Based On J2EE Online Examination System Design And Implementation

With the popularization of computer and Internet application, and computer remote education network construction and development,Network education has become one tendency of the modem education development. But test is an important constituent of education. Education'S network requests the test'S network inevitably. The computer test on networkhas catered to thetendency of present society's network. It will certainly become one essential test way. Under this background, we developed network examination system with a series of courses to test the undergraduate'S computer skills based on the J2EE structure, Easily realize's exam score, difficulty management and scientific, fast for examination paper analysis, raise test efficiency.This paper introduces the research of the background and significance, carefully analyzed the domestic and international network exam's actual situation, choose the J2EE technology as the overall structure of system, adopting customer layer, Web layer, business layer and data layer 4 layer structure to build online examination platform. Based on the group roll system time-consuming, low efficiency problem, to test system group question key research, through to the group question objective analysis, establishes the mathematical model of the group question. In the group question of mathematical modeling based on genetic algorithm combining with the principle and thinking, design and implement an based on genetic algorithm intelligent.This system from online examination system requirement of system, complete the main functional modules and database design, adopts B/S structure, beardless client, can be in room, multimedia network classroom organization formally exam; Also available in network (LAN or Intenet) of any computer on the exam. If put into practice, consequently, students can then mode easily used to test resources for learning and testing their own learning. System mainly realizes the management, intelligent, automatic marking and manual marking combination, examination result query and analysis, and other functions.