Cache dynamic maintenance updating method and system

Abstract

The invention discloses a cache dynamic maintenance updating system and a method. The system comprises a client, a cache server and a remote server, wherein the client includes a browser, a cache unit and a cache management module, the cache management module is used for checking the cached records in the cache unit, and sending the cache recorded information to the cache server, and updating the content of the cache unit after receiving the notice from the cache server; the cache server is used for receiving the cache recorded information, requesting for validation to the remote server according to the cache recorded information, recording the cache state returned from the remote server, and noticing the cache management module when the cache state changes. Whether the cache records are expired and updated is checked through the cache server, and the purposes that timeliness and accuracy of the maintained or deleted cache are ensured and the smallest cache of the local client Web is ensured are achieved.

Description

technical field [0001] The present invention relates to a cache update method and system, in particular to a cache dynamic maintenance update method and system. Background technique [0002] A browser is a software that displays web server or file system files and enables users to interact with the above files. The browser is used to display text, images and other information on the World Wide Web or a local area network. The above text, images and other information can be hyperlinks to other websites, so that users can browse various information quickly and easily. The webpage is generally in the format of HTML (Hyper Text Mark-up Language, hypertext language), and common browsers on the user terminal include Internet Explorer, Firefox, etc. It can be seen that the browser is a commonly used client program. [0003] Currently, mainstream browsers generally have a local cache mechanism. When the static files that have been visited are accessed through the local cache, the ...

AI Technical Summary

Problems solved by technology

[0006] However, the above solutions have the following disadvantages: 1. The retention and deletion of a cache record is determined only based on the set cache maximum storage space or unlimited storage space, which may lead to incorrect deletion and retention of the cache. Strictly speaking, deletion and retention Not very accurate, because each cache has its own validity period; 2. The local machine checks whether the cache needs to be updated, and often wastes the CPU resources and network resources of the local machine

[0007] In addition, the current caching mechanism generally allows the browser to provide an offline caching mechanism to ensure that the offline cache provided by the specified website can be pre-cached and used in an offline state. Caching is often done by the website, and only offline network resources with the same origin attributes as the website

[0008] To sum up, it can be seen that the caching mechanism of the prior art may cause incorrect deletion and retention of the cache, waste the CPU resources and network resources of the local machine, and limit the offline cache. Therefore, it is necessary to propose improved technical means to solve the problem. this question

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