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61setproperty对象

2022-08-09 66

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简介： 61setproperty对象

 package srever;
 public class Users {
     private String username;
     private String password;
     public Users() {
     }
     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;
     }
 }
 建立一个logind的jsp<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
 <!DOCTYPE html>
 <html>
 <head>
 <meta charset="ISO-8859-1">
 <title>Insert title here</title>
 </head>
 <body>
 <h1>用户登录</h1>
 <hr>
 <form action="dologind.jsp" name="loginForm" method="post">
 <table>
 <tr>
 <td>用户名:</td>
 <td><input type="text" name="username"/></td>
 </tr>
 <tr>
 <td>密码:</td>
 <td><input type="password" name="password"/></td>
 </tr>
 <tr>
 <td colspan="2"><input type="submit" value="登录"></td>
 </tr>
 </table>
 </body>
 </html>

<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
 <!DOCTYPE html>
 <html>
 <head>
 <meta charset="ISO-8859-1">
 <title>Insert title here</title>
 </head>
 <body>
 <jsp:useBean id="myUsers" class="srever.Users" scope="page"/>
 <h1>setproperty</h1><br>
 <!-- 更具表单匹配部分的属性 -->
 <jsp:setProperty name="myUsers" property="username"/>
 用户名:<%=myUsers.getUsername() %><br>
 密码:<%=myUsers.getPassword() %><br>
 </body>
 </html>

<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
 <!DOCTYPE html>
 <html>
 <head>
 <meta charset="ISO-8859-1">
 <title>Insert title here</title>
 </head>
 <body>
 <jsp:useBean id="myUsers" class="srever.Users" scope="page"/>
 <h1>setproperty</h1><br>
 <!-- 通过手工赋值给属性-->
 <jsp:setProperty name="myUsers" property="username" value="list"/>
 <jsp:setProperty name="myUsers" property="password" value="888888"/>
 用户名:<%=myUsers.getUsername() %><br>
 密码:<%=myUsers.getPassword() %><br>
 </body>
 </html>

%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
 <!DOCTYPE html>
 <html>
 <head>
 <meta charset="ISO-8859-1">
 <title>Insert title here</title>
 </head>
 <body>
 <jsp:useBean id="myUsers" class="srever.Users" scope="page"/>
 <h1>setproperty</h1><br>
 <!-- 通过url传参数给属性赋值-->
 <jsp:setProperty name="myUsers" property="username"/>
 <jsp:setProperty name="myUsers" property="password" param="mypass"/>
 用户名:<%=myUsers.getUsername() %><br>
 密码:<%=myUsers.getPassword() %><br>
 </body>
 </html>

61setproperty对象

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