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After the data interaction between the client and the server is complete, you usually need to disable the network connection. For the server, you need to disable socket and serversocket. After the socket is closed, the client does not immediately

1. TCP Connection To understand the socket connection, you must first understand the TCP connection. The mobile phone can use the internet function because the mobile phone bottom layer implements the TCP/IP protocol, which enables the mobile

Original post address: http://www.pcvz.com/Program/Programs/CCC/CCCnetprogram/Program_56380.html C # Is a new language launched by Microsoft with vs.net. As an emerging language, it has strong C ++ and rad features such as VB. Moreover,

1 Introduction The Windows Sockets Specification defines a set of network programming interfaces in Microsoft Windows based on the socket interface popular in U. C. Berkeley University bsd unix. It not only contains the familiar Berkeley socket

Networks are classified from bottom to top Physical Layer, data link layer, network layer, transmission layer, Session Layer, presentation layer, and application layer. Through preliminary understanding, I know that the IP protocol corresponds to

When I learned the basics of the university network, the network is divided from bottom to bottom into the physical layer, data link layer, network layer, transmission layer, Session Layer, presentation layer and application layer. Through

1. Introduction to TCPTCP provides a connection-oriented and reliable byte stream service. The connection means that two TCP applications must establish a connection before exchanging data with each other. TCP provides reliability in the following

IOS Socket programming I. Various network protocols: TCP/IP, SOCKET, HTTP, etc.The layer-7 network consists of the physical layer, data link layer, network layer, transmission layer, Session Layer, presentation layer, and application layer.The

When using socket for TCP/IP programming, data transmission and receiving are inevitable, the most commonly used is the socket synchronous function receive (or its overload ): Public   Int Receive ( Byte [] Buffer, Int Offset, Int

Let's take a look at the changes in HTML 5's current web communication. HTML 5 web socket defines a full-duplex communication channel through a single socket on the web, which significantly improves web communication. HTML5 websocket:

When transmitting data, we can only use the (Transport Layer) TCP/IP protocol. However, without the application layer, we cannot identify the data content. If we want to make the transmitted data meaningful, you must use the application layer

Note memory when using asynchronous socket Spike This is an article I read online, the original address: http://morganchengmo.spaces.live.com/blog/cns! 9950ce918939932e! 3022. Entry In. net, the memory is hosted by the system, and programmers do

I recently learned about socket and have some experiences. As a friend who just entered the door, I wrote it to the door.This tutorial will step by step from a simple communication program to the last chat system containing a database similar to QQ.

Computer Networks, Group messages, and ProtocolsA computer network is composed of a group of machines connected through communication channels. We call these machines host machines and routers. A host is a computer that runs applications. A router

I believe that many new online mobile phone developers want to know what is the difference between HTTP and socket connections, and hope that they can help beginners through their own simple understanding. 1. TCP Connection To understand the socket

In HTML5 specifications, my favorite Web technology is the rapidly becoming popular websocket API. Websocket provides a popular technology to replace the Ajax technology we have been using over the past few years. This new API provides a method to

The socket. Io official website uses express to implement the simplest im instant chat. Today we use Koa to implement it. ### Framework preparation Make sure that you have installed nodejs and NPM locally. Use Koa to require node version> 7.6

(1) Analysis of TCP/UDP, socket, HTTP and FTP TCP/IP is a protocol group, which can be divided into three layers: network layer, transport layer and application layer:Network Layer: IP, ICMP, ARP, RARP, and BOOTPTransport Layer: TCP and

TCP, HTTP, and SOCKET connection principle 1. TCP connection to a mobile phone can use the networking function because the mobile phone underlying layer implements the TCP/IP protocol, which enables the mobile terminal to establish a TCP connection

This article mainly introduces how to use socket. io in node express. If you need it, refer to the server. js code on the server. The Code is as follows: Var express = require ("express ");Var http = require ("http ");Var sio = require ("socket.