Springboot整合mybatis

最新推荐文章于 2024-08-21 23:39:15 发布

原创最新推荐文章于 2024-08-21 23:39:15 发布 · 237 阅读

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文章标签：

#mybatis

本文介绍如何在Spring Boot项目中整合MyBatis，并通过具体示例展示如何实现用户的添加与查询操作。文章首先介绍了所需的依赖配置，接着详细解释了controller、service及repository各层的具体实现。

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IDEA版：

1.添加依赖

//web
compile('org.springframework.boot:spring-boot-starter-web')
//mybatis依赖
compile('org.mybatis.spring.boot:mybatis-spring-boot-starter:1.3.2')
//mysql依赖
runtime('mysql:mysql-connector-java')
//lombok
compileOnly('org.projectlombok:lombok')

2.controller层代码

@RestController
@RequestMapping(value = "/mybatis")
public class PersonController {

    @Resource
    private PersonService personService;

    //添加用户
    @RequestMapping(value = "/addperson", method = RequestMethod.GET)
    public String addPerson() {
        Person person = new Person();
        person.setName("千夜");
        person.setAge(24);
        personService.addPerson(person);
        return "SUCCESS";
    }

    //根据id查询用户
    @RequestMapping(value = "/getpersonbyid/id/{id}", method = RequestMethod.GET)
    public Person getPersonById(@PathVariable(value = "id") Integer id) {
        return personService.getPersonById(id);
    }
}

3.service层代码

public interface PersonService {

    void addPerson(Person person);

    Person getPersonById(Integer id);
}

@Service
public class PersonServiceImpl implements PersonService {

    @Resource
    private PersonMapper personMapper;

    @Override
    public void addPerson(Person person) {
        personMapper.addPerson(person);
    }

    @Override
    public Person getPersonById(Integer id) {
        return personMapper.getPersonById(id);
    }
}

4.repository层代码

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Person {

    private Integer id;

    private String name;

    private Integer age;
}

@Mapper
public interface PersonMapper {

    @Insert("insert into person (name, age) values (#{name}, #{age})")
    void addPerson(Person person);

    @Select("select * from person where id = #{id}")
    Person getPersonById(Integer id);
}