aopinstrumenter.java

一个关于Spring框架的示例应用程序,简单使用,可以参考.

/**
 * Title : Base Dict Class
 * Description : here Description is the function of class, here maybe multirows    
 * @author        <a href="mailto:[e-mail]">kevin</a> 
 * @Version       1.0 
 */

package base;

import java.lang.reflect.Method;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import net.sf.cglib.proxy.Enhancer;
import net.sf.cglib.proxy.MethodInterceptor;
import net.sf.cglib.proxy.MethodProxy;

/**
 * Class description goes here.
 * @version 1.0  2005-9-21 
 * @author kevin
 */
public class AOPInstrumenter implements MethodInterceptor
{

	private static Log logger = LogFactory.getLog(AOPInstrumenter.class);
	private Enhancer enhancer = new Enhancer();

	public Object getInstrumentedClass(Class clz)
	{
		enhancer.setSuperclass(clz);
		enhancer.setCallback(this);
		return enhancer.create();
	}

	/**
	 * @see net.sf.cglib.proxy.MethodInterceptor#intercept(java.lang.Object, java.lang.reflect.Method, java.lang.Object[], net.sf.cglib.proxy.MethodProxy)
	 */
	public Object intercept(Object o, Method method, Object[] methodParameters, MethodProxy methodProxy) throws Throwable
	{
		logger.debug("Before Method =>"+method.getName());
		System.out.println("Before Method =>"+method.getName());
		Object result = methodProxy.invokeSuper(o, methodParameters);
		logger.debug("After Method =>"+method.getName());
		System.out.println("After Method =>"+method.getName());
		System.out.println("result =>"+result);
		return result;
	}

}