免费智能真题库 > 历年试卷 > 信息系统项目管理师 > 2013年上半年信息系统项目管理师上午试卷综合知识

第23题

知识点：软件中间件 HTML J2EE 构件

关键词： J2EE 动态页构件章/节：信息系统及其技术和开发方法

在J2EE模型中，中间层的业务功能通过①构件实现，使用②实现业务逻辑处理结果的动态发布，构成动态的HTML页面，中间层也可以使用Servlet实现更为灵活的动态页面，①和②应填入（23）

A. Web Services 和EJB

B. EJB 和JSP

C. JSP和EJB

D. JNDI和JSP

与

分别表示一级标题的开始标签和结束标签，H1是一级标签的名称。除了在结束标签名称前面加一个斜杠符号（/）之外，开始标签的名称和结束标签的名称都是相同的。

某些元素还可以包含属性（attribute）。属性指背景颜色、字体属性（大小、颜色、正体、斜体等）、对齐方式等，它是包含在开始标签中的附加信息。例如，

表示这段文字是居中对齐的。同样可以指定图像的对齐属性（如图像在顶部、底部或中间）。

注意，HTML标签名称中的字母不区分大小写。例如，与<TITLE>或者<TiTlE>都是等效的。此外，Web浏览器不一定支持所有HTML标签。如果一个浏览器遇到它不认识的标签，那么它就不予理睬，但在这对标签之间的文本仍然会显示在计算机屏幕上。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> ③HTML文档的结构。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> HTML文挡是一种没有格式的文档，也称ASCII文件。因此，HTML文档可以使用任何一种文本编辑器进行编写。例如，Windows系统中的记事本（Notepad）、写字板（Wordpad），当然也可以使用字处理软件，例如微软公司的Word等。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 每个HTML文档都是由标签<HTML>开始、以标签</HTML>结束的。每个HTML文档都分成两个组成部分：文档头（head）和正文（body），并分别用<HEAD>…</HEAD>和<BODY>…</BODY>进行标记。文档头标签<HEAD>…</HEAD>之间所包含的内容是文档的名称（title）。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 下图是利用记事本编写的一个简单的HTML示例代码，将其保存后，利用IE浏览器打开后的效果如下图所示。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> <a href="http://www.rkpass.cn/ruankao_work_version_0103/content_image/9/9787302532279_0063_0037.jpg" target="_blank"><img alt="" width="553.35" height="228.55" src="http://www.rkpass.cn/ruankao_work_version_0103/content_image/9/9787302532279_0063_0037.jpg" /></a> </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> HTML的编辑及效果图 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td width="100%" align="center" colspan="" height="30" bgcolor=""></td> </tr> </table>  </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="top" > <table width="970" border="0" align="center" cellpadding="0" cellspacing="0" style="BACKGROUND: #f9f9f9;" > <tr> <td height="10"></td> </tr> </table> </td> <tr> <tr> <td align="center" valign="top" > <table width="970" border="0" align="center" cellpadding="0" cellspacing="0" style="BACKGROUND: #ffffff;" > <tr> <td height="5"><span id="mao_zsd_202106041439107218612"> </span></td> </tr> </table> </td> <tr> <tr> <td align="center" valign="top" > <table width="970" border="0" align="center" cellpadding="0" cellspacing="0" style="BACKGROUND: #ffffff;" > <tr> <td align="center" valign="top" bgcolor="" height="" width="100%" > <table width="98%" border="0" align="center" cellpadding="0" style=" BACKGROUND: #ffffff; RIGHT: 0px; TOP: 0px; left: 0px;POSITION: relative; HEIGHT: 32px;box-shadow:0 1px 1px rgba(0,0,0,0.15);" cellspacing="0"> <tr> <td height="140" width="100%" colspan="2" align="center" valign="top">  <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0" > <tr> <td width="100%" align="center" colspan="" height="" bgcolor=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0" style=" BACKGROUND: #ffffff; RIGHT: 0px; TOP: 0px; left: 0px;POSITION: relative; HEIGHT: 32px;" > <tr> <td width="100%" align="left" colspan="2" height="15"></td> </tr> <tr> <td width="100%" colspan="2" align="left" valign="top"> <table width="100%" border="0" bgcolor="" align="left" cellpadding="0" cellspacing="0" > <tr> <td align="center" valign="" width="100%"> <table width="100%" border="0" align="center" cellpadding="0" cellspacing="0" class="search_kemu"> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="" width="100%" height="6"> <span class="blue-v3"> J2EE</span> </td> </tr> <tr> <td align="left" valign="" width="100%" height="10"></td> </tr> <tr> <td align="left" valign="" width="100%" height="1" bgcolor="#e4e4e4"></td> </tr> <tr> <td align="left" valign="" width="100%" height="6"></td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> J2EE的全称是Java2EnterpriseEdition，它是由SUN公司领导，各厂商共同制定，并得到广泛认可的工业标准。业内许多大的应用服务器厂商如IBM、BEA、Oracle等都积极地参与J2EE标准的制定和实施工作。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> J2EE是专门为企业应用制定的标准，企业可以用它来编制企业级的应用，它为企业应用提供了数据库存取，交易完整性，可靠消息传递等功能。从公元2000年开始，越来越多的企业把自己的关键应用开始构建在支持J2EE标准的Web应用服务器之上。现在主流的一些J2EE应用服务器都可以支持企业应用所需的稳定性、可用性、安全性、可靠性、可扩展性等。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td width="100%" align="center" colspan="" height="30" bgcolor=""></td> </tr> </table>  </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="top" > <table width="970" border="0" align="center" cellpadding="0" cellspacing="0" style="BACKGROUND: #f9f9f9;" > <tr> <td height="10"></td> </tr> </table> </td> <tr> <tr> <td align="center" valign="top" > <table width="970" border="0" align="center" cellpadding="0" cellspacing="0" style="BACKGROUND: #ffffff;" > <tr> <td height="5"><span id="mao_zsd_202106031244154703465"> </span></td> </tr> </table> </td> <tr> <tr> <td align="center" valign="top" > <table width="970" border="0" align="center" cellpadding="0" cellspacing="0" style="BACKGROUND: #ffffff;" > <tr> <td align="center" valign="top" bgcolor="" height="" width="100%" > <table width="98%" border="0" align="center" cellpadding="0" style=" BACKGROUND: #ffffff; RIGHT: 0px; TOP: 0px; left: 0px;POSITION: relative; HEIGHT: 32px;box-shadow:0 1px 1px rgba(0,0,0,0.15);" cellspacing="0"> <tr> <td height="140" width="100%" colspan="2" align="center" valign="top">  <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0" > <tr> <td width="100%" align="center" colspan="" height="" bgcolor=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0" style=" BACKGROUND: #ffffff; RIGHT: 0px; TOP: 0px; left: 0px;POSITION: relative; HEIGHT: 32px;" > <tr> <td width="100%" align="left" colspan="2" height="15"></td> </tr> <tr> <td width="100%" colspan="2" align="left" valign="top"> <table width="100%" border="0" bgcolor="" align="left" cellpadding="0" cellspacing="0" > <tr> <td align="center" valign="" width="100%"> <table width="100%" border="0" align="center" cellpadding="0" cellspacing="0" class="search_kemu"> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="" width="100%" height="6"> <span class="blue-v3"> 构件</span> </td> </tr> <tr> <td align="left" valign="" width="100%" height="10"></td> </tr> <tr> <td align="left" valign="" width="100%" height="1" bgcolor="#e4e4e4"></td> </tr> <tr> <td align="left" valign="" width="100%" height="6"></td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 为了达到门户站点的基本要求，一个企业的网站应当由以下构件组成： </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （1）应用服务器（Application Server）。主要用于企业较大规模电子商务应用的开发、发布和管理，同时实现与企业原有系统的集成。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （2）工作流和群件服务器。主要用于使工作人员和商业伙伴能通过Internet共享资源、协同工作。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （3）内容管理子系统。简化企业网站的产品管理、提高效率，并将相应的、经过筛选的内容发送给最终用户。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （4）目录服务器。企业使用它来管理防火墙内外的用户、资源和控制安全权限，同时为用户的通信和电子商务提供一个通道。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （5）性能优化工具。改善网站服务质量，包括流量管理、动态数据缓存、网络动态负载（Load Balancing）、知识管理等。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （6）邮件和消息服务器。使企业和服务提供者能为所有员工、合作伙伴和客户社区提供商业级的通信架构。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （7）个性化信息服务。在实时分析用户数据的基础上提供一对一的交易平台。通过对用户行为的更好理解，企业更跟踪、分析和理解网站用户。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （8）搜索引擎。用户提供更广泛的资源。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （9）安全服务器。包括数据安全、应用安全和交易完全。其基本内容有用防火墙阻止对网络的非授权访问，在安全和个人的角色授权的基础上，只需一次登录就可以访问网站的所有应用，通过提供一种对在线交易的每一方的可信任的授权方式，帮助客户、合作伙伴和员工访问Internet应用。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （10）网站服务器（Web Server）。将各种网站的信息发布给用户。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 以上是通常构建网站所需要的构件，企业可针对自己的特点以及网站规模大小，应用的类型等自行选择。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 在网站结构的实现上，通常在逻辑上将网站分为三层：表示层、应用逻辑层、数据层。这种结构使得网站具有较好的可扩充性，将表示层与业务功能的实现分离开来，能够更灵活地适应业务的发展。网站不需要对业务逻辑组件进行任何变动，就能够适用新出现的表示形式和客户端。例如，为了使用户更方便地在网站上购物，网站调整了页面格局和页面风格。由于网站结构层次分明，只需要改动网站表示层，业务逻辑层和数据连接层则不需要改变。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （11）表示层和相关技术。表示层用于为最终用户提供一个友好的用户界面，接受用户提交的事件，并将处理的结果返还给用户。这一层作为应用的前端和“窗口”，决定了用户对网站优劣的评价和总体印象。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 网站从总体上说是独立于客户端的，客户端包括基于浏览器的HTML客户端、给予Java的客户端、传统的C/C++应用、Power Builder客户端以及VB客户端。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 在表示层除了使用最基本的HTML语言外，通常还利用JavaScript Internet脚本语言，以及Java Internet程序开发语言。JavaScript程序运行在客户端，能够完成用户事件获取、数据提交前的合法性校验、错误检查和实现动画效果等。而利用Java开发的JavaServlet程序运行于服务器端，负责实现与业务逻辑层的交互，从业务逻辑层获得数据，并将用户提交的信息传给业务逻辑层，而基于Java语言的JSP程序，则实现数据的动态显示，它将JavaServlet程序获得的数据形成相应的HTML页面传给客户端。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 为了适应电子商务的各种需求，新的表示层技术不断发展。如XML（可扩展标记语言）和RDF（资源描述框架）等都是当前最新的、对表示层产生重大影响的技术。XML通过一种结构化的文本方式来表述数据；RDF提供一种统一的、可互操作的方法通过Internet在程序间交换元数据。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （12）商务逻辑与实现。商务逻辑层是电子商务系统的核心，也是系统建造过程中的重点和难点。商务逻辑层包括商务应用程序、支持平台（包括商务服务层、商务支持层和基础支持层）。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 支持层向上层（商务应用层）提供的服务主要包括：表达、商务支持、运行支持、开发与集成服务。构成支持平台的技术产品至少应当包括：Web服务器、商务支持软件、集成与开发工具、计算机主机、网络及其他系统软件（如操作系统、管理工具软件等）。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 通常，Web服务器、商务支持软件、部分集成开发环境被集成到一个被称为“应用服务器”的软件包里，所以商务逻辑层在物理上可以简化为以下三个部门：应用软件（实现商务逻辑）；应用服务器（为应用软件提供软件支持平台）和其他支持软件；计算机主机及网络（为应用软件提供硬件支持平台）。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 构造商务逻辑层的任务是为选择合适的应用服务器和其他支持软件，开发实现商务逻辑的应用软件系统。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> （13）数据层及实现。构造数据层的关键是开发电子商务与外部系统、内部资源系统的接口，完成系统集成。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 数据层的数据源主要包括：相关信息系统（如ERP系统）的数据与企业的数据库，企业与协作企业（如供应商）间交换的数据，企业与银行间交换的数据，企业与认证中心之间的认证数据，企业与其他商务中介交换的电子数据。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" valign="" bgcolor="" width="100%" style=" " > <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr > <td height=""> <table width="100%" border="0" bgcolor="" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="left" valign="bottom" width="100%" height="28"> <span class="shiwu_text_v2"> 由于企业商务逻辑的处理过程是一个从市场、销售、采购到客户服务的整体，所以必须将商务逻辑处理过程中所涉及到的数据集成到一起，因此构造数据层的任务是：实现电子商务系统与企业内部和外部信息系统之间的网络互联，并确保安全的网络环境，基于应用服务器平台的商务应用系统与企业内部数据的共享。 </span> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td width="100%" align="center" colspan="" height="30" bgcolor=""></td> </tr> </table>  </td> </tr> </table> </td> </tr> </table> </td> </tr>   <tr> <td align="center" valign="top" height="10"></td> </tr>  <tr> <td 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height="" width="" > <span class="shisi_text_hui_qian">/</span> </td> </tr> </table> </td> <td align="center" valign="top" bgcolor="" height="" width="" > <table width="100%" valign="top" style=" BACKGROUND: #FFFFFF;" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="center" valign="middle" height="30" width="" style="" > <a href="http://www.rkpass.cn/tk_timu/1_1_62_xuanze.html"><span class="shisi_text_hui">62</span></a> </td> <td align="center" valign="middle" height="" width="" > <span class="shisi_text_hui_qian">/</span> </td> </tr> </table> </td> <td align="center" valign="top" bgcolor="" height="" width="" > <table width="100%" valign="top" style=" BACKGROUND: #FFFFFF;" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="center" valign="middle" height="30" width="" style="" > <a href="http://www.rkpass.cn/tk_timu/1_1_63_xuanze.html"><span class="shisi_text_hui">63</span></a> </td> <td align="center" valign="middle" height="" width="" > <span class="shisi_text_hui_qian">/</span> </td> </tr> </table> </td> <td align="center" valign="top" bgcolor="" height="" width="" > <table width="100%" valign="top" style=" BACKGROUND: #FFFFFF;" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="center" valign="middle" height="30" width="" style="" > <a href="http://www.rkpass.cn/tk_timu/1_1_64_xuanze.html"><span class="shisi_text_hui">64</span></a> </td> <td align="center" valign="middle" height="" width="" > <span class="shisi_text_hui_qian">/</span> </td> </tr> </table> </td> <td align="center" valign="top" bgcolor="" height="" width="" > <table width="100%" valign="top" style=" BACKGROUND: #FFFFFF;" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="center" valign="middle" height="30" width="" style="" > <a href="http://www.rkpass.cn/tk_timu/1_1_65_xuanze.html"><span class="shisi_text_hui">65</span></a> </td> <td align="center" valign="middle" height="" width="" > <span class="shisi_text_hui_qian">/</span> </td> </tr> </table> </td> <td align="center" valign="top" bgcolor="" height="" width="" > <table width="100%" valign="top" style=" BACKGROUND: #FFFFFF;" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="center" valign="middle" height="30" width="" style="" > <a href="http://www.rkpass.cn/tk_timu/1_1_66_xuanze.html"><span class="shisi_text_hui">66</span></a> </td> <td align="center" valign="middle" height="" width="" > <span class="shisi_text_hui_qian">/</span> </td> </tr> </table> </td> <td align="center" valign="top" bgcolor="" height="" width="" > <table width="100%" valign="top" style=" BACKGROUND: #FFFFFF;" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="center" valign="middle" height="30" width="" style="" > <a href="http://www.rkpass.cn/tk_timu/1_1_67_xuanze.html"><span class="shisi_text_hui">67</span></a> </td> <td align="center" valign="middle" height="" width="" > <span class="shisi_text_hui_qian">/</span> </td> </tr> </table> </td> <td align="center" valign="top" bgcolor="" height="" width="" > <table width="100%" valign="top" style=" BACKGROUND: #FFFFFF;" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="center" valign="middle" height="30" width="" style="" > <a href="http://www.rkpass.cn/tk_timu/1_1_68_xuanze.html"><span class="shisi_text_hui">68</span></a> </td> <td align="center" valign="middle" height="" width="" > <span class="shisi_text_hui_qian">/</span> </td> </tr> </table> </td> <td align="center" valign="top" bgcolor="" height="" width="" > <table width="100%" valign="top" style=" BACKGROUND: #FFFFFF;" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td align="center" valign="middle" height="30" width="" style="" > <a href="http://www.rkpass.cn/tk_timu/1_1_69_xuanze.html"><span class="shisi_text_hui">69</span></a> </td> <td align="center" valign="middle" height="" width="" > <span 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