Android-android与pc通过socket通信在真机上不能建立连接

Question

线程代码
public void run()
{
try{
Socket client=new Socket("192.168.1.101",8888);
InputStream in =client.getInputStream();
DataInputStream dis=new DataInputStream(in);
str=dis.readUTF();
tv.setText(str);
OutputStream out =client.getOutputStream();
DataOutputStream dos=new DataOutputStream(out);
dos.writeUTF("Android");
}

Answer 1

public void run()
{
try{
Socket client=new Socket("192.168.1.101",8888);
InputStream in =client.getInputStream();
DataInputStream dis=new DataInputStream(in);
str=dis.readUTF();
tv.setText(str);
OutputStream out =client.getOutputStream();
DataOutputStream dos=new DataOutputStream(out);
dos.writeUTF("Android");
}

你这里运行一次，socket就消失了，怎么会继续连接下去？？