java 基于cglib动态代理

注意被代理的类不能是final类型的。

import java.lang.reflect.Method;

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

import org.junit.Test;

/**
 * @author xxx
 * @createDate 2014-5-31上午10:59:01
 * @className CglibProxy.java
 * @useFor cglib基于类的代理
 */
public class CglibProxy {

	@Test
	public void cglibProxy()
	{
		RealProxy realProxy = new RealProxy();
		RealClass realClass = (RealClass)realProxy.getInstance(new RealClass()) ;
		realClass.doSomething() ;
	}
}

class RealClass
{
	public void doSomething()
	{
		System.out.println("端午节");
	}
};

  
  
/**
 *  
 * @author lanweixing
 * @createDate 2014-5-31上午11:01:42
 * @className CglibProxy.java
 * @useFor  
 */

class RealProxy implements MethodInterceptor  
{  
    /** 
     * 代理类
     */  
    private Object target;  
      
    public Object getInstance(Object target)  
    {  
        this.target = target;  
        Enhancer en = new Enhancer();  
        en.setSuperclass(target.getClass());  
        en.setCallback(this);  
        return en.create();  
    }  
      
    @Override  
    public Object intercept(Object obj, Method method, Object[] args, MethodProxy proxy)  
        throws Throwable  
    {  
        System.out.println("Before Advice");  
        Object result = proxy.invoke(target, args);  
        System.out.println("After Advice");  
        return result;  
    }  
  
}