struts开发简易版（只用struts2）

来源：互联网发布：采样率转换算法编辑：程序博客网时间：2024/06/14 23:40

这是我写的struts2开发的登陆小项目简单版本还有一个增强版需要的可以看我的博客（struts开发增强版）适合初学者
开发环境：eclipse+jdk1.7+tomcat7+utf-8
下面是我的结构图
这里写图片描述
接下来是jar包

开始写代码：index.jsp代码

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%>   <!-- 引入struts的标签库--><%@ taglib uri="/struts-tags" prefix="s"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>登录</title></head><body>    <form action="index">        用户名：<input type="text"  name="username"><br>         密     码：<input type="password"  name="password"><br>         <input type="submit" value="ok">    </form></body></html>

web.xml代码

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">  <display-name>Demo</display-name>  <welcome-file-list>          <welcome-file>index.jsp</welcome-file>      </welcome-file-list>      <filter>          <!-- 配置Struts2核心Filter的名字 -->          <filter-name>struts2</filter-name>          <!-- 配置Struts2核心Filter的实现类 -->          <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>      </filter>      <!-- 配置Filter拦截的URL -->    <filter-mapping>          <!-- 配置Struts2的核心FilterDispatcher拦截所有用户请求 -->          <filter-name>struts2</filter-name>        <url-pattern>/*</url-pattern>      </filter-mapping></web-app>

WebContent/jsp文件下有success.jsp文件代码如下

<%@ page language="java" contentType="text/html; charset=utf-8"    pageEncoding="utf-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>Insert title here</title></head><body>    this is login.jsp</body></html>

struts.xml代码

<?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>    <!-- 定义逻辑视图与物理视图之间的联系 -->    <package name="trio" extends="struts-default" namespace="/">        <action name="index" class="com.struts.trio.HelloStrutsAction">            <result name="success">/jsp/success.jsp</result>            <result name="failure">/jsp/failure.jsp</result>        </action>    </package>    <!-- end --></struts>

HelloStrutsAction代码

package com.struts.trio;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;public class HelloStrutsAction extends ActionSupport {    //定义请求参数的 username 和password    //与前台jsp中表单中的name属性相同    private String username;    private String password;    public String getUsername() {        return username;    }    public void setUsername(String username) {        this.username = username;    }    public String getPassword() {        return password;    }    public void setPassword(String password) {        this.password = password;    }    @Override    public String execute() throws Exception {        // TODO Auto-generated method stub        String userName=this.getUsername();        String userPassword=this.getPassword();        if(userName.equals("admin")&&userPassword.equals("123456")){            ActionContext.getContext().getSession()                .put("user", userName); //用户名存储在 session 用于返回界面显示            return "success";        }        return "failure";    }}

按以上步骤只要jar包正确基本无问题（已测试过）

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