Spring5如何构建基于登录注册的完整功能模块？

2026-05-24 01:521阅读0评论SEO基础

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本文将分享Spring5实现登录注册功能的整体代码示例，供大家参考。主要内容包括：

准备：- 根据用户注册和登录需求，分析所需信息，包括： - 用户名（String） - 用户ID（Int） - 用户密码（String） - 用户状态（String）

代码示例：

java// 用户实体类public class User { private String username; private int userId; private String userPassword; private String userStatus;

// 省略getter和setter方法}

// 用户服务类public class UserService { public void register(User user) { // 注册逻辑 }

public User login(String username, String userPassword) { // 登录逻辑 return new User(); }}

// 用户控制器@RestControllerpublic class UserController { @Autowired private UserService userService;

@PostMapping(/register) public ResponseEntity register(@RequestBody User user) { userService.register(user); return ResponseEntity.ok(注册成功); }

@PostMapping(/login) public ResponseEntity login(@RequestParam String username, @RequestParam String userPassword) { User user=userService.login(username, userPassword); return ResponseEntity.ok(user); }}

以上代码展示了Spring5实现登录注册功能的基本框架，包括用户实体类、用户服务类和用户控制器。具体实现细节可根据实际需求进行调整。

本文实例为大家分享了Spring5实现登录注册功能的具体代码，供大家参考，具体内容如下

准备:

根据分析用户注册登录都需要的信息为
①username(String)
②userid(Int)
③userpassword(String)
④useremail(String)

1.生成数据库、表

2.编写实体类

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层中)

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="www.springframework.org/schema/beans" xmlns:xsi="www.w3.org/2001/XMLSchema-instance" xmlns:context="www.springframework.org/schema/context" xsi:schemaLocation="www.springframework.org/schema/beans www.springframework.org/schema/beans/spring-beans.xsd www.springframework.org/schema/context www.springframework.org/schema/context/spring-context.xsd">  <context:component-scan base-package="MyPackage"></context:component-scan>  <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>  <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">  <property name="dataSource" ref="dataSource"></property> </bean>  </beans>

4.编写Userdao(dao层)

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

UserDaoImpl类

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;//自动注入数据库 @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("注册成功:"+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.编写service层

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; //用户注册 public void Register(User user){ System.out.println("Service Register....."); userDao.Register(user); } //用户登录 public void Login(User user){ System.out.println("Service Login....."); User loginsuccess = userDao.login(user.getUserId()); if (loginsuccess!=null) System.out.println("登录成功"); else System.out.println("登录失败"); } }

6.测试

import MyPackage.pojo.User; import MyPackage.service.UserService; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class Test { //注册功能测试 @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")); } //登录功能测试 @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")); } }

运行截图

遇到的问题:

刚开始把bean1.xml配置文件直接是在src目录下生成的，所以当运行时，就会发现找不到xml文件
解决方法:

在main目录下新建一个resources文件，且把该文件变成Resources类型，然后把bean1.xml放入在这里就可以了。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持自由互联。

标签：基于 Spring5 实现登录注册