【Spring】Spring和JUnit5整合及注解

Spring和JUnit5整合及注解

• 原寫法：

  需要手寫代碼，根據配置文件加載上下文，從而得到bean，調用方法。

  public class MyTest2 {
  
      @Test
      public void test() {
          ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
          TutorService tutorService = context.getBean("tutorServiceImpl", TutorService.class);
          Tutor tutor = tutorService.getTutorById("20170000");
          System.out.println(tutor);
      }
  
  }
  

  
  

可以使用注解簡化

• 加入依賴：spring-test的版本和spring要一致。

  		<dependency>
              <groupId>junit</groupId>
              <artifactId>junit</artifactId>
              <version>4.12</version>
              <scope>test</scope>
          </dependency>
          <dependency>
              <groupId>org.junit.jupiter</groupId>
              <artifactId>junit-jupiter</artifactId>
              <version>RELEASE</version>
              <scope>test</scope>
          </dependency>
          <!--spring-test-->
          <dependency>
              <groupId>org.springframework</groupId>
              <artifactId>spring-test</artifactId>
              <version>5.2.12.RELEASE</version>
              <scope>test</scope>
          </dependency>
  

• 使用注解的測試類

  JUnit5使用@ExtendWith(SpringExtension.class)

  *@ExtendWith和@ContextConfiguration可以合並，寫復合注解@SpringJUnitConfig(locations="classpath:applicationContext.xml")

  import org.junit.jupiter.api.Test;//保證這個包導入
  
  @ExtendWith(SpringExtension.class)
  @ContextConfiguration("classpath:applicationContext.xml")
  public class MyTest {
  
      @Autowired
      TutorService tutorService;
  
      @Test
      public void test2() {
          Tutor tutor = tutorService.getTutorById("20170000");
          System.out.println("tutor=" + tutor);
      }
  }
  

  *JUnit4使用@Runwith(SpringJUnit4ClassRunner.class)