【摘要】 文档管理在PDM中是关键技术,其中文件存取是其中很重要的一个技术关键点。Web下的文件存取技术对PDM系统性能影响很大。本文首先简述了J2EE平台下企业Web应用程序的开发模式,分析探讨了J2EE平台下文件存取的各种方案优缺点,然后针对具体企业PDM系统的实际需求,对数据库模式下的文件存取方案进行了设计,最后,给出了设计上具体的核心技术。更多还原

【Abstract】 Document management is a crucial technology in PDM system ,and within this functional module ,depositing and withdrawing files are key points of the technology , it will impact the PDM system’s performance in some degree while the system is built in web frame .This article at first analyzes web applications’developing modes which are based on the J2EE criterion ,and then discusses the advantages and disadvantages of the methods of depositing and withdrawing files under the J2EE platform ,and for the requirements of the PDM system which was used by enterprise ,we designed a project aimming at database-mode ,and in the end ,the key technologies to implement the design was given here.更多还原