Based Research And Development Of The Classification Of The User's E-mail Filtering System

Internet has made a rapid progress which resulted in the quickly developing of E-mail as one of the most fastest and economic contact methods. But many illegal junk mails are sent through the Internet such as selling ads, collecting funds; these junk mails not only occupy the capacities of mail server, but also waste the energies and time of users to manage them.Focus on the shortage of filter strategies by mail server, this article raise up the three-stage filter strategy based on separate users. This filter strategy realizes the sending and receiving mails flowing to the three-stage filter, the three-stage filter is referred to system-stage, domain-stage and user-stage. According to the different setting of three-pattern filter, filter patterns become more distinct and filter aims are clearer, filter of junk mails are more particular; further more, realization to the two-direction of sending and receiving mails could efficiently control sending junk mails and maintain the reputation of mail servers.This report made clear the research of J2EE three patterns-MVC Pattern, Session Facade Pattern and Data Access Object Pattern, built the DBEmail filter system on the J2EE pattern. The following is the main results:1. Using the technology of J2EE to fulfill the request of mail filter system with little costs and also it can get more practical, dependable and expanded needs, further more, it can easily enhance the maintenance.2. This kind of Patterns could realize the progress of accumulating and transmitting knowledge; it can record and exchange the proved resolving strategies; these strategies could resolve any kind of problems in different environments. Using the patterns in efficient way could make us faraway from the repeat invest.