Design And Realization Of Network Video Teaching System Based On J2EE

Network video teaching system combines multimedia technology and networktechnology a bit. Educated according to their ability to accept, professionalism andability to understand make full use of network resources for learning, making educationbreak the traditional mode of education time and space constraints, to achieve thestudent’s individualized education. Therefore, the network video teaching system athome and abroad has been a great deal of attention. But now the country has aprevalence of video teaching system, the delay is longer, audio and video data sync andother issues.To solve the current problems of China’s online video teaching in the system, weused J2EE technology, data, multi-cast, data flow synchronization, buffers and othertechnologies for network video teaching system research, and achieved the followingresults.First, based on J2EE technology, focusing on network video teaching systemfunctions in live video and video-on-demand capabilities were studied. Through livevideo feature, students could implement real-time interaction with teachers, the qualityof teaching could provide network; via video-on-demand feature that allowed studentsto access the network through the network regardless of learning teaching systemanywhere, which could increase the teaching activities plus flexible.Second, using multimedia data compression, and multi-casts multimedia data toimprove network transmission of multimedia data on the efficiency and reduce thenetwork in the amount of data transmitted, reducing the teacher and students clientcomputer client computer information transmission time can be improved the real-timevideo teaching system, and network video teaching system user experience.Finally, using buffering, synchronization control of multimedia data, audio dataand video data synchronization between the control, the client information, the audioinformation synchronized with the video playback to improve the Internet datatransmission delay resulting instability, jitter, and audio and video sync problems,effectively improve the network video teaching system user experience.Through the system functionality, performance testing, indicating that the studiedof video teaching system from a functional point of view, to meet the needs of teachers and students of the remote video teaching, it also has better performance, better able toget rid of online video teaching process and arising in the delay, jitter, based on J2EEtechnology research network video teaching system, it was achieved good results, withsome theoretical significance and practical application value.