BusinessExceptionHandler.java
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package org.nafmii.common.exception;
import feign.codec.DecodeException;
import lombok.extern.slf4j.Slf4j;
import org.nafmii.common.constant.MessageEnum;
import org.nafmii.common.response.ApiResponse;
import org.springframework.core.annotation.Order;
import org.springframework.http.converter.HttpMessageNotReadableException;
import org.springframework.validation.BindException;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MaxUploadSizeExceededException;
@Order(Integer.MIN_VALUE)
@ControllerAdvice
@Slf4j
public class BusinessExceptionHandler {
/**
* 默认异常处理
*/
@ExceptionHandler(value = Exception.class)
@ResponseBody
public ApiResponse defaultErrorHandler(Exception e) {
log.error (e.getMessage (), e);
return new ApiResponse(MessageEnum.FAIL.getCode(), e.getMessage());
}
/**
* 自定义业务异常处理
* @param e BusinessException
* @return ApiResponse
*/
@ExceptionHandler(value = BusinessException.class)
@ResponseBody
public ApiResponse businessErrorHandler(BusinessException e) {
log.error (e.getMessage (), e);
return new ApiResponse(MessageEnum.FAIL.getCode(), e.getMessage());
}
/**
* 入参异常处理
*/
@ExceptionHandler(value = MethodArgumentNotValidException.class)
@ResponseBody
public ApiResponse argumentErrorHandler(MethodArgumentNotValidException e) {
BindingResult bindingResult = e.getBindingResult();
String errorMessage = "参数不能为空!";
if (bindingResult.getFieldError() != null){
errorMessage = bindingResult.getFieldError().getDefaultMessage();
}
return new ApiResponse(MessageEnum.FAIL_PARAM.getCode(), errorMessage);
}
/**
* 入参类型异常处理
*/
@ExceptionHandler(value = HttpMessageNotReadableException.class)
@ResponseBody
public ApiResponse argumentErrorHandler(HttpMessageNotReadableException e) {
log.error (e.getMessage(), e);
return new ApiResponse(MessageEnum.FAIL_PARAM_TYPE.getCode(), MessageEnum.FAIL_PARAM_TYPE.getRemarks());
}
/**
* FeignClient解码失败
*/
@ExceptionHandler(value = DecodeException.class)
@ResponseBody
public ApiResponse argumentErrorHandler(DecodeException e) {
log.error (e.getMessage(), e);
return new ApiResponse(MessageEnum.FEIGN_CLIENT_DECODE.getCode(), MessageEnum.FEIGN_CLIENT_DECODE.getRemarks());
}
/**
* 文件大小限制
*/
@ExceptionHandler(value = MaxUploadSizeExceededException.class)
@ResponseBody
public ApiResponse argumentErrorHandler(MaxUploadSizeExceededException e) {
log.error (e.getMessage(), e);
return new ApiResponse(MessageEnum.MAX_FILE_SIZE.getCode(), MessageEnum.MAX_FILE_SIZE.getRemarks());
}
}