AsmImpl/src/main/java/com/github/fishjava/HelloWorld.java at master · fish-java/AsmImpl · GitHub

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package com.github.fishjava;

import java.io.FileOutputStream;

import org.objectweb.asm.ClassWriter;

import org.objectweb.asm.FieldVisitor;

import org.objectweb.asm.MethodVisitor;

import org.objectweb.asm.Opcodes;

/**

* 看起其实也是非常简单，就是把class文件用一个数据结构来表示，然后修改它

public class HelloWorld extends ClassLoader implements Opcodes {

public static void main(final String args[]) throws Exception {

//直接将二进制流加载到内存中

//HelloWorld loader = new HelloWorld();

//Class<?> exampleClass = loader.defineClass("com.github.fish.Monkey", code, 0, code.length);

//通过反射调用main方法

//exampleClass.getMethods()[0].invoke(null, new Object[]{null});

}

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