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LOGO 软件工程系赵月鹏软件工程系赵月鹏第九讲《 AJAX 》第九讲《 AJAX 》 Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 9.3 9.3 发送请求发送请求 9.1 AJAX 9.1 AJAX 简介简介 9.2 AJAX 9.2 AJAX 应用到的技术应用到的技术 9.4 9.4 接收请求接收请求 9.5 AJAX 9.5 AJAX 开发框架开发框架 9.6 AJAX 9.6 AJAX 相关知识相关知识 Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 9.1 AJAX 简介 9.1 AJAX 9.1 AJAX 简介简介 AJAX 术语 1、术语 Ajax 用来描述一组技术,它使浏览器可以为用户提供更为自然的浏览体验。 2、在 Ajax 之前, Web 站点强制用户进入提交/等待/重新显示范例, 用户的动作总是与服务器的“思考时间”同步。 3、 Ajax 提供与服务器异步通信的能力,从而使用户从请求/响应的循环中解脱出来。借助于 Ajax ,可以在用户单击按钮时,使用 JavaScript DHTML 立即更新 UI,并向服务器发出异步请求,以执行更新或查询数据库。当请求返回时,就可以使用 JavaScript 和 CSS 来相应地更新 UI,而不是刷新整个页面。 4、最重要的是,用户甚至不知道浏览器正在与服务器通信: Web 站点看起来是即时响应的。 Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 9.1 AJAX 简介 9.1 AJAX 9.1 AJAX 简介简介 AJAX 技术的产生 Ajax 被认为是(Asynchronous JavaScript and XML 的缩写)。现在,允许浏览器与服务器通信而无须刷新当前页面的技术都被叫做 Ajax. Ajax 在 Google 中广泛被应用,例如 Google Map 、 Google Suggest 和 Google Ads 。 Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 9.1 AJAX 简介 9.1 AJAX 9.1 AJAX 简介简介 Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 9.1 AJAX 简介 9.1 AJAX 9.1 AJAX 简介简介 Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 9.1 AJAX 简介 9.1 AJAX 9.1 AJAX 简介简介什么是 Ajax Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 9.1 AJAX 简介 9.1 AJAX 9.1 AJAX 简介简介什么是 Ajax Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 9.1 AJAX 简介 9.1 AJAX 9.1 AJAX 简介简介 Ajax 工作原理 Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created wi

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