SpringBoot+MyBatis实现用户登录功能

整个项目的结构

创建表结构

CREATE TABLE `user` (
  `Id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `UserTypeID` int(11) NOT NULL COMMENT 'UserType表主键',
  `Code` varchar(50) NOT NULL COMMENT '用户代码（唯一）',
  `Name` varchar(255) NOT NULL COMMENT '用户名称',
  `Password` varchar(50) NOT NULL COMMENT '用户密码（加密）',
  `Iphone` varchar(50) DEFAULT NULL COMMENT '用户联系方式（可用来登录）',
  PRIMARY KEY (`Id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC;

Pom文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.3</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.11</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.23</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

</project>

Util包下Result类返回结果统一封装

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Result {
    
    
    private int code;
    private String msg;
    private Long count;
    private Object data;
}

Controller层

@RestController
@RequestMapping("/prosys/user")
public class UserController {
    
    

    @Autowired
    private UserService userService;
    //用户登录方法
    @PostMapping("/login")
    public Result login(@RequestBody Map map) {
    
    
        Result result = new Result();
        try {
    
    
            String username = String.valueOf(map.get("username"));
            String password = String.valueOf(map.get("password"));
            User user = userService.userlogin(username, password);
            if (user == null) {
    
    
                result.setCode(404);
                result.setMsg("用户不存在或密码错误！");
            } else {
    
    
                result.setCode(200);
                result.setMsg("登录成功");
                result.setData(user);
            }
        } catch (Exception e) {
    
    
            result.setCode(-1);
            result.setMsg(e.getMessage());
        }
        return result;
    }
}

Service层

public interface UserService {
    
    
    //根据用户账号或手机号查询用户
    User userlogin(String username,String password);
}

Mapper层

public interface UserMapper {
    
    
    //根据用户账号或手机号查询用户
    User userlogin(String username,String password);
}

xml文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.example.demo.mapper.UserMapper">
    <!--根据用户账号或手机号查询用户-->
    <select id="userlogin" resultType="com.example.demo.pojo.User">
        select * from user where (Code=#{username} or Iphone=#{username}) and Password=#{password}
    </select>
</mapper>

pojo层

@Data
@NoArgsConstructor
@AllArgsConstructor
public class User {
    
    
    private int Id;
    private int UserTypeID;
    private String Code;
    private String Name;
    private String Password;
    private String Iphone;
}

application.yml配置文件

server:
  port: 8088
spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://127.0.0.1:3306/prosys?autoReconnect=true&useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=CONVERT_TO_NULL&useSSL=false&serverTimezone=CTT&allowMultiQueries=true
    username: root
    password: 123456

PostMan测试