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Description If you have read one of my previous articlesArticleAsp.net: building scalable comet web applications. You should be able to understand what I will write. I explained the comet technology and explained how to use Asp.net to build scalable applications. However, I think the previous article is a bit like the main line. It demonstrates enough technology, but not enough to include any usefulCode.
Get started with Comet and the simplest Java Demo, cometjavademo How can I receive new messages when I browse the Web page? The HTTP Protocol cannot be used by the server to send messages to the client. 1. Weibo and Forum posts. What should I do if I want to see the latest information? F5 refresh and it will be OK! 2. The above method is passive. If you do not refresh the page, you will not be able to see the message. One way for the server to activel
1. PrefaceWeb-side IM technology is not easy to implement due to limitations in browser design, and there are roughly 4 main web-end instant Messaging solutions: Traditional Ajax short polling, Comet technology, WebSocket Technology, SSE (Server-sent Events). This article will briefly introduce the principles of these 4 technologies, and point out their similarities and differences, advantages and disadvantages, and so on.2. OverviewThe 1996 IETF HTTP
ArticleDirectory Is node. js the best comet solution? If you are designing and selecting a comet server solution, this article will give you a more in-depth understanding of node. JS: Personal Understanding: 1) For comparison between node. js and netty/Mina, the author thinks netty is more advantageous. 2) in C/C ++/nginx/memcache, node. JS, and netty. The author chooses netty. Note:
My personal understanding is that it looks like a client can subscribe to a server-side event in a Web environment that notifies the client via events. If the server side is implemented with ASP.net, you can take advantage of the. NET event-driven mechanism, which is interesting, as shown in the following sample code. First look at the Web front-end JS code: code is as follows copy code JQuery (function ($) { function long_polling () { nbsp; $.getjson ('/
Getting started with Comet and the simplest Java Demo How can I receive new messages when I browse the Web page? The HTTP Protocol cannot be used by the server to send messages to the client. 1. Weibo and Forum posts. What should I do if I want to see the latest information? F5 refresh and it will be OK! 2. The above method is passive. If you do not refresh the page, you will not be able to see the message. One way for the server to actively push mess
Previously, in "reverse Ajax, Part 1: Introduction to Comet" (English version)ArticleI learned the "multipart XMLHttpRequest-based Comet" knowledge, and then implemented it using ASP. NET MVC. For details, see implementing comet Based on multipart XMLHttpRequest using ASP. NET MVC. Today I continue to learn about the comet
When browsing the Web page, suppose there is a new message, how to receive it? The HTTP protocol cannot be actively sent by the server to the client.1, Brush micro Bo, visit the forum bar, want to see the latest information how to do? F5 refresh a bit ok!2, the above one way is passive, assuming the user does not go to refresh the page, will not see the message. How to let the server actively push the message to the client browser, one way is to use setinterval Ajax timed refresh.So. The refresh
In B/S model Web applications, the client often needs to maintain continuous updates with the server. Such applications that require high timeliness include stock price queries, real-time commodity prices, automatically updated Twitter timeline, and browser-based chat systems (such as Gtalk. Due to the rise of Ajax technology in recent years, there have also been many implementation methods. This article will describe these methods and demonstrate them with jquery + tornado. It should be noted t
prepare anything special on the server side. It can be processed directly as an HTTP request. The disadvantage is that a large number of requests are wasted. What is comet?The Chinese meaning of comet is probably to indicate that this is a request with a long tail. Like Ajax, comet is a combination of a bunch of Technologies called
ArticleDirectory The bottom line Introduction and solution selection of comet Server Introduction to comet Server: A simple description is a push server with a persistent connection function that can push data to the client in real time. Comparison of solutions: After comparison between the five frameworks, the author finally chooses netty... Address: http://amix.dk/blog/post/19456#
Comet Technology PrinciplesFrom Wikipedia: Comet is a web-based technology that enables the server to deliver updated information to clients in real time, without requiring the client to make requests, there are two implementations, long polling and IFRAME streams.In short, a long polling technology based on existing HTTP protocols, all of which are the main reason for this technology is that the HTTP proto
Use Tomcat to implement Comet chat rooms based on iframe streaming First, no picture, no truth, first: This is a chat room Demo Based On Comet. Its function is similar to QQ chat. If there is a new message in the chat process, the server needs to push the message to the browser, So Comet technology can be used here. Comet
The original text comes from:Comet Technology PrinciplesFrom Wikipedia: Comet is a web-based technology that enables the server to deliver updated information to clients in real time, without requiring the client to make requests, there are two implementations, long polling and IFRAME streams.In short, a long polling technology based on existing HTTP protocols, all of which are the main reason for this technology is that the HTTP protocol is stateless
Blog Expert Benefits"Time-limited event" to build the album awardInterview Eiko: The eternal Way of the processwhen youth meet the Internet, can ignite your entrepreneurial dreamrecommend the gift--Find out the technology in your heart DanielJavaScript Ajax and Comet detailedCategory: JavaScript2012-12-24 17:39 367 People read comments (0) favorite reports XMLHttpRequest objects in IE5, XHR objects are implemented through ActiveX objects in the MS
This is a creation in Article, where the information may have evolved or changed. Goim is Mao Jian classmate writes the IM service, Pure Golang realizes, currently applies in the Bilibili product line. Recently wrote two projects anti-spam and advertising systems, are internal services, and long-connected IM class is very unfamiliar to me. Spare time study Goim code, quite inspired, such as layered design, data merge, timer optimization, object optimization and RPC implementation optimization,
" Server Push " technology is "Comet" based on HTTP long connections and no need to install plugins on the browser side . The implementation models for the two Comet applications are described below.AJAX-based long polling (long-polling) modeThe advent of AJAX makes it possible for JavaScript to invoke the XMLHttpRequest object to make an HTTP request, and the JavaScript response handler updates the disp
Comet is a new Web application architecture. In applications developed based on this architecture, the server actively sends messages to the client in asynchronous mode.ProgramPush data without explicitly sending requests from the client. The comet architecture is very suitable for event-driven web applications and applications that require strong interactivity and real-time performance, such as stock excha
Generally, web applications use ajax Round Robin to obtain server updates. However, the round-robin method increases the load on the server, and the data obtained by many requests is not updated. These requests are meaningless and only increase the load on the server. Using Comet techniques can solve the above problems to a certain extent. There are many implementations of Comet, most of which need to be im
Using Dwr's Comet (push) for a simple no-refresh multiplayer chat room, comet is a long-connected one. Usually we want to implement no refresh, and generally use Ajax. Ajax applications can solve this problem in two basic ways: one is to poll the server for updates every few seconds, and the server always opens a connection to the browser and sends it to the browser when the data is available. The first met
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