使用 cglib 代理的实现 博客分类： cglib cglib

package com.xiangsoft.proxytraining.bean;

import java.lang.reflect.Method;
import java.text.Annotation;
import java.util.Collections;
import java.util.List;

import com.xiangsoft.anno.Annotation1;

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


/**
 * This module is automatically included as part of the Tapestry IoC Registry, it's a good place to
 * configure and extend Tapestry, or to place your own service definitions.
 */
public class CglibBean
{
	public <T> T proxyObject(Class<T> T)
	{
		Enhancer enhancer = new Enhancer();
		enhancer.setSuperclass(T);
		enhancer.setInterfaces(T.getInterfaces());
		enhancer.setCallback(new CallbackObj());

		return (T) enhancer.create();
	}
	
}

class CallbackObj implements MethodInterceptor{

	public Object intercept(Object obj, Method method, Object[] args,
			MethodProxy proxy) throws Throwable {
		
		
		Annotation1 at =  method.getAnnotation(Annotation1.class);
		if(at == null){
			proxy.invokeSuper(obj, args);
			return null;
		}
		
		
		System.out.println(method.getName());
		System.out.println(args);
		System.out.println(proxy.getSuperName());
		
		return null;
	}
	
}

package com.xiangsoft.proxytraining.proxy;

import com.xiangsoft.anno.Annotation1;


/**
 * Start page of application proxytraining.
 */
public class Cat implements Eatable
{

	@Override
	public void eat() {
		System.out.println("cat eat...");
	}
	
	@Annotation1
	public void jump() {
		System.out.println("cat jump...");
	}
}

package com.xiangsoft.anno;

import static java.lang.annotation.RetentionPolicy.RUNTIME;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

@Retention(RUNTIME)
@Target(ElementType.METHOD)
public @interface Annotation1 {
	/**
    *
    */
	String name() default "";

	String action() default "Hello World";
	/**
    *
    */
	boolean required() default true;
}

package com.xiangsoft.proxytraining.proxy;

public interface Eatable {
	
	public void eat();
}

package com.xiangsoft.mainborad;

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

import com.xiangsoft.proxytraining.bean.CglibBean;
import com.xiangsoft.proxytraining.proxy.Cat;

public class Mainboard extends JFrame{
	Cat mCat = null;
	private JPanel contentPane;
	
	public static void main(String[] args) {
			Mainboard mb = new Mainboard();
			mb.setVisible(true);
	}
	
	public Mainboard(){
        setTitle("设置窗体大小");// 设置窗体标题
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 默认关闭方式
        setSize(400,300);// 设置窗体大小
        contentPane=new JPanel();// 创建内容面板
        contentPane.setLayout(new BorderLayout(0,0));
        setContentPane(contentPane);// 设置内容面板
        JLabel label=new JLabel("宽度400，高度300"); // 创建标签控件
        contentPane.add(label,BorderLayout.CENTER);// 添加标签控件到窗体
        
        JButton jb = new JButton("代理测试");
        
        jb.addActionListener(new ActionListener(){

			@Override
			public void actionPerformed(ActionEvent e) {
				CglibBean bean = new CglibBean();
				mCat =  bean.proxyObject(Cat.class);
				mCat.eat();
				System.out.println("action 1");
				mCat.jump();
				System.out.println("action 2");
			}});
        
        contentPane.add(jb,BorderLayout.EAST);
        
    }
}

引用

<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0">
    <properties>
    </properties>
   
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.xiangsoft</groupId>
    <artifactId>proxytraining</artifactId>
    <version>1.0.1</version>
    <packaging>jar</packaging>
    <name>proxytraining</name>
   
    <dependencies>
       <dependency>
<groupId>cglib</groupId>
<artifactId>cglib-nodep</artifactId>
<version>2.2</version>
</dependency>
    </dependencies>
   
    <build>
        <finalName>proxytraining</finalName>
        <plugins>
        <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-assembly-plugin</artifactId>
           <executions>
           <execution>
           <id>package-jar-with-dependencies</id>
           <phase>package</phase>
           <goals>
           <goal>single</goal>
           </goals>
             <configuration>
                     <appendAssemblyId>false</appendAssemblyId>
                     <descriptorRefs>
                     <descriptorRef>jar-with-dependencies</descriptorRef>
                     </descriptorRefs>
               </configuration>
           </execution>
           </executions>
        </plugin>
       </plugins>
    </build>


</project>