The Design And Implementation Of High School Chemistry Virtual Experiment System Based On Flex

With the continuous development of the Internet and Web technology, online education as a new teaching model has been more and more widely used, but as an important part of the teaching------ experimental teaching has still not got a good performance in online education, virtual experiments system is the best choice to solve the network experimental teaching.The construction of virtual experiments system has a very important practical significance. It is an urgent demand for training high quality person currently, it is an important means of modern education, it is an important way to achieve sharing and optimal allocation of teaching resources. With modern communications and information processing technology, online virtual experiment can effectively address the various existing educational resources; optimize the allocation of resources, to achieve the broad sharing of educational resources.Rich Internet applications (referred to as RIA) which of highly interactive and rich user experience features make web application development booming, has been widely praised. Well to know, Flex presentation layer technology which is introduced by Adobe is particularly prominent, Flex is a complete set of integrated technology solutions for RIA, its brilliant dynamic pages and Flexible interactive ,make it get a growing number of the user's favorite.Based on analyzing the home and aboard status of virtual experiment research and comparing the development of several virtual reality technology, I has proposed a new set of building virtual experiment system by the combination of Flex and J2EE technologies, then I design a common online virtual experiment platform which can provide interactive experiment. In my paper, after having determined the system's general goals and design principles, I have analyzed and designed the virtual experiment system, described system architecture, business process, function modules and database in detail. And at the last, the development of this system is carried out and the system's functions have been achieved.When the virtual experiment system is completed, students can visit the Web site into the virtual experiment system; operate the virtual instruments to do various experiments. The system provides a simply and easy-to-use virtual lab environment which closely following the development of Internet technology for students and teachers. The system can meet the requirements of teaching and distance education, and provide richer user experience and interactive sense at the same time.