Data synchronization method

Abstract

The invention discloses a data synchronization method, which relates to the technical field of computer network application. The method includes the following steps: (1) data is preprocessed; (2) data is checked and locked; (3) local data operation is carried out: data service checking, modifying and deleting and local file creating, modifying, saving and deleting are carried out in a local database; (4) network data is synchronized and unlocked; and (5) when a local server is offline or is disconnected from the Internet, to-be-synchronized servers need to synchronize data after the local server goes online; and when the local server is online, data is updated, a synchronization instruction is checked, the servers are locked, and data is synchronized between the servers. All possible situations in synchronous interaction of data are analyzed according to corresponding system deployment. For each situation, a corresponding processing flow is given to request data and save synchronous data. Timely synchronous interaction of data is ensured.

Description

technical field [0001] The invention relates to the technical field of computer network applications, in particular to a data synchronization method. Background technique [0002] With the rapid development of economy and information construction, the group company is also growing rapidly. Originally, only realizing the office automation of its headquarters and directly affiliated units cannot meet the needs of the group. Therefore, with the realization of office automation in the whole group, , a problem arises: each branch company in the group has to build its own system according to its own business characteristics. The interaction and sharing of basic data, the synchronization of interactive information and shared data is one of the key issues that must be solved in the group system of distributed deployment, that is, how to select and control the corresponding data to be synchronized to the corresponding branch server, which also involves the current When the server is...

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Problems solved by technology

[0002] With the rapid development of economy and information construction, the group company is also growing rapidly. Originally, only realizing the office automation of its headquarters and directly affiliated units cannot meet the needs of the group. Therefore, with the realization of office automation in the whole group, , a problem arises: each branch company in the group has to build its own system according to its own business characteristics. The interaction and sharing of basic data, the synchronization of interactive information and shared data is one of the key issues that must be solved in the group system of distributed deployment, that is, how to select and control the corresponding data to be synchronized to the corresponding branch server, which also involves the current When the server is restarted or the network connection is interrupted, if data changes and synchronization is required, how to perform delayed synchronization and resolve data conflicts caused by synchronization

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