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<td align="center"><h1>AJAX调用WCF服务项模板[ASP.NET]</h1>
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来源：IT168 发布时间：2009-05-01 00:35:24 查看次数：<span id="News_Hits"></span><iframe style="display:none;" src="hits.asp?type=news&id=106"></iframe>
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<td style="word-break: break-all; word-wrap:break-word;"><div class="gray14">开发平台<BR> 1.Visual Studio 2008 SP1 <BR> 2..NET Framework 3.5 SP1 <BR> 3.ASP.NET AJAX <BR> 4.IIS 7或者VS 集成Web服务器 [WCF 和 SVS 文件配置] <BR> 5.Windows Vista <BR><BR> <img onload="ImageZoom(this,560,700)" alt="" src="upfiles/edit/200905/200905010035530731.jpg" border=0><BR> <BR> <B> 介绍<BR></B> <BR> WCF (Windows Communication Foundation)中新增了很多特性来加强微软应用程序开发平台，尤其是在应用程序之间的<A title=通信 style="COLOR: #000000" href="http://tele.it168.com/" target=_blank>通信</A>上。在本篇文章中，我们讲了解到WCF是如何直接在客户端JavaScript中使用的场景。这是由ASP.NET AJAX提供的一项非常酷的特性。在本篇文章中，我们 不会对WCF的内部细节加以大量讨论，而是讲主要精力放在如何在JavaScript中直接使用服务。因此，我们在幕后不会对ASP.NET或者.NET运行时是如何管理这些功能的特性进行探讨。<BR> <BR> 为了演示文中涉及的理论与事实，我们讲创建一个带有两个工程的解决方案。因此，不浪费时间了，开始创建一个空白的解决方案并保存起来。现在，添加一个新的类库项目到解决方案中。命名该类库为ServiceLibrary。然后，添加一个Web应用程序工程到该解决方案中并命名为WEBUI。后面我们将看到有两种方式添加能够让JavaScript调用的WCF服务。
<P> 1.使用启用AJAX的WCF服务项模板<BR> 2.在类库中使用服务接口定义</P>
<P><B> 使用启用AJAX的WCF服务项模板</B><BR> <BR> 这里，我们将看到一种简单明了的方式在JavaScript中调用一个WCF服务。右键点击Web应用程序工程并选择添加新项。选择启用AJAX的WCF服务项模板，并命名为“HelloWorldService.svc” 最后点击确定。此时，向导会如愿添加一个HelloWorldService.svc文件到解决方案中。该文件也提供了代码分离页面。如果你在一个XML文件编辑器中打开了该文件，你将看到如下形式的标签： </P><PRE><OL class=dp-c><LI class=alt><SPAN><SPAN><%@ ServiceHost Language=</SPAN><SPAN class=string>"C#"</SPAN><SPAN> Debug=</SPAN><SPAN class=string>"true"</SPAN><SPAN> Service=</SPAN><SPAN class=string>"WebUI.HelloWorldService"</SPAN><SPAN> CodeBehind=</SPAN><SPAN class=string>"HelloWorldService.svc.cs"</SPAN><SPAN> %> </SPAN></SPAN></LI></OL></PRE>
<P> <img onload="ImageZoom(this,560,700)" alt="" src="upfiles/edit/200905/200905010035549475.jpg" border=0><BR> <BR> <div class="thisPageNav"><a href="article/106.html"><strong>第1页</strong></a> <a href="article/106_2.html">第2页</a> </div></div></td>
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