The Design Of Modern Distance Education System Based On J2EE

Along with the development of computer network technology and multi-media technology, long-range education has become effective means and the powerful power of the traditional educational pattern of reforming and opening up. It breaks through television education, and classroom educational, broadcasting education and the space-time restraint of traditional school educational way the educational system and one that forms diversification together person will only have a computer and access network Luo equipment, may carry out study and training at any time. With other compared with educational pattern, long-range education has space-time freedom and resource to share , system opens and is convenient for the advantages such as cooperation.This paper in on the foundation of studying fully for domestic and international long-range educational present situation, the teaching pattern in combination distribution type application technology and modern long-range education, on J2EE platform design and realization a long-range educational support system based on Internet. The system have distinguished quality of flexibility, compatibility, maneuverability. Because clients only need browser and operation is made very easy.When designing in, the method that system has adopted object oriented thought and UML carries out analysis , passes through establishment distinct analysis model comes more well understanding system, at the same time make problem region object make clear more, advantage is in systematic design with development.The link that is concerned with because of teaching management and teaching campaign many just correlation very complex, have business field many , coverage is broad , data bulk is big wait for characteristic, in the system of this paper discussion consider fully that these characteristics is divided for systematic function , role region limits of authority, data structure and optimization etc. have carried out detailed discussion; The basic technologies and tools needed by this system are introduced, and system outline design through overall analysis is finished. The detail design discusses some key technologies such as the second login, algorthm of generating paper and automatical evaluation for subjective questions.