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61setproperty对象

發(fā)布時間：2023/12/10 编程问答 23 豆豆

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建立一個users類

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;}}

建立一個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>用戶登錄</h1> <hr> <form action="dologind.jsp" name="loginForm" method="post"> <table> <tr> <td>用戶名:</td> <td><input type="text" name="username"/></td> </tr> <tr> <td>密碼:</td> <td><input type="password" name="password"/></td> </tr> <tr> <td colspan="2"><input type="submit" value="登錄"></td> </tr> </table> </body> </html>

建立一個dologind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> <jsp:useBean id="myUsers" class="srever.Users" scope="page"/> <h1>setproperty</h1><br>  <jsp:setProperty name="myUsers" property="*"/> 用戶名:<%=myUsers.getUsername() %><br> 密碼:<%=myUsers.getPassword() %><br> </body> </html>

運行結(jié)果

建立一個dologin的jsp頁面

<%@ 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>  <jsp:setProperty name="myUsers" property="username"/> 用戶名:<%=myUsers.getUsername() %><br> 密碼:<%=myUsers.getPassword() %><br> </body> </html>

運行結(jié)果

建立一個dologind的jsp頁面

<%@ 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>  <jsp:setProperty name="myUsers" property="username" value="list"/> <jsp:setProperty name="myUsers" property="password" value="888888"/> 用戶名:<%=myUsers.getUsername() %><br> 密碼:<%=myUsers.getPassword() %><br> </body> </html>

運行結(jié)果

修改文件logind的jsp

修改dologind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> <jsp:useBean id="myUsers" class="srever.Users" scope="page"/> <h1>setproperty</h1><br>  <jsp:setProperty name="myUsers" property="username"/> <jsp:setProperty name="myUsers" property="password" param="mypass"/> 用戶名:<%=myUsers.getUsername() %><br> 密碼:<%=myUsers.getPassword() %><br> </body> </html>

運行結(jié)果

總結(jié)

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