@Slf4j
@Component //Spring容易自动管理
@RestControllerAdvice //在controller层添加通知。如果使用@ControllerAdvice,则方法上需要添加@ResponseBody
@RestControllerAdvice=@ControllerAdvice+@ResponseBody
public class UnifiedExceptionHandler {
/**
* 未定义异常
*/
@ExceptionHandler(value = Exception.class) //当controller中抛出Exception,则捕获
public R handleException(Exception e) {
log.error(e.getMessage(), e);
return R.error();
}
}
/**
* 特定异常
*/
@ExceptionHandler(BadSqlGrammarException.class)
public R handleBadSqlGrammarException(BadSqlGrammarException e){
log.error(e.getMessage(), e);
return R.setResult(ResponseEnum.BAD_SQL_GRAMMAR_ERROR);
}
创建自定义异常类
@Data
@NoArgsConstructor
public class BusinessException extends RuntimeException {
//状态码
private Integer code;
//错误消息
private String message;
}
添加异常处理方法
/**
- 自定义异常
*/
@ExceptionHandler(BusinessException.class)
public R handleBusinessException(BusinessException e){
log.error(e.getMessage(), e);
return R.error().message(e.getMessage()).code(e.getCode());
}
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