The difference between JDK dynamic agent and Cglib dynamic agent

JDK Dynamic Agent

1. A class that can only be proxied to implement an interface

2. A class that does not implement an interface cannot implement a dynamic proxy for the JDK

Cglib Dynamic Agent

1. For the class to implement the proxy

2. Produces a subclass of the specified target class, intercepting all calls to the parent class method through the method volley technique

Implementing dynamic proxies with Cglib

Package Com.imooc.cglib;public class Train {public void Move () {System.out.println ("train in Transit");}}

import java.lang.reflect.method;import net.sf.cglib.proxy.enhancer;import  net.sf.cglib.proxy.methodinterceptor;import net.sf.cglib.proxy.methodproxy;public class  cglibproxy implements methodinterceptor {  private enhancer enhancer =  new enhancer ();   public object getproxy (class clazz) {  // Set class   enhancer.setsuperclass (Clazz) for creating subclasses,   enhancer.setcallback (this);     return enhancer.create (); }  /*  *  intercepts calls to all target class methods   * obj : Instance of the target class   * m: Reflection Object   * args: Method parameter   * proxy: instance of the proxy class   *    *  (non-javadoc)   *  @see  net.sf.cglib.proxy.methodinterceptor# Intercept (java.lang.object, java.lang.reflect.method, java.lang.object[],  Net.sf.cglib.proxy.MethodProxy)   */  @Override  PUBLIC&NBSp;object intercept (object obj, method m, object[] args,    Methodproxy proxy)  throws Throwable {  // TODO Auto-generated  Method stub    system.out.println ("log Start"); Method of calling parent class by   //proxy class    Proxy.invokesuper (Obj, args);   system.out.println ("Log End");   return null; }

Package Com.imooc.cglib;public class Client {public static void main (string[] args) {Cglibproxy proxy = new Cglibproxy (  );  Train t = (Train) proxy.getproxy (Train.class); T.move (); }}

The difference between JDK dynamic agent and Cglib dynamic agent