MockMvc HttpMediaTypeNotSupportedException：不支持内容类型“应用程序/json”

Question

我收到以下异常：

org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'application/json' not supported

    at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.readWithMessageConverters(HandlerMethodInvoker.java:653)
    at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveRequestBody(HandlerMethodInvoker.java:612)
    at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveHandlerArguments(HandlerMethodInvoker.java:361)
    at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:175)
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)
    at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:65)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
    at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:167)
    at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134)

我的测试如下所示：

public class AvailabilityControllerTest extends BaseTest {   
    @Test
    public void createAvailability() throws Exception {
        final String createAvailabilityEndPoint = "/api/v4/companies/123/availabilities";
        final String responseName = "availabilityResponseDTO";

        AvailabilityDTO availabilityDTO = new AvailabilityDTO();

        MvcResult mvcResult = mockMvc.perform(
                MockMvcRequestBuilders.post(createAvailabilityEndPoint)
                        .contentType(MediaType.APPLICATION_JSON_VALUE)
                        .accept(MediaType.APPLICATION_JSON_VALUE)
                        .content(new ObjectMapper().writeValueAsString(availabilityDTO)))
                .andExpect(MockMvcResultMatchers.status().isCreated())
                .andReturn();
    }

BaseTest 为：

@RunWith(SpringRunner.class)
@SpringBootTest(classes = TestConfiguration.class)
@AutoConfigureMockMvc
public class BaseTest {

    @Autowired
    protected MockMvc mockMvc;

}

TestConfiguration 如下所示：

@Configuration
@ComponentScan(
        basePackages = "com.app",
        excludeFilters = {
                @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, classes = App.class)
        }
)
public class TestConfiguration {

    @Bean
    public ErrorAttributes errorAttributes() {
        return new DefaultErrorAttributes();
    }
}

AvailabilityController 看起来像这样：

@RestController
@RequestMapping("/api/v4/companies")
public class AvailabilityController {

    public static final String ACCEPT_APP_JSON = "Accept=" + AcceptableMediaType.APPLICATION_JSON;

    @Autowired
    private AvailabilityFacade availabilityFacade;

@RequestMapping(value = "/{companyId}/employees/{employeeId}/availabilities", method = RequestMethod.GET)
    public List<AvailabilityEventResponseDTO> getUserAvailabilities(@PathVariable String companyId,
                                                                    @PathVariable String employeeId) {
        return availabilityFacade.getUserAvailabilities(employeeId);
    }

    @RequestMapping(value = "/{companyId}/availabilities", method = RequestMethod.POST, headers = ACCEPT_APP_JSON, consumes = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<AvailabilityResponseDTO> createAvailability(@PathVariable String companyId,
                                                                      @Valid @RequestBody AvailabilityDTO availabilityDTO) {
        return new ResponseEntity<>(
                availabilityFacade.createAvailability(companyId, availabilityDTO),
                HttpStatus.CREATED
        );
    }
}

基本上，GET 请求适用于 MockMvc，但 POST 不适用，并返回此 HttpMediaTypeNotSupportedException。我尝试在请求和控制器中添加和删除接受和内容类型的标头，但这似乎不起作用。

这个问题似乎与Spring integration test with mockmvc throws org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'application/json' not supported 有关，但在这种情况下删除 TestConfiguration 中的 excludeFilters 不允许 Spring 解释上下文。另外，我不确定 Karl R 所说的“在我的类路径中包含服务器运行时”是什么意思。

感谢任何帮助。

Answer 1

在我的情况下，问题是我没有设置contentType，因此将其设置为 JSON 类型解决了我的问题。

...
.contentType(MediaType.APPLICATION_JSON)
...

Answer 2

我认为您应该将 @EnableWebMvc 添加到您的 TestConfiguration。

@Configuration
@ComponentScan(
     basePackages = "com.app",
    excludeFilters = {
            @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, 
              classes = App.class)
    }
)
@EnableWebMvc
public class TestConfiguration {