Method and system for obtaining email text based on mbx format

Abstract

The invention provides a method and a system for obtaining an E-mail body based on an mbx format. The method comprises steps of mapping an e-mail in the mbx format to an internal storage; converting a first line of the e-mail in the mbx format mapped to the internal storage into a pattern string, and enabling first six bytes of the pattern string to serve as a pattern sub-string; adding a mark at a first position of each of the rest of lines except for the first line of the e-mail in the mbx format mapped to the internal storage; enabling six bytes after the mark in each line to form a data block to be mapped onto a cache, and grouping data blocks of multiple lines; screening out the pattern sub-string in each group of the data blocks through a subsection hash mapping method, and recording the positions of the pattern sub-strings; determining and recording positions of null strings by searching the marks; determining the position of the E-mail body by matching the positions of the null strings and the positions of the pattern sub-string, and obtaining the E-mail body. By means of the method and the system for obtaining the E-mail body based on the mbx format, loss of a magnetic disk caused by frequent visiting when the E-mail body is obtained is reduced, and time for obtaining the E-mail body is saved.

Description

technical field [0001] The present invention relates to the technical field of computer data communication, and more specifically, relates to a method and system for obtaining an email text based on mbx format. Background technique [0002] With the progress of society and the development of technology, e-mail has become the main means of communication in people's work. Nowadays, the acquisition and filtering of email texts on the Internet plays an important role in preventing data leakage and intercepting spam, and has attracted more and more attention from network managers. For the extraction of massive mbx format email texts, it is directly for different operations. The system's data leakage prevention and spam filtering provide important raw materials, which play a preprocessing role in extracting key information in the entire network protection system, and its performance directly affects the throughput of the entire protection system and even the entire network topolog...

AI Technical Summary

Problems solved by technology

[0004] In view of the problems referred to above, the purpose of the present invention is to provide a method and system for obtaining mail texts based on mbx format, to solve the problem of system performance loss caused by frequent disk access during the process of extracting mbx format mail texts, and to improve the efficiency of extracting mbx format mail texts. Efficiency of email body

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