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With the rapid development of internet,the rapid expansion of the network scale, the widely use of the Web site technology,the user’s requirements of rich-client have been increased,in order to put forward a rich interface application RIA(Rich Interface Applications).The development of the traditional network is based on the page, server-side data transfer model,the network side procedures establish the HTML page above,and is suitable for HTML text,the traditional page-based system has been gradually can not meet the the higher,all-round experience requirements,and the emergence of RIA is to solve the problem.Ext is a rich internet applications javaScrip library to create cross-browser.It contains:a highly efficient and customizable user interface,small parts,the beautiful design,scalable model for the composition of components,easy-to-use,intuitive application programming interface.Based on pure Html/CSS+JS technology,provides a wealth of cross-browser UI components,a flexible use of JSON/XML format for the exchange,the client that the level of service to really lighten the load,so as to achieve the RIA client application.The paper is to study the Ext framework how to work and integrate the Ext framework with oter main Web development framework,research its function and operationg characteristics in detail.According to the research,make the system design overall,the selection and integration of the framework,and the realization of the project,at last develop the library management system.The paper introduces the Ext framework at first,analyzes and research the basis of the mechanism and implementation of the Ext framework.And then draws on the frame -work based on J2EE experience in WEB development projects,successfully introduce Struts,Hibernate,Spring framework--the three frameworks,and integrate them.Through the use of the frameworks,reduce the code coupling and the development cycle.So help the system’s development.The system’s development first is to research the Ext framework,the second is to help them who are interested in the development of MIS walk less detours.
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