java - spring-boot 中的自定义 ConstraintViolationException

Question

我如何捕获此 ConstraintViolationException 的异常:

{
    "timestamp": "2019-05-31T07:23:03.419+0000",
    "status": 500,
    "error": "Internal Server Error",
    "message": "could not execute statement; SQL [n/a]; constraint [fkitcllv8yn2id9lj3rmw3wskhd]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement",
    "path": "/pelajar"
}

当我尝试删除记录时，会发生此说明。但该记录仍被其他表中的其他记录引用。

我有 2 个 CustomExceptionHandle : 第一个用于捕获一般异常和 第二个用于捕获 ConstraintViolation 异常。

但在我的程序中，每次ConstraintViolation触发时，handleAllExceptions都会被执行。我的期望是应该执行handleConstraint函数。

@ControllerAdvice
@RestController
public class CustomResponseEntityExceptionHandler extends ResponseEntityExceptionHandler {

    @Order(Ordered.HIGHEST_PRECEDENCE)
    @ExceptionHandler(value = {ConstraintViolationException.class})
    public  ResponseEntity<Object> handleConstraint(ConstraintViolationException ex, 
            WebRequest request ) {

        ExceptionResponse exceptionResponse = new ExceptionResponse(new Date(), "Record still have reference from other table",
                request.getDescription(false));
        return new ResponseEntity(exceptionResponse, HttpStatus.BAD_REQUEST);       
    }


    @Order(Ordered.LOWEST_PRECEDENCE)
    @ExceptionHandler(value = {Exception.class})
    public final ResponseEntity<Object> handleAllExceptions(Exception ex, WebRequest request) {
        ExceptionResponse exceptionResponse = new ExceptionResponse(new Date(), ex.getMessage()+" Custom Error",
                request.getDescription(false));
        return new ResponseEntity(exceptionResponse, HttpStatus.INTERNAL_SERVER_ERROR);
    }
}

但是，如果我删除handleAllExceptions，ConstraintViolationException 将被handleConstraint 函数捕获。

谁能给我建议吗？

谢谢。
替代...

Answer 1

似乎您已在 CustomResponseEntityExceptionHandler 中导入了 javax.validation.ConstraintViolationException 而不是 org.hibernate.exception.ConstraintViolationException。如果未正确导入，请导入org.hibernate.exception.ConstraintViolationException。