struts2攔截器,攔截指定方法
阿新 • • 發佈:2019-02-03
Struts.xml配置檔案
<?xml version="1.0"encoding="UTF-8"?> <!DOCTYPE strutsPUBLIC "-//Apache Software Foundation//DTD StrutsConfiguration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <!-- 開發模式 --> <constant name="struts.devMode"value="true" /> <!-- spring管理struts --> <constant name="struts.objectFactory"value="spring" /> <package name="struts-shop" extends="struts-default"> <interceptors> <!-- 先定義攔截器自己寫的攔截器類 name隨便寫 class為全限定名 --> <interceptor name="filterInterceptor"class="com.bw.lanjieqi.FilterInterceptor"/> <!-- 加到自己設定的攔截器棧裡邊去 --> <interceptor-stack name="myStack"> <!-- name為上面interceptor標籤裡面定義的name--> <interceptor-ref name="filterInterceptor"> <!--攔截器黑白名單 includeMethods為攔截的方法 excludeMethods不攔截這倆可以單獨存在 --> <param name="includeMethods">toAdd</param> <param name="excludeMethods">toUpdate</param> <!--指定引數name的值 可以不寫不需要就不寫--> <param name="name">FilterMethod</param> </interceptor-ref> <!-- 在自己配置的攔截器基礎上,必須有struts2預設的攔截器,不然出錯 --> <interceptor-ref name="defaultStack"></interceptor-ref> </interceptor-stack> </interceptors> <!-- 應用攔截器不寫攔截器不生效 --> <default-interceptor-ref name="myStack"/> </package> <!-- 將其他的struts2的配置檔案載入到主配置檔案struts.xml裡 --> <include file="struts-action.xml" /> </struts> Struts-action.xml配置檔案 <?xml version="1.0"encoding="UTF-8"?> <!DOCTYPE strutsPUBLIC "-//Apache Software Foundation//DTD StrutsConfiguration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <!-- extends繼承struts.xml裡的攔截器的配置 --> <package name="city"extends="struts-shop"> <action name="city_*"class="com.bw.action.CityAction" method="{1}"> <result name="list">/WEB-INF/view/list.jsp</result> <result name="toAdd">/WEB-INF/view/add.jsp</result> <result name="toUpdate">/WEB-INF/view/update.jsp</result> <result name="success"type="redirect">city_list</result> </action> </package> </struts>
FilterInterceptor
package com.bw.lanjieqi; import java.util.Date; import com.bw.action.CityAction; import com.opensymphony.xwork2.ActionInvocation; importcom.opensymphony.xwork2.interceptor.MethodFilterInterceptor; publicclass FilterInterceptor extends MethodFilterInterceptor{ //配置檔案中指定的引數可以不用 private String name; public String getName() { returnname; } publicvoid setName(Stringname) { this.name = name; } @Override protected StringdoIntercept(ActionInvocation invocation) throws Exception { // TODO Auto-generated method stub //獲取要攔截的action 如果不過過多的處理可以不寫 CityActionfa= (CityAction)invocation.getAction(); System.out.println(name+"攔截器在Action執行前攔截"+new Date()); String result=invocation.invoke(); System.out.println(name+"攔截器在Action執行後攔截"+new Date()); return result; } }