处理 Controller 数据绑定、数据校验的异常

处理 Controller 数据绑定、数据校验的异常

@Data

public class Dog {

    @NotNull(message = "{Dog.id.non}", groups = {Update.class})

    @Min(value = 1, message = "{Dog.age.lt1}", groups = {Update.class})

    private Long id;

    @NotBlank(message = "{Dog.name.non}", groups = {Add.class, Update.class})

    private String name;

    @Min(value = 1, message = "{Dog.age.lt1}", groups = {Add.class, Update.class})

    private Integer age;

}

@PatchMapping(value = "")

AppResponse update(@Validated(Update.class) @RequestBody Dog dog){

    AppResponse resp = new AppResponse();

    // 执行业务

    Dog newDog = dogService.update(dog);

    // 返回数据

    resp.setData(newDog);

    return resp;

}

/**

 *

 * @ControllerAdvice + @ExceptionHandler 实现全局的 Controller 层的异常处理

 */

@ControllerAdvice

public class GlobalExceptionHandler {

    private static final Logger LOGGER = LoggerFactory.getLogger(GlobalExceptionHandler.class);

    /**

     * 处理所有不可知的异常

     * @param e

     * @return

     */

    @ExceptionHandler(Exception.class)

    @ResponseBody

    AppResponse handleException(Exception e){

        LOGGER.error(e.getMessage(), e);

        AppResponse response = new AppResponse();

        response.setFail("操作失败！");

        return response;

    }

    /**

     * 处理所有业务异常

     * @param e

     * @return

     */

    @ExceptionHandler(BusinessException.class)

    @ResponseBody

    AppResponse handleBusinessException(BusinessException e){

        LOGGER.error(e.getMessage(), e);

        AppResponse response = new AppResponse();

        response.setFail(e.getMessage());

        return response;

    }

    /**

     * 处理所有接口数据验证异常

     * @param e

     * @return

     */

    @ExceptionHandler(MethodArgumentNotValidException.class)

    @ResponseBody

    AppResponse handleMethodArgumentNotValidException(MethodArgumentNotValidException e){

        LOGGER.error(e.getMessage(), e);

        AppResponse response = new AppResponse();

        response.setFail(e.getBindingResult().getAllErrors().get(0).getDefaultMessage());

        return response;

    }

}