struts2-6-登录注册校验(模型驱动)

Posted 2020-08-12

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一：用户封装到JavaBean中-->nuc.sw.vo-->User.java

 1 package nuc.sw.vo;
 2 
 3 public class User {
 4     private String username;
 5     private String password;
 6     public String getUsername() {
 7         return username;
 8     }
 9     public void setUsername(String username) {
10         this.username = username;
11     }
12     public String getPassword() {
13         return password;
14     }
15     public void setPassword(String password) {
16         this.password = password;
17     }
18 }

二：修改LoginRegAction.java 实例化模型User类，而且无set,get方法；

登录和注册方法要分开相对应

 1 package nuc.sw.action;
 2 
 3 import com.opensymphony.xwork2.ActionContext;
 4 import com.opensymphony.xwork2.ActionSupport;
 5 import com.opensymphony.xwork2.ModelDriven;
 6 
 7 import nuc.sw.vo.User;
 8 
 9 public class LoginRegAction extends ActionSupport implements ModelDriven<User>{

   //实例化模型类
10     private User user=new User();
11 
12 //contextPath server.xml
13     //必须实现 getModel()方法
14     public User getModel() {
15         return user;
16     };
17 //action    
18     
19     public String RegisterMethod() throws Exception {
20 //    public String LoginMethod() throws Exception {
21         // TODO Auto-generated method stub
22         //注册逻辑
23         if(user.getUsername().equals("张丹")&&user.getPassword().equals("123")){
24             ActionContext.getContext().getSession().put("registerUser",user.getUsername());
25             ActionContext.getContext().getSession().put("registerPass",user.getPassword());
26             return SUCCESS;
27         }
28         else{
29             
30             ActionContext.getContext().put("error", "用户名或者密码错误");
31             return ERROR;
32         }
33         
34     }
35         public String LoginMethod() throws Exception {
36             // TODO Auto-generated method stub
37             //登录逻辑
38             if(user.getUsername().equals("张丹")&&user.getPassword().equals("123")){
39                 ActionContext.getContext().getSession().put("loginUser",user.getUsername());
40                 ActionContext.getContext().getSession().put("loginPass",user.getPassword());
41                 return SUCCESS;
42             }
43             else{
44                 
45                 ActionContext.getContext().put("error", "用户名或者密码错误");
46                 return ERROR;
47             }
48             
49         }
50     @Override
51     public void validate() {
52         // TODO Auto-generated method stub
53         if(user.getUsername()==null||user.getUsername().trim().equals(""))
54             this.addFieldError("usernameError", "<font color=‘red‘>用户名不能为空</font>");
55         if(user.getPassword()==null||user.getPassword().trim().equals(""))
56             this.addFieldError("passwordError", "<font color=‘red‘>密码不能为空</font>");
57         
58     }
59 }

三：修改struts.xml -->action的method要分别对应

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE struts PUBLIC
 3     "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
 4     "http://struts.apache.org/dtds/struts-2.3.dtd">
 5 
 6 <struts>
 7  <constant name="struts.devMode" value="true" />
 8  <constant name="struts.enable.DynamicMethodInvocation" value="true"></constant>
 9  <package name="default" namespace="/" extends="struts-default">
10     <action name="LoginReg"  method="LoginMethod" class="nuc.sw.action.LoginRegAction">
11          <result name="success">/welcome.jsp</result>
12          <result name="error">/login.jsp</result>
13          <result name="input">/login.jsp</result>
14      </action>
15      <action name="RegisterReg"  method="RegisterMethod"  class="nuc.sw.action.LoginRegAction">
16          <result name="success">/register.jsp</result>
17          <result name="error">/login.jsp</result>
18          <result name="input">/login.jsp</result>
19      </action>
20  </package>
21     <!-- Add packages here -->
22 </struts>

四：修改login.jsp-->form属性action-->添加按钮的事件-->实现相对应的onclick（）方法

 1 <%@ page language="java" contentType="text/html; charset=utf-8"
 2     pageEncoding="utf-8"%>
 3 <%@ taglib prefix="s" uri="/struts-tags"%>
 4 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 5 <html>
 6 <head>
 7 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 8 <title>登录页面</title>
 9 </head>
10 <script>
11    function login(){
12        targetForm=document.forms[0];
13        targetForm.action="LoginReg!LoginMethod";
14        targetForm.submit();
15    }
16    function register(){
17        targetForm=document.forms[0];
18        targetForm.action="RegisterReg!RegisterMethod";
19        targetForm.submit();
20    }
21 </script>
22 <body>
23  <s:fielderror escape="false"></s:fielderror>
24  <font color="red">${requestScope.error}</font>
25  <form action="actionName!methodName" method="post" >
26   用户名：<input type="text" name="username"><br>
27   密码:<input type="text" name="password"><br>
28  <input type="button" value="登录" onclick="login()">
29  <input type="button" value="注册" onclick="register()">
30  </form>
31 </body>
32 </html>

五：动态方法的调用

1 <constant name="struts.enable.DynamicMethodInvocation" value="true"></constant>

六：register.jsp

 1 <%@ page language="java" contentType="text/html; charset=utf-8"
 2     pageEncoding="utf-8"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 7 <title>Insert title here</title>
 8 </head>
 9 <body>
10 欢迎${sessionScope.registerUser}注册，请<a href="">查看详情</a>
11 </body>
12 </html>