spring AspectJ AOP

    <!-- 开启Spring对标注了@Aspect注解bean的支持 默认是不支持@AspectJ风格的切面
     统一使用CGLIB代理(spring默认是JDK的动态代理，若没有实现接口则会开启CGLIB)
     使用CGLIB，它有一个使用限制，即无法在使用final修饰的bean上应用横切关注点
     因为代理需要对Java类进行继承，一旦使用了关键字final，这将是无法做到的-->
    <aop:aspectj-autoproxy proxy-target-class="true" />

    <!-- 自动扫描注解的bean-->
    <context:component-scan base-package="com.xxx.xxx">
        <context:include-filter type="annotation" expression="com.alibaba.dubbo.config.annotation.Service" />
        <context:include-filter type="annotation" expression="org.aspectj.lang.annotation.Aspect" />
    </context:component-scan>

@Aspect
@Slf4j
public class Aspect {
    /**
     * 声明切入点，此方法无内容，返回类型必须是void
     */
    @Pointcut("execution(* com.xxx.xxx.*.service..*.*(..))")
    public void pointCut() {

    }

    /**
     * 声明环绕通知
     * @param pjp   连接点 通过连接点实例来获得方法执行的上下文信息
     * @return
     * @throws Throwable
     */
    @Around(value = "pointCut()")
    public Object transferException(ProceedingJoinPoint pjp) throws Throwable {
        // 方法返回值
        Class<?> methodReturnType = ((MethodSignature) pjp.getSignature()).getMethod().getReturnType();
        Object result = null;
        try {
            result = pjp.proceed();//Proceed with the next advice or target method invocation
        }
        catch (Exception e) {
            log.error("exception  occurred..............");
            if (methodReturnType.isAssignableFrom(Response.class)) {
                String errorCode = null;
                String errorMsg = null;
                if (e instanceof ApplicationException) {
                    errorCode = ((ApplicationException) e).getCode();
                    errorMsg = ((ApplicationException) e).getErrorMessage();
                }
                else {
                    errorCode = BussErrorCode.ERROR_CODE_999999.getErrorcode();
                    errorCode = BussErrorCode.ERROR_CODE_999999.getErrordesc();
                }
                result = new Response<Object>(errorCode, errorMsg);
            }
        }
        return result;
    }
}