Summary
With the continuous rapid development of information technology, information technology is also bringing earth-shaking changes to the current life. The arrival of the information age has become a trend, and the history of human development is entering a new era. Information technology has been popularized and applied in various fields of life. Before the development of information technology, class management has always been managed by paper version and manual. With the advent of information technology, the class management system designed and developed this time is developed using Java development language.
The class management system designed and developed this time finally realizes a class management system integrated with humanization, high efficiency and strong operability, and can finally realize student management, teacher management, course management, professional management, class management, department management and administrator Management and other functional modules. The class management system designed and developed this time realizes this communication through the system browser and Tomcat server, and can realize data interaction and modification at the front and back ends. The class management system designed and developed this time uses the most common MySQL database to store all the data of this system, uses the Java development language to develop, the front desk uses HTML and CSS technology to develop, and the system uses a lightweight server Tomcat , in the process of system design and development, after continuous adjustment and improvement of function points, a class management system that satisfies both teachers and students can be finally achieved
Keywords: Java language; MYSQL; class management system
Abstract
With the rapid development of information technology, information technology to the current life is also bringing earth-shaking changes. The arrival of the Information Age has become a trend, the history of human development is entering a new era. Information technology has been popularized and applied in every field of life. Before the development of information technology, class management has always been a paper version plus manual way to manage, with the advent of information technology, the design and development of the class management system using Java development language to develop.
The design and development of the class management system to achieve the ultimate humanization, high efficiency and strong operational integration of the class management system, finally, it can realize the function modules of student management, teacher management, course management, professional management, class management, department management and administrator management. The design and development of the class management system through the system browser and Tomcat server to achieve this communication, can achieve front-end and back-end data exchange and modification. This design and development of the class management system using the most common MySQL database to store all the data of the system, using Java development language to develop, the front using HTML and CSS technology to develop, the system uses the Lightweight Server Tomcat, in the design and development of the system process, through continuous adjustment and improvement function point, finally can achieve the satisfaction of teachers and students of the class management system.
Keywords : Java language ; MYSQL; Class management system
Contents
Contents Introduction 1.1 Research background and significance
1.2 Research status at home and abroad Analysis 2.2 Functional requirements analysis 2.3 Non-functional requirements analysis 3. System design 3.1 System overall design 3.2 System detailed design 3.2.1 Student user login terminal module design 3.3 Database logic design 3.4 Database table design 4.1 User module realization 4.1.1 Login module realization 4.1 .2 Realization of elective course module 4.1.3 Realization of student course module 4.1.4 Realization of class schedule query module 4.1.5 Realization of grade query module 4.2 Realization of teacher module 4.2.1 Realization of login module 4.2.2 Realization of teaching query module 4.2.3 Teacher schedule module Realize 4.2.4 achievement input module realize 4.3 administrator module realize 4.3.1 login module realize
4.3.2 Realization of department management module
4.3.3 Realization of professional management module
4.3.4 Realization of class management module
4.3.5 Realization of student management module
5. System test
5.1 Test purpose and significance
5.2 Test environment and use cases
5.3 Test results
Summary
References
Introduction
1.1 Research background and significance
The class management system designed and developed this time adopts an online management system to manage classes. Information technology is constantly innovating and developing. Before this class management system was developed, class management was done by the class teacher. Manage the paper version with the squad leader [1]. Nowadays, with the rapid development of information technology, the development of information technology can replace the previous manual management of classes, and the current class management system can help the class teacher to manage the class in a unified manner. The class management system designed and developed this time is the most typical information management system. The management system mainly includes two aspects: database creation and maintenance of the system, and front-end maintenance and development. For the class management system designed and developed this time, the consistency of the database and the integrity of the system are required, and the data security of the overall system is high [2].
The class management system designed and developed this time is a class management system designed and developed to provide teachers and students with the greatest convenience. The class management system can not only manage students and teachers, but also manage various departments, grades and Curriculum etc. management system 31]. The class management system can make the existing class management enter the processing age of information technology. The class management system can provide students with the greatest convenience to inquire about their own courses and grades and other information, which improves the overall efficiency of students. The management system can also update the latest information of students in a timely and effective manner, and provide reliable information to save to in the database. The background of the class management system designed and developed this time is the general trend of education informatization and the construction of information technology in education in my country. Its main significance is to use the school's existing computer hardware resources and network resources to realize the current situation of no paper management. , to avoid the problems of traditional manual [4]. Compared with the initial manual management mode, the online management system incorporates more development technologies, and puts forward higher technical requirements for the ways and methods to realize the security of the management system. It is of great significance to realize online management through the class management system designed and developed online [5].
1.2 Research status at home and abroad
1.2.1 Research status abroad
In foreign countries, colleges and universities in some developed countries have different management from domestic colleges and universities. Foreign developed countries have relatively large-scale teams and stable technology to provide service support for class management. However, information technology in some primary and secondary schools in China started relatively late [5]. In the process of applying some digital campus theories step by step, foreign schools have continuously developed information technology and continuously updated software and hardware systems and networks. On the other hand, they have also continuously developed and implemented various subjects. The integrated management system of grades and course management can finally form a large-scale information construction system. However, the overall domestic information technology is relatively backward, and the cost is tight, the theoretical system is not perfect, etc., the domestic class management system is in line with some foreign developed countries in terms of organization, system service and overall service. There is a long gap in the class management system of the school [6].
1.2.2 Domestic research status
In China, let’s take a look at the domestic research status. The domestic class management system still has certain flaws in terms of security and system updates, and each school has a separate class management system. shared with other schools. In a class management system with an administrator, the storage or deletion of information is controlled by the administrator. In fact, it is difficult to truly grasp the needs of students or teachers in this way, so there is no way to truly satisfy student users or Teacher user needs. Therefore, the class information management system should make full use of the campus network to further realize the unified management of class information, decentralized operation, and information sharing of the management system, etc., which can be the first paper-based management class to further realize class management. Paperless, information management, and intelligent management are integrated in a comprehensive direction to develop, and to lay a good foundation for the class management system that can further realize information management [7].
1.3 Introduction of related technologies
The class management system designed and developed this time is to design and develop a class management website in the webpage. For this overall development, it is necessary to master the technology of website development and the overall development process of the management system[8] . Because the website has been developed a long time ago, the class management system designed and developed this time chooses the object-oriented Java language. This development language is favored by more developers and is not suitable for the development of many small and medium website systems. Second choice. The Java development language is easy to understand, and it can be done well for beginners to learn or to develop website systems. Comparing the Java language with the C language and the C++ language, many novices can understand the Java language, and the language also has strong migration capabilities, which can be directly migrated from other development platforms and run directly; the Java language mainly It will introduce the introduction, objects, inheritance, etc., and then this Java class management is mainly designed and developed using the Java language. The system occupies a small amount of memory and can support multiple tasks running at the same time. The system developed with this language runs at a faster speed. Fast; according to different websites and program development, the method in the real-time class can be referenced to the library [9]. As of now, more developers will choose the Java language for development.
Before the development of this class management system, the environment needs to be set up on the developer’s computer in advance. First, you need to download and install JDK on the computer, and install it in a fool’s way. In this process, JRE will be installed at the same time and Java virtual machine, and then automatically configure the environment of Java_HOME and Path. After the environment is configured, the environment DOS will be automatically built, and then enter the Java startup command to verify whether the installed development environment is configured [10].
The class management system designed and developed this time needs to be installed on Tomcat, a lightweight server on the market. The security and response speed of the system are improved [11]. Before using the server, you need to set the parameters and paths of the server, and then you can deploy the function points on each page of the management system on the server.
Before installing the IDEA development platform on the computer this time, you first need to enter the editing homepage of IDEA, and edit the code required for this management system on the editing homepage, and then you can run and continuously improve and adjust. After the design of all functional pages of the front and back ends of the management system is completed, the database tables used in this management system need to be created. The database software selected this time is the well-known MySQL database. This database software needs to be installed in advance on the official website. After downloading and installing, you need to enter the command in DOS to start the MySQL database service [12]. First of all, it is necessary to establish a connection to the database so that the data in the system can interact normally, so as to ensure the normal operation of the class management system this time.
1.4 Main research content
When designing the class management system this time, after a large number of visits to many schools in the early stage and consultation with many students and teachers, we finally discussed and decided to design and develop this management system. The main tasks are as follows
: The first chapter mainly collects and sorts out the situation of the class management system in recent years, and clearly describes the advantages of this system, and also describes the development technology used in this management system. And combined with the actual situation of the current campus management to design the class management system needed this time.
The second chapter, the third chapter and the fourth chapter mainly analyze the feasibility of the class management system designed and developed this time, design and realize the main functional modules of the website, and finally realize all the function points of this website.
The fifth chapter is the last chapter of this article. In order to verify whether all the functions of the class management system developed this time meet the requirements, it is necessary to test the entire system. The test will be repeated and recorded according to the test principle.
