new relic java agent

business class reference). Finally, the method call is made through the dynamic proxy class object.public static void Main (string[] args) { BookFacadeImpl1 bookfacade=new BookFacadeImpl1 (); bookfacadecglib cglib=new bookfacadecglib (); BOOKFACADEIMPL1 bookcglib= (BOOKFACADEIMPL1) cglib.getinstance (bookfacade); Bookcglib.addbook (); } Four: ComparisonA static

in spring, the principle of AOP is the dynamic proxy mechanism of Java, and the dynamic proxy is related to reflection, so we review the knowledge of reflection and dynamic agent. Reflex The JVM uses the class loader to load the. class file into the JVM's memory. The binary byte stream of the class file is converted to the RUN-TIME data structure of the method area, with information such as the version of

) {} catch (Throwable throwable) {throw new undeclaredthrowableexception (Throwable); }} public final void dosomething () {try {Super.h.invoke (this, M3, null); Return } catch (Error _ex) {} catch (Throwable throwable) {throw new Undeclaredthrowableexception (Throwable); }} public final String toString () {try {return (String) Super.h.invoke (this, M2, null); } catch (Error _ex) {} catch (Throwable

Proxy modeA typical dynamic agent creation process can be divided into the following four steps:1. Create your own call processor by implementing the Invocationhandler interface Ivocationhandler handler = new Invocationhandlerimpl (...);2. Create a dynamic proxy class by specifying a ClassLoader object and a set of interface for the proxy classClass clazz = Proxy.getproxyclass (classloader,

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

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

interface reference, because the dynamic agent of Java actually uses the incoming interface type to create a new class, so the hero type cannot be used to point to the created object in the code above. Can only be pointed to by the person or fightable type. Look at the source code can find this point.Second, the AOP agentOne way to implement AOP (aspect-oriented

Dynamic agent, usually through the generation of bytecode to complete, but the timing of the generation is different, and bytecode dynamic generation technology, not only for dynamic agents, such as jar package, hot swap and other technologies are dynamic byte code application.The library that generates bytecode, such as ASM, is basically operating in the format defined by the bytecode specification, which is relatively low-level, and the tool like Cg

This article describes the Java+nginx implementation of Pop, IMAP, SMTP mailbox Agent service, we use the environment for CENTOS7, Java program we run through the Eclipse exported war package under the Linux under Tomcat execution, see below: Environment Introduction: Hostname:java.iternalsoft.com ip:192.168.2.163 Roles:proxy Server Os:centos7 We modify the

The dynamic proxy provided by Java is an implementation of the "proxy mode". Introduction to Proxy mode: http://www.cnblogs.com/endlu/p/5169749.htmlStatic proxies have some drawbacks, writing a proxy class for each of the proxy classes can make the system bloated and inflexible. Dynamic proxies are dynamically generated at run time by a proxy class and proxy object. Solve the problem in this area. The so-called dynamic

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

Proxy modeBrief introduction:Instead of manipulating the actual object directly, the actual object is manipulated indirectly through the proxy object, and the specific user does not know the specificobject or the actual object.Static proxy1. Example1), by proxy classPackage Demo3;public class AA {public void Method () {System.out.println ("ADFADF");}}2), Agent classpublic class BB {Private Object AA;Public BB (Object aa) {Super ();THIS.AA = AA;}Public

); return null;} }When used:Import Java.lang.reflect.invocationhandler;import Java.lang.reflect.proxy;public class client{public static void Main (string[] args) { Realsubject realsubject = new Realsubject (); Invocationhandler handler = new Dynamicsubject (realsubject); class　　In this way, the Proxied object (Realsubject) can be dynamically changed at runtime, the inter

Action () { System.out.println ("========"); System.out.println ("========"); System.out.println ("This is the class being represented"); System.out.println ("========"); System.out.println ("========");} }Test Package com.lyz.design.proxy;/** * Test * @author Liuyazhuang * */public class Test {public static void main () { object obj = new Proxyobject (); Obj.action (); }} ResultThis is th

There are 2 implementations of Java dynamic Agents, Jdkdynamicaopproxy and Cglib2aopproxy.Spring's AOP is all used in this 2 implementation, JDK Dynamic agent is implemented by the internal reflection mechanism of Java, with Proxygenerator.generateproxyclass (... ) to generate the bytecode, the cglib dynamic proxy generates a subclass of the proxy class (so the f

Jenkins 2.19.4 Default No Launch agent via Java Web Start, can be set down by:1. Open "System Management"--"Configure Global Security"650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M01/8B/C7/wKioL1hY4hahDzHdAAE4BgIjEEI950.png-wh_500x0-wm_3 -wmp_4-s_1784546963.png "title=" Jenkins1.png "alt=" wkiol1hy4hahdzhdaae4bgijeei950.png-wh_50 "/> 2. TCP Port JNLP agents selected as "Random Selection", click "

Undeclaredthrowableexception (Throwable);}}@OverridePublic final String toString () {try {Return (String) Super.h.invoke (this, M2, null);} catch (Throwable throwable) {throw new Undeclaredthrowableexception (Throwable);}}}The resulting $proxy0 instance is then forced into the manager.When the Managerproxy.modify () method is executed, the Modify () method in the $proxy0 class is called.In the Modify method, invoke the Invoke () method of H in the pa

In fact, each pattern name indicates the role of the mode, proxy mode is more than one proxy class out, for the original object to do some operations, such as we rent the house when back to find intermediary, why? Because you do not have comprehensive information about the housing in the area, I hope to find a more familiar person to help you do, the agent here is the meaning. If we have a lawsuit, we need a lawyer, because the lawyer has expertise in

Java Dynamic Agent Initial solutionProxy mode: Simply speaking, it is a matter of another object to operate on behalf of. The simplest example, write an interface, a class to implement the method in this interface, but suddenly one day to add to the method such as logging, access permissions and other functions, then we can write another class to implement the method in the interface, and then add such as l

method, which defines some of the ways we want to invoke real objectsParameter args, which defines the parameters that are accepted when a method of a real object is calledMethod parsing:Static Object newproxyinstance (ClassLoader loader, classParameter loader, a ClassLoader object that defines which ClassLoader object to load on the generated proxy objectparameter interfaces, an array of interface objects, represents a set of interfaces that will be given to the object that needs the proxy, an