离退休人员信息管理系统毕业设计（论文）.doc

《离退休人员信息管理系统毕业设计（论文）.doc》由会员分享，可在线阅读，更多相关《离退休人员信息管理系统毕业设计（论文）.doc（66页珍藏版）》请在三一办公上搜索。

1、大连交通大学信息工程学院毕业设计(论文)任务书题 目 嘉兴市离退休人员信息管理系统任务及要求：1.设计（研究）内容和要求任务：1、 调查JAVA WEB开发当前技术的发展近况，完成实习报告，字数不少于3000，第三周交给指导老师。2、 结合自己实习情况安排进度，填写进度计划表，第二周完成后交给指导老师签字，并严格执行。3、 按照软件工程思想，独立完成系统的设计和程序开发，完成代码估计2000行左右。4、 用jsp和servlet技术实现离退休人员信息的管理功能。5、 程序简洁，算法可行，运行情况良好。要求：1、每周和指导老师至少见面沟通一次，回报课题进展情况，接受老师询问。2、接到任务书后，查

2、阅与题目及专业相关的外文资料进行翻译，要求不少于10000个外文字符，译出汉字不得少于3000，于第四周交给指导老师审阅。3、毕业设计第13周完成毕业论文的装订，并由指导老师评阅。论文要求12000字以上，包括综述、系统总体设计、系统实现、性能分析、结论等。4、教学第13周通过中软及教研室组织进行软件验收，验收时要提供软件使用说明书。5、于第13周提出毕业答辩申请并签字。6、第14 周答辩，要求制作PPT2.原始依据通过大学几年的学习，已经学习了诸如软件工程、数据库原理及应用、数据结构、C+、Visual Basic、JAVA等多门程序设计语言和网络等基础知识和专业知识，学生有能力而且可以独立

3、完成小中型项目的设计与开发。学校现有设备和环境可以提供给学生实习和上机，而且具有专业老师可以指导学生。3.参考文献1 张海藩.软件工程导论(第五版)M.清华大学出版社.2008.22 钱雪忠.黄建华.数据库原理及应用(第二版)M.北京邮电大学出版社.2007.83 韩万江.姜立新.软件开发项目管理M.机械工业出版社.20044 廖望.何俊.谢春旺等.MySQL案例教程M.冶金工业出版社.2007.85 耿祥义.张跃平.Java 2实用教程(第三版)M.清华大学出版社.2006.86 李刚.疯狂Java讲义M.电子工业出版社.2008.97 张铭(译).数据结构与算法分析M.电子工业出版社.20

4、10.18 耿祥义.张跃平.JSP实用教程M.清华大学出版社.2007.109 郑人杰.殷人昆.软件工程概论M.清华大学出版社.200410 Campbell R.Mconnell Stanley L.BrueMicro-EconomicsJset in century oldstyle by York Graphic Services200011 Java Servlet & JSP CookbookM.OReilly Press.200412 Bruce Eckel著Java编程思想北京机械工业出版社.2004.01指导教师签字：教研室主任签字： 年 月 日大连交通大学信息工程学院毕业设计

5、(论文)外文翻译学生姓名 庄黎彬 专业班级 软件工程08-3班 指导教师 阎树昕 刘瑞杰 职 称 高工讲师 所在单位 信息科学系软件工程教研室 教研室主任 刘瑞杰 完成日期 2012 年 4 月 13 日The Technology Of Java web1.JavaIf a scripting language can solve 80 percent of the client-side programming problems, what about the other 20 percentthe “really hard stuff?” The most popular solutio

6、n today is Java. Not only is it a powerful programming language built to be secure, cross-platform, and international, but Java is being continually extended to provide language features and libraries that elegantly handle problems that are difficult in traditional programming languages, such as mul

7、tithreading, database access, network programming, and distributed computing. Java allows client-side programming via the applet.An applet is a mini-program that will run only under a Web browser. The applet is downloaded automatically as part of a Web page (just as, for example, a graphic is automa

8、tically downloaded). When the applet is activated it executes a program. This is part of its beautyit provides you with a way to automatically distribute the client software from the server at the time the user needs the client software, and no sooner. The user gets the latest version of the client

9、software without fail and without difficult reinstallation. Because of the way Java is designed, the programmer needs to create only a single program, and that program automatically works with all computers that have browsers with built-in Java interpreters. (This safely includes the vast majority o

10、f machines.) Since Java is a full-fledged programming language, you can do as much work as possible on the client before and after making requests of the server. For example, you wont need to send a request form across the Internet to discover that youve gotten a date or some other parameter wrong,

11、and your client computer can quickly do the work of plotting data instead of waiting for the server to make a plot and ship a graphic image back to you. Not only do you get the immediate win of speed and responsiveness, but the general network traffic and load on servers can be reduced, preventing t

12、he entire Internet from slowing down.One advantage a Java applet has over a scripted program is that its in compiled form, so the source code isnt available to the client. On the other hand, a Java applet can be decompiled without too much trouble, but hiding your code is often not an important issu

13、e. Two other factors can be important. As you will see later in this book, a compiled Java applet can comprise many modules and take multiple server “hits” (accesses) to download. (In Java 1.1 and higher this is minimized by Java archives, called JAR files, that allow all the required modules to be

14、packaged together and compressed for a single download.) A scripted program will just be integrated into the Web page as part of its text (and will generally be smaller and reduce server hits). This could be important to the responsiveness of your Web site. Another factor is the all-important learni

15、ng curve. Regardless of what youve heard, Java is not a trivial language to learn. If youre a Visual Basic programmer, moving to VBScript will be your fastest solution, and since it will probably solve most typical client/server problems you might be hard pressed to justify learning Java. If youre e

16、xperienced with a scripting language you will certainly benefit from looking at JavaScript or VBScript before committing to Java, since they might fit your needs handily and youll be more productive sooner.to run its applets withi2.Scripting languagesPlug-ins resulted in an explosion of scripting la

17、nguages. With a scripting language you embed the source code for your client-side program directly into the HTML page, and the plug-in that interprets that language is automatically activated while the HTML page is being displayed. Scripting languages tend to be reasonably easy to understand and, be

18、cause they are simply text that is part of an HTML page, they load very quickly as part of the single server hit required to procure that page. The trade-off is that your code is exposed for everyone to see (and steal). Generally, however, you arent doing amazingly sophisticated things with scriptin

19、g languages so this is not too much of a hardship.This points out that the scripting languages used inside Web browsers are really intended to solve specific types of problems, primarily the creation of richer and more interactive graphical user interfaces (GUIs). However, a scripting language might

20、 solve 80 percent of the problems encountered in client-side programming. Your problems might very well fit completely within that 80 percent, and since scripting languages can allow easier and faster development, you should probably consider a scripting language before looking at a more involved so

21、lution such as Java or ActiveX programming.The most commonly discussed browser scripting languages are JavaScript (which has nothing to do with Java; its named that way just to grab some of Javas marketing momentum), VBScript (which looks like Visual Basic), and Tcl/Tk, which comes from the popular

22、cross-platform GUI-building language. There are others out there, and no doubt more in development.JavaScript is probably the most commonly supported. It comes built into both Netscape Navigator and the Microsoft Internet Explorer (IE). In addition, there are probably more JavaScript books available

23、 than there are for the other browser languages, and some tools automatically create pages using JavaScript. However, if youre already fluent in Visual Basic or Tcl/Tk, youll be more productive using those scripting languages rather than learning a new one. (Youll have your hands full dealing with t

24、he Web issues already.) 3.DatabaseYou know that a database is a collection of logically related data elements that maybe structured in various ways to meet the multiple processing and retrieval needs of organizations and individuals. Theres nothing new about databases-early ones were chiseled in sto

25、ne, penned on scrolls, and written on index cards. But now databases are commonly recorded on magnetically media, and computer programs are required to perform the necessary storage and retrieval operations.Youll see in the following pages that complex data relationships and linkages maybe found in

26、all but the simplest databases. The system software package that handles the difficult tasks associated with creating, accessing, and maintaining database records is called a database management system(DBMS).The programs in a DBMS package establish an interface between the database itself and the us

27、ers of the database.(These users may be applications programmers, managers and others with information needs, and various OS programs.) A DBMS can organize, process, and present selected data elements from the database. This capability enables decision makers to search, probe, and query database con

28、tents in order to extract answers to nonrecurring and unplanned questions that arent available in regular reports.These questions might initially be vague and/or poorly defined, but people can “browse” through the database until they needed information. In short, the DBMS will “manage” the stored da

29、ta items and assemble the needed items from the common database in response to the queries of those who arent programmers. Ina file-oriented system, users needing special information may communicate their needs to programmer, who, when time permits, will write one or more prepare the information.The

30、 availability of a DBMS, however, offers users a much faster alternative communications path.4.Sql and Sql serverIBM invented a computer language back in the 1970s designed specifically for database queries called SEQUEL; those letters stand for Structured English QUERY for queries, but can also bui

31、ld databases and manage the database engines security. Because of this heritage you can pronounce it “sequel” or spell it out “S-Q-L.” There are various versions of SQL used in todays database engines. Microsoft SQL Server uses a version called Transact-SQL, or T-SQL, which stands for Transaction SQ

32、L. What Is SQL Server?SQL Server is a client/server relational database management system (RDBMS)that use Transact-SQL to send requests between a client an SQL Server. Client/Server ArchitectureThe terms client, server, and client/server can be used to refer to very general concepts or to specific i

33、tems of hardware or software. At the most general level, a client is any component of a system that requests services or resources from other components of a system. A server is any component of a system that provides services or resources to other components of a system.For example, when you print

34、a document from your workstation on a network, the workstation is the client and the machine that does the print spooling is the server. Any client/server data-base system consists of the following components:The serverA collection of data items and supporting objects organized and presented to faci

35、litate services, such as searching ,sorting , recombining ,retrieving, updating ,and analyzing data. The database consists of the physical storage of data and the data base services. All data access occurs through the server; the physical data is never accessed directly by the client.The clientA sof

36、tware program that might be used interactively by a person or that could be an automated process. This includes all software that interacts with the server, either requesting data from or sending data to the database.The communication between the client and the server- The communication between the

37、client and the server depends largely on how the client and server are implemented. Both physical and logical layers of communication can be identified.When you communicate with someone using the telephone, the telephone system is the physical layer and a spoken natural language is the logical layer

38、 of communication. For a data-based system, the physical layer can be a network if the server and the client are on different computers. It can be intercrosses communication if the server and the client are on the same computer. The logical communication structure of the physical layer may be low-le

39、vel operating system calls, a proprietary data access language, or the open structured query language (SQL).Java web开发的相关技术1.Java如果说一种脚本编制语言能解决80的客户端程序设计问题，那么剩下的20又该怎么办呢？它们属于一些高难度的问题吗？目前最流行的方案就是Java。它不仅是一种功能强大、高度安全、可以跨平台使用以及国际通用的程序设计语言，也是一种具有旺盛生命力的语言。对Java的扩展是不断进行的，提供的语言特性和库能够很好地解决传统语言不能解决的问题，比如多线程操

40、作、数据库访问、连网程序设计以及分布式计算等等。Java通过“程序片”（Applet）巧妙地解决了客户端编程的问题。程序片（或“小应用程序”）是一种非常小的程序，只能在Web浏览器中运行。作为Web页的一部分，程序片代码会自动下载回来（这和网页中的图片差不多）。激活程序片后，它会执行一个程序。程序片的一个优点体现在：通过程序片，一旦用户需要客户软件，软件就可从服务器自动下载回来。它们能自动取得客户软件的最新版本，不会出错，也没有重新安装的麻烦。由于Java的设计原理，程序员只需要创建程序的一个版本，那个程序能在几乎所有计算机以及安装了Java解释器的浏览器中运行。由于Java是一种全功能的编程

41、语言，所以在向服务器发出一个请求之前，我们能先在客户端做完尽可能多的工作。例如，再也不必通过因特网传送一个请求表单，再由服务器确定其中是否存在一个拼写或者其他参数错误。大多数数据校验工作均可在客户端完成，没有必要坐在计算机前面焦急地等待服务器的响应。这样一来，不仅速度和响应的灵敏度得到了极大的提高，对网络和服务器造成的负担也可以明显减轻，这对保障因特网的畅通是至关重要的。与脚本程序相比，Java程序片的另一个优点是它采用编译好的形式，所以客户端看不到源码。当然在另一方面，反编译Java程序片也并不是件难事，而且代码的隐藏一般并不是个重要的问题。大家要注意另外两个重要的问题。正如本书以前会讲到的

42、那样，编译好的Java程序片可能包含了许多模块，所以要多次“命中”（访问）服务器以便下载（在Java 1.1中，这个问题得到了有效的改善利用Java压缩档，即JAR文件它允许设计者将所有必要的模块都封装到一起，供用户统一下载）。在另一方面，脚本程序是作为Web页正文的一部分集成到Web页内的。这种程序一般都非常小，可有效减少对服务器的点击数。另一个因素是学习方面的问题。不管你平时听别人怎么说，Java都不是一种十分容易便可学会的语言。如果你以前是一名Visual Basic程序员，那么转向VBScript会是一种最快捷的方案。由于VBScript可以解决大多数典型的客户机服务器问题，所以一旦上

43、手，就很难下定决心再去学习Java。如果对脚本编制语言比较熟，那么在转向Java之前，建议先熟悉一下JavaScript或者VBScript，因为它们可能已经能够满足你的需要，不必经历学习Java的艰苦过程。2.脚本编制语言插件造成了脚本编制语言的爆炸性增长。通过这种脚本语言，可将用于自己客户端程序的源码直接插入HTML页，而对那种语言进行解释的插件会在HTML页显示的时候自动激活。脚本语言一般都倾向于尽量简化，易于理解。而且由于它们是从属于HTML页的一些简单正文，所以只需向服务器发出对那个页的一次请求，即可非常快地载入。缺点是我们的代码全部暴露在人们面前。另一方面，由于通常不用脚本编制语言

44、做过分复杂的事情，所以这个问题暂且可以放在一边。脚本语言真正面向的是特定类型问题的解决，其中主要涉及如何创建更丰富、更具有互动能力的图形用户界面（GUI）。然而，脚本语言也许能解决客户端编程中80的问题。你碰到的问题可能完全就在那80里面。而且由于脚本编制语言的宗旨是尽可能地简化与快速，所以在考虑其他更复杂的方案之前（如Java及ActiveX），首先应想一下脚本语言是否可行。目前讨论得最多的脚本编制语言包括JavaScript（它与Java没有任何关系；之所以叫那个名字，完全是一种市场策略）、VBScript（同Visual Basic很相似）以及Tcl/Tk（来源于流行的跨平台GUI构造语

45、言）。当然还有其他许多语言，也有许多正在开发中。JavaScript也许是日常用的，它得到的支持也最全面。无论NetscapeNavigator，Microsoft Internet Explorer，还是Opera，目前都提供了对JavaScript的支持。除此以外，市面上讲述JavaScript的书籍也要比讲述其他语言的书多得多。有些工具还能利用JavaScript自动产生网页。当然，如果你已经有Visual Basic或者Tcl/Tk的深厚功底，当然用它们要简单得多，起码可以避免学习新语言的烦恼（解决Web方面的问题就已经够让人头痛了）。3.数据库众所周知，数据库是逻辑上相关的数据元的汇

46、集。这些数据元可以按不同的结构组织起来，以满足单位和个人的多种处理和探索的需要。数据库本身不是什么新鲜事早期的数据库凿在石头上，记在名册上，以及写在索引卡中。而现在，数据库普遍记录在可磁化的介质上，并且需要用计算机程序来执行必需的存储和索引操作。如下所述，所有数据库（最简单的除外）中都有复杂的数据关系及其链接。处理与创建、访问以及维护数据库记录有关的任务的系统软件包叫做数据库管理系统（DBM）。DBMS软件包中的程序在数据库与其用户间建立接口。（这些用户可以是应用程序员、管理员、及其他需要信息饿人员和各种操作系统程序）。DBMS可组织、处理和表示从数据库中选出的数据元。该功能使决策者能搜索、探

47、查和查询数据库的内容， 对在正规报告中没有的、不在出现的且无法预料的问题做出回答。这些问题最初可能是模糊的并且（或者）是定义不恰当的，但是人们可以浏览数据库直到获得所需的信息。简言之，DBMS将“管理”存储的数据项，并从公共的数据库中汇集所需的数据项以回答非程序员的询问。在面向文件的系统中，需要特定信息的拥护应将他们的要求传送给程序员。该程序员在时间容许时，将编写一个或多哥程序以提取数据和准备信息。然而，DBMS的可用性为拥护提供了一个更快的替代通信通道。4.SQL和SQL服务器IBM在20世纪70年代，设计了一种专门处理数据库查询的计算机语言SEQUEL，这几个字母是结构化英语查询语言的缩写

48、。随着时间的推移，它增加了许多功能，就不仅是一个查询语言了，还可以创建数据库，管理数据古引擎的安全。IBM把他公开发行，于是就变成了现在为大家所知的SQL。由于历史的原因SQL和读成sequel，也可以逐字段拼成S-Q-L。在现在的数据库引擎里，已经有了好多种SQL版本。微软SQL server 使用的是T-SQL，它代表的是事务SQL。 什么是SQL ServerSQL Server是一个客户机/服务器关系型数据库管理系统（RDBMS），它使用事务SQL在客户机和SQL服务器之间传送请求。 客户机-服务器体系结构术语客户机、服务器和客户机-服务器可以是非常广泛的概念或指硬件、软件、。按最一般的概念，客户机是从系统其他部件请求服务或资源的系统的任何部件；服务器是向系统其他部件提供服务或资源的任何部件。例如，当用户从网络上的工作站打印一个文件时，工作站是客户机，用做假脱机打印的机器是服务器。任何基于数据的