外文文献原文
What is https://www.doczj.com/doc/ce10699441.html,?
https://www.doczj.com/doc/ce10699441.html, is a programming framework built on the common language runtime that can be used on a server to build powerful Web applications. https://www.doczj.com/doc/ce10699441.html, offers several important advantages over previous Web development models: Enhanced Performance. https://www.doczj.com/doc/ce10699441.html, is compiled common language runtime code running on the server. Unlike its interpreted predecessors, https://www.doczj.com/doc/ce10699441.html, can take advantage of early binding, just-in-time compilation, native optimization, and caching services right out of the box. This amounts to dramatically better performance before you ever write a line of code.
World-Class Tool Support. The https://www.doczj.com/doc/ce10699441.html, framework is complemented by a rich toolbox and designer in the Visual Studio integrated development environment. WYSIWYG editing, drag-and-drop server controls, and automatic deployment are just a few of the features this powerful tool provides.
Power and Flexibility. Because https://www.doczj.com/doc/ce10699441.html, is based on the common language runtime, the power and flexibility of that entire platform is available to Web application developers. The .NET Framework class library, Messaging, and Data Access solutions are all seamlessly accessible from the Web. https://www.doczj.com/doc/ce10699441.html, is also language-independent, so you can choose the language that best applies to your application or partition your application across many languages. Further, common language runtime interoperability guarantees that your existing investment in COM-based development is preserved when migrating to https://www.doczj.com/doc/ce10699441.html,.
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Manageability. https://www.doczj.com/doc/ce10699441.html, employs a text-based, hierarchical configuration system, which simplifies applying settings to your server environment and Web applications. Because configuration information is stored as plain text, new settings may be applied without the aid of local administration tools. This "zero local administration" philosophy extends to deploying https://www.doczj.com/doc/ce10699441.html, Framework applications as well. An https://www.doczj.com/doc/ce10699441.html, Framework application is deployed to a server simply by copying the necessary files to the server. No server restart is required, even to deploy or replace running compiled code.
Scalability and Availability. https://www.doczj.com/doc/ce10699441.html, has been designed with scalability in mind, with features specifically tailored to improve performance in clustered and multiprocessor environments. Further, processes are closely monitored and managed by the https://www.doczj.com/doc/ce10699441.html, runtime, so that if one misbehaves (leaks, deadlocks), a new process can be created in its place, which helps keep your application constantly available to
handle requests.
Customizability and Extensibility. https://www.doczj.com/doc/ce10699441.html, delivers a well-factored architecture that allows developers to "plug-in" their code at the appropriate level. In fact, it is possible to extend or replace any subcomponent of the https://www.doczj.com/doc/ce10699441.html, runtime with your own custom-written component. Implementing custom authentication or state services has never been easier.
Security. With built in Windows authentication and per-application configuration, you can be assured that your applications are secure.
Data Binding Overview and Syntax
https://www.doczj.com/doc/ce10699441.html, introduces a new declarative data binding syntax. This extremely flexible syntax permits the developer to bind not only to data sources, but also to simple properties, collections, expressions, and even results returned from method calls. The following table shows some examples of the new syntax.
Although this syntax looks similar to the ASP shortcut for Response.Write -- <%= %> -- its behavior is quite different. Whereas the ASP Response.Write shortcut syntax was evaluated when the page was processed, the https://www.doczj.com/doc/ce10699441.html, data binding syntax is evaluated only when the DataBind method is invoked.
DataBind is a method of the Page and all server controls. When you call DataBind on a parent control, it cascades to all of the children of the control. So, for example, DataList1.DataBind() invokes the DataBind method on each of the controls in the DataList templates. Calling DataBind on the Page -- Page.DataBind() or simply DataBind() -- causes all data binding expressions on the page to be evaluated. DataBind is commonly called from the Page_Load event, as shown in the following example.
You can use a binding expression almost anywhere in the declarative section of an .aspx page, provided it evaluates to the expected data type at run time. The simple property, expression, and method examples above display text to the user when evaluated. In these cases, the data binding expression must evaluate to a value of type String. In the collection example, the data binding expression evaluates to a value of valid type for the DataSource property of ListBox. You might find it necessary to coerce the type of value in your binding expression to produce the desired result. For example, if count is an integer:
Number of Records: <%# count.ToString() %>
Binding to Simple Properties
The https://www.doczj.com/doc/ce10699441.html, data binding syntax supports binding to public variables, properties of the Page, and properties of other controls on the page.
The following example illustrates binding to a public variable and simple property on the page. Note that these values are initialized before DataBind() is called.
The following example illustrates binding to a property of another control. Binding to Collections and Lists
List server controls like DataGrid, ListBox and HTMLSelect use a collection as a data source. The following examples illustrate binding to usual common language runtime collection types. These controls can bind only to collections that support the
IEnumerable, ICollection, or IListSource interface. Most commonly, you'll bind to ArrayList, Hashtable, DataView and DataReader.
The following example illustrates binding to an ArrayList.
The following example illustrates binding to a DataView. Note that the DataView class is defined in the System.Data namespace.
The following example illustrates binding to a Hashtable.
Binding Expressions or Methods
Often, you'll want to manipulate data before binding to your page or a control. The following example illustrates binding to an expression and the return value of a method.
DataBinder.Eval
The https://www.doczj.com/doc/ce10699441.html, framework supplies a static method that evaluates late-bound data binding expressions and optionally formats the result as a string. DataBinder.Eval is convenient in that it eliminates much of the explicit casting the developer must do to coerce values to the desired data type. It is particularly useful when data binding controls within a templated list, because often both the data row and the data field must be cast.
Consider the following example, where an integer will be displayed as a currency string. With the standard https://www.doczj.com/doc/ce10699441.html, data binding syntax, you must first cast the type of the data row in order to retrieve the data field, IntegerValue. Next, this is passed as an argument to the String.Format method.
This syntax can be complex and difficult to remember. In contrast, DataBinder.Eval is simply a method with three arguments: the naming container for the data item, the data field name, and a format string. In a templated list like DataList, DataGrid, or Repeater, the naming container is always Container.DataItem. Page is another naming container that can be used with DataBinder.Eval.
The format string argument is optional. If it is omitted, DataBinder.Eval returns a value of type object, as shown in the following example.
It is important to note that DataBinder.Eval can carry a noticeable performance penalty over the standard data binding syntax because it uses late-bound reflection. Use DataBinder.Eval judiciously, especially when string formatting is not required.
Section Summary
The https://www.doczj.com/doc/ce10699441.html, declarative data binding syntax uses the <%# %> notation.
You can bind to data sources, properties of the page or another control, collections, expressions, and results returned from method calls.
List controls can bind to collections that support the ICollection, IEnumerable, or IListSource interface, such as ArrayList, Hashtable, DataView, and DataReader.
DataBinder.Eval is a static method for late binding. Its syntax can be simpler than the standard data binding syntax, but performance is slower.
Section Summary
The DataList and Repeater controls provide developers fine-tuned control over the rendering of data-bound lists.
Rendering of bound data is controlled using a template, such as the HeaderTemplate, FooterTemplate, or ItemTemplate.
The Repeater control is a general-purpose iterator, and does not insert anything in its rendering that is not contained in a template.
The DataList control offers more control over the layout and style of items, and outputs its own rendering code for formatting.
The DataList supports the Select, Edit/Update/Cancel, and Item Command events, which can be handled at the page level by wiring event handlers to the DataList's Command events.
DataList supports a SelectedItemTemplate and EditItemTemplate for control over the rendering of a selected or editable item.
Controls can be programmatically retrieved from a template using the Control.FindControl method. This should be called on a DataListItem retrieved from the DataList's Items collection.
外文文献译文
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附件1：外文资料翻译译文 基于WebGIS的校园三维电子地图的设计与实现 一．导言 如今，数字化和信息化是当今时代的主题。随着信息革命和计算机科学的发展，计算机技术已经渗透到科学的各个领域，并引起了许多革命性的变化，在这些科目，古代制图学也不例外。随着技术和文化的不断进步，地图变化的形式和内容也随之更新。在计算机图形学中，地理信息系统（GIS）不断应用到Web，制作和演示的传统方式经历了巨大的变化，由于先进的信息技术的发展，地图的应用已经大大延长。在这些情况下，绘图将面临广阔的发展前景。电子地图是随之应运而生的产品之一。随着计算机技术，计算机图形学理论，遥感技术，航空摄影测量技术和其他相关技术的飞速发展。用户需要的三维可视化，动态的交互性和展示自己的各种地理相关的数据处理和分析，如此多的关注应支付的研究三维地图。东北石油大学及其周边地区的基础上本文设计并建立三维电子地图。 二．系统设计 基于WebGIS的校园三维电子地图系统的具有普通地图的一般特性。通过按键盘上的箭头键（上，下，左，右），可以使地图向相应的方向移动。通过拖动鼠标，可以查看感兴趣的任何一个地方。使用鼠标滚轮，可以控制地图的大小，根据用户的需求来查看不同缩放级别的地图。在地图的左下角会显示当前鼠标的坐标。在一个div层，我们描绘了一个新建筑物的热点，这层可以根据不同的地图图层的显示，它也可以自动调整。通过点击热点，它可以显示热点的具体信息。也可以输入到查询的信息，根据自己的需要，并得到一些相关的信息。此外，通过点击鼠标，人们可以选择检查的三维地图和卫星地图。 主要功能包括： ?用户信息管理：检查用户名和密码，根据权限设置级别的认证，允许不同权限的用户通过互联网登录系统。 ?位置信息查询：系统可以为用户提供模糊查询和快速定位。
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微软Visual Studio 1微软Visual Studio Visual Studio 是微软公司推出的开发环境，Visual Studio可以用来创建Windows平台下的Windows应用程序和网络应用程序，也可以用来创建网络服务、智能设备应用程序和Office 插件。Visual Studio是一个来自微软的集成开发环境IDE，它可以用来开发由微软视窗，视窗手机，Windows CE、.NET框架、.NET精简框架和微软的Silverlight支持的控制台和图形用户界面的应用程序以及Windows窗体应用程序，网站，Web应用程序和网络服务中的本地代码连同托管代码。 Visual Studio包含一个由智能感知和代码重构支持的代码编辑器。集成的调试工作既作为一个源代码级调试器又可以作为一台机器级调试器。其他内置工具包括一个窗体设计的GUI应用程序，网页设计师，类设计师，数据库架构设计师。它有几乎各个层面的插件增强功能，包括增加对支持源代码控制系统（如Subversion和Visual SourceSafe）并添加新的工具集设计和可视化编辑器，如特定于域的语言或用于其他方面的软件开发生命周期的工具（例如Team Foundation Server的客户端：团队资源管理器）。 Visual Studio支持不同的编程语言的服务方式的语言，它允许代码编辑器和调试器（在不同程度上）支持几乎所有的编程语言，提供了一个语言特定服务的存在。内置的语言中包括C/C + +中（通过Visual C++）,https://www.doczj.com/doc/ce10699441.html,（通过Visual https://www.doczj.com/doc/ce10699441.html,），C＃中（通过Visual C＃）和F＃（作为Visual Studio 2010），为支持其他语言，如M,Python,和Ruby等，可通过安装单独的语言服务。它也支持的 XML/XSLT,HTML/XHTML ,JavaScript和CSS.为特定用户提供服务的Visual Studio也是存在的：微软Visual Basic，Visual J＃、Visual C＃和Visual C++。 微软提供了“直通车”的Visual Studio 2010组件的Visual Basic和Visual C＃和Visual C + +，和Visual Web Developer版本，不需任何费用。Visual Studio 2010、2008年和2005专业版，以及Visual Studio 2005的特定语言版本（Visual Basic、C++、C＃、J＃），通过微软的下载DreamSpark计划，对学生免费。 2架构 Visual Studio不支持任何编程语言，解决方案或工具本质。相反，它允许插入各种功能。特定的功能是作为一个VS压缩包的代码。安装时，这个功能可以从服务器得到。IDE提供三项服务：SVsSolution，它提供了能够列举的项目和解决方案; SVsUIShell，它提供了窗口和用户界面功能（包括标签，工具栏和工具窗口）和SVsShell，它处理VS压缩包的注册。此外，IDE还可以负责协调和服务之间实现通信。所有的编辑器，设计器，项目类型和其他工具都是VS压缩包存在。Visual Studio 使用COM访问VSPackage。在Visual Studio SDK中还包括了管理软件包框架(MPF)，这是一套管理的允许在写的CLI兼容的语言的任何围绕COM的接口。然而，MPF并不提供所有的Visual Studio COM 功能。
计算机网络安全综述学生姓名：李嘉伟 学号：11209080279 院系：信息工程学院指导教师姓名：夏峰二零一三年十月
［摘要］ 随着计算机网络技术的快速发展，网络安全日益成为人们关注的焦点。本文分析了影响网络安全的主要因素及攻击的主要方式，从管理和技术两方面就加强计算机网络安全提出了针对性的建议。 ［关键词］ 计算机网络；安全；管理；技术；加密；防火墙 一．引言 计算机网络是一个开放和自由的空间，但公开化的网络平台为非法入侵者提供了可乘之机，黑客和反黑客、破坏和反破坏的斗争愈演愈烈，不仅影响了网络稳定运行和用户的正常使用，造成重大经济损失，而且还可能威胁到国家安全。如何更有效地保护重要的信息数据、提高计算机网络的安全性已经成为影响一个国家的政治、经济、军事和人民生活的重大关键问题。本文通过深入分析网络安全面临的挑战及攻击的主要方式，从管理和技术两方面就加强计算机网络安全提出针对性建议。
二．正文 1.影响网络安全的主要因素［1］ 计算机网络安全是指“为数据处理系统建立和采取的技术和管理的安全保护，保护计算机硬件、软件数据不因偶然和恶意的原因而遭到破坏、更改和泄漏”。计算机网络所面临的威胁是多方面的，既包括对网络中信息的威胁，也包括对网络中设备的威胁，但归结起来，主要有三点：一是人为的无意失误。如操作员安全配置不当造成系统存在安全漏洞，用户安全意识不强，口令选择不慎，将自己的帐号随意转借他人或与别人共享等都会给网络安全带来威胁。二是人为的恶意攻击。这也是目前计算机网络所面临的最大威胁，比如敌手的攻击和计算机犯罪都属于这种情况，此类攻击又可以分为两种：一种是主动攻击，它以各种方式有选择地破坏信息的有效性和完整性；另一类是被动攻击，它是在不影响网络正常工作的情况下，进行截获、窃取、破译以获得重要机密信息。这两种攻击均可对计算机网络造成极大的危害，并导致机密数据的泄漏。三是网络软件的漏洞和“后门”。任何一款软件都或多或少存在漏洞，这些缺陷和漏洞恰恰就是黑客进行攻击的首选目标。绝大部分网络入侵事件都是因为安全措施不完善，没有及时补上系统漏洞造成的。此外，软件公司的编程人员为便于维护而设置的软件“后门”也是不容忽视的巨大威胁，一旦“后门”洞开，别人就能随意进入系统，后果不堪设想。
外文文献翻译（译成中文2000字左右）： As research laboratories become more automated,new problems are arising for laboratory managers.Rarely does a laboratory purchase all of its automation from a single equipment vendor. As a result,managers are forced to spend money training their users on numerous different software packages while purchasing support contracts for each. This suggests a problem of scalability. In the ideal world,managers could use the same software package to control systems of any size; from single instruments such as pipettors or readers to large robotic systems with up to hundreds of instruments. If such a software package existed, managers would only have to train users on one platform and would be able to source software support from a single vendor. If automation software is written to be scalable, it must also be flexible. Having a platform that can control systems of any size is far less valuable if the end user cannot control every device type they need to use. Similarly, if the software cannot connect to the customer’s Laboratory Information Management System (LIMS) database,it is of limited usefulness. The ideal automation software platform must therefore have an open architecture to provide such connectivity. Two strong reasons to automate a laboratory are increased throughput and improved robustness. It does not make sense to purchase high-speed automation if the controlling software does not maximize throughput of the system. The ideal automation software, therefore, would make use of redundant devices in the system to increase throughput. For example, let us assume that a plate-reading step is the slowest task in a given method. It would make that if the system operator connected another identical reader into the system, the controller software should be able to use both readers, cutting the total throughput time of the reading step in half. While resource pooling provides a clear throughput advantage, it can also be used to make the system more robust. For example, if one of the two readers were to experience some sort of error, the controlling software should be smart enough to route all samples to the working reader without taking the entire system offline. Now that one embodiment of an ideal automation control platform has been described let us see how the use of C++ helps achieving this ideal possible. DISCUSSION C++: An Object-Oriented Language Developed in 1983 by BjarneStroustrup of Bell Labs,C++ helped propel the concept of object-oriented programming into the mainstream.The term ‘‘object-oriented programming language’’ is a familiar phrase that has been in use for decades. But what does it mean? And why is it relevant for automation software? Essentially, a language that is object-oriented provides three important programming mechanisms:
毕业设计(论文)外文资料翻译 学院 专业 学生姓名 班级学号 外文出处 附件：1.外文资料翻译译文；2.外文原文 指导教师评价： 1．翻译内容与课题的结合度：□优□良□中□差2．翻译内容的准确、流畅：□优□良□中□差3．专业词汇翻译的准确性：□优□良□中□差4．翻译字符数是否符合规定要求：□符合□不符合 指导教师签名： 年月日
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毕业设计(论文)外文资料翻译 系：信息工程学院 专业：计算机科学与技术 姓名： 学号： 外文出处：Chris Haseman. Android-essential (用外文写) s[M].London:Spring--Verlag,2008 .8-13. 附件： 1.外文资料翻译译文；2.外文原文。 指导教师评语： 签名： 年月日注：请将该封面与附件装订成册。
附件1：外文资料翻译译文 无线局域网 一、为何使用无线局域网络 对于局域网络管理主要工作之一，对于铺设电缆或是检查电缆是否断线这种耗时的工作，很容易令人烦躁，也不容易在短时间内找出断线所在。再者，由于配合企业及应用环境不断的更新与发展，原有的企业网络必须配合重新布局，需要重新安装网络线路，虽然电缆本身并不贵，可是请技术人员来配线的成本很高，尤其是老旧的大楼，配线工程费用就更高了。因此，架设无线局域网络就成为最佳解决方案。 二、什么情形需要无线局域网络 无线局域网络绝不是用来替代有限局域网络，而是用来弥补有线局域网络之不足，以达到网络延伸之目的，下列情形可能须要无线局域网络。 ●无固定工作场所的使用者 ●有线局域网络架设受环境限制 ●作为有线局域网络的备用系统 三、无线局域网络存取技术 目前厂商在设计无线局域网络产品时，有相当多种存取设计方式，大致可分为三大类：窄频微波技术、展频(Spread Spectrum)技术、及红外线(Infrared)技术，每种技术皆有其优缺点、限制及比较，接下来是这些技术方法的详细探讨。 1.技术要求 由于无线局域网需要支持高速、突发的数据业务，在室内使用还需要解决多径衰落以及各子网间串扰等问题。具体来说，无线局域网必须实现以下技术要求： 1)可靠性：无线局域网的系统分组丢失率应该低于10-5，误码率应该低 于10-8。
网络安全外文翻译文献 (文档含英文原文和中文翻译) 翻译： 计算机网络安全与防范 1.1引言 计算机技术的飞速发展提供了一定的技术保障，这意味着计算机应用已经渗透到社会的各个领域。在同一时间，巨大的进步和网络技术的普及，社会带来了巨大的经济利润。然而，在破坏和攻击计算机信息系统的方法已经改变了很多的网络环境下，网络安全问题逐渐成为计算机安全的主流。
1.2网络安全 1.2.1计算机网络安全的概念和特点 计算机网络的安全性被认为是一个综合性的课题，由不同的人，包括计算机科学、网络技术、通讯技术、信息安全技术、应用数学、信息理论组成。作为一个系统性的概念，网络的安全性由物理安全、软件安全、信息安全和流通安全组成。从本质上讲，网络安全是指互联网信息安全。一般来说，安全性、集成性、可用性、可控性是关系到网络信息的相关理论和技术，属于计算机网络安全的研究领域。相反，狭隘“网络信息安全”是指网络安全，这是指保护信息秘密和集成，使用窃听、伪装、欺骗和篡夺系统的安全性漏洞等手段，避免非法活动的相关信息的安全性。总之，我们可以保护用户利益和验证用户的隐私。 计算机网络安全有保密性、完整性、真实性、可靠性、可用性、非抵赖性和可控性的特点。 隐私是指网络信息不会被泄露给非授权用户、实体或程序，但是授权的用户除外，例如，电子邮件仅仅是由收件人打开，其他任何人都不允许私自这样做。隐私通过网络信息传输时，需要得到安全保证。积极的解决方案可能会加密管理信息。虽然可以拦截，但它只是没有任何重要意义的乱码。 完整性是指网络信息可以保持不被修改、破坏，并在存储和传输过程中丢失。诚信保证网络的真实性，这意味着如果信息是由第三方或未经授权的人检查，内容仍然是真实的和没有被改变的。因此保持完整性是信息安全的基本要求。 可靠性信息的真实性主要是确认信息所有者和发件人的身份。 可靠性表明该系统能够在规定的时间和条件下完成相关的功能。这是所有的网络信息系统的建立和运作的基本目标。 可用性表明网络信息可被授权实体访问，并根据自己的需求使用。 不可抵赖性要求所有参加者不能否认或推翻成品的操作和在信息传输过程中的承诺。
毕业设计（论文） 外文翻译 题目西安市水源工程中的 水电站设计 专业水利水电工程 班级 学生 指导教师 2016年
研究钢弧形闸门的动态稳定性 牛志国 河海大学水利水电工程学院，中国南京，邮编210098 nzg_197901@https://www.doczj.com/doc/ce10699441.html,，niuzhiguo@https://www.doczj.com/doc/ce10699441.html, 李同春 河海大学水利水电工程学院，中国南京，邮编210098 ltchhu@https://www.doczj.com/doc/ce10699441.html, 摘要 由于钢弧形闸门的结构特征和弹力，调查对参数共振的弧形闸门的臂一直是研究领域的热点话题弧形弧形闸门的动力稳定性。在这个论文中，简化空间框架作为分析模型，根据弹性体薄壁结构的扰动方程和梁单元模型和薄壁结构的梁单元模型，动态不稳定区域的弧形闸门可以通过有限元的方法，应用有限元的方法计算动态不稳定性的主要区域的弧形弧形闸门工作。此外，结合物理和数值模型，对识别新方法的参数共振钢弧形闸门提出了调查，本文不仅是重要的改进弧形闸门的参数振动的计算方法，但也为进一步研究弧形弧形闸门结构的动态稳定性打下了坚实的基础。 简介 低举升力，没有门槽，好流型，和操作方便等优点，使钢弧形闸门已经广泛应用于水工建筑物。弧形闸门的结构特点是液压完全作用于弧形闸门，通过门叶和主大梁，所以弧形闸门臂是主要的组件确保弧形闸门安全操作。如果周期性轴向载荷作用于手臂，手臂的不稳定是在一定条件下可能发生。调查指出:在弧形闸门的20次事故中，除了极特殊的破坏情况下，弧形闸门的破坏的原因是弧形闸门臂的不稳定;此外，明显的动态作用下发生破坏。例如:张山闸，位于中国的江苏省，包括36个弧形闸门。当一个弧形闸门打开放水时，门被破坏了，而其他弧形闸门则关闭，受到静态静水压力仍然是一样的，很明显，一个动态的加载是造成的弧形闸门破坏一个主要因素。因此弧形闸门臂的动态不稳定是造成弧形闸门(特别是低水头的弧形闸门)破坏的主要原是毫无疑问。
专业外文翻译 题目JSP Technology Conspectus and Specialties 系（院）计算机系 专业计算机科学与技术 班级 学生姓名 学号 指导教师 职称讲师 二〇一三年五月十六日
JSP Technology Conspectus and Specialties The JSP (Java Server Pages) technology is used by the Sun micro-system issued by the company to develop dynamic Web application technology. With its easy, cross-platform, in many dynamic Web application programming languages, in a short span of a few years, has formed a complete set of standards, and widely used in electronic commerce, etc. In China, the JSP now also got more extensive attention; get a good development, more and more dynamic website to JSP technology. The related technologies of JSP are briefly introduced. The JSP a simple technology can quickly and with the method of generating Web pages. Use the JSP technology Web page can be easily display dynamic content. The JSP technology are designed to make the construction based on Web applications easier and efficient, and these applications and various Web server, application server, the browser and development tools work together. The JSP technology isn't the only dynamic web technology, also not the first one, in the JSP technology existed before the emergence of several excellent dynamic web technologies, such as CGI, ASP, etc. With the introduction of these technologies under dynamic web technology, the development and the JSP. Technical JSP the development background and development history In web brief history, from a world wide web that most of the network information static on stock transactions evolution to acquisition of an operation and infrastructure. In a variety of applications, may be used for based on Web client, look no restrictions. Based on the browser client applications than traditional based on client/server applications has several advantages. These benefits include almost no limit client access and extremely simplified application deployment and management (to update an application, management personnel only need to change the program on a server, not thousands of installation in client applications). So, the software industry is rapidly to build on the client browser multilayer application. The rapid growth of exquisite based Web application requirements development of
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