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Itemized data compressing and packing method

A data compression and entry technology, which is applied in electrical digital data processing, special data processing applications, instruments, etc. It can solve the problem of difficulty in applying multiple packaged data files at the same time, data security cannot be effectively guaranteed, and it is not convenient to replace application data, etc. problem, to facilitate debugging and development, reduce file size, and increase file compression ratio

Inactive Publication Date: 2017-03-22
CHENGDU JUNQIAN INFORMATION TECH CO LTD
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Problems solved by technology

In the commonly used data packaging technology now, there is no good solution to the expansion problem of data index storage, and when reading data, the data needs to be read sequentially, and the reading volume is large. It is not convenient to replace the application data during development, and it is difficult to simultaneously Application of multiple packaged data files can be problematic, and the file compression rate is low, and data security cannot be effectively guaranteed

Method used

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  • Itemized data compressing and packing method
  • Itemized data compressing and packing method

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Embodiment Construction

[0021] In order to better understand the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] An entry-based data compression and packaging method of the present invention includes a packaging process and a data reading process; wherein, the packaging process is as follows:

[0023] S1. Initialize the data that needs to be packaged, and create a file header;

[0024] S2. Obtain data index entries and data to be packaged from the initialized data;

[0025] S3. Following the file header, create index data node information according to the data index entries obtained from the initialization data, preset the index data node size, and store the index data node information as an index data block; at the same time, according to the needs obtained from the initialization data The packaged data creates data storage node information, presets the size of the data storage node, the data storage node contains bl...

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Abstract

An itemized data compressing and packing method comprises a packing process and a data reading process. The packed file includes a file header and an index chain and a data chain which are mutually independent and are connected with the file header. The index chain stores index data node information, and the data chain stores data storage node information. The index chain includes an index data block 1, an index data block 2, ..., and an index data block n (n>=2), and each index data block is corresponding to an index data node. The data chain includes a data storage block 1, a data storage block 2, ..., and a data storage block n (n>=2), and each data storage block is corresponding to a data storage node. The index data blocks are mapped to the data storage blocks one by one. The address of a next index node is stored at the end of each index data block, and the address of a next data node is stored at the end of each data storage block.

Description

technical field [0001] The invention relates to the field of application program development, in particular to a method for compressing and packaging application program itemized data. Background technique [0002] Data packaging is a technology that is often used in program application release. In application development, it is often necessary to use a large number of various data files. In order to make application release simple and clean, and to protect application data, it is often necessary to use data packaging. . In the commonly used data packaging technology now, there is no good solution to the expansion problem of data index storage, and when reading data, the data needs to be read sequentially, and the reading volume is large. It is not convenient to replace the application data during development, and it is difficult to simultaneously The application of multiple packaged data files may cause problems, and the file compression rate is low, so data security canno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/13G06F16/174G06F21/6209
Inventor 沈育龙
Owner CHENGDU JUNQIAN INFORMATION TECH CO LTD
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