使用Spring的AOP实现接口方法执行时间记录

项目使用RPC提供的内部服务，需要监控每个接口方法的调用情况以及响应时间，如果接口方法开始和结束时都计时并将两个时间相减得到响应时间，势必对代码的入侵太大。使用AOP刚好能很优雅的解决这个问题！

 

1.MethodTimeAdvice.java 用来记录时间

 

 package yourpackage.utils;

 import org.aopalliance.intercept.MethodInterceptor;
 import org.aopalliance.intercept.MethodInvocation;
 import org.apache.commons.lang.StringUtils;
 import org.apache.commons.lang.time.StopWatch;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 public class MethodTimeAdvice implements MethodInterceptor {

     private static final Logger Log = LoggerFactory
             .getLogger(MethodTimeAdvice.class);

     @Override
     public Object invoke(MethodInvocation invocation) throws Throwable {
         // 用 commons-lang 提供的 StopWatch 计时
         StopWatch clock = new StopWatch();
         clock.start(); // 计时开始
         Object result = invocation.proceed();
         clock.stop(); // 计时结束

         // 方法参数类型，转换成简单类型
         Class[] params = invocation.getMethod().getParameterTypes();
         String[] simpleParams = new String[params.length];
         for (int i = 0; i < params.length; i++) {
             simpleParams[i] = params[i].getSimpleName();
         }
         Object[] args = invocation.getArguments();

         Log.info("Takes:" + clock.getTime() + " ms ["
                 + invocation.getThis().getClass().getName() + "."
                 + invocation.getMethod().getName() + "("
                 + StringUtils.join(simpleParams, ",") + ")("
                 + StringUtils.join(args, ",") + ")] ");
         return result;
     }

 }

 

3.applicationContext.xml

 

 xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
     xmlns:context="http://www.springframework.org/schema/context"
     xmlns:aop="http://www.springframework.org/schema/aop"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
             http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
             http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"
     default-lazy-init="true">
         <aop:aspectj-autoproxy />
     <bean id="methodTimeAdvice" class="cn.hiluo.openfire.utils.MethodTimeAdvice" />
     <aop:config>

         <aop:advisor id="methodTimeLog" advice-ref="methodTimeAdvice"
             pointcut="execution(* yourpackage.service.impl..*.*(..))" />
     aop:config>
         <bean id="yourservice" class="**.impl.yourServiceImpl">

     bean>
         。。。。。yourbeans
 beans>

 

4.注意需要加入Spring相关包，比较容易遗漏的：org.springframework.aop-3.0.6.RELEASE.jar，org.springframework.aspects-3.0.6.RELEASE.jar，aspectjweaver-1.5.3.jar，aopalliance-1.0.jar

 

5.applicationContext.xml注意xml中和AOP相关的dtd的引入，还要注意pointcut="execution(* yourpackage.service.impl..*.*(..))" 的配置语法

 

6.最后在info.log里面可以看到如上图的输出，最后再用shell统计即可。

 

参考：

http://jportal.iteye.com/blog/945725

 

http://www.java63.com/spring/configure_implement_aop.html