Spring整合Junit

---

一. 导入相关依赖

(1) junit依赖

    
      junit
      junit
      4.12
      test
    

注:Spring 5.x 版本整合Junit时,Junit的版本要求必须在4.12及以上,否则会报错

(2)spring-test

    
    
    
      org.springframework
      spring-test
      5.0.2.RELEASE
    

二. 添加注解

在测试类添加注解:

/**
	* RunWith注解:
	* 作用: 把原有的main方法替换成spring提供的main方法
	* 写法固定
	*/
@RunWith(SpringJUnit4ClassRunner.class)
/**
   * ContextConfiguration注解:
   * locations属性: 用于指定Spring配置文件的路径
   * classes属性: 用于指定注解类所在地的路径
   */
@ContextConfiguration(locations = {"classpath:applicationContext.xml"})
// 注解类写法:
//@ContextConfiguration(classes = SpringConfiguration.class)
public class MapperTest {
	//实现自动依赖注入
    @Autowired
    private DepartmentMapper departmentMapper;

    @Test
    public void testCRUD(){
        //使用依赖注入的对象
        System.out.println(departmentMapper);
    }
}

三.示例代码

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:applicationContext.xml"})
public class MapperTest {
    @Autowired
    private DepartmentMapper departmentMapper;

    @Test
    public void testCRUD(){
        System.out.println(departmentMapper);
    }
}