> ava:284)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli
> cationFilterCh
> ain.java:204)
>
> at
> org.jax.mgi.mtb.wi.filters.TimerFilter.doFilter(TimerFilter.java:23)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilt
> er(Application
> FilterChain.j
> ava:233)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli
> cationFilterCh
> ain.java:204)
>
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardW
> rapperValve.ja
> va:256)
> at
> org.apache.catalina.core.StandardValveContext.invokeNext(Stand
> ardValveContex
> t.java:151)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> ine.java:564)
> at
> org.apache.catalina.core.StandardContextValve.invokeInternal(S
> tandardContext
> Valve.java:24
> 5)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardC
> ontextValve.ja
> va:199)
> at
> org.apache.catalina.core.StandardValveContext.invokeNext(Stand
> ardValveContex
> t.java:151)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> ine.java:564)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHost
> Valve.java:195
> )
> at
> org.apache.catalina.core.StandardValveContext.invokeNext(Stand
> ardValveContex
> t.java:151)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReport
> Valve.java:164
> )
> at
> org.apache.catalina.core.StandardValveContext.invokeNext(Stand
> ardValveContex
> t.java:149)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> ine.java:564)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEn
> gineValve.java
> :156)
> at
> org.apache.catalina.core.StandardValveContext.invokeNext(Stand
> ardValveContex
> t.java:151)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> ine.java:564)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
> at
> org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.
> java:211)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Process
> or.java:805)
> at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandle
> r.processConne
> ction(Http11P
> rotocol.java:696)
> at
> org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoi
> nt.java:605)
> at
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(
> ThreadPool.jav
> a:677)
> at java.lang.Thread.run(Thread.java:534)
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: struts-user-help@jakarta.apache.org
>
>
---------------------------------------------------------------------
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