ABSTRACTThe main form of examination at the moment is examination paper examination, but such examinations often have many drawbacks, such as the need for examination examination papers, the need for candidates to travel back and forth, and so on. With the development of the times, an online examination system using Internet technology and computer technology emerged. The online examination system moves examinations from offline to online, which not only reduces the use of paper, protects the environment, but also facilitates candidates. Candidates are freed from running back and forth, but they can also focus on examinations from different regions at the same time, which greatly increases the efficiency. As a result, the demand for online examinations has increased in recent years..The online test system designed in this paper is based on the Java language, unified JS development language, HTML and jQuery, and adopts B/S development style, Tomact server, loading serial number. Take data storage and MySQL database. Through the above satisfactory research, I realized the Java technology based online testing system. The on-line examination system designed in this thesis provides great convenience for teachers and students. The teacher can easily issue questions, exams, read test papers, scores, manage student information, manage student achievement, etc. in the system. Teachers can easily add their own information, take tests, and check scores in this system. The system designed in this paper is simple and convenient to use..KEY WORDS:Online assessmentsystem , B/S mode,MVC, JS摘要当前主要的考试形式是试卷考试，但是这种考试往往有很多弊端，比如需要考场试卷，需要考生往返奔波等等。随着时代的发展，应用互联网技术和计算机技术的在线考试系...
