教育云平臺消息服務(wù)研究
[Abstract]:With the rapid development of Internet education, cloud education platform based on cloud computing technology has become the supporting service framework of online education. Educational cloud platform aggregates a variety of applications, including education, teaching, management, evaluation, social and other business, for education administrators, teachers, students, parents and other users. The communication between services needs a unified message service mechanism to ensure the fluency of use, and the communication between users needs to ensure the accessibility of messages and the convenience of communication through the mechanism of message service. But the message has many kinds of characteristics, such as fast update, distributed, etc., the real-time and reliability of the message service mechanism is facing a huge challenge. Message service based on the traditional "request-response" mode has some problems such as message delay and message loss, the real-time push of messages and the poor performance of reliable delivery, which have a great impact on the normal communication of users. Therefore, it is very important to realize the real-time and reliable message service in the educational cloud platform. The thesis focuses on the message service of educational cloud platform, and its main work includes three aspects. Firstly, the current situation and requirements of message service are analyzed. Based on the investigation results of the application of message service in 15 typical educational platforms at home and abroad, the technologies of real-time communication and message middleware are analyzed, and the user characteristics, business process and functional requirements of the platform are analyzed. The overall architecture and functional architecture of the platform are designed. Secondly, the technical scheme of message service and the key problem solving strategy are expounded. According to the platform requirement and design, two message service schemes, WebSocketr Database and WebSocketr RabbitMQ, are designed. By comparing the implementation mechanism and performance of the two schemes, the implementation route of RabbitMQ storage and distribution message transfer and push message is determined, and the working model of WebSocket/RabbitMQ message service is constructed, which solves the problem of message oriented sending and real time message push. Message reliable delivery, message personality settings four key issues. Finally, the information service is implemented in the education cloud platform of normal University. According to the technical scheme and model of WebSocket/RabbitMQ, the message service sending, receiving, answering and untying interface are designed, and the message service is realized by relying on the educational cloud platform of normal University. At present, the education cloud platform message service has been put into use, running well.
【學(xué)位授予單位】:華中師范大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:G434
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