步驟1、匯入struts2的庫。

步驟2、編寫Interceptor類。

package com.voicesoft.Interceptor; import com.opensymphony.xwork2.Action; import com.opensymphony.xwork2.ActionInvocation; import com.opensymphony.xwork2.interceptor.AbstractInterceptor; import java.util.Map; /** * @version 1.0 * @author Luo Yong <luoyong@voicesoft.cn> * Created on : 2009-9-4, 12:42:05 * Copyright© 2009 Voicesoft Communications International Inc.All rights reserved. * Description：系統安全攔截器(攔截action) */ public class SecurityInterceptor extends AbstractInterceptor { @Override public String intercept(ActionInvocation interceptor) throws Exception { Map sessionMap = interceptor.getInvocationContext().getSession(); if (null == sessionMap.get("user")) { return Action.LOGIN; } else { return interceptor.invoke(); } } }

步驟3、寫struts2配置檔案struts.xml

<interceptors> <!-- 宣告許可權攔截器--> <interceptor name="securityInterceptor" class="com.vocesoft.genesysreport.action.web.interceptor.SecurityInterceptor" /> <!-- 宣告本系統預設截器棧--> <interceptor-stack name="myDefaultStack"> <interceptor-ref name="securityInterceptor" /> <interceptor-ref name="defaultStack" /> </interceptor-stack> </interceptors> <!--設定本系統預設的攔截器--> <default-interceptor-ref name="myDefaultStack" />

注意：實現登入的action要排除聯結器範圍

<action name="loginJson" class="login"> <result type="json"> <param name="defaultEncoding">utf-8</param> </result> <interceptor-ref name="defaultStack" /> </action>