用戶登錄注冊模板進階版 傳送門
用戶登錄注冊模板基礎版
登錄：當用戶登錄成功時，跳轉到personCenter.jsp，當用戶登錄失敗時，跳轉到login.jsp並給出提示
注冊：當用戶注冊成功時，跳轉到login.jsp，當用戶注冊失敗時，跳轉到register.jsp並給出提示
personCenter.jsp展示用戶信息
用戶登錄注冊模板基礎版 目錄結構【用戶登錄_02版】
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <a href="login.jsp">登錄</a> <a href="register.jsp">注冊</a> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% Object msg = request.getAttribute("message"); if(msg!=null) out.println(msg); %> 登錄<hr> <form action="login_do.jsp" methon="post"> 用戶名：<input type="text" name="username" /><br/> 密碼 ：<input type="password" name="password" /><br/> <input type="submit" value="登錄"/> </form> </body> </html>
<%@page import="com.Gary.util.DBUtil" %> <%@page import="com.Gary.model.User" %> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% String username = request.getParameter("username"); String password = request.getParameter("password"); User user = DBUtil.verifyAccount(username,password); if(user==null){ // out.println("登錄失敗，用戶名或密碼錯誤"); request.setAttribute("message","登錄失敗，用戶名或密碼錯誤"); request.getRequestDispatcher("login.jsp").forward(request,response); }else{ // out.println("登錄成功"); //登錄請求的轉發,將數據傳遞給personCenter.jsp頁面 request.setAttribute("user", user); request.getRequestDispatcher("personCenter.jsp").forward(request,response); } %> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% Object msg = request.getAttribute("message"); if(msg!=null) out.println(msg); %> <form action="register_do.jsp" methon="post"> 用戶名：<input type="text" name="username" /><br/> 密碼： <input type="password" name="password" /><br/> 年齡： <input type="text" name="age" /><br/> 性別：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/> <input type="submit" value="注冊"/> </form> </body> </html>
<%@ page import="com.Gary.util.DBUtil" %> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% String username = request.getParameter("username"); String password = request.getParameter("password"); int age = Integer.parseInt(request.getParameter("age")); String sex = request.getParameter("sex"); boolean isSuccess = DBUtil.addUser(username,password,age,sex); //使用請求轉發 if(isSuccess){ request.setAttribute("message", "注冊成功，請登錄"); //通過getRequestDispatcher傳遞路徑將請求轉發給login.jsp request.getRequestDispatcher("login.jsp").forward(request,response); }else{ request.setAttribute("message", "注冊失敗，用戶名重復"); //通過getRequestDispatcher傳遞路徑將請求轉發給login.jsp request.getRequestDispatcher("register.jsp").forward(request,response); } // if(isSuccess){ // out.println(username); // out.println("<font color='green'>注冊成功</font>"); // }else{ // out.println(username); // out.println("<font color='red'>注冊失敗</font>"); // } %> </body> </html>
<%@ page import="com.Gary.model.User" %> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% User user = (User)request.getAttribute("user"); %> 用戶名：<%=user.getUsername()%><br/> 年齡：<%=user.getAge()%><br/> 性別：<%=user.getSex()%><br/> </body> </html>
package com.Gary.model; public class User { private String username; private String password; private int age; private String sex; public User(String username, String password, int age, String sex) { super(); this.username = username; this.password = password; this.age = age; this.sex = sex; } 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; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } }
package com.Gary.util; import java.util.HashMap; import java.util.Map; import com.Gary.model.User; public class DBUtil { private static Map<String ,User>db = new HashMap<String,User>(); public static boolean addUser(String username,String password,int age,String sex) { //TODO if(db.containsKey(username)) { return false; }else { User user=new User(username,password,age,sex); db.put(username, user); return true; } } //賬號校驗 public static User verifyAccount(String username,String password) { if(db.containsKey(username)) { User user = db.get(username); if(user.getPassword().equals(password)) { return user; }else { return null; } } return null; } }
用戶注冊_01版
當用戶點擊主頁面注冊時跳轉到register.jsp頁面，用戶輸入完表單后由register_do.jsp頁面進行處理，戶數據模型驅動User,java和DBUtild.java中對數據進行本地處理
DBUtild.java對用戶ID進行同名檢測，用戶注冊成功顯示綠色提示信息，用戶注冊失敗顯示紅色提示信息
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <a>登錄</a> <a href="register.jsp">注冊</a> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <form action="register_do.jsp" methon="post"> 用戶名：<input type="text" name="username" /><br/> 密碼： <input type="password" name="password" /><br/> 年齡： <input type="text" name="age" /><br/> 性別：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/> <input type="submit" value="注冊"/> </form> </body> </html>
<%@ page import="com.Gary.util.DBUtil" %> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% String username = request.getParameter("username"); String password = request.getParameter("password"); int age = Integer.parseInt(request.getParameter("age")); String sex = request.getParameter("sex"); boolean isSuccess = DBUtil.addUser(username,password,age,sex); if(isSuccess){ out.println(username); out.println("<font color='green'>注冊成功</font>"); }else{ out.println(username); out.println("<font color='red'>注冊失敗</font>"); } %> </body> </html>
package com.Gary.model; public class User { private String username; private String password; private int age; private String sex; public User(String username, String password, int age, String sex) { super(); this.username = username; this.password = password; this.age = age; this.sex = sex; } 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; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } }
package com.Gary.util; import java.util.HashMap; import java.util.Map; import com.Gary.model.User; public class DBUtil { private static Map<String ,User>db = new HashMap<String,User>(); public static boolean addUser(String username,String password,int age,String sex) { //TODO if(db.containsKey(username)) { return false; }else { User user=new User(username,password,age,sex); db.put(username, user); return true; } } }
開發注冊界面
表單
用戶表單信息注冊完畢后提交表單給register_do.jsp
<form action="register_do.jsp" methon="post"> 用戶名：<input type="text" name="username" /><br/> 密碼： <input type="password" name="password" /><br/> 年齡： <input type="text" name="age" /><br/> 性別：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/> <input type="submit" value="注冊"/> </form>
戶數據模型驅動User,java存儲用戶信息，DBUtil.java運用字典集對數據進行本地存儲
private static Map<String ,User>db = new HashMap<String,User>();
通過DBUtil.java中的addUser()方法對用戶進行本地注冊，返回bool值，當用戶注冊ID相同時返回false，否則返回true
if(db.containsKey(username)) { return false; }else { User user=new User(username,password,age,sex); db.put(username, user); return true; }
由register_do.java對用戶信息進行校驗
boolean isSuccess = DBUtil.addUser(username,password,age,sex); if(isSuccess){ out.println(username); out.println("<font color='green'>注冊成功</font>"); }else{ out.println(username); out.println("<font color='red'>注冊失敗</font>"); }
用戶注冊_02版
當用戶通過首頁直接進入login.jsp時，login.jsp頁面只顯示登錄字樣，用戶通過register.jsp進入login.jsp頁面時，跳轉到login.jsp並提示用戶注冊成功
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <a href="login.jsp">登錄</a> <a href="register.jsp">注冊</a> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% Object msg = request.getAttribute("message"); if(msg!=null) out.println(msg); %> 登錄<hr> <form action="" methon="post"> 用戶名：<input type="text" name="username" /><br/> 密碼 ：<input type="password" name="password" /><br/> <input type="submit" value="登錄"/> </form> </body> </html>
<%@ page import="com.Gary.util.DBUtil" %> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% String username = request.getParameter("username"); String password = request.getParameter("password"); int age = Integer.parseInt(request.getParameter("age")); String sex = request.getParameter("sex"); boolean isSuccess = DBUtil.addUser(username,password,age,sex); //使用請求轉發 if(isSuccess){ request.setAttribute("message", "注冊成功，請登錄"); //通過getRequestDispatcher傳遞路徑將請求轉發給login.jsp request.getRequestDispatcher("login.jsp").forward(request,response); } // if(isSuccess){ // out.println(username); // out.println("<font color='green'>注冊成功</font>"); // }else{ // out.println(username); // out.println("<font color='red'>注冊失敗</font>"); // } %> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <form action="register_do.jsp" methon="post"> 用戶名：<input type="text" name="username" /><br/> 密碼： <input type="password" name="password" /><br/> 年齡： <input type="text" name="age" /><br/> 性別：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/> <input type="submit" value="注冊"/> </form> </body> </html>
package com.Gary.model; public class User { private String username; private String password; private int age; private String sex; public User(String username, String password, int age, String sex) { super(); this.username = username; this.password = password; this.age = age; this.sex = sex; } 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; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } }
package com.Gary.util; import java.util.HashMap; import java.util.Map; import com.Gary.model.User; public class DBUtil { private static Map<String ,User>db = new HashMap<String,User>(); public static boolean addUser(String username,String password,int age,String sex) { //TODO if(db.containsKey(username)) { return false; }else { User user=new User(username,password,age,sex); db.put(username, user); return true; } } }
當登錄成功時，通過在register_do.jsp頁面中表單傳遞時進行轉發給login,jsp頁面【跳轉到login.jsp頁面】
boolean isSuccess = DBUtil.addUser(username,password,age,sex); //使用請求轉發 if(isSuccess){ request.setAttribute("message", "注冊成功，請登錄"); //通過getRequestDispatcher傳遞路徑將請求轉發給login.jsp request.getRequestDispatcher("login.jsp").forward(request,response); }
login,jsp頁面最開始時進行判斷是否由register.jsp傳遞過來信息
<% Object msg = request.getAttribute("message"); if(msg!=null) out.println(msg); %>
用戶登錄_01版
當用戶登錄后，login.jsp表單中的信息與數據庫中的賬號進行匹配，當用戶的賬號存在時且密碼輸入正確，提示用戶登錄成功，用戶名不存在或用戶名與賬號匹配錯誤時提示登錄失敗
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <a href="login.jsp">登錄</a> <a href="register.jsp">注冊</a> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% Object msg = request.getAttribute("message"); if(msg!=null) out.println(msg); %> 登錄<hr> <form action="login_do.jsp" methon="post"> 用戶名：<input type="text" name="username" /><br/> 密碼 ：<input type="password" name="password" /><br/> <input type="submit" value="登錄"/> </form> </body> </html>
<%@page import="com.Gary.util.DBUtil" %> <%@page import="com.Gary.model.User" %> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% String username = request.getParameter("username"); String password = request.getParameter("password"); User user = DBUtil.verifyAccount(username,password); if(user==null){ out.println("登錄失敗，用戶名或密碼錯誤"); }else{ out.println("登錄成功"); } %> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <form action="register_do.jsp" methon="post"> 用戶名：<input type="text" name="username" /><br/> 密碼： <input type="password" name="password" /><br/> 年齡： <input type="text" name="age" /><br/> 性別：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/> <input type="submit" value="注冊"/> </form> </body> </html>
<%@ page import="com.Gary.util.DBUtil" %> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% String username = request.getParameter("username"); String password = request.getParameter("password"); int age = Integer.parseInt(request.getParameter("age")); String sex = request.getParameter("sex"); boolean isSuccess = DBUtil.addUser(username,password,age,sex); //使用請求轉發 if(isSuccess){ request.setAttribute("message", "注冊成功，請登錄"); //通過getRequestDispatcher傳遞路徑將請求轉發給login.jsp request.getRequestDispatcher("login.jsp").forward(request,response); } // if(isSuccess){ // out.println(username); // out.println("<font color='green'>注冊成功</font>"); // }else{ // out.println(username); // out.println("<font color='red'>注冊失敗</font>"); // } %> </body> </html>
package com.Gary.model; public class User { private String username; private String password; private int age; private String sex; public User(String username, String password, int age, String sex) { super(); this.username = username; this.password = password; this.age = age; this.sex = sex; } 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; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } }
package com.Gary.util; import java.util.HashMap; import java.util.Map; import com.Gary.model.User; public class DBUtil { private static Map<String ,User>db = new HashMap<String,User>(); public static boolean addUser(String username,String password,int age,String sex) { //TODO if(db.containsKey(username)) { return false; }else { User user=new User(username,password,age,sex); db.put(username, user); return true; } } //賬號校驗 public static User verifyAccount(String username,String password) { if(db.containsKey(username)) { User user = db.get(username); if(user.getPassword().equals(password)) { return user; }else { return null; } } return null; } }
當用戶提交登錄信息時，由login_do處理用戶登錄的信息，
通過DBUtil.java中的verifyAccount()進行用戶校驗，當用戶名存在並密碼與用戶相匹配時返回true
public static User verifyAccount(String username,String password) { if(db.containsKey(username)) { User user = db.get(username); if(user.getPassword().equals(password)) { return user; }else { return null; } } return null; }
login_do.jsp中進行賬號校驗
User user = DBUtil.verifyAccount(username,password); if(user==null){ out.println("登錄失敗，用戶名或密碼錯誤"); }else{ out.println("登錄成功"); }
用戶登錄_02版
登錄：當用戶登錄成功時，跳轉到personCenter.jsp，當用戶登錄失敗時，跳轉到login.jsp並給出提示
注冊：當用戶注冊成功時，跳轉到login.jsp，當用戶注冊失敗時，跳轉到register.jsp並給出提示
personCenter.jsp展示用戶信息
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <a href="login.jsp">登錄</a> <a href="register.jsp">注冊</a> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% Object msg = request.getAttribute("message"); if(msg!=null) out.println(msg); %> 登錄<hr> <form action="login_do.jsp" methon="post"> 用戶名：<input type="text" name="username" /><br/> 密碼 ：<input type="password" name="password" /><br/> <input type="submit" value="登錄"/> </form> </body> </html>
<%@page import="com.Gary.util.DBUtil" %> <%@page import="com.Gary.model.User" %> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% String username = request.getParameter("username"); String password = request.getParameter("password"); User user = DBUtil.verifyAccount(username,password); if(user==null){ // out.println("登錄失敗，用戶名或密碼錯誤"); request.setAttribute("message","登錄失敗，用戶名或密碼錯誤"); request.getRequestDispatcher("login.jsp").forward(request,response); }else{ // out.println("登錄成功"); //登錄請求的轉發,將數據傳遞給personCenter.jsp頁面 request.setAttribute("user", user); request.getRequestDispatcher("personCenter.jsp").forward(request,response); } %> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% Object msg = request.getAttribute("message"); if(msg!=null) out.println(msg); %> <form action="register_do.jsp" methon="post"> 用戶名：<input type="text" name="username" /><br/> 密碼： <input type="password" name="password" /><br/> 年齡： <input type="text" name="age" /><br/> 性別：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/> <input type="submit" value="注冊"/> </form> </body> </html>
<%@ page import="com.Gary.util.DBUtil" %> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% String username = request.getParameter("username"); String password = request.getParameter("password"); int age = Integer.parseInt(request.getParameter("age")); String sex = request.getParameter("sex"); boolean isSuccess = DBUtil.addUser(username,password,age,sex); //使用請求轉發 if(isSuccess){ request.setAttribute("message", "注冊成功，請登錄"); //通過getRequestDispatcher傳遞路徑將請求轉發給login.jsp request.getRequestDispatcher("login.jsp").forward(request,response); }else{ request.setAttribute("message", "注冊失敗，用戶名重復"); //通過getRequestDispatcher傳遞路徑將請求轉發給login.jsp request.getRequestDispatcher("register.jsp").forward(request,response); } // if(isSuccess){ // out.println(username); // out.println("<font color='green'>注冊成功</font>"); // }else{ // out.println(username); // out.println("<font color='red'>注冊失敗</font>"); // } %> </body> </html>
<%@ page import="com.Gary.model.User" %> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% User user = (User)request.getAttribute("user"); %> 用戶名：<%=user.getUsername()%><br/> 年齡：<%=user.getAge()%><br/> 性別：<%=user.getSex()%><br/> </body> </html>
package com.Gary.model; public class User { private String username; private String password; private int age; private String sex; public User(String username, String password, int age, String sex) { super(); this.username = username; this.password = password; this.age = age; this.sex = sex; } 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; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } }
package com.Gary.model; public class User { private String username; private String password; private int age; private String sex; public User(String username, String password, int age, String sex) { super(); this.username = username; this.password = password; this.age = age; this.sex = sex; } 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; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } }
personCenter.jsp通過request內置對象得到用戶信息后輸出其信息
<% User user = (User)request.getAttribute("user"); %> 用戶名：<%=user.getUsername()%><br/> 年齡：<%=user.getAge()%><br/> 性別：<%=user.getSex()%><br/>
login_do.jsp處理用戶登錄成功時和登錄失敗時事件
<% String username = request.getParameter("username"); String password = request.getParameter("password"); User user = DBUtil.verifyAccount(username,password); if(user==null){ // out.println("登錄失敗，用戶名或密碼錯誤"); request.setAttribute("message","登錄失敗，用戶名或密碼錯誤"); request.getRequestDispatcher("login.jsp").forward(request,response); }else{ // out.println("登錄成功"); //登錄請求的轉發,將數據傳遞給personCenter.jsp頁面 request.setAttribute("user", user); request.getRequestDispatcher("personCenter.jsp").forward(request,response); } %>
register_do.jsp處理用戶注冊成功時和注冊失敗時事件
<% String username = request.getParameter("username"); String password = request.getParameter("password"); int age = Integer.parseInt(request.getParameter("age")); String sex = request.getParameter("sex"); boolean isSuccess = DBUtil.addUser(username,password,age,sex); //使用請求轉發 if(isSuccess){ request.setAttribute("message", "注冊成功，請登錄"); //通過getRequestDispatcher傳遞路徑將請求轉發給login.jsp request.getRequestDispatcher("login.jsp").forward(request,response); }else{ request.setAttribute("message", "注冊失敗，用戶名重復"); //通過getRequestDispatcher傳遞路徑將請求轉發給login.jsp request.getRequestDispatcher("register.jsp").forward(request,response); } // if(isSuccess){ // out.println(username); // out.println("<font color='green'>注冊成功</font>"); // }else{ // out.println(username); // out.println("<font color='red'>注冊失敗</font>"); // } %>