网络编程_服务器给客户端一个反馈案例

待我称王封你为后i 2022-06-17 00:51 211阅读 0赞

package cn.itcast_07;
    
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.net.ServerSocket;
    import java.net.Socket;
    
    /*
     * TCP协议接收数据:
     * 		A:创建接收端Socket对象
     * 		B:监听客户端
     * 		C:获取输入流,显示到客户端
     * 		D:返馈数据
     * 		D:释放监听资源
     */
    public class ServerDemo {
    	public static void main(String[] args) throws IOException {
    		// 创建接收端Socket对象
    		ServerSocket ss = new ServerSocket(12306);
    
    		// 监听客户端
    		Socket s = ss.accept();
    
    		// 获取输入流
    		InputStream is = s.getInputStream();
    
    		byte[] bys = new byte[1024];
    		int len = is.read(bys);
    		String server = new String(bys, 0, len);
    		System.out.println("server:" + server);
    
    		// 获取输出流
    		OutputStream os = s.getOutputStream();
    		os.write("嘿,tcp,你的数据我收到了".getBytes());
    
    		// 释放监听资源
    		s.close();
    	}
    }

package cn.itcast_07;
    
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.net.Socket;
    
    /*
     * TCP协议发送端:
     * 		A:创建发送端对象Socket
     * 		B:获取输出流,发送数据
     * 		C:获输入流,接收返馈数据并显示到控制台
     * 		D:释放资源
     */
    public class ClientDemo {
    	public static void main(String[] args) throws IOException {
    		// 创建发送端对象Socket
    		Socket s = new Socket("192.168.31.165", 12306);
    
    		// 获取输出流
    		OutputStream os = s.getOutputStream();
    		os.write("hello,tcp,我来了".getBytes());
    
    		// 获取输入流
    		InputStream is = s.getInputStream();
    		byte[] bys = new byte[1024];
    		int len = is.read(bys);
    		String client = new String(bys, 0, len);
    		System.out.println("client:" + client);
    
    		// 释放资源
    		s.close();
    	}
    }