基于Spring5實現(xiàn)登錄注冊功能

更新時間：2022年09月06日 11:23:52 作者：用編程改改自己吧

這篇文章主要為大家詳細介紹了基于Spring5實現(xiàn)登錄注冊功能，文中示例代碼介紹的非常詳細，具有一定的參考價值，感興趣的小伙伴們可以參考一下

本文實例為大家分享了Spring5實現(xiàn)登錄注冊功能的具體代碼，供大家參考，具體內(nèi)容如下

準備:

根據(jù)分析用戶注冊登錄都需要的信息為
①username(String)
②userid(Int)
③userpassword(String)
④useremail(String)

1.生成數(shù)據(jù)庫、表

2.編寫實體類

import org.springframework.stereotype.Component;
@Component
public class User {
? ? private String UserName;
? ? private int UserId;
? ? private String UserPassWord;
? ? private String UserEmail;

? ? public User(String userName, int userId, String userPassWord, String userEmail) {
? ? ? ? UserName = userName;
? ? ? ? UserId = userId;
? ? ? ? UserPassWord = userPassWord;
? ? ? ? UserEmail = userEmail;
? ? }

? ? public User() {
? ? }

? ? public String getUserName() {
? ? ? ? return UserName;
? ? }

? ? public void setUserName(String userName) {
? ? ? ? UserName = userName;
? ? }

? ? public int getUserId() {
? ? ? ? return UserId;
? ? }

? ? public void setUserId(int userId) {
? ? ? ? UserId = userId;
? ? }

? ? public String getUserPassWord() {
? ? ? ? return UserPassWord;
? ? }

? ? public void setUserPassWord(String userPassWord) {
? ? ? ? UserPassWord = userPassWord;
? ? }

? ? public String getUserEmail() {
? ? ? ? return UserEmail;
? ? }

? ? public void setUserEmail(String userEmail) {
? ? ? ? UserEmail = userEmail;
? ? }
}

3.配置xml文件(jdbcTemplate注入到dao層中)

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
? ? ? ?xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
? ? ? ?xmlns:context="http://www.springframework.org/schema/context"
? ? ? ?xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">

? ? <!--掃描包-->
? ? <context:component-scan base-package="MyPackage"></context:component-scan>
? ? <!--數(shù)據(jù)庫連接池-->
? ? <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close">
? ? ? ? <property name="url" value="jdbc:mysql://localhost:3306/review"></property>
? ? ? ? <property name="username" value="root"></property>
? ? ? ? <property name="password" value="123456"></property>
? ? ? ? <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"></property>
? ? </bean>
? ? <!--配置JdbcTemplate對象，把數(shù)據(jù)庫dataSource注入進去-->
? ? <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
? ? ? ? <!--要把數(shù)據(jù)庫注入到JdbcTemplate對象中-->
? ? ? ? <property name="dataSource" ref="dataSource"></property>
? ? </bean>
? ? <!--到了這一步我們就連接好了數(shù)據(jù)庫了-->
</beans>

4.編寫Userdao(dao層)

import MyPackage.pojo.User;
import org.springframework.stereotype.Component;
@Component
public interface UserDao {
? ? void Register(User user);

? ? User login(Integer id);
}

UserDaoImpl類

ckage.dao;

import MyPackage.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Component;

@Component
public class UserDaoImpl implements UserDao{

? ? @Autowired
? ? JdbcTemplate jdbcTemplate;//自動注入數(shù)據(jù)庫

? ? @Override
? ? public void Register(User user) {
? ? ? ? String sql = "insert into t_user (`username`,`userid`,`userpassword`,`useremail`)" +
? ? ? ? ? ? ? ? "values(?,?,?,?)";
? ? ? ? Object[] args = {user.getUserName(), user.getUserId(), user.getUserPassWord(), user.getUserEmail()};
? ? ? ? int update = jdbcTemplate.update(sql,args);
? ? ? ? System.out.println("注冊成功:"+update);
? ? }

? ? @Override
? ? public User login(Integer id) {
? ? ? ? String sql = "select *from t_user where `userid`=?";
? ? ? ? User user1 = jdbcTemplate.queryForObject(sql, new BeanPropertyRowMapper<User>(User.class), id);
? ? ? ? return user1;
? ? }
}

5.編寫service層

import MyPackage.dao.UserDao;
import MyPackage.dao.UserDaoImpl;
import MyPackage.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service(value = "userService")
public class UserService {
? ? @Autowired
? ? public UserDao userDao;
? ? //用戶注冊
? ? public void Register(User user){
? ? ? ? System.out.println("Service Register.....");
? ? ? ? userDao.Register(user);
? ? }

? ? //用戶登錄
? ? public void Login(User user){
? ? ? ? System.out.println("Service Login.....");
? ? ? ? User loginsuccess = userDao.login(user.getUserId());
? ? ? ? if (loginsuccess!=null)
? ? ? ? ? ? System.out.println("登錄成功");
? ? ? ? else
? ? ? ? ? ? System.out.println("登錄失敗");
? ? }
}

6.測試

import MyPackage.pojo.User;
import MyPackage.service.UserService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
? ? //注冊功能測試
? ? @org.junit.Test
? ? public void testJdbcTemplate1(){
? ? ? ? ApplicationContext context = new ClassPathXmlApplicationContext("bean1.xml");
? ? ? ? UserService userService = (UserService) context.getBean("userService", UserService.class);
// ? ? ? ?userService.Register(new User("mary",2,"654321","654321@qq.com"));
? ? ? ? userService.Register(new User("lucy",1,"123456","123456@qq.com"));
? ? }
? ? //登錄功能測試
? ? @org.junit.Test
? ? public void testJdbcTemplate2() {
? ? ? ? ApplicationContext context = new ClassPathXmlApplicationContext("bean1.xml");
? ? ? ? UserService userService = (UserService) context.getBean("userService", UserService.class);
? ? ? ? userService.Login(new User("lucy",1,"123456","123456@qq.com"));
? ? }
}

運行截圖