在 java sbring-boot 应用程序中使用 @ConfigurationProperties 执行测试的问题

如何解决在 java sbring-boot 应用程序中使用 @ConfigurationProperties 执行测试的问题

Context 被传递为 null，因此在 context.getBean("abcRestTemplate",RestTemplate.class) 中得到 NullPointerException。上下文为空可能是什么问题。

AuthnConfig.java

@Getter
@ConfigurationProperties(prefix = "authn")
@Configuration
public class AuthnConfig {

    @Value("${endpoint}")
    private String endpoint;

    @Value("${client-svc.name}")
    private String serviceClientId;
}

RestTemplateConfig.java

@Configuration
public class RestTemplateConfig {

    private final AuthnConfig authnConfig;

    @Autowired
    public RestTemplateConfig(final AuthnConfig authnConfig) {
        this.authnConfig = authnConfig;
    }

    @Bean(name = "abcRestTemplate"){
    public RestTemplate abcRestTemplate() {
        //authConfig.getEndpoint() etc....
    }
   }
}

RestTemplateConfigTest.java

@RunWith(springrunner.class)
@SpringBoottest
@ActiveProfiles("test")
public class RestTemplateConfigTest {

    @Autowired
    private RestTemplateConfig restTemplateConfig;

    @Autowired
    private ApplicationContext context;

    @Mock
    private AuthnConfig authnConfig;

    @Before
    public void initializeConfig() {
        Mockito.when(authnConfig.getEndpoint()).thenReturn("https://localhost");
    }

    @Test
    public void testForBeanCreation() {
        RestTemplate abcRestTemplate = context.getBean("abcRestTemplate",RestTemplate.class);
        assertNotNull(abcRestTemplate);
    }
}

如果在 RestTemplateConfigTest.class 中使用 @RunWith(MockitoJUnitRunner.class) 会导致错误：

java.lang.NullPointerException,context is getting passed as NULL in context.getBean("abcRestTemplate",RestTemplate.class);

如果在 RestTemplateConfigTest.class 中使用 @RunWith(springrunner.class) 会导致错误

[ERROR] testForBeanCreation  Time elapsed: 0.028 s  <<< ERROR!
java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'authnConfig': Injection of autowired dependencies Failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'endpoint' in value "${endpoint}"
Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'endpoint' in value "${endpoint}"

解决方法

您需要将您的 SpringBooltApplication.class 添加到这个 @SpringBootTest Annotation，就像这样：@SpringBootTest(classes = SpringBootApplicationDemo.class)