struts2拦截器解决重复提交源代码

package com.struts2.interceptor; import com.opensymphony.xwork2.ActionInvocation; import com.opensymphony.xwork2.interceptor.MethodFilterInterceptor; public class MethInterceptor extends MethodFilterInterceptor { @Override protected String doIntercept(ActionInvocation invoke) throws Exception { System.out.println("这里是方法拦截器"); return invoke.invoke(); } }