Question

我有以下设置

@ControllerAdvice
public class AppControllerAdvice extends ResponseEntityExceptionHandler {

    @ExceptionHandler({UserInputValidationException.class})
    public ResponseEntity<UserInputValidationResponseBody> handleBadInputException(UserInputValidationException ex, WebRequest request) {
        return new ResponseEntity<>(
                new UserInputValidationResponseBody().setFieldErrors(ex.getFieldErrors()),
                HttpStatus.BAD_REQUEST
        );
    }

}

这大致是@RestController抛出格式良好的验证异常

@RestController
@RequestMapping("api")
public class MyController {


/**
per the answer, BindingResult must immediately follow the @RequestBody or the item being found
*/
    @PostMapping
    public ResponseEntity<?> foo(@Valid @RequestBody FormPOJO formBody, Principal principal, BindingResult bindingResult) {
        // if bindingResult has errors, throw a UserInputValidationException
    }
}

我想要绑定的POJO对它们进行JSR-303验证注释，Spring在请求参数绑定期间的绑定时正确验证它们

然而......当我让这个设置工作一段时间 - 然后Spring随机开始绕过@RestController和@ControllerAdvice

现在看来我正在接收org.springframework.web.bind.MethodArgumentNotValidException ...即请求被短路

我正在运行Spring Boot 1.5.4.RELEASE ...

编辑根据another thread的建议，我添加了

@Order(Ordered.HIGHEST_PRECEDENCE)

给控制器建议......它只会让事情变得更糟。现在绝对没有验证错误 - 客户端只收到一条空白消息（在当前问题浮出水面之前，这是问题的症状，没有任何代码更改）

Answer 1

好的结果是

An Errors/BindingResult argument is expected to be declared immediately after the model attribute, the @RequestBody or the @RequestPart arguments to which they apply: public org.springframework.http.ResponseEntity com.remo.api.portfolios.PortfolioController.put(java.security.Principal,org.springframework.validation.BindingResult,com.remo.api.portfolios.Portfolio

tl; dr 请继续并确保{strong> BindingResult 之前确认@RequestBody

使用ControllerAdvice的Spring Boot验证不确定性

1 个答案: