struts的动态方法调用

来源：互联网发布：用excel查找重复数据编辑：程序博客网时间：2024/05/02 19:04

1.首先在struts.xml文件中设置支持动态方法的调用

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd"><struts>

<!--动态方法调用设置为true支持-->

<span style="white-space:pre"></span><constant name="struts.enable.DynamicMethodInvocation" value="true">

<span style="white-space:pre"></span><package name="my" extends="struts-default" namespace="/"><span style="white-space:pre"></span><action name="test" class="com.itany.action.UserAction"><span style="white-space:pre"></span><result>/success.jsp</result><span style="white-space:pre"></span><result name="error">/error.jsp</result><span style="white-space:pre"></span></action><span style="white-space:pre"></span><span style="white-space:pre"></span><action name="reg" class="com.itany.action.UserAction"><span style="white-space:pre"></span><result>/registesuccess.jsp</result><span style="white-space:pre"></span></action><span style="white-space:pre"></span></package>

<pre name="code" class="html"></struts>

前台页面jsp代码：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@taglib uri="/struts-tags" prefix="s" %><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <base href="<%=basePath%>">        <title>My JSP 'index.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--><script type="text/javascript">function changeUrl(){tagform=document.forms[0];   //获取第一个form保单tagform.action="reg!registe.action?msg=qwe";tagform.submit();}</script>  </head>    <body>    <!-- 感叹号说明调用的是哪个方法,格式是actionName!methodName.action  -->  <form action="test!login.action" method="post">  username:<input type="text" name="username" /><br/>  password:<input type="password" name="password"/><br/>  <input type="submit" value="submit"/>   <input type="button" value="registe" onclick="changeUrl()"/>  </form>  </body></html>

UserAction代码：

package com.itany.action;import javax.servlet.http.HttpServletRequest;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionSupport;public class UserAction extends ActionSupport {private String msg;public String getMsg() {return msg;}public void setMsg(String msg) {this.msg = msg;}/** * 动态方法调用 * <一句话功能简述> * <功能详细描述> * @return * @throws Exception * @see [类、类#方法、类#成员] */public String login() throws Exception{System.out.println("动态方法调用");HttpServletRequest request=ServletActionContext.getRequest();String username=request.getParameter("username");String password=request.getParameter("password");if("qwe".equals(username)&&"qwe".equals(password)){msg="登录成功，欢迎"+username;return SUCCESS;}else{msg="没有"+username+"用户名信息！";return ERROR;}}public String registe() throws Exception{System.out.println("注册方法调用。。。。。。");HttpServletRequest request=ServletActionContext.getRequest();msg+="注册成功！";return SUCCESS;}}

0 0