J2ee-based Enterprise Information Portal Architecture Research

The Enterprise Information Portal integrates enterprise's interior and extraneous information infrastructures such as knowledge management systems, financial systems, ERP systems, workflow management systems, provides the only junction point for each kind of users, as well as personalized information search, visiting and analysis, thus the effective use of enterprise information asset makes the best business analysis and the decision-making.This article bases on the enterprise information portal's architecture, proposed an EIP architecture using Service Oriented Architect designs based on J2EE standards.In the portal's presentation layer users can visit it through the browser, portable device via HTML, XML, WML etc. JSR168 standard-Portle is one of core components, and the Web Service for Remote Portlets standard expands the Portlet application scope and pattern, Portlet can invoke backend business logics and remote portlets through Portlet API and Web services.EIP's interior business components communication and process integration among partners need standard and generic electronic commerce dialogue environment, this article analyzes and compares some standards such as RosettaNet, EbXML and BPEL4WS.The fundamental layer is EAI(Enterprise Information Integration), it is a next generation information integration software, which uses many important techonology of data transmission and transformation, workflow integration and management and so on. This article makes an analysis and comparison of Web service, Java Connector, Java Messaging Service which are based on the SOA architect and interface-based technology.Finally this article partly implements an enterprise information portal based on Weblogic Portal and the Workshop integrated development environment. Thisportal consists of four layers: portal application desktop, application and service layer, business logic and component layer, enterprise information integration layer. Staffs, customers and partners enter the personalized desktop through the unified user authentication to view corresponding information, and they can collaborate with each other easily on the platform; Backend application and business logic integrates enterprise's each kind of resources: ERP product information, order information, customer relationship management information, email, filing system, payment system and so on; Enterprise can conduct business interaction and process integration with partners through some standard protocols or patterns. In the case I introduce in details a B2B process integration's implementation based on ebXML agreement. In the case many essential technologies and the whole architecture basically conform to what the article proposed and confirmed to be feasible.