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UDP协议：用户数据报协议(User Datagram Protocol)UDP是无连接通信协议，即在数据传输时，数据的发送端和接收端不建立逻辑连接。简单来说，当一个台计算机向另外一台计算机发送数据时，发送端不会确认接收端是否存在，就会发出数据，同样接收端在收到数据时，也不会向发送端反...

【Java 网络编程】UDP 服务器客户端通信 ( DatagramSocket | DatagramPacket | UDP 发送数据包 | UDP 接收数据包 | 端口号分配使用机制 )

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