学生考勤管理系统的设计和实现外文翻译

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1、中文 2930字 Design and Implementation of the Management System for Students Attendance As for the development of information technology and economic, computer and networking applications become increasingly common. With the school informational construction inputs are constantly increasing, the constru

2、ction of campus network accesses to space development. Networks have gradually infiltrated into the school management, teaching and other areas.For example: A comprehensive education system which utilizes information technology of the network to carry on college course to educate, it offers from the

3、 network classroom, essential study links discussing, answering questions, and processing homework to examination to teachers and students. The Manager System for Students Attendance is a system which can help exchange information between the school and students. As we know,In the high schools, stud

4、ents job of check on work attendance not only workload is very large,but also time is very strong.In the past many high schools carry through managing by signing in and reporting forms, efficiency and diaphaneity are not good,and easy make a mistake,too.Along with development of database technology

5、and progress of corporation information s building,using computer to manage check on work attendance of corporations which it is necessary.It saves a mass of manpower and material resources and greatly lightens workload of employees.The system is an information system designed for asking for leave o

6、n line for students and managing attendance of undergraduate.It is generally divided into three main modules: the module for asking for on-line leave , the module for managing attendance of undergraduate and the module for backstage management. There are different customers in the university operati

7、ng the system,such as student, teacher, a teacher in charge of a class,department leader, school leader, administrator.Administrators have the highest authority. Teachers have an audit and inquiry authority. Students only provide with competence. The system is based on Browser/Server (browser/server

8、) structure and developed by JSP language and MySQL database. It also uses TOMCAT as a server. The system is written by the language: HTML and JAVA. The key techniques used in the process of development are: the page modularization, dynamic generating and static page showing of information, etc. And

9、 the thesis focuses on the introduction of the system s attendance management and the management of asking for leave online.And it develops the function of student, teacher, a teacher in charge of a class,department leader, school leader on the whole. It included the whole design of system , logic f

10、rame , data flow ,partition of every function module ,design of system function modules and concrete realization and so on . Constructing the attendancesystem based on MVC is the typical case that uses JSP - Action-JAVABAN to develop the website, it involves to the MVC design pattern, as well as the

11、 backstage database, the tied operation between the fundamental table and the system downstage, this system through the JDBC gain database actuation to tie up the fundamental table in the database and the downstage system. To construct the system in the process, I use MYECLIPSE to make the software

12、development kit of my system back stage， uses DREAMWEAVER to make the software development kit of my downstage homepage . Implementation of a system is bound to apply to different resources, and technology. So, lets discuss this appraisal system under the use of technology in the application of conc

13、epts and resources: MVC and User Interfaces MVC was first popularized with Smalltalk and is now used in many modern user interface frameworks. One of the primary benefits of MVC is that it provides reusable components for interactive user interfaces. Swing does this admirably for rich Java clients,

14、while Struts does so to a lesser extent on the Web. Even though the introduction of Tiles to Struts provides more reuse, the components are still more page-centric as opposed to Swings more fine-grained widget-centric approach. Like Struts, JSF is targeted at Java Web applications, but moves closer

15、to Swing with its concentration on reusable user interface widgets (or components). MVC Pattern We begin by describing the traditional form of MVC and then discuss how it has been adapted for the Web. Each of the three frameworks is then examined, and their respective implementations of this common

16、pattern are uncovered. The intent of this pattern is to partition interactive applications into three separate components: Model, View, and Controller. The Model represents core application data and functional logic, the View renders the data and displays it to users of the application, and the Cont

17、roller handles user interaction or input. All three components communicate via a change-propagation mechanism to stay synchronized. SQL Databases SQL database is a type of database technology that is the most widely used in todays computing environment. Here the data is stored in a very structured f

18、ormat that provides high levels of functionality. SQL databases are generally more robust, secure and have better performance than other older database technologies. It provides for SQL access to the data. So it is important to understand the term SQL before we proceed further. SQL SQL is used to cr

19、eate, maintain & query relational databases and uses regular English words for many of its commands, which makes it easy to use. It is often embedded within other programming languages. A fundamental difference between SQL and standard programming languages is that SQL is declarative. You specify wh

20、at kind of data you want from the database； the RDBMS is responsible for figuring out how to retrieve it. JSP Put succinctly, JAVA Server Pages is a technology for developing web pages that include dynamic content. Unlike a plain HTML page, which contains static content that always remains the same,

21、 a JSP page can change its content based on any number of variable items, including the identity of the user, the users browser type, information provided by the user, and selections made by the user. A JSP page contains standard markup language elements, such as HTML tags, just like a regular web p

22、age. However, a JSP page also contains special JSP elements that allow the server to insert dynamic content in the page. JSP elements can be used for a variety of purposes, such as retrieving information from a database or registering user preferences. When a user asks for a JSP page, the server exe

23、cutes the JSP elements, merges the results with the static parts of the page, and sends the dynamically composed page back to the browser. S2SH DAO layer is responsible for interaction with persistent objects. This layer encapsulates the data, add, delete, check, change operation. A typical J2EE thr

24、ee-tier structure, divided into the presentation layer, middle layer (business logic) and data services layer. Three-tier system, the business rules, data access and verify the legitimacy of such work on the intermediate layer processing. Clients do not directly interact with the database, but by the middle tier components and establish connections, then the middle tier and database interaction.