Java 在SpringBoot测试中获取配置属性类bean

我定义了一个类，用于自动从应用程序加载属性-*。属性位于我的sprintboot应用程序中：

@Component
@ConfigurationProperties("my-app")
@EnableConfigurationProperties
@Data
public class MyAppProperties {

  private String propertyX;
  private String propertyY;

..

}

下面是我的测试课：

@SpringBootTest(webEnvironment = WebEnvironment.DEFINED_PORT)
public class MessageProcessorApplicationTests {

  @Autowired
  private static RestTemplate restTemplate;

  @Autowired
  public static MyAppProperties myAppProperties;

  @Test
  public void testSomething(){
     doSomeSeetup(myAppProperties.getPropertyX()) //myAppProperties is null!! why?
}

@SpringBootTest(webEnvironment = WebEnvironment.DEFINED_PORT)
@EnableConfigurationProperties(value = MyAppProperties.class)
public class MessageProcessorApplicationTests {

  @Autowired
  private RestTemplate restTemplate;

  @Autowired
  public MyAppProperties myAppProperties;

  @Test
  public void testSomething(){
     doSomeSeetup(myAppProperties.getPropertyX()) //myAppProperties is null!! why?
}

---

在我的测试中，myAppProperties始终为null。如何在测试中获取此实例？？？

将

@EnableConfigurationProperties（value=MyAppProperties.class）

添加到测试类：

@SpringBootTest(webEnvironment = WebEnvironment.DEFINED_PORT)
public class MessageProcessorApplicationTests {

  @Autowired
  private static RestTemplate restTemplate;

  @Autowired
  public static MyAppProperties myAppProperties;

  @Test
  public void testSomething(){
     doSomeSeetup(myAppProperties.getPropertyX()) //myAppProperties is null!! why?
}

@SpringBootTest(webEnvironment = WebEnvironment.DEFINED_PORT)
@EnableConfigurationProperties(value = MyAppProperties.class)
public class MessageProcessorApplicationTests {

  @Autowired
  private RestTemplate restTemplate;

  @Autowired
  public MyAppProperties myAppProperties;

  @Test
  public void testSomething(){
     doSomeSeetup(myAppProperties.getPropertyX()) //myAppProperties is null!! why?
}

---

用

@RunWith（SpringRunner.class）

注释

MessageProcessorApplicationTests

，以自动加载application.properties文件

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = WebEnvironment.DEFINED_PORT)
public class MessageProcessorApplicationTests {

@Autowired
  private static RestTemplate restTemplate;

  @Autowired
  public static MyAppProperties myAppProperties;

  @Test
  public void testSomething(){
     doSomeSeetup(myAppProperties.getPropertyX());

}

---

这不起作用。在\@Test和\@BeforeClass方法中，myAppProperties仍然为null。我向类中添加了RunWith（SpringRunner.class）注释，它成功了。这是正确的方法吗？@RunWith（SpringRunner.class）用于在Spring启动测试功能和JUnit之间提供桥梁。每当我们在JUnit测试中使用任何Spring引导测试功能时，都需要此注释。如果您使用JUnit平台（Junit5）

SpringBootTests

包括

@ExtendWith（SpringExtension.class）

，这使得添加

@RunWith（SpringRunner.class）成为可能

不必要，我只是在使用标准的springboot web flux启动器和spring boot启动器测试。我如何知道它使用的是JUnit4还是JUnit5？使用命令

mvn dependency:tree | grepJUnit

检查junit版本