如何改写单例模式？在连接请求这一块儿出现了多次重复连接，需要改为单例模式。

Question

如题： class InitSocketThread extends Thread {         public void run() {             super.run();             try {                 initSocket();             } catch (UnknownHostException e) {                 e.printStackTrace();             } catch (IOException e) {                 e.printStackTrace();             }         } }求大神帮助啊，急求！！！！

Answer 1

class MyThreadScopeData{
//将类变成单例的
private MyThreadScopeData(){}

public static MyThreadScopeData getThreadInstance(){
MyThreadScopeData instance = map.get();
if(instance==null){
instance = new MyThreadScopeData();
map.set(instance);
}
return instance;
}

private static ThreadLocal map = new ThreadLocal();

public void initSocket(){
initSocket();
}
}