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基于Struts2的图书管理系统源代码

上传者： achenxuxu | 上传时间： 2019-12-21 19:22:56 | 文件大小： 13.98MB | 文件类型： zip
一．功能简介 1. 实现一个图书管理系统。图书信息存放到一个数据库中。图书包含信息：图书号、图书名、作者、价格、备注字段。 2. 系统实现如下的基本管理功能： （1）用户分为两类：系统管理员，一般用户。 （2）提供用户注册和用户登录验证功能；其中登录用户的信息有：登录用户名，登录密码等。 （3）管理员可以实现对注册用户的管理（删除），并实现对图书的创建、查询、修改和删除等有关的操作。 （4）一般用户，只能查询图书，并进行借书、还书操作，每个用户最多借阅8本，即当目前借书已经是8本，则不能再借书了，只有还书后，才可以再借阅。 二．涉及技术 Struts2框架、MySQL数据库、C3P0数据池、Jsp、HTML、CSS、JavaScript等技术。 三．设计思路 1. 基于Struts2框架进行编程设计，连接MySQL数据库实现数据的增删查改，应用Jsp、HTML、CSS、JavaScript对访问页面进行编写和美化。 2. 分别创建book表和user表，用以存放图书信息和用户数据。其中user表中，设有flag以区分管理员和普通用户。 3. 分别创建Book类和User类，与数据表相对应。每本书和每个用户都有唯一的id与之对应。 4. 创建C3P0属性文件和数据库连接工具类。 5. 设计数据库操作类：UserDao类和BookDao类。UserDao用于实现所有对user表的操作，BookDao用于实现所有对book表的操作。 6. 创建分别对应UserDao类和BookDao类的Action：UserAction和BookAction。采用基于注解的方式进行Action配置。 7. 用户账号分为管理员账号和普通用户账号，注册时加以区分，登录时即可自动判断进入对应的操作主页面。 8. 管理员可实现对用户的查询显示，模糊查询，删除，批量删除，全选和取消全选等功能；可实现对图书的查询显示，模糊查询，添加，删除，批量删除，全选和取消全选等功能。 9. 普通用户可实现借书和还书功能，借书功能通过对book表的查询，将未借出的图书按照id顺序排列显示，点击表格后方的“借阅”按钮，进行确认借阅，将book表中本书的borrowperson列的值改为本用户账号。对于借阅成功的图书可以在“当前借阅”中进行查看。还书功能通过在“当前借阅”中点击“还书”按钮，进行确认还书，将book表中本书的borrowperson列的值改为“空”，本书信息将可以在“借书”界面查看。 四．存在的问题 1. 原本希望能为每一个用户创建一个对应的以其账号命名的数据表，用以存放用户所借图书信息，但创建表的SQL语句无法在java代码中执行，所以只好在book表中添加一列borrowperson，用来存放借阅本书的用户账号，这样查询用户当前借阅记录时，以“where borrowperson=‘account’”为条件对book表进行查询即可。但是每个用户要当前查询借阅记录时都需要对整个book表进行遍历，效率太低。 2. 模糊查询时，因同时需要进行where筛选，SQL语句无法执行，只好分开查询，先进行模糊查询，查询结果存放到list表中，再通过遍历list表进行判断是否符合where的条件，若符合，则存入另一个list表中。这种方法虽然实现了查询，但效率太低，代码过于繁重。 五．改进预想 这些本不应该是预想，原本希望在本次作业中实现的，但时间不够充分，只能作为下一步的改建预想。 1. 希望实现登录时验证码验证登录； 2. 希望实现查询时，查询结果分页浏览； 3. 进一步优化Action之间的传值方法； 4. 页面进一步优化、美化； 5. 实现用户借书还书时间记录，和借阅时长限制。

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  • 赵广陆 :
    还不错，挺好
    2020-03-24

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