timerinterceptor.java

想学习EJB的同学

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package ejb3.day6;

import javax.interceptor.AroundInvoke;
import javax.interceptor.InvocationContext;

/**
 *
 * @author user
 */
public class TimerInterceptor {
    @AroundInvoke
    public Object timer(InvocationContext ic) throws Exception{
        String bean = ic.getTarget().getClass().getName();
        String method = ic.getMethod().getName();
        long begin = System.currentTimeMillis();
        Object ret = ic.proceed();
        long end = System.currentTimeMillis();
        System.out.println("calling " + method + " on " + bean + " takes " + (end - begin) + "ms");
        return ret;
    }
}