没有数据库连接的Spring Boot测试

Question

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
@AutoConfigureMockMvc

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)

@RunWith(SpringRunner.class)
@DataJpaTest
@WebMvcTest(CitizenController.class)
@AutoConfigureMockMvc
public class CitizenControllerTest {

@Autowired
private MockMvc mockMvc;

@MockBean
private CitizenRepository citizenRepository;

@MockBean
private WeeklyCareRepository weeklyCareRepository;

@MockBean
private SubCategoryCareRepository subCategoryCareRepository;

@Autowired
private ObjectMapper objectMapper;

private static List<Citizen> mockCitizenList;

private String citizenJson;

java.lang.IllegalStateException: Configuration error: found multiple declarations of @BootstrapWith for test class [controllers.CitizenControllerTest]: [@org.springframework.test.context.BootstrapWith(value=class org.springframework.boot.test.context.SpringBootTestContextBootstrapper), @org.springframework.test.context.BootstrapWith(value=class org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTestContextBootstrapper)]

是否可以在没有数据库连接的情况下运行我的测试？如果是，我做错了什么/错过了什么？

Answer 1

您可以在@test方法中模拟将连接到repository类中的数据库的方法。

@SpringBootTest
@AutoConfigureMockMvc
class StoreApplicationTests {

    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private CitizenRepository citizenRepository;


    @Test
    void contextLoads() {
    }

    @Test
    public void test() {

        Mockito.when(citizenRepository.getDataFromDB()).thenReturn("Something you'd like to Return");

    }

}

在这样做之后，CitizenRepository.getDataFromdb（）在被调用时将不会连接到数据库。

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