jsf 中 ViewExpiredException 的处置

2012-10-06

jsf 中 ViewExpiredException 的处理在jsf 中，存在 session 的地方，一般会去使用session 去保存数据或者其

jsf 中 ViewExpiredException 的处理
在jsf 中，存在 session 的地方，一般会去使用session 去保存数据或者其他的事情，但是当session time out or forced to be invalidate , 就会抛出这样的 ViewExpiredException 异常。

如果是 web server == sun app server
then solution is :
in web.xml :

<error-page><exception-type>javax.faces.application.ViewExpiredException</exception-type><location>/sessionExpired.jsp</location></error-page>

in sessionExpired.jsp:

<%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"><%@include file="/WEB-INF/jspf/taglibs.jspf" %><c:redirect url="/login.jsf" />

在jsf 中，存在 session 的地方，一般会去使用session 去保存数据或者其他的事情，但是当session time out or forced to be invalidate , 就会抛出这样的 ViewExpiredException 异常。

如果是 web server == sun app server

then solution is :：

in web.xml :

<error-page><exception-type>javax.faces.application.ViewExpiredException</exception-type><location>/sessionExpired.jsp</location></error-page>

sessionExpired.jsp:

<%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"><%@include file="/WEB-INF/jspf/taglibs.jspf" %><c:redirect url="/login.jsf" />

but if in tomcat container ,the solution is some complicated :

package trackingmap;import com.sun.faces.lifecycle.LifecycleImpl;import javax.faces.FacesException;import javax.faces.context.FacesContext;import javax.servlet.http.HttpServletResponse;/** * * @author chenwq */public class TeleLifecycleImpl extends LifecycleImpl{        /** Creates a new instance of TeleLifecycleImpl */    public TeleLifecycleImpl() {        super();    }         public void execute(FacesContext context) throws FacesException{        try{            super.execute(context);        }catch(javax.faces.application.ViewExpiredException e){            System.out.println("catch ViewExpiredException here");            try{                context.responseComplete();                context.renderResponse();                HttpServletResponse response = (HttpServletResponse) context.getExternalContext().getResponse();                String url = context.getExternalContext().getRequestContextPath() + "/faces/Login.jsp";///sessionExpired.jsp";                response.sendRedirect(url);            }catch(Exception e1){                System.out.println("url redirect wrong ");            }            //throw e;        }catch(FacesException ex){            throw ex;        }            }     }package trackingmap;import com.sun.faces.lifecycle.LifecycleFactoryImpl;import javax.faces.lifecycle.Lifecycle;/** * * @author chenwq */public class TeleLifecycleFactoryImpl extends LifecycleFactoryImpl {    public final static String CUSTOM_LIFECYCLE = "TELEEPOCH";        /** Creates a new instance of TeleLifecycleFactoryImpl */    public TeleLifecycleFactoryImpl() {        addLifecycle(CUSTOM_LIFECYCLE,new TeleLifecycleImpl());    }      }

add into faces-config.xml :

<factory> <lifecycle-factory>trackingmap.TeleLifecycleFactoryImpl</lifecycle-factory></factory>

also add into web.xml

<context-param>      <param-name>javax.faces.LIFECYCLE_ID</param-name>     <param-value>TELEEPOCH</param-value></context-param>

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jsf 中 ViewExpiredException 的处置