这个拦截器用于拦截部分函数。
拦截器类
package com.test.interceptor;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.MethodFilterInterceptor;
public class FunctionInterceptor extends MethodFilterInterceptor{
@Override
protected String doIntercept(ActionInvocation invocation) throws Exception {
System.out.println("FunctionInterceptor拦截器之前。。。。。。。。。。。");
String result=invocation.invoke();
System.out.println("FunctionInterceptor。。。。。。。。。。拦截器之后。");
return result;
}
}
struts.xml配置
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<constant name="struts.enable.DynamicMethodInvocation" value="true" />
<constant name="struts.devMode" value="true" />
<package name="default" namespace="" extends="struts-default">
<!-- 这里是拦截器的配置 -->
<interceptors>
<interceptor name="test" class="com.test.interceptor.TestInterceptor"></interceptor>
<!-- 用于仅拦截某些方法 -->
<interceptor name="function" class="com.test.interceptor.FunctionInterceptor">
<param name="includeMethods">add</param>
</interceptor>
<interceptor-stack name="myStack">
<interceptor-ref name="test"/>
<interceptor-ref name="function"/>
<interceptor-ref name="defaultStack"/>
</interceptor-stack>
</interceptors>
<!-- 正确和错误的分别跳转,input是在验证失败后会跳转的页面 -->
<action name="data" class="com.test.action.ValideAction">
<interceptor-ref name="myStack"></interceptor-ref> <!-- 使用拦截器的动作 -->
<result name="success">/result.jsp</result>
<result name="input">/login.jsp</result>
</action>
<action name="FunctionInterceptor" class="com.test.action.ValideAction" method="add">
<interceptor-ref name="myStack"></interceptor-ref> <!-- 使用拦截器的动作 -->
<result name="success">/result.jsp</result>
<result name="input">/login.jsp</result>
</action>
<action name="dele" class="com.test.action.ValideAction" method="dele">
<interceptor-ref name="myStack"></interceptor-ref> <!-- 使用拦截器的动作 -->
<result name="success">/result.jsp</result>
<result name="input">/login.jsp</result>
</action>
</package>
</struts>
主要是这样一段代码:
<interceptor name="function" class="com.test.interceptor.FunctionInterceptor">
<param name="includeMethods">add</param>
</interceptor>
说明拦截的方法只有add,不拦截其他方法。
标签:MethodFilterInterceptor,拦截器,FunctionInterceptor,struts,add,用法,struts2,jsp,result From: https://blog.51cto.com/u_15990596/6101125