论文标题:基于J2EE的管理信息系统的关键技术研究
The Research of Rapid Prototyping Technology of Chemical Chip
论文作者 方明霞
论文导师 侯晓霞,论文学位 硕士,论文专业 系统工程
论文单位 南京理工大学,点击次数 88,论文页数 61页File Size3178k
2004-06-01论文网 http://www.lw23.com/lunwen_333177072/ MIS;JZEE;XML;异构数据源;加密
MIS,J2EE,XML,Heterogeneous Data Sources,Encryption
本文在WebLogic与JBuilder结合的开发环境中构建了残疾人管理信息系统。该系统设计了五大功能模块，实现了作为残疾人管理信息系统所必需的基本功能。 本文对系统开发中涉及到的关键技术作了深入探讨。一是针对异构数据源共享的问题，研究了XML技术。利用XML作为数据描述工具和转换工具，构造了数据集成的中间件，并在此中间件的基础上集成异构数据库，从而实现了基于XML的异构数据的查询方法。二是针对系统安全，在JAVA加密体系结构(JCA)和JAVA加密扩展(JCE)、基于口令的加密算法的基础上，提出并实现了保障用户安全的具体方案：采用Applet、Servlet技术，运用改进的基于口令的加密算法，实现对用户口令的多重保护。另外结合数据库本身的安全策略及利用session防止重写URL的方法，加强了系统的安全性。
The management information system for handicapped is constructed in the development environment of WebLogic Server together with JBuilder in this thesis. Five information-service modules are designed, and some necessary functions for the system are realized.A profound discussion is carried out on key technologies in the system development in this thesis. First, the thesis studys XML technology for solving the problem of how to share heterogeneous data sources. XML is considered as a tool of data description and transformation. A data integration middleware is constructed by using the tool. Heterogeneous database is integrated on the basis of the middleware and therefore a heterogeneous data query method based on XML is successfully realized. Second, with regard to the system"s security, a special scheme ensuring user"s security is presented and realized, which is on the basis of JAVA cryptography architecture, JAVA cryptography extension and encryption algorithm based on password. The scheme adopts Applet and Servlet technology, uses the improved encryption algorithm based on password and then provides multi-protection for user"s password. In addition, the security policies of database and the method using session to protect against rewriting URL ensure the system"s security.
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