Spring整合JUnit的制作方式

```java
//加载spring整合junit专用的类运行器
@RunWith(SpringJUnit4ClassRunner.class)
//指定对应的配置信息
@ContextConfiguration(classes = SpringConfig.class)
public class AccountServiceTestCase {
    //注入你要测试的对象
    @Autowired
    private AccountService accountService;
    @Test
    public void testGetById(){
        //执行要测试的对象对应的方法
        System.out.println(accountService.findById(2));
    }
}
```

Spring整合Mybatis的制作方式（yml格式）

```yml
spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/ssm_db?useSSL=false
    username: root
    password: 8520
```

实体类

```JAVA
public class Book {
    private Integer id;
    private String type;
    private String name;
    private String description;
}
```

映射接口（Dao）

```JAVA
@Mapper
public interface BookDao {
    @Select("select * from tbl_book where id = #{id}")
    public Book getById(Integer id);
}
```

测试类

```JAVA
@SpringBootTest
class Springboot05MybatisApplicationTests {
    @Autowired
    private BookDao bookDao;
    @Test
    void contextLoads() {
        System.out.println(bookDao.getById(1));
    }
}
```