javax.servlet.ServletException: PWC1232: Exceeded maximum depth for nested request dispatches: 20
I have created simple Java Dynamic Web project in Eclipse. I host my project on Glassfish 2.1.1. When I try open p1.jsf page in browser I got following error:
javax.servlet.ServletException: PWC1232: Exceeded maximum depth for nested request dispatches: 20.
I have no idea how to correct this error...
Here is may p1.jsf definition:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@ taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<f:view>
<h:outputLabel value="outputLabel"></h:outputLabel>
</f:view>
</body>
</html>
My web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>web4</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>FacesServlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>FacesServlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
</web-app>
My faces-config.xml:
<?xml version="1.0" encoding="UTF-8"?>
<faces-config
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd"
version="1.2">
</faces-config>
Error details from Glassfish log:
PWC1406: Servlet.service() for servlet FacesServlet threw exception javax.servlet.ServletException: PWC1232: Exceeded maximum depth for nested request dispatches: 20
org.apache.catalina.core.ApplicationDispatcher.doInvoke(ApplicationDispatcher.java:860)
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:723)
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:558)
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:490)
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:382)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:410)
com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:468)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:140)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:427)
org.apache.catalina.core.ApplicationDispatcher.doInvoke(ApplicationDispatcher.java:873)
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:723)
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:558)
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.开发者_如何学Pythonjava:490)
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:382)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:410)
com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:468)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:140)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:427)
org.apache.catalina.core.ApplicationDispatcher.doInvoke(ApplicationDispatcher.java:873)
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:723)
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:558)
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:490)
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:382)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:410)
com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:468)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:140)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:427)
org.apache.catalina.core.ApplicationDispatcher.doInvoke(ApplicationDispatcher.java:873)
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:723)
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:558)
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:490)
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:382)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:410)
com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:468)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:140)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
- FacesServlet should be mapped on an
url-patternof*.jsf(or anything else other than*.jsp). - No
javax.faces.DEFAULT_SUFFIXis needed in web.xml if you already use JSP. The JSP page itself must actually be namedpagename.jsp(and thus notpagename.jsf, this is the root cause of the recursive forward calls). - Open the page in the webbrowser using the
*.jsfsuffix:http://example.com/context/pagename.jsf(and thus not bypagename.jsp, else you would getRuntimeException: FacesContext not found).
This means that recursive internal forwards occur. A few things to observe:
- make sure you are accessing the page via the right suffix. i.e.
http://localhost:8080/app/p1.jsp, and notp1.page- you have mapped the jsf suffix to be.jsp - check your navigation rules in your faces-config.xml
make sure you have the following context-param defined:
<context-param> <param-name>javax.faces.DEFAULT_SUFFIX</param-name> <param-value>.jsp</param-value> </context-param>
To summarize - the javax.faces.DEFAULT_SUFFIX determines the file extension under which the page are sought, and the <url-pattern> of the faces-servlet determines the way the jsf pages are accessed by clients (browsers)
加载中,请稍侯......
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