DwrFilter

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import java.lang.reflect.Method;import javax.servlet.http.HttpSession;import org.directwebremoting.AjaxFilter;import org.directwebremoting.AjaxFilterChain;import org.directwebremoting.ScriptBuffer;import org.directwebremoting.WebContext;import org.directwebremoting.WebContextFactory;import org.directwebremoting.proxy.dwr.Util;@SuppressWarnings("deprecation")public class DWRFilter implements AjaxFilter {@Overridepublic Object doFilter(Object object, Method method, Object[] arr,AjaxFilterChain chain) throws Exception {WebContext ctx = WebContextFactory.get();HttpSession session = ctx.getSession();User loginPersonnel = (User) session.getAttribute("loginUser");if (null == loginPersonnel) {System.out.println("session验证失败");logOut();return null;}Object obj = chain.doFilter(object, method, arr);return obj;}/**调用Js方法**/public void logOut(){WebContext wct = WebContextFactory.get();Util utilThis = new Util(wct.getScriptSession());utilThis.addScript( new ScriptBuffer("js()"));}}

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 3.0//EN" "http://getahead.org/dwr//dwr30.dtd"><dwr><allow>  <filter class="ges.common.filter.DWRFilter"></filter></allow></dwr>

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