TCP
客户端：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
import java.io.BufferedReader;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.Socket;public class MyClient { public static void main(String[] args) throws Exception{ Socket socket = null; BufferedReader in = null; PrintWriter out = null; BufferedReader input = null; // 请求指定ip和端口号的服务器 socket = new Socket("127.0.0.1",3333); while(true){ in = new BufferedReader(new InputStreamReader(socket.getInputStream())); out = new PrintWriter(socket.getOutputStream(), true); // 接收控制台的输入 input = new BufferedReader(new InputStreamReader(System.in)); // out.println("this is client info!"); String info = input.readLine(); out.println(info); String str = in.readLine(); System.out.println("客户端显示--》服务器的信息：" + str); } //in.close(); //out.close(); }} |
服务端：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
import java.io.BufferedReader;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.ServerSocket;import java.net.Socket;public class MyServices { public static void main(String[] args) throws Exception{ ServerSocket ss = null; Socket socket = null; BufferedReader in = null; PrintWriter out = null; BufferedReader input = null; // 监听3333端口 ss = new ServerSocket(3333); // 等待接收客户端的请求 socket = ss.accept(); while(true){ // 获取连接对象的输入流 in = new BufferedReader(new InputStreamReader(socket.getInputStream())); // 获取客户端的输入信息 String str = in.readLine(); input = new BufferedReader(new InputStreamReader(System.in)); System.out.println("服务器显示-->客户端输入数据：" + str); out = new PrintWriter(socket.getOutputStream(),true); // 将数据输出到客户端 // out.println("hehe"); String info = input.readLine(); out.println(info); }// in.close();// out.flush();// out.close(); }} |
UDP
客户端：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
import java.net.DatagramPacket;import java.net.DatagramSocket;public class UDPClient { public static void main(String[] args) throws Exception { DatagramSocket ds = null; DatagramPacket dp = null; byte[] buf = new byte[1024]; ds = new DatagramSocket(3333); dp = new DatagramPacket(buf, 1024); // 接收数据，放入数据报 ds.receive(dp); // 从数据报中取出数据 String info = new String(dp.getData(),0, dp.getLength()); System.out.println("接收到的信息是：" + info); }} |
服务端：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
import java.net.DatagramPacket;import java.net.DatagramSocket;import java.net.InetAddress;public class UDPServer { public static void main(String[] args) throws Exception { DatagramSocket ds = null; DatagramPacket dp = null; // 构建发送对象 ds = new DatagramSocket(); // 将数据打包-->打成数据报 String info = "hello world!"; dp = new DatagramPacket(info.getBytes(), info.length(), InetAddress.getByName("localhost"),3333); // 发出数据报 ds.send(dp); }} |
以上这篇浅谈java的TCP和UDP编程(附实例讲解)就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
