AspectJ - 在java.net.Socket上加载时编织麻烦

Question

Source:

package net.andrewewhite.aspects;
import java.util.ArrayList;


import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Around;

@Aspect
public class SocketProfiler {

    @Around("call(* java.net.Socket.connect(..)) || execution(* java.net.Socket.connect(..))")
    public void SocketRead(ProceedingJoinPoint joinPoint) throws Throwable {



         long time=0;
         Object rt=null;
             time= System.nanoTime();
            joinPoint.proceed();

            time=(System.nanoTime()-time)/1000;
            com.profile.Profiler.socketRead.add(time);


        }

}

aop.xml

<aspectj>
<aspects>
    <aspect name="net.andrewewhite.aspects.SocketProfiler"/>
  </aspects>
  <weaver options="-verbose -Xset:weaveJavaxPackages=true -Xset:weaveJavaPackages=true">
  </weaver>
 </aspectj>

Vm Args

-javaagent:D:\tools\aspectJn\lib\aspectjweaver.jar  (on eclipse ide)

It works if i try to weaving the calls to system.out.println. But when i try Java.net.Socket it doesn't. Any help in regard appreciated.

Answer 1

Actually I have no problems weaving call(Socket.connect) , but execution(Socket.connect) is another story altogether, because

• call(Socket.connect) matches join points in your client code, ie all the places in your code where the method is called,
• execution(Socket.connect) matches join points in JDK code, but JDK packages java and javax are excluded from weaving by default.

This seems to be the day on which I stumble upon this type of questions (or similar), so you may want to read my answers here and there for further information.