ajax websocket

WebSocket protocol is a new network protocol based on TCP, which realizes the bidirectional traffic between client and server, and allows the service side to send information to the client actively. WebSocket is an agreement in the HTML5.HTTP protocol with WebSocket protocol:The HTTP protocol has only 1.0 and 1.1 two versions,The HTTP protocol is a stateless resp

nature. What is passive, in fact, the server can not actively contact the client, can only be initiated by the client.At the same time byCustomer Unsolicited Inquiry, converted to the server (push) when there is information to send (of course, the client is still waiting to send the message over. ), when no information is given to the operator (Nginx), do not need to occupy their own speed is slowCustomer Service (Handler)The--------------------As for how to use

I. AgreementWebSocket is a protocol of Full-duplex communication between client and server based on TCP, which is defined in HTML5 and is also one of the basic specifications of the next generation WebApp. It broke through the previous limitations of Ajax, the key is real-time, the server can actively push content to the client! Possible applications are: Multiplayer online games, instant chat, real-time monitoring, Remote Desktop, news server and so

1. What is a socket? What is WebSocket?What's the difference between the two people who have heard about WebSocket technology for the 1th time? WebSocket is the implementation of just porting the socket concept to the browser?We know that two applications (processes) in the network need to communicate with each other at full duplex (that is, both sides can send m

Before we introduce the main body, let me introduce the background and principle of websocket: Background In the browser can only achieve one-way communication through HTTP, comet can simulate two-way communication to some extent, but the efficiency is low, and need the server to have better support; The sockets and Xmlsocket in Flash enable true two-way communication, and you can use these two features in JavaScript with Flex

WebSocket initiates a single request, the server does not need to wait for the customer service side, the client at any time can also send messages to the server, reducing the delay in polling time. The difference between polling and WebSocket. Once the resume is connected, the server can send the client multiple times.HTTP-based real-time messages are quite complex, and the state of maintaining a reply in

Create a websocket server instance with python, and share the websocket with python. I. Start Using python to implement websocket server, you can display the log information of the remote server in real time on the browser. A web Version Release System was developed before, but the system did not view logs online. After each release, You need to log on to the ser

HTML5-WebSocket to achieve chat room example, websocket to achieve chat room The traditional way to implement chat rooms on Web pages is to request the server to obtain related chat information at intervals. However, the websocket function brought about by html5. because websocket allows a connection to the server for

Original address: http://www.ibm.com/developerworks/cn/java/j-lo-WebSocket/WebSocket Past LifeAs we all know, the interactive process of WEB application is usually the client sends a request through the browser, the server side receives the request to process and returns the result to the client, the client browser presents the information, this mechanism is not very frequent for the information change appl

First, WebSocket Overview The WebSocket protocol is based on the TCP protocol, not the HTTP protocol.As follows:ws://127.0.0.1 or wss://127.0.0.1 is the websocket request.Note: ws represents WebSocket protocol, WSS represents an encrypted WebSocket agreement. The

Chat room high frequency, low latency fully meet the characteristics of websocket, so chat room use websocket again fit.Chat room function is not much more than the previous section of code, mainly in the handshake phase of the user's session to do processing, the user's message distribution and processing.Handshake phase handshakeinterceptor needs to be handled Public classHandshakeinterceptorextendshttpse

The recent integration of WebSocket into the project, open Web pages will always encounter such errors.There are 3 reasons for saying this online, but they are not for me, but they are also recorded.1.struts2 intercepted the WS request. This invocation can attempt to empty the Web. XML, which is the problem if it can be connected. At this point, add the following in the Struts.xml configuration file:name= "Struts.action.excludePattern" value= "ws://*

WebSocket is a simple demo program based on javaweb + tomcat, and websocketjavaweb As required by the project, after the frontend initiates a request to the background, the background must be divided into multiple steps for relevant operations, and the time required for completing each step cannot be determined. If ajax is used to repeatedly access the background to obtain real-time data, it is obviously no

WebSocket initiates a single request, the server does not need to wait for the customer service side, the client at any time can also send messages to the service side, reduce the polling time delay. After a connection has been made, it can be sent multiple times to the client. Is the difference between polling and WebSocket.HTTP-based real-time messages are quite complex, maintaining a state of call in a stateless request adds complexity, and cross-d

This article mainly explains how to set up a simple chat room using php + websocket. for details about php and websocket, please refer to those who need it. This article mainly explains how to set up a simple chat room using php + websocket. for details about php and websocket, please refer to those who need it. This

I. WebSocket Brief INTRODUCTION WebSocket protocol is HTML5 a new protocol. It implements the browser and server Full-duplex communication (Full-duplex). A handshake at the beginning requires an HTTP request to complete the handshake. With the development of Internet, the traditional HTTP protocol has been difficult to meet the increasingly complex requirements of web applications. In recent years, with t

This article describes the PHP based on WebSocket to build a simple chat room practice. Share to everyone for your reference. Specifically as follows:1. Preface There is a simple chat room in the company game, understand after know is node+websocket do, think of PHP also to do a simple chat room. So collect all kinds of information to look at the documents, find examples of their own also wrote a simple ch

Recently in the websocket of a timely message communication, and then go online to download the example of others. Environment: 1.7jdk+,tomcat7+ The main imported two packages for Tomcat: Catalina.jar, Tomcat-coyote.jar And then put the demo into the project to go, pop-up box is unable to connect, the beginning did not notice, finally thought, is websocket sent the request not to the background. The path

[This article is original, if reproduced, please indicate the source http://blog.csdn.net/yl02520/article/] WebSocket is based on TCP like the HTTP protocol, so they are all reliable protocols, and the WebSocket send function that Web developers invoke is eventually transmitted through TCP's system interface in browser implementations. WebSocket and HTTP protoco

HTML5 has many notable new features, such as Canvas, local storage, multimedia programming interfaces, WebSocket, and so on. Although everyone is very enthusiastic about it, I personally think it requires the support of other platforms to truly "fire ". I used to explain in detail other methods such as ajax-based "polling" and "long polling" during web communication. Round robin: This is the earliest soluti