51工具盒子直接贴代码
|---------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | hljs java package com.ruben.resolver; import com.ruben.utils.AjaxJson; import lombok.extern.slf4j.Slf4j; import org.springframework.validation.FieldError; import org.springframework.web.bind.MethodArgumentNotValidException; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.RestControllerAdvice; import java.util.List; import java.util.stream.Collectors; /** * @ClassName: GlobalExceptionResolver * @Description: 全局异常处理器 * @Date: 2020/8/15 14:24 * * * @author: achao<achao1441470436 @ gmail.com> * @version: 1.0 * @since: JDK 1.8 * @Slf4j 日志打印 * @RestControllerAdvice @ResponseBody+@ControllerAdvice 增强注解 */ @Slf4j @RestControllerAdvice public class GlobalExceptionResolver { /** * 参数校验异常处理 * * @param e * @return */ @ExceptionHandler(value = MethodArgumentNotValidException.class) public AjaxJson parameterValidatorResolver(MethodArgumentNotValidException e) { List<FieldError> errors = e.getBindingResult().getFieldErrors(); return AjaxJson.error(errors.stream().map(FieldError::getDefaultMessage) .collect(Collectors.joining(" "))); } /** * 其他异常 * * @param e * @return */ @ExceptionHandler(value = Exception.class) public AjaxJson otherExceptionResolver(Exception e) { log.error("发生了异常，可能是你的代码有BUG，请跑路", e); return AjaxJson.error("服务器异常，后端跑路了"); } } |
非常简单
在类上加个@RestControllerAdvice注解，在方法加上@ExceptionHandler注解，value给对应的异常类就行
注意如果是@ControllerAdvice注解的话，返回的格式不是json，会被thymeleaf等解析跳转页面
