Abstract
As Web2.0 rapidly develops, B/S structure is increasingly used in applications. Many applications require higher conditions in being real-time. However, due to the limit of applying in communication modes of the B/S structure [1], B/S structure can’t meet the requirement. To solve the problem, solutions have emerged incessantly. This thesis first analyzes the reason of the problem, and tries to review existing solutions. Then performance, advantages and disadvantages are analyzed and summarized subsequently. This thesis mainly introduces the WebSocket protocol of HTML5 standard, and also compares it with polling’s performance. Finally, this thesis discusses the choices of push technology in concrete applications.
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