【作者】 陈飞；

【导师】 孟永彪；

【作者基本信息】 新疆大学 ， 化学工程， 2004， 硕士

【摘要】 本文分析了化工企业建设Intranet的必要性，研究了Intranet的特点，安全性以及Intranet的两项重要技术，即Web技术和Web与数据库的连接技术；采用微软Intranet解决方案，根据实际情况，选择适合化工企业信息化进程的网络软件，组成本系统的开发环境。本文的特点是使用服务器软件Tomcat来配置服务器，利用Web应用程序开发工具－JSP（Java Server Pages）创建可支持跨平台及跨Web服务器的动态网业，通过JSP同关系型数据库SQL Server 2000的连接实现页面数据的动态更新。通过瘦客户机/服务器的配置及几个典型的化工过程系统在Citrix MetaFrame环境的应用，探索出Intranet化工集成系统应用的一个方向。利用瘦客户机/服务器技术实现“瘦客户”，客户机上只安装操作系统，应用软件均可从服务器上调用。应用软件的网络化等技术极大的降低了企业管理和维护Intranet的费用，并能提高应用性能、确保信息的安全和可靠性、发挥出“瘦”客户端设备优势。同时化工企业开展电子商务的构架也已经搭建完成。该工作具有前瞻性，它为企业进行信息化管理，以及ERP（企业资源规划）奠定了基础，具有重要的实践意义。 本文有如下特点：一：选择了JSP为建设动态网站的编程技术， 该技术使用了灵活而强大的Java语言，在平台技术上，JSP率先实现了跨平台操作，摆脱了使用ASP基于Windows平台的束缚。并且JSP是通过Java开放模式开发的，它可以广泛地被其他开发工具、Web服务器和应用服务开发商所支持。二：化工企业是传统的行业,随着我国进入WTO，我国化工企业面临全球一体化的竞争，这种竞争从某种意义上来说也是知识经济和信息化的竞争。进行化工企业的信息化建设势在必行，本系统充分结合了化工企业与Intranet的特点，将整个系统分为内网同外网，在外网中进行企业的电子商务活动和企业形象宣传；在内网中实现企业内部信息的共享和应用软件的网络化运行，并且在进入内网前进行身份验证，充分保证了企业内部信息的安全性。三：利用了瘦客户机/服务器的技术实现所有的应用程序和数据都由服务器调度、管理及支持。应用程序全部在服务器上执行；客户机可以是很低端的配置，在浏览器中通过ICA协议调用服务器上的应用程序，并可将最终文档保存在客户机中或将其打印。四：基于Intranet平台信息系统的安全性可分为网络安全和信息安全两大部分。网络安全技术包括以防火墙技术为代表的系列网络安全技术，即IP地址转换技术、服务代理技术、虚拟专用网络技术、将系统分为内网同外网等。信息安全技术主要包括以加密技术为代表的密码技术、密钥管理技术、数据库加密技术等。 通过本系统的研究，为化工企业网集成优化技术及应用初步建立模型，探索出了化工企业信息化建设的方向。更多还原

【Abstract】 This paper analyze the necessity of building Intranet in chemical enterprise, research the character and security of Intranet, especial to two important network techniques, which are Web technique and connection technique between Web server and database. According to the practice, using the solution of Microsoft network software, which are suitable for the MIS of chemical enterprise, is used to compose the development environment of the system.. The specialty of this thesis is that use server software –Tomcat to configure server, use exploitation tool of Web application programme—JSP (Java Server Pages) to design and develop the dynamic Web pages that can support striding flat roof. Through the connection between JSP and relation Database SQL Server 2000 to realize the data dynamic updating on the pages. Use thin-client /server technique to realize “thin client”---when only installing operating system in clients, and these clients can transfer application software from server. The network technique of application software can reduce the cost of governing enterprise and maintenance Intranet. And enhance application capability, ensure security of information, exert the advantage of “thin client”. At the same time, the project has the creativity, which is the basis of enterprise information management and ERP. It has important practical value.The characteristics of this paper are as following,Firstly, choose JSP to as programming technique of building dynamic web, this technique use agile and strong language Java. On the flat roof technique, JSP takes the lead in realizing operation of striding flat roof. So get rid of the chain of windows flat roof when using ASP. And JSP was exploited through the open mode of Java language; other exploitation tools, web server, and application server developer can support it.Secondly, chemical enterprise is tradition industry, with china enter WTO, chemical enterprise confront the competition of the seven seas integrating. For some meaning, this competition equate to competition of knowledge economy and information. Information building of chemical enterprise is necessary. This system combines the characteristic of chemical and Intranet. Separate the whole system to inner net and outer net. In outer net, it can go along E-business of enterprise and publicize enterprise image. In inner net, it can go along emprise inner information sharing and running application software by network. After passing validate, you can enter inner net. This design can ensure the security of inner information.Thirdly, using thin-client/server technique to realize that all application programme can be attempered, managed, supported by server. Additionally, application programme was <WP=4>carried out in server. In this system, the client can be very low-grade configuration. Through ICA protocol in IE, the client can transfer the application software inn the server. The final document can be saved in the client, and these documents also can be printed.Fourthly, the security of information system based on Intranet flat roof includes network security and information security. Network security includes a series network security technique that fireproofing wall is representation. Those are IP address transition technique, service deputy, dummy special network technique, system separating inner net and outer net, and so on. Information security, encrypt technique is representation, includes secret key technique, database encrypt technique, and so on.Through this system researching, build the fringe mode for the integration optimizing technique of Intranet in the chemical enterprise. At the same time, exploring the direction of information building in chemical enterprise.更多还原