回显服务器（Echo Server）最简单的客户端服务器程序，不涉及到业务流程，只是对与 API 的用法做演示客户端发送什么样的请求，服务器就返回什么样的响应，没有任何业务逻辑，没有进行任何计算或者处理 0. 构造方法网络编程必须要使用网卡，就需要用到Socket对象创建一个 DatagramSocket 对象，之...

文章 2023-10-23 来自：开发者社区

UDP,TCP特点对比，DatagramPacket,SocketAddress的使用 ,UDP的API，如何编写一个简单的回显服务器及客户端，详细解释（本文内容较难，建议多次阅读，自己敲一敲）

一、传输层提供协议主要有两个：（两套有不同的API）1.UDP：无连接，不可靠传输，面向数据报，全双工2.TCP：有连接，可靠传输，面向字节流，全双工有/无连接，如同JDBC（看我之前写的里面），先创建一个DataSource,再通过DataSource创建Connection->(TCP编程，也存在这种类似建立连接的过程。客户端和服务器之间，使用“内存”保存对端信息～～，双方都保存这个信....

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更新时间 2024-10-12 09:18:44

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