Multi-thread two-dimensional code generation algorithm based on Web Workers

Abstract

The invention relates to the technical field of two-dimensional code generation, and discloses a multi-thread two-dimensional code generation algorithm based on Web Workers. The multi-thread two-dimensional code generation algorithm comprises the following steps that: a browser end receives a two-dimensional code generation request, and acquires two-dimensional code generation data according to the two-dimensional code generation request; encoding the two-dimensional code generation data, and taking the encoded data as two-dimensional code content information parameters; packaging the two-dimensional code content information parameter and a preset two-dimensional code parameter into a parameter object by usinga JavaScript main thread of the browser, and instantiating a Worker sub-thread; sending the parameter object in the JavaScript main thread to the Worker sub-thread; analyzing the received parameter object and calculating a corresponding two-dimensional code matrix by the Worker sub-thread; traversing the two-dimensional code matrix by the Worker sub-thread, and rendering the two-dimensional code by using a (rect) label of the SVG to obtain an SVG image of the two-dimensional code; and the Worker sub-thread sends the SVG image back to the JavaScript main thread, and the JavaScript main thread directly displays the two-dimensional code on an HTML page in an inline SVG mode.the multi-thread two-dimensional code generation algorithm improves the generation efficiency of the two-dimensional code.

Description

technical field [0001] The invention relates to the technical field of two-dimensional code generation, in particular to a multi-threaded two-dimensional code generation algorithm based on Web Workers. Background technique [0002] With the rapid development of the Internet and the Internet of Things and the popularity of smart terminal devices, QR codes, as an emerging information carrier and transmission tool, have also developed rapidly, playing an indispensable role in all walks of life, not only Applied in social networks, more widely used in business, payment and other service links. [0003] Two-dimensional codes record and store data information with the distribution of black and white alternating geometric figures on a two-dimensional plane according to certain design rules, and use white and black graphic symbols to represent computer The "0" and "1" binary bit streams use the black and white geometric patterns corresponding to the "0" and "1" binary to store and ...

AI Technical Summary

Problems solved by technology

The JavaScript-based two-dimensional code generation algorithm can generate two-dimensional codes without the help of third-party libraries or plug-ins, but because JavaScript is executed in a single thread, the JavaScript engine cannot execute other codes when it is cumbersome or has a large amount of calculation. JavaScript scripts, while the GUI rendering thread of the browser will also be in a waiting state, which may cause the browser to enter a state of suspended animation; the jQuery-based two-dimensional code generation algorithm can generate two-dimensional codes more conveniently than the JavaScript-based algorithm. Two-dimensional code, developers only need to import jQuery library files and two-dimensional code plug-ins, set two-dimensional code parameters to generate two-dimensional codes, but because HTML pages need to load jQuery library files and two-dimensional code plug-ins to generate the required two-dimensional code code, thereby increasing the response time of HTML pages

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