Research And Implementation On Technology Of Web Service Acquisition Orient Service Partition

With the development of the Internet, it appears a wide variety of web serviceswhich changing quickly. The web services bring a great convenience to the people, butbring huge challenges to the managers of the Internet. Web services will be classified bymanagers for ease of management. In this thesis, the network service acquisition systemcrawl the important site information to the local database, and provides high-qualityexperimental data for classification techniques. How the system crawl the massive webservices comprehensively and updates service information constantly are the mainproblems to be solved in this paper.Web crawler technology is the core technology of the web services acquisitionsystem. This paper made a detailed introduction of the principles and basic structure ofthe web crawler technology, and made a thorough research about the search strategy,web pretreatment and web page update strategy. On the basis of the research, this paperinnovatively put forward a web service search strategy based on the label of the depthand three web service update mechanism. The mechanisms are service update strategybased on the head element information, service update strategy based on classificationand service update strategy based on the label of the depth.In the study of web service search strategy based on the label of the depth, webpage is divided into four nodes based on the needs of network service nodes: importantnode, the secondary node, ordinary nodes and irrelevant node. Then we build a Webabstract model of the four types of nodes, and describe the main idea of the web servicesearch strategy based on the label of the depth.In the research on web service update mechanism, this paper put forward an updatestrategy based on head element information according to the changing characteristics ofthe web services. On that basis, this paper also put forward the update strategy based onthe classification and update strategy based on the depth label.Finally, the web service acquisition prototype system is realized by the Javaprogramming. The web service information are collected, classified, stored and updatedin the system. And the system provides sufficient experimental data for the web servicesdivision and verification system.