This paper introduces a new platform----J2EE, describing in detailits structure and main technologies, including Servlet, JSP, EJB and a group of common APIs; It also studies on J2EE' s application in developing enterprise systems from two aspects梟-tier architecture & component-based development; It also discusses J2EE' s evolution and future direction.The credit risk is an important part of the whole bank' s financial risk, and the credit risk MIS is a new type of enterprise system. According to a fact research work, the Collateral MIS for Tianjin Branch of BOC, this paper proposes a credit risk management system model. As essential contents, It provides a unified management platform by collecting all departments' credit business information, a organic risk evaluation system including reviewing customer' s credit, classifying loan and evaluating collateral' s status, and based on this a set of management and analysis functions such as alarm and flexible custom query. The paper describes in detail the system' s design & realization process using J2EE.
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