62 getproperty对象
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62 getproperty对象
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定義一個login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?mypass=999999" 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>user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;}}定義一個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> <!-- 通過url傳參數給屬性賦值--> <jsp:setProperty name="myUsers" property="username"/> <jsp:setProperty name="myUsers" property="password" param="mypass"/> <!-- 使用getproperty獲取密碼 --> 賬號:<jsp:getProperty name="myUsers" property="username"/> 密碼:<jsp:getProperty name="myUsers" property="password" /> </body> </html>運行結果
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