捕获Service层异常，统一处理

新增注解，实现类和方法层级的异常捕获

package com.ahdruid.aop.annotation;

import java.lang.annotation.*;

/**
 * 服务异常捕获，如捕获Service向外抛出的异常
 * 

 * 添加在类上、方法上
 *
 */
@Documented
@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
public @interface ServiceExcepCatch {
}

异常处理handler

package com.ahdruid.aop;

import com.ahdruid.ReturnMsg;
import com.ahdruid.errorenums.BaseErrorEnum;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;

/**
 * 服务异常捕获处理器
 * 

 * 如捕获Service向外抛出的异常
 *
 */
@Component
@Aspect
@Slf4j
public class ServiceExcepHandler {

    @Around("@annotation(com.ahdruid.aop.annotation.ServiceExcepCatch)  || @within(com.ahdruid.aop.annotation.ServiceExcepCatch)")
    public ReturnMsg serviceExcepHandler(ProceedingJoinPoint proceedingJoinPoint) {
        ReturnMsg returnMsg = new ReturnMsg();
        try {
            returnMsg = (ReturnMsg) proceedingJoinPoint.proceed();
        } catch (Throwable throwable) {
            log.error("ServiceExcepHandler serviceExcepHandler failed", throwable);
            returnMsg.setError(BaseErrorEnum.SYS_ERROR_UNKNOW);
        }
        return returnMsg;
    }
}

 

使用时，在类或者方法上加上注解@ServiceExcepCatch