The Research And Implementation Of The Searching System Based On Special Informations In The Internet Environment

Internet has developed into a great dynamic information service network. It contains many information resources and its websites are all over the world. It provides a valuable information source for user. But in the same time, it also brings great difficult when police search for information.In order to master special information on Internet what police want to understand, this paper designs and constructs a searching system based on Java open source code. Through this system, police can understand the latest information and public opinion on Internet, and make decision based on these formations.This system is divided into three modules with independent function: network crawling module, web analyzing module, information storing and searching module. It uses several programs based on Java open source code to realize the function of these three modules. By modifying the source code necessarily, it can construct a searching engine system that meets the actual need.The searching engine system that this paper describes is a gradually perfect system. Now it has conducted preliminary searching test on police network, and meets the basic design need.