【作者】 李雅红；

【导师】 黄有群；

【作者基本信息】 沈阳工业大学 ， 计算机应用技术， 2003， 硕士

【摘要】 目前，高校教学网络化已成为一种趋势。答疑作为教学中一个十分重要教学环节，与课堂上群体授课不同，答疑更多是教师和学生间一对一的交流。本文根据本校教学中答疑特点，针对任课教师自己所教的课程与所教任课班级学生进行答疑，设计并实现网上实时答疑系统，提出让教师和学生作为客户端，解决了教师和学生对等端直接连接通信问题，使教师和学生在网上实现面对面的直接交流与答疑，更加方便教师和学生。 本课题主要解决两方面的问题，一是学生和教师客户端之间直接连接通讯问题。在Internet网络中，必须通过IP地址来访问目的主机。教师和学生上网地点不定，上网连入方式不同，其IP地址是不固定的，采用混合型服务器程序设计方法，服务器端只起到握手连接作用，让客户端直接连接，教师和学生直接进行数据通讯，使学生和教师的数据处理无须通过服务器，降低服务器信息处理量，从而消除了数据传递的中间环节。二是答疑功能的实现。主要是学生与教师之间实时答疑和教师资源的共享。在直接连接的基础上实现一对一、一对多和答疑室答疑功能；以教师名为前提，学生根据答疑主题直接共享教师名下的教学资源，更好的为教学服务。 本文在实际教学背景下，分析和比较了现有的网上答疑系统和实时通讯工具；介绍了本系统的总体设计，包括系统的网络体系结构的设计和模块的划分；介绍了通讯连接设计与实现，答疑应用模块设计与实现，连接数据库设计与实现，服务器管理设计与实现。更多还原

【Abstract】 Network of education has already been a trend in university. Answer is an important tache of teaching. Differing from having class, answer pays more attention to one-to-one communication between teachers and students. In this paper, based on the answering character of our university, focused on the courses taught by the teacher, aimed at the answer between the teacher and her students, The Real-Time Answei ing System On Network was designed and implemented. It solved the problem of the peer-fe -peer connecting communication by making students and teachers as clients. Students and*teachers can communicate more directly on network. Answer is more direct and convenient.This task mostly solved two questions. One was the problem of the teacher and student’s communication as peers c irectly. In the Internet, the aim host is accessed by the IP address. The IP address is various because teachers and students go to the Internet in different places and different connection. Using ihe mixed architecture of the server programming, the clients immediately communicate as peers and the server is only connecting function. As clients, teachers and students can directly deal with data without server, the quantities of information or server were reduced and the middle tache during transferring data was avoided. Another is the implementation of the answering function. Answering system solved the real-time answer between teachers and students and the sharing of the teacher’s resources. In order to make teaching better, based on the peer connection, it completed the function of one-to-one, one-to-many and answering room. Students directly share resources of teachers according to their teachers’ names and answering subjects.This paper analyzed and compared the existing network answering system and the realtime communication tools on the background of the actual teaching. It introduced the overall design of this system, including the design of Network Architecture and the four modules, Italso introduced the design and implementation of communicating connection, answering application module, connecting database and server manage, etc.更多还原