AOP记录方法的执行时间

作用AOP监控方法的运行时间如下：

@Component
@Aspect
public class LogAop {

    private Logger log = LoggerFactory.getLogger(getClass());
    //切面
    private final String CUT = "execution (* com.wey.spring.controller.*Controller.*(..))";

    @Around(CUT)
    public Object around(ProceedingJoinPoint pjp) throws Throwable {
        Object[] args = pjp.getArgs();
        Object result = null;
        long start = System.currentTimeMillis();
        try {
            result = pjp.proceed(args);
        }
        catch (Exception e) {
            throw e;
        }

        long end = System.currentTimeMillis();
        log.info("" + pjp.getTarget().getClass() + "." + pjp.getSignature().getName() + " 方法用了 " + (end - start)
                + "毫秒");
        return result;
    }
}

注解方式配置开启动态代理：

@EnableAspectJAutoProxy

XML配置方式的

<aop:aspectj-autoproxy proxy-target-class="true"/>