1.创建web项目,添加struts2支持的类库,在web.xml中配置struts2过滤器。
2.创建名为UserAction的Action对象,并在其中编写execute()方法,代码如下所示:
package com.wh.Demo;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction extends ActionSupport {
private String info;public String getInfo() {
return info; }public void setInfo(String info) {
this.info = info; }@Override
public String execute() throws Exception { if ("".equals(info)) { return "error"; } else { return "success"; } }}3.在源文件夹中创建Struts.xml配置文件,在其中配置UserAction,代码如下:
<?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><!-- 动态方法调用 --><constant name="struts.enable.DynamicMethodInvocation" value="true" /> <package name="default" extends="struts-default" namespace="/user"> <action name="userAction" class="com.wh.Demo.UserAction"> <result name="success">success.jsp</result> <result name="error">error.jsp</result> </action></package></struts>4.创建index.jsp主页面
<body>
<form id="form1" name="form1" method="post" action="userAction.action"> 输入信息:<input type="text" name="info" id="username" /> <input type="submit" name="submit" value="提交"> </form></body>5.创建success.jsp页面
<%@taglib prefix="s" uri="/struts-tags" %>
Successful!!!
<s:property value="info"/>
6.创建error页面
<h1>404找不到页面</h1>