• 2_struts2_简单用户登录的实现


    一、struts2简单登录的实现

      1.1新建一个web项目

      1.2导入所需jar包

      1.3在web.xml配置文件中配置struts过滤器  

    <?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_3_0.xsd" id="WebApp_ID" version="3.0">
      <display-name>1_struts_hello</display-name>
      <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
      </welcome-file-list>
      <filter>
          <filter-name>struts2</filter-name>
          <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
      </filter>
      <filter-mapping>
          <filter-name>struts2</filter-name>
          <url-pattern>*.action</url-pattern>
      </filter-mapping>
    </web-app>

      1.4编写处理类(action)  

    package edu.aeon.struts2.action;
    
    public class LogonAction {
        private String username;
        private String pw;
        
        public String getUsername() {
            return username;
        }
    
        public void setUsername(String username) {
            this.username = username;
        }
    
        public String getPw() {
            return pw;
        }
    
        public void setPw(String pw) {
            this.pw = pw;
        }
    
        public String execute(){
            if(username.equals("aeon")&&pw.equals("aeon")){
                System.out.println("logonSuccess...");
                return "logonSuccess";
            }else{
                System.out.println("logonSuccessFailed...");
                return "logonFailed";
            }
        }
    }

       1.5在struts.xml文件中配置提交到处理类处理方法的的映射  

    <?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>
        <package name="default" namespace="/" extends="struts-default">
            <action name="logonAction" class="edu.aeon.struts2.action.LogonAction">
                <result name="logonSuccess">/index.jsp</result>
                <result name="logonFailed">/logon.jsp</result>
            </action>
        </package>
    </struts>

      1.6登录页面  

    <%@ 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>登录界面</title>
    </head>
    <body>
        <form action="logonAction.action">
        用户名:<input name="username" type="text" /><br>
        密码:<input name="pw" type="password" /><br>
        <button type="submit">登录</button>
        </form>
    </body>
    </html>

      1.7登录成功显示界面  

    <%@ 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>登录成功界面</title>
    </head>
    <body>
    ${username},恭喜您登录成功!
    </body>
    </html>

      1.8测试

        1.8.1用户登录界面

        

        1.8.2输入非正确密码后结果会跳转到上面登录界面

        1.8.3输入正确密码后结果界面截图

         

     

        

          

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  • 原文地址:https://www.cnblogs.com/aeon/p/10231277.html
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