Summary
With the development of society, the advantages and popularization of computers make the development of car rental system necessary. The car rental system mainly uses computers to manage information such as car rental information. It reduces the work of administrators, and at the same time, it is convenient for users to inquire and manage the car rental information they need in time.
In the development process of the car rental system, B/S architecture is adopted, and Java technology is mainly used for development, combined with the latest popular springboot framework. Use Mysql database and Eclipse development environment. The car rental system includes users and administrators. Its main functions include administrators: home page, personal center, user management, vehicle brand management, vehicle information management, vehicle color management, rental order list management, car return record management, administrator management, my collection management, system management, user : Home page, personal center, vehicle information management, rental order list management, car return record management, front home page; home page, vehicle information, system announcement, personal center, background management and other functions.
This paper introduces the development background of the car rental system in detail, and introduces the system development technology, then analyzes the system requirements, and explains the business process, system structure and data of the car rental system in detail. Users can search for the information they want according to the keywords.
Keywords : car rental system, Mysql database, Java technology springboot framework
Abstract
With the development of society, the advantages and popularity of computer make the development of car rental system become necessary. Car rental system is mainly with the help of computer, through the management of car rental information and other information. Reduce the administrator's work, but also convenient for the majority of users to personal car rental information timely query and management.
In the development process of car rental system, B / S architecture is adopted, mainly using Java technology, combined with the latest popular spring boot framework. Using MySQL database and eclipse development environment. The car rental system includes users and administrators. Its main functions include administrator: home page, personal center, user management, vehicle brand management, vehicle information management, vehicle color management, lease order list management, return record management, administrator management, my collection management, system management, user: home page, personal center, vehicle information management, lease order list management, return record management, front desk first Page; home page, vehicle information, system announcement, personal center, background management and other functions.
In this paper, the development background of car rental system is introduced in detail, and the system development technology is introduced, and then the requirements of the system are analyzed, and the business process, system structure and data of car rental system are described in detail. Users can search the information they want according to the keywords.
Key words: car rental system, MySQL database, Java technology, springboot framework
Table of contents
Chapter 2 Development Technology Introduction 2
2.1 System development platform 2
2.2 Platform development related technologies 3
3.1.3 Operational Feasibility 8
3.2 System Performance Analysis 9
3.3 System function requirements analysis 1 0
4.1 Functional structure diagram of the system 1 1
4.2 Database conceptual structure design 1 2
4.2.2 Database logical structure design 1 3
Chapter 5 Realization of System Functions 14
5.1 Administrator function module 16
5.3 Front page function module 17
6.1 Test content and results 20
References 2 5
Chapter 1 Overview
1.1 Research Background
In recent years, with the continuous development of network technology, more and more people like to find all kinds of information they need on the network. The car rental system is very helpful to both users and administrators. The car rental system realizes a good operation platform between users and administrators by cooperating with the database management software. Based on this, a car rental system is designed .
After analyzing the above situation, we have carried out a detailed analysis of the actual needs of users, and specified the corresponding development plan. In order to facilitate users to view various information of the car rental system online, and to help administrators save a lot of management Time and can reduce the workload, making the management work more quickly and smoothly, so the system was developed and designed.
With the continuous development of the computer, it has been integrated into every field of our life and work, bringing a lot of convenience to our life and work. Therefore, it is hoped that the development of this system can also enable the information management of the car rental system , reduce the burden on people and improve work efficiency.
1.2 Research Status
Compared with other countries, my country's software industry is relatively backward, and it started relatively late in informatization construction. However, with the continuous development of my country's economy and the continuous improvement of network technology, my country is also constantly exploring the software industry. Some results have also been obtained. my country's software industry has developed rapidly, and more and more software systems have appeared in people's sights, which have gradually changed the way people live and work. However, for the construction of informatization, compared with many developed countries, due to the backwardness of informatization and the lack of funds, the development of car rental systems in my country is still relatively backward. Therefore, we must continue to work hard to explore and strive to develop a A practical car rental system to realize the informatization of the car rental system. Therefore, this topic takes car rental as an example, the purpose is to develop a practical car rental system.
The development of the car rental system uses java technology, and the support of MYSQL database, springboot framework and other technologies to jointly complete the development of the website system, so that users can have a very good platform experience, and administrators can also use this system to conduct more convenient management operations to achieve the previously specified plan.
1.3 Research content
Through the analysis of the needs of administrators and users, we gradually added the functions of the car rental system, and then carried out functional analysis and testing, and conducted in-depth research on these two aspects. The car rental system mainly focuses on the development background, Market demand, database analysis, function modules and development technology are introduced and analyzed emphatically. Finally, test and analyze the functional information in the system. The car rental system realized by this graduation, whether it is feasibility analysis, overall system framework design or coding, needs to strictly abide by the three cycles and eight stages of software development. During the development process of the system, it is necessary to ensure that the system has a good Timeliness, ease of installation and stability. When writing code, you must follow the requirements to make the code look more beautiful. Developing a user-friendly car rental system is the main goal of this development. After the system is completed, the computer is used to install the system, and the user can check the vehicle information, rental order list, return record and other information through the computer at any time. In the development of the car rental system this time, basic analysis such as feasibility analysis and system requirements analysis should be carried out on the system, and the deployment and testing of the system should be completed. After these functions are realized, the operating system will be operated through the computer. In system planning and analysis, the following technical route needs to be followed.
Chapter 2 Introduction to Development Technology
The B/S structure, Java technology and mysql database are the main development technologies of the car rental system, and then the overall design of the system, database design, function module design, system page design and system program design have been studied and planned in detail .
2.1 System development platform
In this car rental system, Eclipse technology can bring great convenience to users. Its main feature is that it can make users learn conveniently and quickly. On the other hand, the storage capacity of information is also very large. This function is mainly used as a database Query and program in. And the data application of this function is relatively flexible. Through our current development, we can know that only a small part of code can be used to achieve very powerful functions. Therefore, the database development of this system is mainly managed by Eclipse technology.
2.2 Platform development related technologies
2.1 B/S structure
The B/S mode is also the browser/server mode. Its interface part is displayed on the browser side, and the main work is realized by the server side. The user's request is submitted by the browser side to the server side for processing, and the server side Feedback the processing results to the browser, and draw them on the browser interface for users to view. Adopting the B/S mode can not only avoid the limitation that users must install the Bijie education poverty alleviation website software to develop the system or access the system, but also is more convenient [12].
2.2 java technology
Java is a cross-platform webpage technology that ultimately realizes the dynamic effect of webpages. Similar to JSP technology, it mixes some program-related codes in HTML and uses language engines to execute codes. Java can realize the interaction with administrators. Convenient for administrators to use.
Java technology has many advantages. It can ignore the platform used. It can be used everywhere with only one writing. It also has good security and multi-platform support. It can be developed in any environment on any platform. Perform system deployment and environment expansion. It also has the support of its own powerful development tools, and can be obtained for free through many channels, which also prepares the conditions for the spread of java technology [5] [6].
2.3 Spring Boot Framework
Spring Boot is a new framework from the Pivotal team aimed at simplifying the initial setup and development of new Spring applications. The framework uses a specific configuration approach, eliminating the need for developers to define boilerplate configurations. In this way, Spring Boot aims to be a leader in the burgeoning field of rapid application development.
Spring Boot features:
1. Create a separate Spring application;
2. Embedded Tomcat, no need to deploy WAR files;
3. Simplify Maven configuration;
4. Automatically configure Spring;
5. Provide production-ready features, such as indicators, health checks and external configuration;
6. Absolutely no code generation and XML configuration requirements;
installation steps:
At its most basic, Spring Boot is a collection of libraries that can be used by any project's build system. For simplicity, the framework also provides a command line interface that can be used to run and test Boot applications. Published versions of the framework, including the integrated CLI (command line interface), can be downloaded and installed manually from the Spring repository. An easier way is to use the Groovy enVironment Manager (GVM), which handles Boot version installation and management. Boot and its CLI can be installed from the GVM command line GVM install springboot. The Homebrew package manager can be used when installing Boot on OS X. To complete the installation, first switch to the pivotal repository using brew tap pivotal/tap and then execute the brew install springboot command.
2.4 MySQL database
MySQL is currently one of the traditional relational databases widely used by small and medium-sized enterprises for software system development. Especially in recent years, under the management of Oracle Corporation, the performance of MySQL database has been greatly improved, and the supported functions are also more abundant. As one of the earliest open source relational databases, MySQL was originally developed and maintained by the Swedish database company MySQLAB, and is now managed by Oracle Corporation. As the most popular open source relational database, MySQL is the database of choice for web application developers when developing web applications. Although the MySQL database is a development database product, under the joint maintenance of GF MySQL users, the performance of MySQL itself is not bad. As a traditional relational database, MySQL is not much different from other traditional relational databases. In MySQL database, data is stored in different database tables according to the definition of database users, and users can store them in different databases. Different data tables, which are very different from the current emerging non-relational database data storage methods. The sub-table and sub-database storage method of data in the MySQL database can avoid the performance loss of the data synchronization code to the greatest extent, greatly improving the access speed of the database, and at the same time maintaining great flexibility. Therefore, most of the current small and medium-sized software systems use the MySQL database for system data storage.
Chapter Three System Analysis
Through the analysis of the system function modules, it can be known that it is mainly to make corresponding units for the combination, decomposition and replacement of project elements, and then plan a principle through the system modules. The design of the system is first developed and designed around user needs, mainly In order to better manage information and serve users, the second is to design around the car rental system. The final design must meet the needs of users, so that the maximum significance and value of the system can be realized, and must be Avoid duplication of codes.
3.1 Feasibility Analysis
Feasibility analysis is an indispensable part of every development project. Feasibility analysis can directly affect the survival of a system, analyze the significance of development, and whether the developed system can make up for the shortcomings of traditional manual statistical models , whether it can better solve the problems existing in the car rental system, etc., through the development and design of the car rental system, not only can the workload of the staff be gradually reduced, but also efficient work and management can be carried out. Therefore, the development of the system has achieved the greatest significance and value. After the completion of the system, whether the benefit is greater than the cost and whether the expected effect can be achieved, these aspects must be analyzed in feasibility. After the analysis, it can be decided whether to develop this system. system. In the development and design of the car rental system, the feasibility analysis is carried out on the following points: Technical feasibility: through the adoption of Java technology, because the technology is constantly maturing, it is feasible to use this technology to design a car rental system. Economic feasibility: During the development process, whether the benefits of the completed system outweigh the development costs. Operational feasibility: In the development and design of the car rental system, it is convenient for users to operate and practical.
3.1.1 Technical Feasibility
Due to the continuous maturity of Java technology, it is very important in this car rental system. The development of this system is mainly based on the development and design of the server using Java, B/S structure and mysql database. Through the use of these technologies, the integrity and simplicity of the system are guaranteed. And ensure the security and stability of data in the database. During school time, we learned and communicated with Java language technology and mysql database technology, and also had a simple understanding of software testing, and then we could make a simple system development, inspection and identification based on these management methods. Through the cooperation of Java technology and Mysql database, an efficient and stable car rental system is developed.
(1) Lightweight system, flexible use: the car rental system, when designing, takes into account the habits of different users, making the system relatively lightweight, easy to install, and completes all the functions of the system. Based on the above , Through system testing and optimization, the operation is more flexible.
(2) Zero cost for system development: The car rental system is based on the open-source Windows 7 operating system, coded and developed using Java technology, and uses MySQL lightweight database, so there is no extra development cost.
(3) Coverage: Any city can install and use the car rental system designed this time. There are no strict regulations on the users of the system, and the platform can be used after it is built.
3.1.2 Economic feasibility
Determine the survival of a system through economic benefits and social value, whether to help administrators reduce work by developing a car rental system, whether it can be convenient for users to use, if the developed software can not achieve cost saving and resource saving, and must If a lot of time, money and energy are invested, then the development and design of this system is meaningless and worthless, and it does not have the conditions for development and design.
3.1.3 Operational Feasibility
The login interface of the car rental system developed this time is created by our most common login window, which can be accessed only through a computer without those complicated login procedures. The car rental system is mainly developed and designed using B/S structure, Java language technology and mysql database, which makes the development of the system more efficient and stable, and also reflects the modernization and standardization of the system. Users can easily learn, and the main features of the system are easy operation and management.
3.2 System performance analysis
1. System functional integrity: According to each functional module of the system, the original algorithm and code can be designed, and user information is mainly introduced in the form of text and tables.
2. System operation analysis: each function in the system must have a relationship between corresponding code and written data. The physical data of the system is mainly analyzed and displayed through demand analysis and feasibility analysis.
3. Interface design: The software in the system is processed and analyzed by different codes, and the easy-to-operate performance of the system interface is guaranteed.
4. Security analysis: Different roles have different information, so when we log in to the system, we must use our own account and password to log in, and we cannot operate at will, so as to ensure the security of the system.
3.3 Analysis of System Functional Requirements
Task requirements analysis is an essential part of every system development and design. The quality of the system can directly affect the survival of the system. Therefore, we must do a good job of task requirements analysis. The design of the car rental system is especially important in the initial analysis. Importantly, system design can be carried out more smoothly through task analysis, and user satisfaction can be guaranteed.
(1) User functional requirements
Users can view the home page, personal center, vehicle information management, rental order list management, car return record management and other operations after entering the system. The user use case diagram is shown in Figure 3-1.
Figure 3-1 User use case diagram
(2) Administrator functional requirements
After the administrator logs in, the main functional modules include home page, personal center, user management, vehicle brand management, vehicle information management, vehicle color management, rental order list management, car return record management, administrator management, my collection management, system management and other functions. The administrator use case diagram is shown in Figure 3-2.
Figure 3-2 Administrator use case diagram
Chapter 4 System Design
4.1 Functional Structure Diagram of the System
After system requirements analysis, the functional structure diagram of the car rental system is shown in Figure 4-1:
Figure 4-1 System function structure diagram
4.2 Database conceptual structure design
4.2.1 Database ER Diagram
The conceptual design is mainly to establish the logical structure of the database through the conceptual structure and mode of the database, and then use the DBMS of the database to complete it. It does not need the support of the computer system. Looking at the system as a whole, it mainly manages, organizes, and updates the database. The function of the database is very powerful. The development of each system must be inseparable from the database. The quality and efficiency of the entire system can be seen through the database. According to the above system analysis, plan the main entities in the system. The following is an entity relationship diagram for several key entities:
(1) The ER diagram of the user management entity is shown in Figure 4-2:
Figure 4-2 User management entity attribute diagram
(2) The ER diagram of the vehicle information management entity is shown in Figure 4-3:
Figure 4-3 Vehicle information management entity attribute diagram
(3) The ER diagram of the car return record management entity is shown in Figure 4-4:
Figure 4-4 Return record management entity diagram
4.2.2 Database logical structure design
The main function of the database is to store relevant information and store data through certain calculations. The data storage of the database is well organized. And the data in it has certain independence and security. Through the requirements of system function design and the planning of function modules, the design and implementation of the car rental system have been designed into multiple data tables. The following information is to introduce the design structure and function of the database table to establish the database table:
表4-1：allusers表
表4-2：cheliangxinxi表
表4-3：haichejilu表
表4-4：yonghu表
表4-5：zulindingdanliebiao表
第五章系统功能实现
5.1管理员功能模块
管理员登录，通过填写用户名、密码、角色进行登录，如图5-1所示。
图5-1管理员登录界面图
管理员登录进入汽车租赁系统可以查看首页、个人中心、用户管理、车辆品牌管理、车辆信息管理、车辆颜色管理、租赁订单列表管理、还车记录管理、管理员管理、我的收藏管理、系统管理等信息，如图5-2所示。
图5-2管理员功能界面图
用户管理，在用户管理列表可以查看账号、姓名、性别、年龄、手机、邮箱、照片等内容，还可以根据需要修改或删除等操作，如图5-3所示。
图5-3用户管理界面图
车辆品牌管理，在车辆品牌管理列表可以查看品牌等信息，并可根据需要进行修改或删除等操作，如图5-4所示。
图5-4车辆品牌管理界面图
车辆颜色管理，在车辆颜色管理可以查看颜色等信息，并可根据需要进行修改或删除等操作，如图5-5所示。
图5-5车辆颜色管理界面图
车辆信息管理，在车辆信息管理可以查看车辆名称、车牌号码、车辆品牌、车辆类型、车辆照片、车辆颜色、换挡方式、车辆天窗、车座、租赁价格、车辆详情等内容，并且根据需要进行修改或删除等操作，如图5-6所示。
图5-6车辆信息管理界面图
租赁订单列表管理，在租赁订单列表管理可以查看账号、姓名、手机、车辆名称、车牌号码、车辆品牌、车辆类型、换挡方式、租赁价格、租赁天数、提车日期、实付金额、是否支付、审核回复、审核状态、审核等内容，并且根据需要进行修改或删除等操作，如图5-7所示。
图5-7租赁订单列表管理界面图
还车记录管理，在还车记录管理可以查看账号、姓名、手机、车辆名称、车牌号码、车辆品牌、车辆类型、换挡方式、租赁价格、还车日期、租赁天数、审核回复、审核状态、核等内容，并且根据需要进行修改或删除等操作，如图5-8所示。
图5-8还车记录管理界面图
5.2用户功能模块
用户登录进入汽车租赁系统可以查看首页、个人中心、车辆信息管理、租赁订单列表管理、还车记录管理等内容，如图5-9所示。
图5-9用户功能界面图
还车记录管理，在还车记录管理列表中通过查看账号、姓名、手机、车辆名称、车牌号码、车辆品牌、车辆类型、换挡方式、租赁价格、还车日期、租赁天数、审核回复、审核状态等信息并详情、删除，如图5-10所示。
图5-10还车记录管理界面图
5.3前台首页功能模块
汽车租赁系统，在汽车租赁系统可以查看首页、车辆信息、系统公告、个人中心、后台管理等内容，如图5-11所示。
图5-11前台首页界面图
用户登录、用户注册，通过注册获取账号、密码、姓名、性别、年龄、手机、邮箱等信息进行注册、登录，如图5-12所示。
图5-12用户登录、用户注册界面图
车辆信息，在车辆信息页面可以查看车辆名称、车牌号码、车辆品牌、车辆类型、车辆照片、车辆颜色、换挡方式、车辆天窗、车座、租赁价格、车辆详情等信息进行购买、点我收藏，如图5-13所示。
图5-13车辆信息界面图
个人中心，在个人中心页面可以查看账号、密码、姓名、性别、年龄、手机、邮箱等进行更新信息、退出登录如图5-14所示。
图5-14个人中心界面图
第六章系统测试
通过一系列的测试，找出其中的错误。并且将测试作为软件开发的重要部分，在有了程序编程以后，测试就成为了系统中必不可少的一部分。通过统计分析，系统的软件测试占据了整个系统开发45%的工作量，从软件开发的成本中，测试成本已经包含了很多的测试工作。在测试中，每个程序都有可能出现错误。在该程序开发的过程中当中，利用人工方式去查找错误是比较繁琐和困难的，所以有必要找一些测试工具进行测试和分析。在系统整个程序的设计当中，出现一些错误的信息是时常发生的。对于这些指令当中语法是错误的，同时程序执行过程当中会提示，这样就方便找出错误。但是另一种类型的错误是由计算出来的，但是这些错误也是隐藏的，有时候它是不会发生的，所以解决这些错误是十分费时的。在进行系统运行的时候我们要对前期工作进行一个系统测试工作，通过测试来发现系统当中所存在的错误。当我们在测试过程当中要提早发现错误，并且发现错误以后要及时去改正，这样就能保证系统的长期运行。逐渐系统测试也就成为了一个系统设计必不可缺少的一部分。测试软件的时候要尽可能的去提高软件的鲁棒性。
6.1 测试内容与结果
黑盒测试技术它主要把测试的数据进行划分成多个信息的数据进行程序测试，然后在根据不用区域的要求来进行输入测试信息，这样就有效的提高了测试效果，还可以减少测试次数，以下我们就用信息进行测试数据。
1、车辆信息管理测试点
测试点：车辆信息管理
测试目标：验证输入的信息是可用。
测试环境：Windows10操作系统和IE11浏览器。
输入数据：名称、介绍、图片等内容。
步骤：
(1)打开浏览器，进入车辆信息管理。
(2)点击页面左方的添加按钮，出现添加页面，输入必要信息进行添加。
(3) 主要进行车辆信息管理的输入，输入情况见表6.1。
表6.1车辆信息管理测试用例表
用例编号 |
UC-TEST-001 |
测试名称 |
车辆信息管理 |
|
前提条件 |
车辆信息管理 |
|||
步骤 |
操作描述 |
数据 |
期望结果 |
|
1 |
点击车辆信息管理查看详情按钮 |
无 |
跳转到车辆信息管理详情 |
|
2 |
点击添加按钮 |
无 |
跳转到添加页面 |
|
3 |
选中添加后按钮 |
无 |
跳转到车辆信息管理页面 |
|
测试说明 |
用户未登录时到步骤3跳转到登录页面 |
|||
测试结果 |
成功 |
测试人 |
|
|
2、登录测试点
测试点：登录
测试的目标：输入账号密码以及验证码后系统会自动进行验证是否正确。
所用的环境：Windows10和IE浏览器。
输入信息：用户名、密码。
步骤：
（1）首先我们打来浏览器，进入该系统的登录界面。
（2）在进入页面登录部分以后可以进行对用户名、密码、验证码进行测试，具体测试输入情况如下表6.2所示。
表6.2 登录测试
情况 |
用户名输入 |
密码输入 |
期望结果 |
(1) |
15546219225 |
1244566 |
提示“用户名或者密码错误，或账号未经审核” |
(2) |
aaaaa |
123456 |
提示“用户名或密码错误，或者账号未经审核” |
(3) |
15546219225 |
hangguowei |
登陆成功 |
6.2 测试结论
结束语
在本次毕业设计的过程中，从开始的懵懂无知，感觉设计一个系统非常困难，不知道该从何做起，但是通过查阅相关资料和网站之后，让我对该系统的开发有了新的认知，开发系统最重要的就是需求调查和系统分析，也通过老师指导和学过相关的知识，在加上我的不懈努力，最后将该系统逐步完成。在此次毕业设计中，让我知道了做什么事都必须要坚持，努力去查阅资料，并且善于发现和研究，充分利用身边资源，我相信办法总比困难多，所有问题都会迎刃而解。通过此次汽车租赁系统的开发设计，将我在大学期间所学的知识都应用到了其中。使理论知识和现实实践进行相结合，开发汽车租赁系统将理论知识和实践相结合，也将计算机信息与实践问题进行了相结合，通过现代计算机网络的便利来解决生活中的问题，并且还提高了我的计算机编程能力，在这次的开发设计过程中，虽然我遇到了很多的问题和困难，但是通过老师和同学们的帮助下，所有的问题都迎刃而解了，让我顺利的完成了此次的毕业论文设计，通过此次毕业设计的开发与设计，大大的提高了我的动手动脑能力，并且为我以后的工作奠定了坚实的基础。
通过本次设计，让我学到了更多的知识，而且在设计中会有一些问题出现，最后通过查阅资料和在老师和同学的帮助下完成了系统的设计和开发，使得这次系统的开发非常的有意义。同时通过这次系统的设计也让我明白了自己在哪方面有不足，以后加以学习争取可以开发住更多有用的适用的系统软件。
致 谢
此次毕业设计的结束，也代表着我的大学生活即将结束，这次毕业设计的过程中，我非常感谢我的老师和同学们对我的帮助，让我完成了这次的毕业设计，首先我要感谢我的指导老师，当我遇到困难时，老师在第一时间为我指导，为我解决了很多困难，在这里，感谢您对我耐心的指导，我还要感谢我的每一位老师，感谢你们把知识传授于我们，让我们学会了做人做事的道理。
其次，我要感谢我的同学们，在遇到困难时，我们一起努力征服困难，所以我要真诚的感谢我的同学们。
最后，我要感谢各位答辩老师，感谢你们在百忙之中抽出时间为我的论文进行点评。
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