public class Request {
 private RequestContent rc;//请求主体
 public Request(RequestContent rc){
 this.rc=rc;
 }
 protected void start(){ //开始请求
 final Thread t=new Thread(new Runnable(){
  public void run(){
  try{
   rc.doSomeThing();//响应请求
  }catch (Exception e) {
   e.printStackTrace();
   rc.onFailure(); //如果执行失败
  }
  rc.onSuccess();//如果执行成功
  }}
 );
 t.start();
 }
}

abstract class RequestContent {
 void onSuccess(){  //执行成功的动作。用户可以覆盖此方法
 System.out.println("onSuccess");
 }
 void onFailure(){ //执行失败的动作。用户可以覆盖此方法
 System.out.println("onFailure");
 }
 abstract void doSomeThing(); //用户必须实现这个抽象方法，告诉子线程要做什么
}

 new Request(new RequestContent(){
  void doSomeThing(){
  System.out.println("doSomething");
  }
  void onSuccess(){
  System.out.println("override onSuccess");
  }
 }).start();