# 1.服务端
~~~
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
public class Server {
public static void main(String[] args) {
System.out.println("服务端启动");
try {
// ServerSocket 对象进行服务器端口注册
ServerSocket serverSocket = new ServerSocket(9999);
// 监听socket链接请求
Socket socket = serverSocket.accept();
// 从socket中获取字节输入流对象
InputStream inputStream = socket.getInputStream();
//把字节输入流包装成缓存字节输入流
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
String msg;
while ((msg=bufferedReader.readLine())!=null){
System.out.println("服务器收到信息："+msg);
}
}catch (Exception e){
e.fillInStackTrace();
}
}
}
~~~
# 2.客户端
~~~
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
public class Client {
public static void main(String[] args) {
try {
// 创建socket链接请求
final Socket socket = new Socket("127.0.0.1",9999);
// 从socket中获取字节输出流对象
final OutputStream socketOutputStream = socket.getOutputStream();
//把字节输出流包装成打印流
final PrintStream printStream = new PrintStream(socketOutputStream);
printStream.print("hello word,服务器");
printStream.flush();
}catch (Exception e){
e.fillInStackTrace();
}
}
}
~~~
