使用MethodValidationPostProcessor时Spring返回404
使用MethodValidationPostProcessor时Spring返回404
提问于 2020-09-30 23:20:07
我的测试Spring应用程序有问题。它工作得很好，但是当我通过添加依赖项等并添加一个@Configuration来启用Spring验证时
@Configuration
public class TestConfiguration {
@Bean
public MethodValidationPostProcessor methodValidationPostProcessor() {
return new MethodValidationPostProcessor();
}
}我的测试端点得到404。
{
"timestamp": 1601507037178,
"status": 404,
"error": "Not Found",
"message": "No message available",
"path": "/test"
}我已经从类似的问题(如here或here)中应用了一些解决方案/建议，但没有成功。
这是我的代码：https://github.com/zolv/error-handling-test
API接口：
@Validated
public interface TestApi {
@PostMapping(
value = "/test",
produces = {"application/json"},
consumes = {"application/json"})
@ResponseBody
ResponseEntity<TestEntity> getTest(@Valid @RequestBody(required = false) TestEntity request);
}TestEntity只是为了发送一些东西：
@Data
public class TestEntity {
@JsonProperty("test")
@NotNull
private String test;
}主计长实现：
@RestController
@RequiredArgsConstructor
@Validated
public class TestController implements TestApi {
@Override
@ResponseBody
public ResponseEntity<TestEntity> getTest(@Valid @RequestBody TestEntity request) {
return ResponseEntity.ok(request);
}
}我的主计长建议：
@ControllerAdvice
public class DefaultErrorHandlerAdvice extends ResponseEntityExceptionHandler {
@ExceptionHandler(value = {ConstraintViolationException.class})
@ResponseStatus(value = HttpStatus.BAD_REQUEST)
@ResponseBody
public ResponseEntity<String> handleValidationFailure(ConstraintViolationException ex) {
StringBuilder messages = new StringBuilder();
for (ConstraintViolation<?> violation : ex.getConstraintViolations()) {
messages.append(violation.getMessage());
}
return ResponseEntity.badRequest().body(messages.toString());
}
@Override
@ResponseBody
@ResponseStatus(HttpStatus.BAD_REQUEST)
protected ResponseEntity<Object> handleMethodArgumentNotValid(
MethodArgumentNotValidException ex,
HttpHeaders headers,
HttpStatus status,
WebRequest request) {
return ResponseEntity.status(HttpStatus.BAD_REQUEST)
.contentType(MediaType.APPLICATION_PROBLEM_JSON)
.body("problem");
}
}应用程序：
@SpringBootApplication
@EnableWebMvc
@ComponentScan(basePackages = "com.test")
public class TestApplication {
public static void main(String[] args) {
SpringApplication.run(TestApplication.class, args);
}
}我使用的测试，但也失败了使用邮递员：
@SpringJUnitConfig
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
class TestControllerTest {
@Autowired protected TestRestTemplate restTemplate;
@Test
void registrationHappyPath() throws Exception {
/*
* Given
*/
final TestEntity request = new TestEntity();
/*
* When/
*/
final ResponseEntity<String> response =
restTemplate.postForEntity("/test", request, String.class);
/*
* Then
*/
Assertions.assertEquals(HttpStatus.BAD_REQUEST, response.getStatusCode());
final String body = response.getBody();
Assertions.assertNotNull(body);
}
}如果我注释掉一个TestConfiguration，那么一切都很好。提前感谢您的帮助。
回答 1
Stack Overflow用户
回答已采纳
发布于 2020-10-01 03:51:48
您应该设置MethodValidationPostProcessor#setProxyTargetClass(true)，因为默认情况下，MethodValidationPostProcessor使用JDK代理，这会导致控制器在Spring上下文中丢失。
当AbstractHandlerMethodMapping#processCandidateBean被调用时，isHandler(Class<?> beanType)将返回false，因为JDK代理不包含@RestController注释。
public MethodValidationPostProcessor methodValidationPostProcessor() {
MethodValidationPostProcessor mvProcessor = new MethodValidationPostProcessor();
mvProcessor.setProxyTargetClass(true);
return mvProcessor;
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/64147036
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