使用TCP编程客户端代码运行起来报错

Question

本人是新手开始学习TCP编程：
如下是客户端的代码
```package Day23.Internet.TCP;

import java.io.IOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;

//TCP的客户端
public class Demo1Client {
//TCP的客户端使用步骤
public static void main(String[] args) throws IOException {

        //1.建立TCP的服务
        Socket socket = new Socket(InetAddress.getLocalHost(), 60000);
        //2.获取到对应的流对象（获取到Socket 的输出流对象）
        OutputStream outputStream = socket.getOutputStream();
        //3.利用输出流对案发把数据写出即可
        outputStream.write("服务器你好".getBytes());
        System.out.println("发送了！！");
        outputStream.flush();
        //4.关闭TCP服务
        socket.close();
        System.out.println("关闭了客户端！！");

}

}

以下是服务器的代码


```package Day23.Internet.TCP;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;

//TCP的服务端
//使用ServerSocket
public class Demo1Server {

    public static void main(String[] args) {

        try {
            // 1.建立TCP的服务端，并监听一个端口
            ServerSocket serverSocket = new ServerSocket(60000);
            // 2.获取输入溜对象，读取客户端发送的信息
            //ServerSocket并没有下面的方法  但是Socket有呀
            // serverSocket. getInputStream()
            //可以先利用ServerSocet的accept方法获取连接到的Socket对象
            Socket socket = serverSocket.accept();
            System.out.println("hehe");
            InputStream inputStream = socket.getInputStream();

            byte[] buf = new byte[1024];
            int length = inputStream.read(buf);
            System.out.println(new String());

            serverSocket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

运行起来后 报错如下（是客户端的问题）

 Exception in thread "main" java.net.ConnectException: Connection timed out: connect
    at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
    at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
    at java.net.PlainSocketImpl.connect(Unknown Source)
    at java.net.SocksSocketImpl.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at java.net.Socket.<init>(Unknown Source)
    at java.net.Socket.<init>(Unknown Source)

Answer 1

连接超时，看看网络是否能ping通