基于AJAX的网页聊天系统 (毕业设计).docVIP

本科毕业设计（论文） 题 目 基于AJAX的网页聊天系统 系（院） 计算机科学与工程学院 年 级 网络工程 班 级 学生姓名 指导教师 论文提交日期 基于AJAX技术的聊天室的设计与开发 The design and development of the chat room based on AJAX technology Abstract：Chat room is a gathered community members, it’s the ideal place to hold the network meeting. Before the immediately messaging software, most Internet users chatted by the chat room of the web together. Create a chat room, it can help improve your views. It can make the net friends closer, also by the customer service and the communication. It can make them more conveniently and quickly. The development of general chat room, there are two ways. one is to take the chat information stored in the database. And another way is to take a static data storage. This chat room system will use the method of chat information stored in database, and use the AJAX to realize the page refresh without effect. AJAX is asynchronous JavaScript and XML technology, it is a kind of create interactive web of application development technology. Add AJAX make up the fault between the browser and server, it can content all the needs of Web applications. Through the AJAX can use the XMLHttpRequest object to communicate with the server directly. Through this object, JavaScript can exchange data with the Web server page in not overloaded. The web chat rooms such as sina show, baidu hi, WebQQ are the powerful web chat tools in ordinary. They are chat rooms. Get into the website is to look for common interests friends of the chatting. The functions of chat room make the instant communication technology integration to a web site. Make the visitors visit the website and have an instant chat at the same time. Improve the user experience and site active degrees auxiliary. For example xtalk. Keywords: chat room; date base;AJAX; 目录 1．绪论 1 1.1研究开发背景 1 1.2国内外现状 1 1.3论