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

        // TODO Auto-generated method stub

          //创建一个ServerSo查看特，用于监听客户端Socket的连接请求

           ServerSocket ss=new  ServerSocket(3000);

           while(true){

               //每当接收到客户端Socket的请求，服务器端也对应产生一个Socket，没接收到请求就等待。。

               Socket s=ss.accept();

               OutputStream os=s.getOutputStream();//服务器端产生的Socket获取输出流

               os.write("您好，您收到了来自服务器的祝福！\n".getBytes());

               os.close();

               s.close();

           }

    }

package com.example.simpleclient;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.net.Socket;

import java.net.UnknownHostException;

import android.app.Activity;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.widget.TextView;

public class MainActivity extends Activity {

     TextView text;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        text=(TextView) findViewById(R.id.text);

        new Thread(){

            @Override

            public void run() {

                // TODO Auto-generated method stub

                    try {

                        //建立连接到远程服务器的的Socket,Ip是服务器端PC的IP，测试环境是PC端服务器，手机当客户端，PC和手机要连接同一个局域网，PC和手机在同一网段

                        Socket socket = new Socket("192.168.88",3000);

                        //将Socket对应的输入流包装秤BufferedReader

                        BufferedReader br=new BufferedReader(new InputStreamReader(socket.getInputStream()));

                        String line=br.readLine();

                        text.setText("来自服务的数据："+line);

                        br.close();

                        socket.close();

                    } catch (UnknownHostException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                    } catch (IOException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                    }

            }

        }.start();

    }

}