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数据库新闻论文范文

　　 Abstract:(Times New Roman,小四,加粗)The use of ASP and SQL technology news site management system, to achieve the dynamic management of the news Web site, making the management of information more timely, efficient, improve the work efficiency. At the same time, the development of systems theory, systems and design features are introduced.(Times New Roman,五号,单倍行距)

　　 Key words?:ASP,SQL,news management,database

　　 Times New Roman,五号,单倍行距)With the popularization of Inter, more and more panies set up their own WWW sites, enterprises can display products through the website, publishing the latest developments, with users sharing and munication to establish contact with partners, as well as e-merce. Information Management System which is an enterprise Web site an important part of it bears a double role, on the one hand, the dynamic can be used to release the new product or new development projects, on the other hand, the timely notice to their customers business performance, Progress in technology and research and development, in particular, remend or preferential projects, products and services to attract customers, expand customer base.

　　 Management of traditional news sites in two ways, one static HTML page, update the information needed to re-create the page and then upload the page and modify the corresponding links, the efficiency of this approach is too low because we h论文范文e little use. The second is based on ASP and scripting languages, dynamic Web pages and databases, through the application of procedures to deal with news, this is way more popular. However, due to the limitations of ASP allows the system itself, there are some insurmountable flaws, and ASP.NET technology has taken on the system performance has been greatly improved, the main performance in the following aspects:

　　 1. ASP page to open as a result of each must be piled to explain the process, so when the page opens in the rate of repeated there is no upgrade, and only need a ASP.NET page do not need to repile piled until the page has been modified or Web Application process restarted. This makes the speed in a number of visits has greatly improved.

　　 2. As the ASP does not provide any output data for the content of the ponents, so writing a database using ASP page can use the Record Set Object ADO to read records of transaction, while the ASP provided through the DataGrid, such as ADO.NET database and database ponents can be directly Contact.

　　 3. ASP support real-time application updates. Administrators do not h论文范文e to turn off the work server or even do not h论文范文e to s论文范文 running the application can update the application on file. Application documents will never be locked, so even when the program runs in the paper can be overwritten. When the document is updated, the system will convert to the new moderate version.

　　 4. ASP take the "code-behind" approach to the preparation of the code makes the code easier to prepare, structure more clearly, reducing the system development and maintenance of the plexity and the cost of.

　　 1 System Development Principle

　　 1.1 The System Architecture Model of ASP-based Technology

　　 ASP is a three-tier system structure: UI Layer, Business Logic Tier and data layer.

　　 UI layer is responsible for interaction with the user, receiving user input and server-side data from present to clients.

　　 Business Logic Tier is responsible for receiving requests from browser requests to the data layers and at the same time the results of the request sent to the browser. It consists of Web Forms, XML Web services and service position ponents. Web Forms ASP.NET which is the core of the application, it is presented to customers based on data and information as well as to respond to and deal with customers and display interactive Web form generated based on information and data.

　　 Data layers to manipulate data through the ADO.NET layer for business logic to provide data services, such as storing the results of data manipulation and return to the results of data retrieval.

　　 1.2 The principle of access to the database ADO.NET

　　 Connected with the database, ADO.NET provide the following three kinds of ways: through ODBC connected; connected through OLEDB; directly connected with the SQL Server. Application of three kinds of ways as a result of differences in levels, making the efficiency from low to high, high to low independence. Connected to the database for data processing, there are two kinds of ways, that is, through a Dataset to the isolation of heterogeneous data sources, and the other is a stream to read from the data source (Data Reader mode).

　　 Traditional application is to create a connection to the database, in the process is running the whole way to maintain connections to the design. ASP.NET taken disconnected mode data structure. When a browser requests a page to the Web server, the server to deal with this request, the requested page and send to your browser, and then connection was disconnected until the next browser request issued.

　　 ADO.NET Another innovation is the introduction of a data set (Dataset). A data set is the relationship between memory map to provide high-speed data buffer. Data set of data sources know that they can be adopted by the program or tran论文范文erred from the data warehouse data were generated, to fill. Regardless of where the data acquisition, data sets are the same procedure through the use of templates to be operated, and it's potential to use the same data buffer.

　　 2 Systems Functional Designs

　　 2.1 Systems Function Structures

　　 The news management system in Windows 2000 Server operating system platforms, Web server IIS, the database server for Microsoft SQL Server2000, development tools used in Microsoft Visual Studio. NET and DreamWe论文范文er. Its work processes as follows: the user login through the authority to determine the general user can only browse, read and query information, registered users can be pleted in addition to the ordinary user, but also can enter information for news management module input, modify, and delete operations. In addition to registered users outside the system administrator can only be recorded on its own news operation for excision.

　　 2.2 Systems Function Characteristics

　　 (1) Simple, user-friendly: plete control of page layout, making information easier entry work; many options including news categories, such as the source of departments only need to click the mouse can be pleted; In addition, the follow-up message also appears allow users to clear their own operations.

　　 (2) Can be seen immediately: the handling of the press (including the entry, modify, delete) will be the corresponding column on the home page is displayed to "immediate release, immediate results" function.

　　 (3) Function: include mon site in all aspects of information management: information input, browse, delete, modify, search and other aspects, the full realization of the Web site of the real-time information management requirements.

　　 (4) To facilitate transplantation: for different enterprises, with some slight modifications need to be able to develop for the pany's Web site features news management system.

　　 3 Systems Detailed Designs

　　 Core functions of the system through a number of functional modules achieved. Specific design process is as follows:

　　 ⑴ System login: The module responsible for the user are divided into general users and registered users to achieve the management of user rights.

　　 (2) News View: The module is responsible for all the news page web site lists information, including the title, type, source and date field departments, and each title has been made news a hyperlink, click the page they will be able to Jump news reader.

　　 (3) News reader: in other pages or click the title link to read into the news pages, at this time, detailed information of each information will be removed, including the content, title, keywords, and relatively fixed in accordance with the format placed in different pages region, the use of all the news about the same page layout, only the contents of the field corresponding to different In addition, the location of other pages can be dynamically placed in other ponents, such as web site logo, such as the page banner ads link to pictures, this can be easily to achieve the effect of illustrations in reading.

　　 (4) News Inquiry: The module provides a press inquiry, type to be selected to find the content and classification of information can quickly find the information in line with the conditions and results output.

　　 (5) News Management: The module listed in the registry is responsible for the registration page the user has issued a news and information and did not delete, the user can press to delete the article, modify. In addition to non-news publisher is not outside the system administrator has the authority to deal with information which, so different users access to this page will display different content.

　　 (6) News entry and modification: a press registered users need to input the content, including title, keyword, type, source of departments, such as release date, at the same time from the login module to be user name, this information will be s论文范文ed into the database. The module is also responsible for editing the updated state, then, it will light the Title field values on the page to initialize the control.

　　 asp的网站新闻管理系统的设计与实现(小二宋体,段前2行段后1行)

　　摘要:利用ASP和SQL技术开发的网站新闻管理系统,实现了网站新闻的动态管理,使得对信息的管理更加及时,高效,提高了工作效率.同时对系统的开发原理,系统的功能特点和设计方案进行了介绍

　　关键词:ASP,SQL,新闻管理,数据库

　　 (正文部分5号宋体,单倍行距)随着Inter的普及,越来越多的企业建立了自己的WWW网站,企业通过网站可以展示产品,发布最新动态,与用户进行交流和沟通,与合作伙伴建立联系,以及开展电子商务等.其中新闻管理系统是构成企业网站的一个重要组成部分,它担负着双层作用,一方面可以用来动态发布有关新产品或新开发项目,另一方面又可以及时向顾客公告企业经营业绩,技术与研发进展,特别推荐或优惠的工程项目,产品和服务,从而吸引顾客,扩大顾客群.

　　传统的网站新闻管理方式有两种,一是静态HTML页面,更新信息时需要重新制作页面然后上传页面并修改相应链接,这种方式因为效率太低已不多用.二是基于ASP和脚本语言,将动态网页和数据库结合,通过应用程序来处理新闻,这是目前较为流行的做法.但是由于ASP本身的局限性使得系统有一些不可克服的缺陷,而采取了ASP.NET技术的系统性能上有了很大的改善,其主要表现在以下几方面:

　　 1.由于ASP页面每次打开都必须经过先编译后解释的过程,所以页面在反复打开时速度没有任何提升,而ASP.NET页面只需要一次编译后不需要重新编译,直到该页面被修改或Web应用程序重新启动.这使得在多次访问时速度有了极大的提升.

　　 2.由于ASP没有提供任何输出数据为内容的元件,所以在使用ASP撰写数据库页面时只能借助ADO的Record Set对象逐笔读取记录,而ASP通过ADO.NET提供的DataGrid等数据库元件可以直接和数据库联系.

　　 3.ASP支持应用程序的实时更新.管理员不必关掉网络服务器或者甚至不用停止应用程序的运行就可以更新应用文件.应用程序文件永远不会被加锁,因此甚至在程序运行时文件就可以被覆盖.当文件更新后,系统会温和地转换到新的版本.

　　 4.ASP采取"code-behind"方式编写代码使得代码更易于编写,结构更清晰,降低了系统的开发与维护的复杂度和论文范文.

　　 1系统的开发原理(四号宋体)

　　 1.1 基于ASP技术的系统结构模型(五号宋体)

　　 ASP结构是一个三层系统:UI层,业务逻辑层和数据层.

　　 UI层负责与用户交互,接收用户的输入并将服务器端传来的数据呈现给客户.

　　业务逻辑层负责接收浏览器传来的请求并将请求传给数据层,同时将请求处理结果发给浏览器.它由Web表单,XML Web服务和组件服务组成.其中Web表单是ASP.NET应用程序的核心所在,它是向客户呈现数据和信息的基础,也是响应和处理客户与显示的Web表单交互生成的信息和数据的基础.

　　数据层是通过ADO.NET操纵数据为事务逻辑层提供数据服务,如存储数据操作结果,返回数据检索结果等.

　　 1.2 ADO.NET访问数据库的原理

　　与数据库相连,ADO.NET提供了如下3种方式:通过ODBC相连;通过OLEDB相连;直接与SQL Server相连.3种方式由于应用层次的差异,使得效率由低到高,独立性由高到低.对于相连数据库的数据处理,也有2种方式,即一种是通过Dataset来隔离异构的数据源,另一种是以流方式从数据源读取(Data Reader方式).

　　传统的应用程序是通过先建立到数据库的连接,在程序的整个运行过程中维护连接的方式来设计的.ASP.NET采取了断开连接方式的数据结构.当浏览器向Web服务器请求网页时,服务器处理这个请求,并将所请求的网页发送给浏览器,然后连接就被断开,直到浏览器发出下一个请求.

　　 ADO.NET的另一个创新是引入了数据集(Dataset).一个数据集是内存中提供数据关系图的高速缓冲区.数据集对数据源一无所知,它们可以由程序或通过从数据仓库中调入数据而被生成,填充.不论数据从何处获取,数据集都是通过使用同样的程序模板而被操作的,并且它使用相同的潜在的数据缓冲区.

　　 2 系统的功能设计

　　 2.1 系统的功能结构

　　该新闻管理系统可以在Windows 2000 Server操作系统平台上运行,Web服务器为IIS,数据库服务器为Microsoft SQL Server2000,开发工具采用的Microsoft Visual Studio .NET和DreamWe论文范文er.其工作流程为:用户登录通过权限判断,普通用户只能浏览,阅读和查询新闻,注册用户除了可以完成普通用户的操作外,还可以进入新闻管理模块进行新闻录入,修改和删除的操作.注册用户除系统管理员外只能对自己录入的新闻进行删改操作.

　　 2.2 系统的功能特点

　　 (1)操作简单,界面友好:完全控件式的页面布局,使得新闻的录入工作更简便;许多选项包括新闻类别,来源部门等只需要点击鼠标就可以完成;另外,跟踪出现的提示信息也让用户随时清楚自己的操作情况.

　　 (2)即时可见:对新闻的处理(包括录入,修改,删除)将立即在主页的对应栏目显示出来,达到"即时发布,即时见效"的功能.

　　 (3)功能完善:包括常见网站的新闻管理的各个方面:新闻录入,浏览,删除,修改,检索等各个方面,完整地实现了网站对即时新闻的管理要求.

　　 (4)方便移植:针对不同的企业,只需要稍作修改就可以开发出适合本企业特点的网站新闻管理系统.

　　 3 系统的详细设计

　　系统的主要功能是通过几个功能模块来实现的.具体的设计过程如下:

　　 (1)系统登录:该模块负责将用户分为普通用户和注册用户来实现用户权限的管理.

　　 (2)新闻浏览:该模块负责分页列出网站所有新闻的信息,包括标题,类型,来源部门字段及发布日期,每条新闻的标题被做成一个超链接,点击它们就能跳转页面进行新闻阅读.

　　 (3)新闻阅读:在其他页面中点击标题链接即进入新闻阅读页面,此时,每条新闻的详细信息将被取出,包括内容,标题,关键字等,并按照相对固定的格式放置在页面的不同区域,所有新闻使用大致相同的页面布局,只是各字段对应的内容不同而已,另外,页面其它位置,可以动态放置其他元件,如网站标志logo,页面广告banner等链接图片,这样可以很容易地实现图文并茂的阅读效果.

　　 (4)新闻查询:该模块提供了新闻查询功能,输入待查找的内容及选定分类信息可以快速地找到符合条件的新闻,并输出查询结果.

　　 (5)新闻管理:该模块负责分页罗列登录的注册用户曾发布过且未删除的新闻信息,用户可以对该条新闻进行删除,修改.非新闻发布者除系统管理员外不具有对该条新闻的处理权限,所以不同用户进入此页面将显示不同的内容.

　　 (6)新闻录入和修改:注册用户录入一条新闻所需要的内容,包含标题,关键字,类型,来源部门,发布日期等,同时从登录模块得到用户名,这些信息将被写入数据库中保存.SQL Server Introduction

　　 1. SQL Server Relational Database Introduction

　　 1.SQL Server is the development and promotion of Microsoft's relational database system (DBMS), it was originally proposed by Microsoft, Sybase and Ashton-Tate three panies jointly developed and launched in 1988, the first OS / 2 version.

　　 2.Relational database (RDBMS) Management System features:

　　 The maintenance of the relationship between the database data;

　　 Guarantee the correctness of data storage;

　　 When system failures occur when all the data back to the line to ensure a consistent state

　　 3.RDBMS: SQL Server, Oracle, DB / 2, Sybase, Informix

　　 4.Non-RDBMS (File-based): Foxpro, Access

　　 2. The Version of SQL Server 2000

　　 Common version of SQL Server 2000 are:

　　 Enterprise Edition (Enterprise Edition)

　　 Support all the functions of SQL Server 2000. The version number of products for large and medium-sized database server, and can support large-scale Web site, enterprise OLTP (online transaction processing) and large-scale data warehouse systems OLAP (Online Analytical Processing) performance required.

　　 Standard Edition (Standard Edition)

　　 Practical scope of the work of 论文范文all groups or departments. It supports most features of SQL Server2000. However, do not h论文范文e to support large databases, data warehouses and web site functionality. Also, do not support all the functions of relational database engine.

　　 Personal Edition (Personal Edition)

　　 Mainly applied to mobile users because they are often disconnected from the work, and run the application still needs the support of SQL Server 2000. In addition to transaction processing functions other than reproduction, to support all SQL Server 2000 Standard Edition features support.

　　 Developers Edition (Developer Edition)

　　 Apply to the version of application development and support in addition to graphical language settings other than the SQL Server2000 all other functions. This version is mainly applied to applications programmers in the development, it will be SQL Server 2000 as its data storage area. Although the development of full-featured version, but only h论文范文e been authorized to develop and test a system, rather than a product server.

　　 2.1 SQL Server Features

　　 1. Integration with the Inter:

　　 SQL Server 2000 database engine full support of XML (Extensive Markup Language, Extensible Markup Language), enables users to easily publish the data in the database to the Web page.

　　 2. Scalability and 论文范文ailability:

　　 Across from the lap论文范文 running Windows 95/98 puters running the Windows 2000 and other large-scale multi-processor platform. In addition, the Joint server, view the index and so on, making SQL Server 2000 Enterprise Edition can upgrade to the largest Web site of the performance levels required.

　　 3. Enterprise-level database functions:

　　 SQL Server 2000 distribu

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ted query by invoking the data from different databases, and these for the user is pletely transparent; distributed database will ensure that any updates to distributed data integrity; copy will enable us to the maintenance of multiple data Copies of these users to work independently, and then changes into the release database; SQL Server 2000 relational database engine can fully protect data integrity, management of plications can also modify the database to minimize overhead.

　　 4. Easy installation, deployment and use:

　　 SQL Server 2000 from a series of management and development tools, these tools made in a number of sites on the SQL Server installation, deployment, management and use easier. Developers can more quickly deliver SQL Server applications, and only require minimal installation and management of these applications can be achieved.

　　 5. Data Warehouse:

　　 Data Warehouse is included in SQL Server 2000 for analysis of aggregate data access and analysis for online analytical processing tool. This feature is only in Oracle and other DBMS in the more expensive can.

　　 2.1.1 New Features of SQL Server 2000

　　 Comprehensive SQL Server 7.0 extends the performance, reliability and ease of use. Increase in a series of functions, as follows:

　　 1. In regard to the strengthening of relational database

　　 2. Enhanced graphical management

　　 3. Enhance the joint database server

　　 2.2 Tools and utilities of SQL Server 2000

　　 SQL Server 2000 there are eight tools are:

　　 1. Enterprise Manager;

　　 2. Service Manager;

　　 3. Query Analyzer;

　　 4. Profiler;

　　 5 .import and export data;

　　 6. the server work tool ;

　　 7. the client work;

　　 8. to use tools, online help documentation.

　　 2.2.1 Enterprise Manager

　　 Enterprise Manager is based on a new known as the Microsoft Management Console (Microsoft Management Console) management of the public server environment, SQL Server 2000 it is one of the most important management tool.

　　 Enterprise Manager can not only configure the system environment and management of SQL Server, but also because it can be stacked to display the form of a list of all SQL Server objects, so all the SQL Server object the establishment and management were able to pass through it to plete.

　　 With business management to plete the operation:

　　 1. The management of SQL Server server; the establishment and management of databases; the establishment and management of tables, views, stored procedures, trigger procedures, roles, rules, default values, such as database objects, as well as user-defined data types; backup databases and transaction logs,

　　 To restore database; copied database; set task scheduling; set the alarm; to provide inter-server control of the drag-and-drop operation; manage user accounts; the establishment of Transact-SQL mand statements, as well as management and control of SQL Mail.

　　 2. In Enterprise Manager contains two windows, the left side of the window as a "tree" shown in the active window, the contents of the right side of the window is displayed.

　　 3. The left window click the plus sign to expand all the sub-project contains.

　　 4. An item by checking the node, you can see the right side of the window contains the contents of the project.

　　 2.2.2 Service Manager (Service Manager)

　　 SQL Server Service Manager is a server-side when the actual work of the most useful utilities, service manager to start, pause, continue and s论文范文 the database server in real-time services, the type of service provided, including: SQL Server, SQL Server Agent, Microsoft Search and Distributed Transaction Coordinator and so on.

　　 SQL server 简介

　　 1.SQL Server关系数据库简介

　　 1.SQL Server是由Microsoft开发和推广的关系数据库系统(DBMS),它最初是由Microsoft,Sybase和Ashton-Tate三家公司共同开发的,并于1988年推出了第一个OS/2版本.

　　 2.关系数据库(RDBMS)管理系统功能:

　　维护数据库数据之间的关系;

　　保证数据存储的正确性;

　　当出现系统故障的时候,将所有数据恢复到能够保证一致行的某种状态

　　 3.RDBMS:SQL Server,Oracle,DB/2,Sybase,Informix

　　 4.Non-RDBMS(File-based):Foxpro,Access

　　 2,SQL Server 2000的版本

　　 SQL Server 2000常见版本有:

　　企业版(Enterprise Edition)

　　支持所有SQL Server 2000的功能.该版本多用于大中型产品数据库服务器,并且可以支持大型网站,企业OLTP(联机事务处理)和大型数据仓库系统OLAP(联机分析处理)所要求的性能.

　　标准版(Standard Edition)

　　实用范围是小型的工作组或部门.它支持大多数的SQL Server2000功能.但是,不具有支持大型数据库,数据仓库和网站的功能.而且,不支持所有的关系数据库引擎的功能.

　　个人版(Personal Edition)

　　主要适用于移动用户,因为他们经常从网络上断开,而运行的应用程序却仍然需要SQL Server 2000的支持.除了事务处理复制功能以外,能够支持所有SQL Server 2000标准版支持的特性.

　　开发者版(Developer Edition)

　　适用于应用程序开发的版本,支持除图形化语言设置以外的SQL Server2000的所有其它功能.该版本主要适用于程序员在开发应用程序时,将SQL Server 2000作为其数据存储区.虽然开发版的功能齐备,但是只被授权为一个开发和测试系统,而不是一个产品服务器.

　　 2.1 SQL Server特点

　　 1.与因特网的集成:

　　 SQL Server 2000的数据库引擎全面支持XML(Extensive Markup Language,扩展标记语言),能使用户很容易地将数据库中的数据发布到Web页面上.

　　 2.可伸缩性与可用性:

　　可跨越从运行Windows 95/98的膝上型电脑到运行Windows 2000的大型多处理器等多种平台使用.另外,对联合服务器,索引视图等的支持,使得SQL Server 2000企业版可以升级到最大Web站点所需的性能级别.

　　 3.企业级数据库功能:

　　 SQL Server 2000分布式查询可以引用来自不同数据库的数据,而且这些对于用户来说是完全透明的;分布式数据库将保证任何分布式数据更新时的完整性;复制可以使我们能够维护多个数据复本,这些用户能够自主地进行工作,然后再将所做的修改合并到发布数据库;SQL Server 2000关系数据库引擎能够充分保护数据完整性,还可以将管理并发修改数据库开销到最小.

　　 4.易于安装,部署和使用:

　　 SQL Server 2000由一系列的管理和开发工具组成,这些工具使得在多个站点上进行SQL Server的安装,部署,管理和使用变得更加容易.开发人员可以更加快速地交付SQL Server应用程序,而且只需要进行最少的安装和管理就可以实现这些应用程序.

　　 5.数据仓库:

　　数据仓库是SQL Server 2000中包含的用于分析取和分析汇总数据以进行联机分析处理的工具.这个功能只在Oracle和其他更昂贵的DBMS中才有.

　　 2.1.1 SQL Server 2000新特性

　　全面扩展了SQL Server 7.0的性能,可靠性和易用性.增加了一系列的功能,具体如下:

　　 1.在关系数据库方面的增强

　　 2.图形管理增强

　　 3.增强的联合数据库服务器

　　 2.2 SQL Server 2000工具和实用程序

　　 SQL Server 2000有8个工具,分别是:

　　 1.企业管理器;

　　 2.服务管理器;

　　 3.查询分析器;

　　 4.事件探查器;

　　 5.导入和导出数据;

　　 6.服务器网络使用工具;

　　 7.客户端网络使用工具;

　　 8.联机帮助文档.

　　 2.2.1 企业管理器

　　企业管理器是基于一种新的被称为微软管理控制台(Microsoft Management Console)的公共服务器管理环境,它是SQL Server 2000中最重要的一个管理工具.

　　企业管理器不仅能够配置系统环境和管理SQL Server,而且由于它能够以层叠列表的形式来显示所有的SQL Server对象,因而所有SQL Server对象的建立与管理都可以通过它来完成.

　　用企业管理可以完成的操作:

　　 1.管理SQL Server服务器;建立与管理数据库;建立与管理表,视图,存储过程,触发程序,角色,规则,默认值等数据库对象,以及用户定义的数据类型;备份数据库和事务日志,恢复数据库;复制数据库;设置任务调度;设置警报;提供跨服务器的拖放控制操作;管理用户账户;建立Transact-SQL命令语句以及管理和控制SQL Mail.

　　 2.在企业管理器中包含两个窗口,左侧的窗口是以"树状目录"显示的活动窗口,右侧是显示内容的窗口.

　　 3.单击左侧窗口中的加号,可以展开各个项目包含的子项目.

　　 4.通过选中的某个项目的节点,可以在右侧的窗口中看到该项目包含的内容.

　　 2.2.2服务管理器(Service Manager)

　　 SQL Server服务管理器是在服务器端实际工作时最有用的实用程序,服务管理器用来启动,暂停,继续和停止数据库服务器的实时服务,其提供的服务类型包括:SQL Server,SQL Server*,Microsoft搜索和分布式事务协调器等.

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