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meng.wu1
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Oct 9, 2022
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| package com.mirkowu.xsocekt; | ||
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| import java.net.DatagramPacket; | ||
| import java.net.DatagramSocket; | ||
| import java.net.InetAddress; | ||
| import java.util.Scanner; | ||
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| public class ClientDemo1 { | ||
| public static void main(String[] args) throws Exception { | ||
| System.out.println("=====客户端启动======"); | ||
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| // 1、创建发送端对象：发送端自带默认的端口号 | ||
| DatagramSocket socket = new DatagramSocket(); | ||
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| Scanner sc = new Scanner(System.in); | ||
| while (true) { | ||
| System.out.println("请说："); | ||
| String msg = sc.nextLine(); | ||
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| if("exit".equals(msg)){ | ||
| System.out.println("离线成功！"); | ||
| socket.close(); | ||
| break; | ||
| } | ||
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| // 2、创建一个数据包对象封装数据 | ||
| byte[] buffer = msg.getBytes(); | ||
| DatagramPacket packet = new DatagramPacket( buffer, buffer.length, InetAddress.getLocalHost() , 8888); | ||
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| // 3、发送数据出去 | ||
| socket.send(packet); | ||
| } | ||
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| socket.close(); | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| package com.mirkowu.xsocekt; | ||
|
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| import java.net.DatagramPacket; | ||
| import java.net.DatagramSocket; | ||
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| public class ServerDemo1 { | ||
| public static void main(String[] args) throws Exception { | ||
| System.out.println("=====服务端启动======"); | ||
| // 1、创建接收端对象：注册端口 | ||
| DatagramSocket socket = new DatagramSocket(8888); | ||
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| // 2、创建一个数据包对象接收数据 | ||
| byte[] buffer = new byte[1024 * 64]; | ||
| DatagramPacket packet = new DatagramPacket(buffer, buffer.length); | ||
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| while (true) { | ||
| // 3、等待接收数据。 | ||
| socket.receive(packet); | ||
| // 4、取出数据即可 | ||
| // 读取多少倒出多少 | ||
| int len = packet.getLength(); | ||
| String rs = new String(buffer,0, len); | ||
| System.out.println("收到了来自：" + packet.getAddress() +", 对方端口是" + packet.getPort() +"的消息：" + rs); | ||
| } | ||
| } | ||
| } | ||
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