class loader hierarchy

Problem Overview: Each ClassLoader itself can only load classes in specific locations and directories separately, but ClassLoader is designed to be a delegate pattern that allows one classloader to delegate its parent class loader to load classes. So that the application can use the classloader of a certain child to the loading of classes in multiple locations and directories. This is like "son" besides can

Sounds very high-end, in fact, the general custom class loader does not require the user to implement the parsing process, as long as the responsible implementation of the acquisition class corresponding to the. class byte stream section is OK, excerpts from a deep understanding of Java Virtual Machine The vir

Most of the following are from Zhou Zhiming's in-depth understanding of Java virtual machines.The ClassLoader is an innovation in Java and one of the main reasons for Java's popularity, which was originally developed to meet the needs of Java applets.What is an applet? As a novice, do not know what the applet is a ghost, look at the explanation of Baidu Encyclopedia, should understand: Javaapplet is a small application written in Java language, can be embedded directly into the Web page, and can

System class LoaderThe system loader may be familiar with the ears, but in order to complete the point, let's simply say the system's ClassLoader.public class Test {public static void main (string[] args) {ClassLoader CL1 = Test.class.getClassLoader (). GetParent (). Getp Arent (); System.out.println (CL1); ClassLoader Cl2 = Test.class.getClassLoader (). GetParen

method is from top down, and this class * is equivalent to a local variable of course it must be declared first, then use the * New Inner3 (). print (); } } The basic responsibility of the class loader Java.lang.ClassLoader Java.lang.ClassLoader class is to find or generate its corresponding byte code

We know that Java bytecode files need to be loaded into memory by the JVM to execute, so how does this load mechanism? Things to do during the load phase: 1. Get a binary byte stream that defines this class through the fully qualified name of a class 2. Convert the static storage structure represented by this byte stream into the run-time data structure of the method area 3, generate a Java.lang.Class objec

The Java default class loader is used in a typical scenario, but sometimes you have to implement your own ClassLoader for some purpose, for example, to achieve the isolation of class libraries, for example, in order to achieve the hot-deploy reload feature. You need to define the class

http://blog.csdn.net/com360/article/details/14125683Java, there is a concept called "ClassLoader" (ClassLoader), it is the role of dynamic loading class files. There is a ClassLoader class in the standard Java SDK that allows you to load the desired class file, and each ClassLoader object must have a path to the class