【高级开发进阶】1.1.2 手写自定义类加载器

//继承ClassLoader类，重写findclass方法。
public class MyClassloader extends ClassLoader {

  private String path;
  private String classloaderName;

  public MyClassloader(String path,String classloaderName){
    this.path = path;
    this.classloaderName = classloaderName;
  }

  //用于寻找类文件
  @Override
  public Class findClass(String name){
    byte[] b =loadClassData(name);
    ret