Research And Implement Of Information Syndication System Based On Ajax

Going with explosive growth in the Information Society,environment where Internet customers access to the information is worser and worser.A lot of pop-up advertisements, floating advertisements, unhealthy contents are misleading the user's attention. When pages turn very slowly in Web browsers, browser is waiting for updated and screen is blank,customers have to wait for response.In order to obtain useful information,customers always need to spend a lot of time, which seriously affecting the efficiency and the user experience. So how to filtrate and conformity information of interest fast and efficiently in low-cost becomes a huge problem and also a requirementThis article will discuss and study two current prevalence of Web2.0 key technologies :AJAX and RSS. RSS can be used for Information Syndication System.Behaving the powerful function of AJAX, the user can modify the information arbitrarily on the website,without having to re-send requests and update pages from the server. Such technology may enhance the user experience greatly, and also alleviated the server data processing pressure in the very great degree. In the design, the system adopt the MVC (Model-View-Controller) design patterns to achieve separation of the content and business logic. It is a combination of Servlet+JSP+JavaBean technology, handling of the request by Servlet and control business processes and the corresponding output by JSP, specifying operational data and business logic by JavaBean, so the system is very flexible, General, compatibility and interoperability Because this system adopts B/S pattern, clients only need browser-and-operation-is made very easy.In the first part, it mainly discusses the traits of Information Syndication System, the contents of issue, the value and signification of development. In the second part, according to Web delepment, its key techniques are investigated. In the third part, it details on the RSS and AJAX technology,and the use of them in this paper.In the fourth part, it focuses on the systems analysis and design. In the fifth part, it describes the implementation of the key link in the system. In the sixth part, it expounds the deployment of the distance examination system. At last, it is the summary of this paper.