其他的文章

公共模块：

http://www.haijin.xyz/article/930

之前的参数校验：

http://www.haijin.xyz/list/article/181

1、引入maven依赖：

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-validation</artifactId>
        </dependency>

2、相关配置：

/**
 * 通用异常处理参数校验相关异常
 *
 * @author system
 */
@Slf4j
@RestControllerAdvice(assignableTypes = TestController.class)  // 针对当前的接口进行校验拦截
@Order(1)
public class ValidationExceptionHandler {

    @ExceptionHandler(MethodArgumentNotValidException.class)
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public ResultData<Object> handleMethodArgumentNotValid(MethodArgumentNotValidException e) {
        String errorMessage = Objects.requireNonNull(e.getBindingResult().getFieldError()).getDefaultMessage();
        return ResultData.builder()
                .code(ReturnCodeEnum.RC999.getCode())
                .message(errorMessage)
                .build();
    }

    @ExceptionHandler(ConstraintViolationException.class)
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public ResultData<Object> handleConstraintViolation(ConstraintViolationException e) {
        String errorMessage = e.getMessage();
        return ResultData.builder()
                .code(ReturnCodeEnum.RC999.getCode())
                .message(errorMessage)
                .build();
    }

    @ExceptionHandler(MissingServletRequestParameterException.class)
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public ResultData<Object> handleMissingServletRequestParameter(MissingServletRequestParameterException e) {
        String errorMessage = "参数不能为空：" + e.getParameterName();
        return ResultData.builder()
                .code(ReturnCodeEnum.RC999.getCode())
                .message(errorMessage)
                .build();
    }
}

3、TestController：

    @GetMapping("/test/list")
    @ResponseBody
    public ResultData<Object> queryVideoList(
            @RequestParam("type") @NotNull(message = "参数不能为空：type") Integer type) {

4、常用注解