用户登录注册模板进阶版　　传送门

用户登录注册模板基础版

　　登录：当用户登录成功时，跳转到personCenter.jsp，当用户登录失败时，跳转到login.jsp并给出提示

　　注册：当用户注册成功时，跳转到login.jsp，当用户注册失败时，跳转到register.jsp并给出提示

　　personCenter.jsp展示用户信息

　　用户登录注册模板基础版　　目录结构【用户登录_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">登录</a>

<a href="register.jsp">注册</a>

</body>

</html>

index.jsp

<%@ 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);

%>

登录<hr>

<form action="login_do.jsp" methon="post">

用户名：<input type="text" name="username" /><br/>

密码    ：<input type="password" name="password" /><br/>

<input type="submit" value="登录"/>

</form>

</body>

</html>

login.jsp

<%@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("登录失败，用户名或密码错误");

    request.setAttribute("message","登录失败，用户名或密码错误");

    request.getRequestDispatcher("login.jsp").forward(request,response);

}else{

//    out.println("登录成功");

    //登录请求的转发,将数据传递给personCenter.jsp页面

    request.setAttribute("user", user);

    request.getRequestDispatcher("personCenter.jsp").forward(request,response);

}

%>

</body>

</html>

login_do.jsp

<%@ 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">

用户名：<input type="text" name="username" /><br/>

密码：    <input type="password" name="password" /><br/>

年龄：    <input type="text" name="age" /><br/>

性别：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/>

<input type="submit" value="注册"/>

</form>

</body>

</html>

register.jsp

<%@ 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);

//使用请求转发

if(isSuccess){

    request.setAttribute("message", "注册成功，请登录");

    //通过getRequestDispatcher传递路径将请求转发给login.jsp

    request.getRequestDispatcher("login.jsp").forward(request,response);

}else{

    request.setAttribute("message", "注册失败，用户名重复");

    //通过getRequestDispatcher传递路径将请求转发给login.jsp

    request.getRequestDispatcher("register.jsp").forward(request,response);

}

// if(isSuccess){

//     out.println(username);

//      out.println("<font color='green'>注册成功</font>");

// }else{

//     out.println(username);

//     out.println("<font color='red'>注册失败</font>");

// }

%>

</body>

</html>

register_do.jsp

<%@ 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");

%>

用户名：<%=user.getUsername()%><br/>

年龄：<%=user.getAge()%><br/>

性别：<%=user.getSex()%><br/>

</body>

</html>

personCenter.jsp

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;

    }

}

User.java

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;

        }

    }

    //账号校验

    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;

    }

}

DBUtil.java

用户注册_01版

　　当用户点击主页面注册时跳转到register.jsp页面，用户输入完表单后由register_do.jsp页面进行处理，户数据模型驱动User,java和DBUtild.java中对数据进行本地处理

　　DBUtild.java对用户ID进行同名检测，用户注册成功显示绿色提示信息，用户注册失败显示红色提示信息

<%@ 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>登录</a>

<a href="register.jsp">注册</a>

</body>

</html>

index.jsp

<%@ 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">

用户名：<input type="text" name="username" /><br/>

密码：    <input type="password" name="password" /><br/>

年龄：    <input type="text" name="age" /><br/>

性别：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/>

<input type="submit" value="注册"/>

</form>

</body>

</html>

register.jsp

<%@ 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'>注册成功</font>");

}else{

    out.println(username);

    out.println("<font color='red'>注册失败</font>");

}

%>

</body>

</html>

register_do.jsp

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;

    }

}

User.java

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;

        }

    }

}

DBUtil.java

　　

　　开发注册界面

　　表单

　　

　　用户表单信息注册完毕后提交表单给register_do.jsp

<form action="register_do.jsp" methon="post">

用户名：<input type="text" name="username" /><br/>

密码：    <input type="password" name="password" /><br/>

年龄：    <input type="text" name="age" /><br/>

性别：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/>

<input type="submit" value="注册"/>

</form>

　　户数据模型驱动User,java存储用户信息，DBUtil.java运用字典集对数据进行本地存储

    private static Map<String ,User>db = new HashMap<String,User>();

　　通过DBUtil.java中的addUser()方法对用户进行本地注册，返回bool值，当用户注册ID相同时返回false，否则返回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对用户信息进行校验

boolean isSuccess = DBUtil.addUser(username,password,age,sex);

if(isSuccess){

    out.println(username);

     out.println("<font color='green'>注册成功</font>");

}else{

    out.println(username);

    out.println("<font color='red'>注册失败</font>");

}

用户注册_02版

　　当用户通过首页直接进入login.jsp时，login.jsp页面只显示登录字样，用户通过register.jsp进入login.jsp页面时，跳转到login.jsp并提示用户注册成功

<%@ 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">登录</a>

<a href="register.jsp">注册</a>

</body>

</html>

index.jsp

<%@ 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);

%>

登录<hr>

<form action="" methon="post">

用户名：<input type="text" name="username" /><br/>

密码    ：<input type="password" name="password" /><br/>

<input type="submit" value="登录"/>

</form>

</body>

</html>

login.jsp

<%@ 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);

//使用请求转发

if(isSuccess){

    request.setAttribute("message", "注册成功，请登录");

    //通过getRequestDispatcher传递路径将请求转发给login.jsp

    request.getRequestDispatcher("login.jsp").forward(request,response);

}

// if(isSuccess){

//     out.println(username);

//      out.println("<font color='green'>注册成功</font>");

// }else{

//     out.println(username);

//     out.println("<font color='red'>注册失败</font>");

// }

%>

</body>

</html>

register_do.jsp

<%@ 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">

用户名：<input type="text" name="username" /><br/>

密码：    <input type="password" name="password" /><br/>

年龄：    <input type="text" name="age" /><br/>

性别：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/>

<input type="submit" value="注册"/>

</form>

</body>

</html>

register.jsp

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;

    }

}

User.java

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;

        }

    }

}

DBUtil.Java

　　当登录成功时，通过在register_do.jsp页面中表单传递时进行转发给login,jsp页面【跳转到login.jsp页面】

boolean isSuccess = DBUtil.addUser(username,password,age,sex);

//使用请求转发

if(isSuccess){

    request.setAttribute("message", "注册成功，请登录");

    //通过getRequestDispatcher传递路径将请求转发给login.jsp

    request.getRequestDispatcher("login.jsp").forward(request,response);

}

　　

　　login,jsp页面最开始时进行判断是否由register.jsp传递过来信息

<%

Object msg = request.getAttribute("message");

if(msg!=null)

    out.println(msg);

%>

用户登录_01版

　　当用户登录后，login.jsp表单中的信息与数据库中的账号进行匹配，当用户的账号存在时且密码输入正确，提示用户登录成功，用户名不存在或用户名与账号匹配错误时提示登录失败

<%@ 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">登录</a>

<a href="register.jsp">注册</a>

</body>

</html>

index.jsp

<%@ 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);

%>

登录<hr>

<form action="login_do.jsp" methon="post">

用户名：<input type="text" name="username" /><br/>

密码    ：<input type="password" name="password" /><br/>

<input type="submit" value="登录"/>

</form>

</body>

</html>

login.jsp

<%@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("登录失败，用户名或密码错误");

}else{

    out.println("登录成功");

}

%>

</body>

</html>

login_do.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">

用户名：<input type="text" name="username" /><br/>

密码：    <input type="password" name="password" /><br/>

年龄：    <input type="text" name="age" /><br/>

性别：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/>

<input type="submit" value="注册"/>

</form>

</body>

</html>

Vregister.jsp

<%@ 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);

//使用请求转发

if(isSuccess){

    request.setAttribute("message", "注册成功，请登录");

    //通过getRequestDispatcher传递路径将请求转发给login.jsp

    request.getRequestDispatcher("login.jsp").forward(request,response);

}

// if(isSuccess){

//     out.println(username);

//      out.println("<font color='green'>注册成功</font>");

// }else{

//     out.println(username);

//     out.println("<font color='red'>注册失败</font>");

// }

%>

</body>

</html>

register_do.jsp

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;

    }

}

User.java

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;

        }

    }

    //账号校验

    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;

    }

}

DBUtil.java

　　当用户提交登录信息时，由login_do处理用户登录的信息，

　　通过DBUtil.java中的verifyAccount()进行用户校验，当用户名存在并密码与用户相匹配时返回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中进行账号校验

User user = DBUtil.verifyAccount(username,password);

if(user==null){

    out.println("登录失败，用户名或密码错误");

}else{

    out.println("登录成功");

}

用户登录_02版

　　登录：当用户登录成功时，跳转到personCenter.jsp，当用户登录失败时，跳转到login.jsp并给出提示

　　注册：当用户注册成功时，跳转到login.jsp，当用户注册失败时，跳转到register.jsp并给出提示

　　personCenter.jsp展示用户信息

　　

<%@ 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">登录</a>

<a href="register.jsp">注册</a>

</body>

</html>

index.jsp

<%@ 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);

%>

登录<hr>

<form action="login_do.jsp" methon="post">

用户名：<input type="text" name="username" /><br/>

密码    ：<input type="password" name="password" /><br/>

<input type="submit" value="登录"/>

</form>

</body>

</html>

login.jsp

<%@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("登录失败，用户名或密码错误");

    request.setAttribute("message","登录失败，用户名或密码错误");

    request.getRequestDispatcher("login.jsp").forward(request,response);

}else{

//    out.println("登录成功");

    //登录请求的转发,将数据传递给personCenter.jsp页面

    request.setAttribute("user", user);

    request.getRequestDispatcher("personCenter.jsp").forward(request,response);

}

%>

</body>

</html>

login_do.jsp

<%@ 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">

用户名：<input type="text" name="username" /><br/>

密码：    <input type="password" name="password" /><br/>

年龄：    <input type="text" name="age" /><br/>

性别：男<input type="radio" name="sex" value="男" />女<input type="radio" name="sex" value="女"/><br/>

<input type="submit" value="注册"/>

</form>

</body>

</html>

register.jsp

<%@ 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);

//使用请求转发

if(isSuccess){

    request.setAttribute("message", "注册成功，请登录");

    //通过getRequestDispatcher传递路径将请求转发给login.jsp

    request.getRequestDispatcher("login.jsp").forward(request,response);

}else{

    request.setAttribute("message", "注册失败，用户名重复");

    //通过getRequestDispatcher传递路径将请求转发给login.jsp

    request.getRequestDispatcher("register.jsp").forward(request,response);

}

// if(isSuccess){

//     out.println(username);

//      out.println("<font color='green'>注册成功</font>");

// }else{

//     out.println(username);

//     out.println("<font color='red'>注册失败</font>");

// }

%>

</body>

</html>

register_do.jsp

<%@ 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");

%>

用户名：<%=user.getUsername()%><br/>

年龄：<%=user.getAge()%><br/>

性别：<%=user.getSex()%><br/>

</body>

</html>

personCenter.jsp

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;

    }

}

User.java

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;

    }

}

DBUtil.java

　　personCenter.jsp通过request内置对象得到用户信息后输出其信息

<%

User user = (User)request.getAttribute("user");

%>

用户名：<%=user.getUsername()%><br/>

年龄：<%=user.getAge()%><br/>

性别：<%=user.getSex()%><br/>

　　login_do.jsp处理用户登录成功时和登录失败时事件

<%

String username = request.getParameter("username");

String password = request.getParameter("password");

User user = DBUtil.verifyAccount(username,password);

if(user==null){

//    out.println("登录失败，用户名或密码错误");

    request.setAttribute("message","登录失败，用户名或密码错误");

    request.getRequestDispatcher("login.jsp").forward(request,response);

}else{

//    out.println("登录成功");

    //登录请求的转发,将数据传递给personCenter.jsp页面

    request.setAttribute("user", user);

    request.getRequestDispatcher("personCenter.jsp").forward(request,response);

}

%>

　　register_do.jsp处理用户注册成功时和注册失败时事件

<%

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);

//使用请求转发

if(isSuccess){

    request.setAttribute("message", "注册成功，请登录");

    //通过getRequestDispatcher传递路径将请求转发给login.jsp

    request.getRequestDispatcher("login.jsp").forward(request,response);

}else{

    request.setAttribute("message", "注册失败，用户名重复");

    //通过getRequestDispatcher传递路径将请求转发给login.jsp

    request.getRequestDispatcher("register.jsp").forward(request,response);

}

// if(isSuccess){

//     out.println(username);

//      out.println("<font color='green'>注册成功</font>");

// }else{

//     out.println(username);

//     out.println("<font color='red'>注册失败</font>");

// }

%>

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