spring boot的数据校验，通过全局异常处理

//2019/8/10  zjm@ControllerAdvice
public class ExceptionController {

    private final static Logger logger = LoggerFactory.getLogger(ExceptionController.class);

    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    @ResponseBody
    public FrontResponse validationBodyException(MethodArgumentNotValidException exception){
        BindingResult bindingResult = exception.getBindingResult();
        return getBindingResult(bindingResult);
    }

    @ExceptionHandler(value = BindException.class)
    @ResponseBody
    public FrontResponse validationBindException(BindException exception){
        BindingResult bindingResult = exception.getBindingResult();
        return getBindingResult(bindingResult);
    }

    private FrontResponse getBindingResult(BindingResult bindingResult){
        List<ObjectError> list = bindingResult.getAllErrors();
        StringBuilder builder = new StringBuilder();
        list.forEach(x -> {
                    FieldError error = (FieldError) x;
                    builder.append(error.getDefaultMessage());
                    builder.append("<br/>");
                }
        );
        return FrontResponse.fail(ErrorCodeDict.PARAMETER_INVALID.getCode(),builder.toString());
    }

    @ExceptionHandler(value = ConstraintViolationException.class)
    @ResponseBody
    public FrontResponse ConstraintViolationExceptionHandler(ConstraintViolationException exception) {
        Set<ConstraintViolation<?>> violations = exception.getConstraintViolations();
        StringBuilder builder = new StringBuilder();
        for (ConstraintViolation<?> item : violations) {
            builder.append(item.getMessage());
            builder.append("<br/>");
        }
        return FrontResponse.fail(ErrorCodeDict.PARAMETER_INVALID.getCode(),builder.toString());
    }

    @ExceptionHandler(value = HttpMessageConversionException.class)
    @ResponseBody
    public FrontResponse parameterTypeException(HttpMessageConversionException exception){
        return FrontResponse.fail(ErrorCodeDict.PARAMETER_INVALID.getCode(),"parameterTypeException");
    }

    @ExceptionHandler(value = Exception.class)
    @ResponseBody
    public FrontResponse handle(Exception e) {
        logger.error("系统异常", e);
        return FrontResponse.fail(ErrorCodeDict.SYSTEM_ERROR.getCode(),"system error");

    }

原文地址：https://www.cnblogs.com/zjm-1/p/12207019.html