springmyboot+batis的代码写一个，带有依赖，yml配置，mapper.xml，entity，mapper，service，controller，application

这里是一个示例的Spring Boot + MyBatis项目的代码，包括了依赖、YAML配置文件、Mapper.xml文件、实体类、Mapper接口、Service层、Controller层和应用程序入口。

pom.xml:

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.mybatis.spring.boot</groupId>
        <artifactId>mybatis-spring-boot-starter</artifactId>
        <version>2.1.4</version>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.23</version>
    </dependency>
</dependencies>

application.yml:

spring:
  datasource:
    username: root
    password: password
    url: jdbc:mysql://localhost:3306/mydatabase
    driver-class-name: com.mysql.jdbc.Driver

mybatis:
  mapper-locations: classpath:mapper/*.xml

User.java:

public class User {
    private Long id;
    private String name;
    private Integer age;

    // getter and setter methods
}

UserMapper.java:

@Mapper
public interface UserMapper {
    @Select("SELECT * FROM users WHERE id = #{id}")
    User getUserById(Long id);

    @Insert("INSERT INTO users(name, age) VALUES(#{name}, #{age})")
    @Options(useGeneratedKeys = true, keyProperty = "id")
    void insertUser(User user);
}

UserService.java:

@Service
public class UserService {
    @Autowired
    private UserMapper userMapper;

    public User getUserById(Long id) {
        return userMapper.getUserById(id);
    }

    public void insertUser(User user) {
        userMapper.insertUser(user);
    }
}

UserController.java:

@RestController
@RequestMapping("/users")
public class UserController {
    @Autowired
    private UserService userService;

    @GetMapping("/{id}")
    public User getUserById(@PathVariable Long id) {
        return userService.getUserById(id);
    }

    @PostMapping("/")
    public void insertUser(@RequestBody User user) {
        userService.insertUser(user);
    }
}

Application.java:

@SpringBootApplication
@MapperScan("com.example.demo.mapper")
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

users.xml:

<mapper namespace="com.example.demo.mapper.UserMapper">
    <select id="getUserById" parameterType="java.lang.Long" resultType="com.example.demo.entity.User">
        SELECT * FROM users WHERE id = #{id}
    </select>

    <insert id="insertUser" parameterType="com.example.demo.entity.User">
        INSERT INTO users(name, age) VALUES(#{name}, #{age})
    </insert>
</mapper>