Data processing method, device and system

Abstract

The invention discloses a data processing method, device and system. The data processing method comprises the steps that initial connection with a server is established; a full-quantity data inquiry request is sent to the server; full-quantity data from the server is received; incremental data from the server is received in a cache queue mode. By means of the method, device and system, a client can receive the real-time, reliable and safe data.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data transmission method, device and system. Background technique [0002] With the advent of Web 2.0, modern application systems carry increasing user requests. For users, the high responsiveness and strong interaction of the system are the key points of their experience in the process of using the system. Therefore, the front and back of the application system need There is a reliable message transmission method to enhance the core competitiveness of its application system. In Web applications, for the B / S (Browser / Server, browser / server) architecture and the C / S (Client / Server, client / server) architecture, the foreground is the browser and the client respectively, but the two The processing functions of the foreground itself of this architecture are limited. In the traditional mode, whether it is a browser or a client, its main job is to send requests, receive and analyz...

AI Technical Summary

Problems solved by technology

[0006] The ajax mechanism and the long polling mechanism simulate the mechanism of actively sending messages from the background to the foreground to a certain extent, but these two methods have certain defects

First of all, neither the ajax mechanism nor the long polling mechanism essentially solves the passive characteristics of the HTTP protocol mentioned above. They still establish HTTP connections continuously and wait for background processing.

Secondly, both of these methods are very resource-intensive

The ajax method requires fast processing speed and resources in the background, because the background needs to continuously receive inquiries sent by the foreground, and the long polling mechanism requires high concurrency in the background, because the background needs to hold for every Request request from the foreground On itself, when there are multiple Request requests in the front desk, it will occupy the resources of the background server very much

Although the use of the Websocket protocol solves the problem of the background actively sending requests to the front desk, real-time performance, reliability and security are very important in the financial transaction system. not fully guaranteed

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