Method and system for pushing data actively by server

Abstract

The invention discloses a method and a system for pushing data actively by a server. The method comprises the following steps that: a browser initiates a registering request to be connected the server and receive the data pushed by the server actively, and after the browser is registered successfully, a data channel for transmitting the data pushed actively is established between the browser and the server; the browser initiates a subscription request, wherein the subscription request contains type parameters of subscription data and identifiers for expressing subscription contents; and the server pushes the corresponding data to the browser actively by the data channel according to the subscription request. By the method and the system, the requirement of real-time data pushing of the browser can be met, the concurrency of an application system can be improved, and the performance consumption of the server can be reduced.

Description

technical field [0001] The present invention relates to the technical field of information system development, and more specifically, to a method and system for actively pushing data by a server. Background technique [0002] With the popularity of Web technology, more and more applications have changed from the original C / S (Client / Server, client / server area) mode to B / S (Browser / Server, browser / server) mode, enjoy With the various advantages brought by Web technology, such as: cross-platform, free client maintenance, crossing firewalls, good scalability, etc. In this mode, the user interface is implemented through the World Wide Web browser, and a very small part of the business logic is implemented in the front-end browser, but the main business logic is implemented on the server side. This greatly simplifies the client computer load, reduces the cost and workload of system maintenance and upgrading, and reduces the overall cost of users. [0003] However, browser-based...

AI Technical Summary

Problems solved by technology

[0018] However, for the Pushlet mode, although the polling rules are controlled by the server, the front-end polling mechanism is still adopted in principle. In order to improve the real-time push, the polling frequency must be increased (for example, every 2 seconds Polling once or less), which will significantly increase the pressure on the server; in addition, regardless of whether there is data push in the polling mechanism, it needs to continuously "request return" and waste a lot of network bandwidth

The contradiction between real-time and server performance is the main defect of pushlet

[0019] Compared with pushlet, the Bosh mode effectively reduces the burden on the server and saves network bandwidth, but the return rate of empty packets is still high in an environment with low push frequency, and the subscription control information and push data are returned in the same request , and the two usually belong to different topics, which is logically messy

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