new relic java agent

void Afterdoing () {System.out.println ("afterdoing ()");}}Package Com.liujun.test;import Java.lang.reflect.proxy;import Com.liujun.dynamicproxy.proxyhandler;import Com.liujun.dynamicproxy.realstudent;import Com.liujun.dynamicproxy.studenti;public class DynamicProxyTest {public static void Main (string[] args) {//Real object Studenti student=new realstudent ();//Agent Processor Proxyhandler Proxyhandler=

In the dynamic agent mechanism of Java, there are two important classes or interfaces, one is Invocationhandler (Interface), the other is proxy (class), and this class and interface is necessary to implement our dynamic proxy. First, let's take a look at how the Java API Help document describes these two classes:Invocationhandler:Invocationhandler is the interfac

Transferred from: http://www.cnblogs.com/xiaoluo501395377/p/3383130.htmlWhen we learn spring, we know that spring has two main ideas, one is the IOC, the other is AOP, and for IOC, dependency injection doesn't have to be said, and for spring's core AOP, we not only need to know how to satisfy our function through AOP, What we need to learn is how the underlying is a principle, and the principle of AOP is the dynamic agent mechanism of

Proxy mode refers to providing a proxy object to an object that the user does not directly access to the original object but indirectly through the proxy object.We can use the proxy pattern to implement aspect-oriented programming (AOP), which is used by dynamic agents to weave the slice functionality into the target method without intruding into the caller's business code.or using proxy mode to implement remote procedure call (RPC), the caller invokes the proxy method as if it were a local meth

Java Dynamic Agent code recently learned Java agent, it feels very magical, especially dynamic agent, the function is really powerful, if there is a dynamic agent, then the hacker is not a more development step ... Implementation

When we learn spring, we know that spring has two main ideas, one is the IOC, the other is AOP, and for IOC, dependency injection doesn't have to be said, and for spring's core AOP, we not only need to know how to satisfy our function through AOP, What we need to learn is how the underlying is a principle, and the principle of AOP is the dynamic agent mechanism of Java, so this essay is a review of the dyna

) {//do an intercept if (Cash /** 演示：代理模式* 代理：代理对象主要用来拦截目标业务对象（被代理对象）的访问。* A：代理对象要持有真实业务对象。（通过构造函数接收业务对象，并用成员变量记录）* B：代理对象要和真实业务对象，具备相同的行为方法(实现相同接口)* C：代理对象拦截对真实对象的访问，可以修改访问的参数、返回值，甚至拦截访问* 代理模式与装饰模式区别* A：代理模式侧重与拦截，装饰模式侧重与加强* B：Java中自带的代理中，只能对接口进行代理。装饰只需要与被装饰类有共同父类。*/public class ProxyDemo01 {public static void main(String[] args) {// 创建被代理对象Xulaoshi Xulaoshi = new Xulaoshi();// 创建代理对象A a= new A(Xulao

() + "++++++"); return result; }} Package Com.example.cglib;import Com.example.service.userservice;import com.example.service.impl.userserviceimpl;/** * Test Cglib */public class Runcglib {public static void main (string[] args) {Cglibproxy cglibproxy = new Cglibproxy (); UserService UserService = (userservice) cglibproxy.getinstance (New Userserviceimpl ()); Userservice.getname (1

)); } Is.close (); Of course, in Java, there is proxy agent to use the Internet, at this time using the URL (HTTP) does not involve the socket (TCP), see the following codeJava code Set up Proxy System.setproperty ("Http.proxyset", "true"); System.setproperty ("Http.proxyhost", "10.1.2.188"); System.setproperty ("Http.proxyport", "80"); Direct access to Destination address URL url

1. Dynamic Agent ConceptA dynamic agent is a program that automatically creates a proxy object in place of the agent's object to perform the corresponding operation during operation. In the dynamic agent mechanism of Java, there are two important classes or interfaces, one is the Invocationhandler interface and the oth

Configuring the Domain for the Java EE agent creates a database SchemaBefore configuring the Java EE agent, you must ensure that the appropriate scheme is created in the data. Repository Creation Utility created the warehouse automatically when it was created. Refer to Using Repository Creation utility to create the ar

Dynamic Agent for JavaProxy modeProxy mode is a common Java design pattern, his characteristic is that the proxy class and the delegate class have the same interface, the proxy class is mainly responsible for the delegate class preprocessing messages, filtering messages, forwarding messages to the delegate class, and post-processing messages. There is usually an association between the proxy class and the d

The proxy, as the name implies, is an intermediate layer, when we want to use a method, not directly call, but tell the agent, let the agent for us to request the method, and return the result. In this process, we only know that the agent executes and returns the result of our operation, and that there is no other action that does not know, but this does not matt

The proxy is often used in Java coding, and the agent is divided into static agent and dynamic agent. Where dynamic proxies can implement AOP in spring. First, static agent: before the program runs, the programmer will write proxy, and then compile, that is, before the prog

or more interfaces, spring will create a JDK dynamic proxy that implements each interface. If the target class does not implement an interface, Spring uses Cglib to dynamically create a new class, which is the subclass of the target ("extends"). This leads to an important difference: The JDK proxy cannot be converted to the original target class because it is just a dynamic proxy that implements exactly the same interface as the target. And cglib can

subject.public class Realsubject extends subject{Public Realsubject () {}public void request () {System.out.println ("from real subject.");}}Agent role:public class Proxysubject extends subject{Private Realsubject Realsubject; Attributes with a real role as a proxy rolePublic Proxysubject () {}public void request () {//The method encapsulates the request method of the Real objectPrerequest ();if (Realsubject = = null) {Realsubject =

object bind (object target) { this.target = target; //Get proxy object return Proxy.newproxyinstance (Target.getclass (). getClassLoader (), Target.getclass (). Getinterfaces (), this ); //To bind the interface (this is a flaw, cglib compensates for this flaw) } @Override /** * Call method */ Public object Invoke (Object proxy, Method method, object[] args) throws Throwable { Object result=null; System.out.println ("things start"); //Execution Method Result=

When we learn spring, we know that spring has two main ideas, one is the IOC, the other is AOP, and for IOC, dependency injection doesn't have to be said, and for spring's core AOP, we not only need to know how to satisfy our function through AOP, What we need to learn is how the underlying is a principle, and the principle of AOP is the dynamic agent mechanism of Java, so this essay is a review of the dyna

Reproduced in this article + personal understanding　First, IntroductionWhen we learn spring, we know that spring has two main ideas, one is the IOC, the other is AOP, and for IOC, dependency injection doesn't have to say much, and for spring's core AOP, Not only do we need to know how to satisfy our function through AOP, what we need to learn is how the underlying is a principle, and the principle of AOP is the dynamic agent mechanism of

Dynamic Agent for JavaProxy mode is a common Java design pattern, his characteristic is that the proxy class and the delegate class have the same interface, the proxy class is mainly responsible for the delegate class preprocessing messages, filtering messages, forwarding messages to the delegate class, and post-processing messages. There is usually an association between the proxy class and the delegate cl