一、系统简介
本项目采用eclipse工具开发，jsp+servlet技术编写，样式采用了layui前端框架，数据库采用的是mysql，navicat开发工具。
系统一共分为2个角色分别是：管理员，学生
二、模块简介
管理员
1、登录
2、修改个人信息
3、图书类型管理
4、图书管理
5、图书借阅管理
6、借阅审批管理
7、图书借阅统计
8、学生管理
9、公告管理
学生
1、登录、注册
2、个人信息修改
3、图书借阅
4、借阅管理
5、借阅统计
6、查看公告
三、相关截图
项目结构、数据库结构
登录注册页面
图书类型管理
图书管理
学生管理
审批管理
借阅管理
公告管理
管理员统计
学生统计
图书借阅
借阅历史
四、相关代码
登录代码
用户通过login.jsp页面填写指定的用户名和密码，点击登录按钮，执行servlet里面的方法，后台校验成功后，返回main.jsp
Login Page 
登 录 图书管理系统${message} 去注册 layui.use(['layer', 'form','jquery'], function(){var form = layui.form, layer = layui.layer, $= layui.jquery; form.render();//这句一定要加，占坑 $("#login").on("click", function() {var userName = $("#userName").val().trim(); // trim()去除空格var password = $("#password").val().trim();var type = $("#type").val();if(userName == ""){layer.msg('用户名或者手机号不能为空！');return false;}if(password == ""){layer.msg('密码不能为空！');return false;}if(type == ""){layer.msg('请选择角色！');return false;}});setTimeout(function(){ $("#msg").html("")},3000);setTimeout(function(){ $("#msg2").html("")},3000);setTimeout(function(){ $("#msg3").html("")},3000);});private void login(HttpServletRequest request, HttpServletResponse response) {// TODO Auto-generated method stubremoveAll(request,response);String userName = request.getParameter("userName");String password = request.getParameter("password");String type = request.getParameter("type");if(type.equals("1")){Admin admin = new Admin();admin.setUserName(userName);admin.setPwd(password);Admin admin1 = ls.selectAdmin(admin);try { if (admin1 == null){request.setAttribute("message", "管理员用户不存在或者密码错误");request.getRequestDispatcher("/WEB-INF/views/login.jsp").forward(request, response); }else {request.getSession().setAttribute("admin",admin1);request.getSession().setAttribute("flag",1);request.getRequestDispatcher("/WEB-INF/views/main.jsp").forward(request, response); } } catch (Exception e) { e.printStackTrace(); } }else if(type.equals("2")){ Student student = new Student(); student.setStno(userName); student.setPwd(password); Student student1 = ls.selectStudent(student);try { if (student1 == null){request.setAttribute("message", "学号不存在或者密码错误");request.getRequestDispatcher("/WEB-INF/views/login.jsp").forward(request, response); }else {request.getSession().setAttribute("student",student1);request.getSession().setAttribute("flag",2);request.getRequestDispatcher("/WEB-INF/views/main.jsp").forward(request, response); } } catch (Exception e) { e.printStackTrace(); } }else{request.setAttribute("message", "工作人员手机号不存在或者密码错误");try {request.getRequestDispatcher("/WEB-INF/views/login.jsp").forward(request, response);} catch (Exception e) {e.printStackTrace();}}}注册代码
学生初始化注册自己的账号，填写form表单，提价后，后台进行插入的操作，注册成功后跳转登录页面
Login Page 注 册 图书管理系统${message}请选择性别男女 返回 layui.use(['layer', 'form','jquery','laydate'], function(){var form = layui.form, layer = layui.layer, laydate=layui.laydate, $= layui.jquery; form.render();//这句一定要加，占坑laydate.render({elem: '#time'});$("#login").on("click", function() {var name = $("#name").val();var sex = $("#sex").val();var classes = $("#classes").val();var time = $("#time").val();var xy = $("#xy").val();var phone = $("#phone").val();var pwd = $("#pwd").val();var stno = $("#stno").val();if(sex == null || sex== ""){layer.msg('性别不能为空！');return false;}if(name == null || name== ""){layer.msg('姓名不能为空！');return false;}if(classes == null || classes== ""){layer.msg('班级不能为空！');return false;}if(time == null || time== ""){layer.msg('入学时间不能为空！');return false;}if(xy == null || xy== ""){layer.msg('学院不能为空！');return false;}if(phone == null || phone== ""){layer.msg('手机号不能为空！');return false;}if(pwd == null || pwd== ""){layer.msg('密码不能为空！');return false;}if(stno == null || stno== ""){layer.msg('学号不能为空！');return false;}});setTimeout(function(){ $("#msg").html("")},3000);setTimeout(function(){ $("#msg2").html("")},3000);setTimeout(function(){ $("#msg3").html("")},3000);});/** * 新增学生信息 * @param request * @param response */private void addStudent(HttpServletRequest request,HttpServletResponse response) {String te = request.getParameter("te");String name = request.getParameter("name");String sex = request.getParameter("sex");String classes = request.getParameter("classes");String time = request.getParameter("time");String xy = request.getParameter("xy");String phone = request.getParameter("phone");String pwd = request.getParameter("pwd");String stno = request.getParameter("stno");Student stu = new Student();stu.setClasses(classes);stu.setName(name);stu.setPhone(phone);stu.setPwd(pwd);stu.setSex(sex);stu.setState("1");stu.setStno(stno);stu.setTime(time);stu.setXy(xy);Student student = ss.selectStudentByPhone(phone);Student student1 = ss.selectStudentByStuNo(stno);if(te == null || te.equals("")){if(student != null){request.setAttribute("message", "电话号码重复！");try {request.getRequestDispatcher("/WEB-INF/views/student/addStudent.jsp").forward(request,response);} catch (Exception e) {e.printStackTrace();}}else if(student1 != null){request.setAttribute("message", "学号重复！");try {request.getRequestDispatcher("/WEB-INF/views/student/addStudent.jsp").forward(request,response);} catch (Exception e) {e.printStackTrace();}}else{try {ss.saveStudent(stu); response.sendRedirect(request.getContextPath()+"/StudentServlet?action=studentList");} catch (Exception e) {e.printStackTrace();}}}else{if(student != null){request.setAttribute("message", "电话号码重复！");try {request.getRequestDispatcher("/WEB-INF/views/register.jsp").forward(request,response);} catch (Exception e) {e.printStackTrace();}}else if(student1 != null){request.setAttribute("message", "学号重复！");try {request.getRequestDispatcher("/WEB-INF/views/register.jsp").forward(request,response);} catch (Exception e) {e.printStackTrace();}}else{try {ss.saveStudent(stu); response.sendRedirect(request.getContextPath()+"/LoginServlet?action=toLogin");} catch (Exception e) {e.printStackTrace();}}}}学生列表代码
后台分页查询所有学生的信息，返回到studentList.jsp中，进行遍历展示
/** * 分页查询学生 * @param request * @param response */private void studentList(HttpServletRequest request,HttpServletResponse response) {String p=request.getParameter("p");//接收页码int pageSize=4;//每页显示5条int pageNum=1; //默认第一页if(p!=null){pageNum= Integer.parseInt(p);}//调用分页查询List list=ss.getstudentListPage(pageNum,pageSize);//携带参数到页面int nums=ss.queryStudentCount(); //查询总数//计算总页数int totalPage=(nums%pageSize==0)? (nums/pageSize):(nums/pageSize+1);request.setAttribute("cp",pageNum); //当前页request.setAttribute("tp",totalPage); //总页数try { request.removeAttribute("msg"); request.setAttribute("list" ,list); request.getRequestDispatcher("/WEB-INF/views/student/studentList.jsp").forward(request, response);} catch (Exception e) {e.printStackTrace();}}学生列表 新增学生<%-- --%> 姓名 性别 班级 入学时间 学院 <!-- 能否借阅书籍 -->手机号 密码 学号 操作 ${u.name } ${u.sex } ${u.classes } ${u.time } ${u.xy } <%-- 能不能 --%>${u.phone } ${u.pwd } ${u.stno } 修改 删除<%-- 删除 --%>
首页1}">上一页1 ? (cp-2) :1}"end="${cp+2>tp?tp:(cp+2)}" var="e">${e}${e}<c:if test="${cp下一页尾页 234layui.use([ 'form','jquery','layer','laydate' ], function() {var form = layui.form, layer = layui.layer, laydate=layui.laydate, $= layui.jquery; form.render();//这句一定要加，占坑 $('a.layui-btn-danger').click(function(e){var id = $(e.currentTarget).parent().find('.weui-input').attr('id'); if(confirm("确定要删除吗？")){ $.post("StudentServlet?action=deleteStudent&id="+id, function(data) {layer.msg('删除成功！',{icon:6,offset:"auto",time:2000},function(){document.location.reload();//当前页面});});} })laydate.render({elem: '#time',type: 'year'});});新增学生代码
点击新增按钮跳转addStudent.jsp页面，用户填写相关信息后提交代码到studentservlet里面，进行插入操作后返回页面，遍历展示信息
新增学生 ${message}请选择性别男女
返回layui.use([ 'form','jquery','layer','laydate' ], function() {var form = layui.form, layer = layui.layer, laydate=layui.laydate, $= layui.jquery; form.render();//这句一定要加，占坑laydate.render({elem: '#time'});$(function () {// 给注册绑定单击事件i$("#sub_btn").click(function () {var name = $("#name").val();var sex = $("#sex").val();var classes = $("#classes").val();var time = $("#time").val();var xy = $("#xy").val();var phone = $("#phone").val();var pwd = $("#pwd").val();var stno = $("#stno").val();if(sex == null || sex== ""){layer.msg('性别不能为空！');return false;}if(name == null || name== ""){layer.msg('姓名不能为空！');return false;}if(classes == null || classes== ""){layer.msg('班级不能为空！');return false;}if(time == null || time== ""){layer.msg('入学时间不能为空！');return false;}if(xy == null || xy== ""){layer.msg('学院不能为空！');return false;}if(phone == null || phone== ""){layer.msg('手机号不能为空！');return false;}if(pwd == null || pwd== ""){layer.msg('密码不能为空！');return false;}if(stno == null || stno== ""){layer.msg('学号不能为空！');return false;}});setTimeout(function(){ $("#errorMsg").html("")},3000);}); setTimeout(function(){ $("#msg3").html("")},3000);});/** * 新增学生信息 * @param request * @param response */private void addStudent(HttpServletRequest request,HttpServletResponse response) {String te = request.getParameter("te");String name = request.getParameter("name");String sex = request.getParameter("sex");String classes = request.getParameter("classes");String time = request.getParameter("time");String xy = request.getParameter("xy");String phone = request.getParameter("phone");String pwd = request.getParameter("pwd");String stno = request.getParameter("stno");Student stu = new Student();stu.setClasses(classes);stu.setName(name);stu.setPhone(phone);stu.setPwd(pwd);stu.setSex(sex);stu.setState("1");stu.setStno(stno);stu.setTime(time);stu.setXy(xy);Student student = ss.selectStudentByPhone(phone);Student student1 = ss.selectStudentByStuNo(stno);if(te == null || te.equals("")){if(student != null){request.setAttribute("message", "电话号码重复！");try {request.getRequestDispatcher("/WEB-INF/views/student/addStudent.jsp").forward(request,response);} catch (Exception e) {e.printStackTrace();}}else if(student1 != null){request.setAttribute("message", "学号重复！");try {request.getRequestDispatcher("/WEB-INF/views/student/addStudent.jsp").forward(request,response);} catch (Exception e) {e.printStackTrace();}}else{try {ss.saveStudent(stu); response.sendRedirect(request.getContextPath()+"/StudentServlet?action=studentList");} catch (Exception e) {e.printStackTrace();}}}else{if(student != null){request.setAttribute("message", "电话号码重复！");try {request.getRequestDispatcher("/WEB-INF/views/register.jsp").forward(request,response);} catch (Exception e) {e.printStackTrace();}}else if(student1 != null){request.setAttribute("message", "学号重复！");try {request.getRequestDispatcher("/WEB-INF/views/register.jsp").forward(request,response);} catch (Exception e) {e.printStackTrace();}}else{try {ss.saveStudent(stu); response.sendRedirect(request.getContextPath()+"/LoginServlet?action=toLogin");} catch (Exception e) {e.printStackTrace();}}}}修改学生代码
页面点击修改按钮，跳转到修改的页面，用户修改制定内容后提交代码，执行action里面的servlet路径，serlvet执行相关代码后，返回到前端展示数据！！！！！
修改学生 ${message}请选择性别 男女 男女
返回 重置 layui.use([ 'form','jquery','layer','laydate' ], function() {var form = layui.form, layer = layui.layer, laydate=layui.laydate, $= layui.jquery; form.render();//这句一定要加，占坑laydate.render({elem: '#time'});$(function () {// 给注册绑定单击事件$("#sub_btn").click(function () {var name = $("#name").val();var sex = $("#sex").val();var classes = $("#classes").val();var time = $("#time").val();var xy = $("#xy").val();var phone = $("#phone").val();var pwd = $("#pwd").val();var stno = $("#stno").val();if(sex == null || sex== ""){layer.msg('性别不能为空！');return false;}if(name == null || name== ""){layer.msg('姓名不能为空！');return false;}if(classes == null || classes== ""){layer.msg('班级不能为空！');return false;}if(time == null || time== ""){layer.msg('入学时间不能为空！');return false;}if(xy == null || xy== ""){layer.msg('学院不能为空！');return false;}if(phone == null || phone== ""){layer.msg('手机号不能为空！');return false;}if(pwd == null || pwd== ""){layer.msg('密码不能为空！');return false;}if(stno == null || stno== ""){layer.msg('学号不能为空！');return false;}});setTimeout(function(){ $("#errorMsg").html("")},3000);}); setTimeout(function(){ $("#msg3").html("")},3000);});/** * 修改学生信息 * @param request * @param response */private void updateStudent(HttpServletRequest request,HttpServletResponse response) {Object flag = request.getSession().getAttribute("flag");String sid = request.getParameter("sid");String name = request.getParameter("name");String sex = request.getParameter("sex");String classes = request.getParameter("classes");String time = request.getParameter("time");String xy = request.getParameter("xy");String phone = request.getParameter("phone");String pwd = request.getParameter("pwd");String stno = request.getParameter("stno");Student stu = new Student();stu.setClasses(classes);stu.setName(name);stu.setPhone(phone);stu.setPwd(pwd);stu.setSex(sex);stu.setStno(stno);stu.setTime(time);stu.setXy(xy);stu.setId(Integer.parseInt(sid));try {ss.updateStudent(stu);if(flag != null && flag.toString().equals("1")){response.sendRedirect(request.getContextPath()+"/StudentServlet?action=studentList");}else{response.sendRedirect(request.getContextPath()+"/StudentServlet?action=toUpdateStudent&id="+sid);} } catch (Exception e) {e.printStackTrace();}}