基于javaweb+mysql的jsp+servlet图书图书馆管理系统(java+jsp+layui+bootstrap+servlet+mysql)

运行环境

Java≥8、MySQL≥5.7、Tomcat≥8

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

功能说明

基于javaweb+mysql的JSP+Servlet图书图书馆管理系统(java+jsp+layui+bootstrap+servlet+mysql)

项目介绍

使用jsp+servlet、layui、mysql完成的图书馆系统，包含用户图书借阅、图书管理员、系统管理员界面，功能齐全。

开发工具为eclipse/IDEA，环境java8，tomcat9.0+，mysql为5.7（mysql8也行）

项目详细介绍

本图书管理系统总体上分为前台页面显示和后台管理。

前台页面（即本书图书管理系统的首页）实现了公告的显示，图书查询，留言建议三大主要功能，有读者规则查看功能，师生们可以看到图书管理人员发布的最新公告信息，并可以查询自己感兴趣的图书，查看留言提议，用户登录后还有个人资料修改、个人借阅信息查询、个人违章信息查询等功能，也可以给学校的图书管理人员留言提议。

后台的页面则集成了图书管理中所需的功能，分成图书管理人员和系统管理人员，平时管理人员的工作都是在后台中完成的。前台是为了师生显示的。相对应的后台是针对学校图书管理人员，后台的页面都加密，如果不正常登录是进入不了后台管理页面的，后台图书管理人员功能包括：借阅图书、归还图书、借书记录显示与查找、还书记录显示与查找、公告增删改查；后台系统管理员功能包括：对书籍的增删改查、对书籍分类的增删改、对借阅证的增删改查、对借阅信息的显示与查找、对借阅规则的增删改、对图书管理员的增删改、对近期借阅书籍数量的折线图显示，以及对这些表格数据进行Excel表格的输出

共包含三个大模块：用户、图书管理员、系统管理员

一、用户模块

  1. 查看公告：能看到图书管理员发布的公告信息。 2. 图书查看：分页显示，能看到图书总览，能通过图书编号、图书名称、作者、存放位置、图书描述进行模糊查询 3. 个人违章信息（登录后）：个人历史违章信息与查询 4. 图书馆读者留言（登录后）：对图书馆的建议，或对书籍的评价 5. 查看借阅规则：不同的规则有不同的借阅限定数量、限定时间、超期费用 6. 个人信息（登录后）：对个人信息的查看与登录密码的修改 7. 个人借阅信息（登录后）：对个人借阅记录的分页查看与查询

二、图书管理员模块

  1. 借还图书：帮助用户借阅图书，并判断符不符合借阅规则、返还图书时判断有没有超期，超期则输出超期费用再归还 2. 借阅报表：分页显示所有借阅记录、能进行查询和输出结果到excel公告管理：能添加编辑和删除公告 3. 还书报表：分页显示所有未还的书籍，能通过借阅证号、图书编号、借阅日期、截止日期等条件进行模糊查询 4. 个人信息修改：修改个人信息、密码等

三、系统管理员模块

  1. 书籍管理：分页，新添图书，设置图书各种信息，编辑删除，通过编号、书名、作者、描述等进行搜索，输出结果到excel，并且能查看该书籍被谁借阅过。 2. 分类管理：分页显示，增删改书籍分类，书籍分类方便查阅整理 3. 借阅证管理：分页显示所有借阅证，增删改查用户借阅证，查看该借阅证所有的借阅记录 4. 借阅规则管理：能显示、编辑、删除所有借阅规则，借阅规则将决定该图书证能借阅什么图书馆的图书，能借多少本，能借多久以及超期每天的费用。 5. 借阅信息查询：分页显示，能条件查询超期没还的，根据编号、借阅证号、书籍编号、借阅日期等进行模糊查询，输出结果到excel等，系统管理员只能查询，不能增删改借阅信息，这个操作由图书管理员操作。 6. 图书管理员管理：对图书管理员进行增删改操作，但是不能修改原来的账号 7. 图书借阅统计：通过折线图将图书馆近30天的每天借阅书籍数量直观的显示出来。

sql表

共有十张数据库表，书籍表、借书记录表、留言表、系统管理员表、借阅证表、图书管理管理员表书籍分类表、图书馆表、借阅规则表、公告表 – 书籍表 – 编号、姓名、作者、存放的图书馆、分类编号、存放位置、是否借出、书籍描述 – 借书记录表 – 编号、借阅证编号、书籍编号、借书日期、限制日期、归还日期、违规描述、处理人编号 – 留言表 – 编号、借阅证编号、留言内容、留言日期 – 系统管理员表 – 账号、密码 – 借阅证表 – 编号、密码、借阅者姓名、规则编号、状态（丢失、可用） – 图书管理员表 – 编号、姓名、账号、密码、邮箱 – 书籍分类表 – 编号、分类名、分类描述 – 图书馆表 – 编号、图书馆名、描述 – 规则表 – 编号、限制借阅数量、限制借阅天数、图书超期每天费用 – 公告表 – 编号、标题、公告内容、发布日期

环境需要

1.运行环境：最好是java jdk 1.8，我们在这个平台上运行的。其他版本理论上也可以。 2.IDE环境：IDEA，Eclipse,Myeclipse都可以。推荐IDEA; 3.tomcat环境：Tomcat 9.x版本，注：tomcat9.0以下会有问题； 4.硬件环境：windows 7/8/10 1G内存以上；或者 Mac OS； 5.是否Maven项目: 否；查看源码目录中是否包含pom.xml；若包含，则为maven项目，否则为非maven项目 6.数据库：MySql 5.7版本，（mysql8也行）

技术栈

  1. 后端：JSP+Servlet 2. 前端：jsp+layui+bootstrap+jQuery

使用说明

  1. 使用Navicat或者其它工具，在mysql中创建对应名称的数据库，并导入项目的sql文件； 2. 使用IDEA/Eclipse/MyEclipse导入项目，Eclipse/MyEclipse导入时，若为maven项目请选择maven;若为maven项目，导入成功后请执行maven clean;maven install命令，配置tomcat，然后运行； 3. 将项目中src/javabean/Base.java和JDBCBean.java配置文件中的数据库配置改为自己的配置; 4. 运行项目，输入localhost:8080/xxx 登录 5. 用户账号密码：1805010219 1234 图书管理员账号密码：root 1234 系统管理员账号密码：admin admin
resultSet = pstmt.executeQuery();while (resultSet.next()) {String library = resultSet.getString("library_id");String sql1 = "select * from library where ID =" + library;PreparedStatement pstmt1 = connection.prepareStatement(sql1);ResultSet rs1 = pstmt1.executeQuery();String lib = "";while (rs1.next()) {lib = rs1.getString("name");}String sortid = resultSet.getString("sort_id");String sql2 = "select * from book_sort where ID =" + sortid;PreparedStatement pstmt2 = connection.prepareStatement(sql2);ResultSet rs2 = pstmt2.executeQuery();String sort = "";while (rs2.next()) {sort = rs2.getString("name");}jsonData.put("id", resultSet.getString("id"));jsonData.put("name", resultSet.getString("name"));jsonData.put("author", resultSet.getString("author"));jsonData.put("library_id", lib);jsonData.put("sort_id", sort);jsonData.put("position", resultSet.getString("position"));jsonData.put("status", resultSet.getString("status"));jsonData.put("description", resultSet.getString("description"));jsonArray.add(jsonData);}countSql = "select count(*) as count from books ";countSql += where;countPstmt = connection.prepareStatement(countSql);countSet = countPstmt.executeQuery();if (countSet.next()) {count = countSet.getInt("count");}if (!jsonArray.isEmpty()) {code = 0;msg = "查询成功";}} catch (ClassNotFoundException e) {msg = "class没找到";} catch (SQLException e) {msg = "sql错误";
pstmt1 = connection1.prepareStatement(findIdSql);pstmt1.setString(1, password);pstmt1.setString(2, reader);pstmt1.setString(3, rule_id);pstmt1.setString(4, status);dataSet = pstmt1.executeQuery();if(dataSet.next()) {jsonData.put("id", dataSet.getString("id"));}} catch (ClassNotFoundException e) {msg = "发生异常";} catch (SQLException e) {msg = "sql错误";System.out.println("sql失败");} try {Base.closeResource(connection, pstmt, null);Base.closeResource(connection1, pstmt1, dataSet);} catch (SQLException e) {msg = "关闭资源失败";}if(result == 1 && !jsonData.isNullObject() && !jsonData.isEmpty()) {System.out.println(jsonData.toString());//debugcode = "0";msg = "添加成功";}else {code = "1";msg = "执行失败";}}json.put("code", code);json.put("msg", msg);json.put("data", jsonData.toString());PrintWriter out = resp.getWriter();out.print(json.toString());}}package servlet.admin;
 * Servlet implementation class ReturnTable */@WebServlet("/manager1/returnTable")public class ReturnTable extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {resp.setContentType("application/json; charset=utf8");// 接收参数String limit = req.getParameter("limit");String page = req.getParameter("page");String condition = (String) req.getParameter("condition");String conditionValue = (String) req.getParameter("conditionValue");String where = ""; // 无限制条件if (page == null) {page = "1";}if (limit == null) {limit = "10";}// 准备查询Connection connection = null;PreparedStatement pstmt = null;PreparedStatement countPstmt = null;ResultSet resultSet = null;ResultSet countSet = null;String sql = "";String countSql = "";// 准备返回参数int code = 1;String msg = "无数据";int count = 0;JSONObject jsonData = new JSONObject();JSONArray jsonArray = new JSONArray();JSONObject jsonResult = new JSONObject();// 进行查询try {connection = (Connection) Base.getConnection();sql = "select * from borrow_books where manager_id is null";if (condition != null && conditionValue != null && !condition.equals("") && !conditionValue.equals("")) {
@WebServlet("/admin/ruleAdd")public class RuleAdd extends HttpServlet {@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {resp.setContentType("application/json; charset=utf8");// 准备数据Connection connection = null;PreparedStatement pstmt = null;ResultSet resultSet = null;int result = 0;String sql = "";String borrow_library = "";// 准备返回数据int code = 1;String msg = "";// 获取数据// 获取限定图书馆1、2、3int num = 0;try {Map<String, String> libraryMap = Common.getLibraryMap();for(String key : libraryMap.keySet()) {if(req.getParameter("borrow_library[" +key +"]") != null) {if(num == 0) {borrow_library += key;num++;}else {borrow_library += "、"+key;}}}
String regEx_html = "]+>"; // 定义HTML标签的正则表达式  Pattern p_script = Pattern.compile(regEx_script,Pattern.CASE_INSENSITIVE); Matcher m_script = p_script.matcher(htmlStr); htmlStr=m_script.replaceAll(""); // 过滤script标签  Pattern p_style=Pattern.compile(regEx_style,Pattern.CASE_INSENSITIVE); Matcher m_style=p_style.matcher(htmlStr); htmlStr=m_style.replaceAll(""); // 过滤style标签  Pattern p_html=Pattern.compile(regEx_html,Pattern.CASE_INSENSITIVE); Matcher m_html=p_html.matcher(htmlStr); htmlStr=m_html.replaceAll(""); // 过滤html标签  return htmlStr.trim(); // 返回文本字符串 } /** * 一般使用ServletRequest对象获取表单提交的数据， * （主要通过 getParameter() 和 getParameterValues() * 方法获取），再此创建内部类Request,重写getParameter() * 和 getParameterValues()，并在重写的两个方法中实现过滤*/class Request extends HttpServletRequestWrapper{// HttpServletRequest//Wrapper是servletRequest的实现类public Request(HttpServletRequest request) {super(request);}@Overridepublic String getParameter(String name) {// 返回过滤后的参数值return filter(super.getRequest().getParameter(name));}@Overridepublic String[] getParameterValues(String name) {// 获取所有参数值String[] values = super.getRequest().getParameterValues(name);// 通过循环对所有参数进行进行过滤for(int i=0;i<values.length;i++){values[i] = filter(values[i]);}return values;}}
countSql += where;countPstmt = connection.prepareStatement(countSql);countSet = countPstmt.executeQuery();if (countSet.next()) {count = countSet.getInt("count");}if (!jsonArray.isEmpty()) {code = 0;msg = "查询成功";}} catch (ClassNotFoundException e) {msg = "class没找到";} catch (SQLException e) {msg = "sql错误";} finally {try {Base.closeResource(null, pstmt, resultSet);Base.closeResource(connection, countPstmt, countSet);} catch (SQLException e) {msg = "关闭资源失败";}}// 返回数据jsonResult.put("code", code);jsonResult.put("count", count);jsonResult.put("msg", msg);jsonResult.put("data", jsonArray.toArray());PrintWriter out = resp.getWriter();out.print(jsonResult.toString());}}package servlet.manager;
String position = req.getParameter("position");String status = req.getParameter("status");String description = req.getParameter("description");System.out.println(description+"-------------");JSONObject json = new JSONObject();//if(id == null || id.equals(""))Connection connection = null;PreparedStatement pstmt = null;//ResultSet resultSet = null;int result = 0;String sql = "update books set name=? ,author=? ,library_id=? ,sort_id=? ,position=? ,status=?, description=? where id=?";PrintWriter out = resp.getWriter();try {connection = (Connection) Base.getConnection();pstmt = connection.prepareStatement(sql);pstmt.setString(1, name);pstmt.setString(2, author);pstmt.setString(3, library_id);pstmt.setString(4, sort_id);pstmt.setString(5, position);pstmt.setString(6, status);pstmt.setString(7, description);pstmt.setString(8, id);result = pstmt.executeUpdate();} catch (SQLException e) {} catch (ClassNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();}finally {try {Base.closeResource(connection, pstmt, null);} catch (SQLException e) {e.printStackTrace();}}if(result==1) {json.put("code", "0");json.put("msg", "success");}else {json.put("code", "1");json.put("msg", "error");}out.write(json.toString()); //System.out.println(postData);//JSONObject json = JSONObject.fromObject();}
count = countSet.getInt("count");}if (!jsonArray.isEmpty()) {code = 0;msg = "查询成功";}} catch (ClassNotFoundException e) {msg = "class没找到";} catch (SQLException e) {msg = "sql错误";} finally {try {Base.closeResource(null, pstmt, resultSet);Base.closeResource(connection, countPstmt, countSet);} catch (SQLException e) {msg = "关闭资源失败";}}// 返回数据jsonResult.put("code", code);jsonResult.put("count", count);jsonResult.put("msg", msg);jsonResult.put("data", jsonArray.toArray());PrintWriter out = resp.getWriter();out.print(jsonResult.toString());}}package servlet.manager;
String conditionValue = (String) req.getParameter("conditionValue");String where = null; // 无限制条件if (page == null) {page = "1";}if (limit == null) {limit = "10";}Connection connection = null;PreparedStatement pstmt = null;ResultSet resultSet = null;int code = 1;String msg = "error";int count = 0;String sql = "";// String countSql = ""JSONObject jsonObject = new JSONObject();JSONArray jsonArray = new JSONArray();JSONObject jsonResult = new JSONObject();try {// 获取数据connection = (Connection) Base.getConnection();sql = "select id,password,reader,rule_id,status from borrow_card";// whereif (condition != null && conditionValue != null && !condition.isEmpty() && !conditionValue.isEmpty()) {where = " where " + condition + " like '%" + conditionValue + "%'";sql = sql + where;}// 分页sql += "order by id desc limit ?,?";pstmt = connection.prepareStatement(sql);try {pstmt.setInt(1, (Integer.parseInt(page) - 1) * Integer.parseInt(limit));pstmt.setInt(2, Integer.parseInt(limit));} catch (NumberFormatException | SQLException e1) {}resultSet = pstmt.executeQuery();while (resultSet.next()) {jsonObject.put("id", resultSet.getString("id"));jsonObject.put("password", resultSet.getString("password"));jsonObject.put("reader", resultSet.getString("reader"));jsonObject.put("rule_id", resultSet.getString("rule_id"));jsonObject.put("status", resultSet.getString("status"));jsonArray.add(jsonObject);}// 获取总数sql = "select count(*) as count from borrow_card ";
}package servlet.admin;@WebServlet("/admin/cardDel")public class CardDel extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {resp.setContentType("application/json; charset=utf8");// 接收数据String id = req.getParameter("id");// 处理数据Connection connection = null;PreparedStatement delCardPstmt = null;PreparedStatement delHistoryPstmt = null;String delCardSql = null;String delHistorySql = null;int delCardResult = 0;int delHistoryResult = 0;// 返回数据String code = "1";String msg = "error";JSONObject jsonObject = new JSONObject();JSONObject jsonData = new JSONObject();// 开始处理if(id != null && !id.equals("")) {try {// 公共连接connection = (Connection) Base.getConnection();// 删除借书记录delHistorySql = "delete from borrow_books where card_id=?";delHistoryPstmt = connection.prepareStatement(delHistorySql);delHistoryPstmt.setString(1, id);
// 获取所有参数值String[] values = super.getRequest().getParameterValues(name);// 通过循环对所有参数进行进行过滤for(int i=0;i<values.length;i++){values[i] = filter(values[i]);}return values;}}/** * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain) */public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {/*if(encoding != null){request.setCharacterEncoding(encoding);//将request替换为重写后的requestrequest = new Request((HttpServletRequest) request);response.setContentType("text/html; charset = "+encoding);}*/request = new Request((HttpServletRequest) request);chain.doFilter(request, response);}/** * @see Filter#destroy() */public void destroy() {}}package servlet.admin;
@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {doGet(req, resp);}} package servlet.admin;@WebServlet("/admin/cardEdit")public class CardEdit extends HttpServlet {@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {resp.setContentType("application/json; charset=utf8");// 接受数据String id = req.getParameter("id");String password = req.getParameter("password");String reader = req.getParameter("reader");String rule_id = req.getParameter("rule_id");String status = req.getParameter("status");// 准备资源Connection connection = null;PreparedStatement pstmt = null;ResultSet resultSet = null;int result = 0;String sql = null;
String msg = "error";JSONObject jsonObject = new JSONObject();JSONObject jsonData = new JSONObject();// 开始处理if(id != null && !id.equals("")) {try {// 公共连接connection = (Connection) Base.getConnection();// 删除借书记录delHistorySql = "delete from borrow_books where card_id=?";delHistoryPstmt = connection.prepareStatement(delHistorySql);delHistoryPstmt.setString(1, id);delHistoryResult = delHistoryPstmt.executeUpdate();// 返回删除记录条数jsonData.put("num", delHistoryResult);// 删除阅读证delCardSql = "delete from borrow_card where id=? limit 1";delCardPstmt = connection.prepareStatement(delCardSql);delCardPstmt.setString(1, id);delCardResult = delCardPstmt.executeUpdate();} catch (ClassNotFoundException e) {msg = "连接失败";} catch (SQLException e) {msg = "sql错误";} finally {try {delCardPstmt.close();Base.closeResource(connection, delCardPstmt, null);} catch (SQLException e) {msg = "关闭失败";}}}PrintWriter out = resp.getWriter();if(delCardResult == 1) {code = "0";msg = "删除借阅证成功";}jsonObject.put("code", code);jsonObject.put("msg", msg);jsonObject.put("data", jsonData);out.print(jsonObject.toString());}
limit = "10";}// 准备查询Connection connection = null;PreparedStatement pstmt = null;PreparedStatement countPstmt = null;ResultSet resultSet = null;ResultSet countSet = null;String sql = "";String countSql = "";// 准备返回参数int code = 1;String msg = "无数据";int count = 0;JSONObject jsonData = new JSONObject();JSONArray jsonArray = new JSONArray();JSONObject jsonResult = new JSONObject();// 进行查询try {connection = (Connection) Base.getConnection();sql = "select * from borrow_books where manager_id is not null";if (condition != null && conditionValue != null && !condition.equals("") && !conditionValue.equals("")) {where = " and " + condition + " like '%" + conditionValue + "%' ";sql += where;}sql += " limit ?,?";// 1 10 (1-1)*10System.out.println("???" + sql);pstmt = connection.prepareStatement(sql);pstmt.setInt(1, (Integer.parseInt(page) - 1) * Integer.parseInt(limit));pstmt.setInt(2, Integer.parseInt(limit));resultSet = pstmt.executeQuery();while (resultSet.next()) {jsonData.put("id", resultSet.getString("id"));jsonData.put("card_id", resultSet.getString("card_id"));jsonData.put("book_id", resultSet.getString("book_id"));jsonData.put("borrow_date", resultSet.getString("borrow_date"));jsonData.put("end_date", resultSet.getString("end_date"));jsonData.put("return_date", resultSet.getString("return_date"));jsonData.put("illegal", resultSet.getString("illegal"));jsonData.put("manager_id", resultSet.getString("manager_id"));jsonArray.add(jsonData);}countSql = "select count(*) as count from borrow_books where manager_id is not null";
jsonData.put("book_id", resultSet.getString("book_id"));jsonData.put("borrow_date", resultSet.getString("borrow_date"));jsonData.put("end_date", resultSet.getString("end_date"));jsonArray.add(jsonData);}countSql = "select count(*) as count from borrow_books where manager_id is null";countSql += where;countPstmt = connection.prepareStatement(countSql);countSet = countPstmt.executeQuery();if (countSet.next()) {count = countSet.getInt("count");}if (!jsonArray.isEmpty()) {code = 0;msg = "查询成功";}} catch (ClassNotFoundException e) {msg = "class没找到";} catch (SQLException e) {msg = "sql错误";} finally {try {Base.closeResource(null, pstmt, resultSet);Base.closeResource(connection, countPstmt, countSet);} catch (SQLException e) {msg = "关闭资源失败";}}// 返回数据jsonResult.put("code", code);jsonResult.put("count", count);jsonResult.put("msg", msg);jsonResult.put("data", jsonArray.toArray());PrintWriter out = resp.getWriter();out.print(jsonResult.toString());}/** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse *response) */protected void doPost(HttpServletRequest request, HttpServletResponse response)
msg = "class没找到";} catch (SQLException e) {msg = "sql错误";} finally {try {Base.closeResource(null, pstmt, resultSet);Base.closeResource(connection, countPstmt, countSet);} catch (SQLException e) {msg = "关闭资源失败";}}// 返回数据jsonResult.put("code", code);jsonResult.put("count", count);jsonResult.put("msg", msg);jsonResult.put("data", jsonArray.toArray());PrintWriter out = resp.getWriter();out.print(jsonResult.toString());}}package servlet.reader;/** * Servlet implementation class Illegal */@WebServlet("/reader/illegal")public class Illegal extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {resp.setContentType("application/json; charset=utf8");
result = pstmt.executeUpdate();if(result == 1) {code = 0;msg = "success";}} catch (ClassNotFoundException e) {msg = "classnotfound";} catch (SQLException e) {msg = "SQL错误";} finally {try {Base.closeResource(connection, pstmt, null);} catch (SQLException e) {msg = "关闭失败";}}PrintWriter out = resp.getWriter();out.print(Util.jsonResponse(code, msg, null));}}package servlet.admin;@WebServlet("/admin/cardDel")public class CardDel extends HttpServlet {
}String borrow_num = req.getParameter("borrow_num");String limit_day = req.getParameter("limit_day");String overtime_fee = req.getParameter("overtime_fee");try {connection = (Connection) Base.getConnection();sql = "insert into rules(borrow_num, limit_day, borrow_library, overtime_fee) values(?,?,?,?)";pstmt = connection.prepareStatement(sql);pstmt.setString(1, borrow_num);pstmt.setString(2, limit_day);pstmt.setString(3, borrow_library);pstmt.setString(4, overtime_fee);result = pstmt.executeUpdate();if(result == 1) {code = 0;msg = "success";}} catch (ClassNotFoundException e) {msg = "classnotfound";} catch (SQLException e) {msg = "SQL错误";} finally {try {Base.closeResource(connection, pstmt, null);} catch (SQLException e) {msg = "关闭失败";}}PrintWriter out = resp.getWriter();out.print(Util.jsonResponse(code, msg, null));}}package servlet.admin;
JSONObject json = new JSONObject();PrintWriter out = resp.getWriter();// 判断数据if(id == null || password == null || reader == null || reader == null || status == null || id.equals("") || password.equals("") || reader.equals("") || rule_id.equals("") || status.equals("")) {code = "1";msg = "参数不能为空";}else {sql = "update borrow_card set password=?, reader=?, rule_id=?, status=? where id=?";try {connection = (Connection) Base.getConnection();pstmt = connection.prepareStatement(sql);pstmt.setString(1, password);pstmt.setString(2, reader);pstmt.setString(3, rule_id);pstmt.setString(4, status);pstmt.setString(5, id);result = pstmt.executeUpdate();} catch (ClassNotFoundException e1) {msg = "错误";} catch (SQLException e) {msg = "sql错误";} finally {try {Base.closeResource(connection, pstmt, resultSet);} catch (SQLException e) {msg = "关闭失败";}}if(result == 1) {code = "0";msg = "修改成功";}json.put("code", code);json.put("msg", msg);out.print(json.toString());}}}package servlet.admin;
}}// 返回数据jsonResult.put("code", code);jsonResult.put("count", count);jsonResult.put("msg", msg);jsonResult.put("data", jsonArray.toArray());PrintWriter out = resp.getWriter();out.print(jsonResult.toString());}}package servlet.reader;/** * Servlet implementation class Illegal */@WebServlet("/reader/illegal")public class Illegal extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {resp.setContentType("application/json; charset=utf8");// 接收参数String limit = req.getParameter("limit");String page = req.getParameter("page");String condition = (String) req.getParameter("condition");String conditionValue = (String) req.getParameter("conditionValue");String where = ""; // 无限制条件if (page == null) {page = "1";}
// 准备返回参数int code = 1;String msg = "无数据";int count = 0;HttpSession session = req.getSession();JSONObject jsonData = new JSONObject();JSONArray jsonArray = new JSONArray();JSONObject jsonResult = new JSONObject();// 进行查询try {connection = (Connection) Base.getConnection();sql = "select * from borrow_books where card_id = " + session.getAttribute("reader");if (condition != null && conditionValue != null && !condition.equals("") && !conditionValue.equals("")) {where = " and " + condition + " like '%" + conditionValue + "%' ";sql += where;}sql += " limit ?,?";// 1 10 (1-1)*10System.out.println("???" + sql);pstmt = connection.prepareStatement(sql);pstmt.setInt(1, (Integer.parseInt(page) - 1) * Integer.parseInt(limit));pstmt.setInt(2, Integer.parseInt(limit));resultSet = pstmt.executeQuery();while (resultSet.next()) {jsonData.put("id", resultSet.getString("id"));jsonData.put("card_id", resultSet.getString("card_id"));jsonData.put("book_id", resultSet.getString("book_id"));jsonData.put("borrow_date", resultSet.getString("borrow_date"));jsonData.put("end_date", resultSet.getString("end_date"));jsonData.put("return_date", resultSet.getString("return_date"));jsonArray.add(jsonData);}countSql = "select count(*) as count from borrow_books where card_id = "+ req.getSession().getAttribute("reader");countSql += where;countPstmt = connection.prepareStatement(countSql);countSet = countPstmt.executeQuery();if (countSet.next()) {count = countSet.getInt("count");
} catch (SQLException e) {msg = "sql错误";} finally {try {Base.closeResource(null, pstmt, resultSet);Base.closeResource(connection, countPstmt, countSet);} catch (SQLException e) {msg = "关闭资源失败";}}// 返回数据jsonResult.put("code", code);jsonResult.put("count", count);jsonResult.put("msg", msg);jsonResult.put("data", jsonArray.toArray());PrintWriter out = resp.getWriter();out.print(jsonResult.toString());}}package servlet.manager;@WebServlet("/manager1/borrowTable")
@WebServlet("/admin/borrowList")public class BorrowList extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {resp.setContentType("application/json; charset=utf8");// 接收参数String limit = req.getParameter("limit");String page = req.getParameter("page");String condition = (String) req.getParameter("condition");String conditionValue = (String) req.getParameter("conditionValue");String where = ""; // 无限制条件if(page == null) {page = "1";}if(limit == null) {limit = "10";}// 准备查询Connection connection = null;PreparedStatement pstmt = null;PreparedStatement countPstmt = null;ResultSet resultSet = null;ResultSet countSet = null;String sql = "";String countSql = "";// 准备返回参数int code = 1;String msg = "error";int count = 0;
jsonObject.put("id", resultSet.getString("id"));jsonObject.put("password", resultSet.getString("password"));jsonObject.put("reader", resultSet.getString("reader"));jsonObject.put("rule_id", resultSet.getString("rule_id"));jsonObject.put("status", resultSet.getString("status"));jsonArray.add(jsonObject);}// 获取总数sql = "select count(*) as count from borrow_card ";// 有限制if (where != null) {sql = sql + where;}pstmt = connection.prepareStatement(sql);resultSet = pstmt.executeQuery();if (resultSet.next()) {count = resultSet.getInt("count");}if (!jsonArray.isEmpty()) {code = 0;msg = "成功";}} catch (ClassNotFoundException e) {msg = "没找到";e.printStackTrace();} catch (SQLException e) {msg = "sql错误";} finally {try {Base.closeResource(connection, pstmt, resultSet);} catch (SQLException e) {msg = "关闭失败";}}jsonResult.put("code", code);jsonResult.put("count", count);jsonResult.put("msg", msg);jsonResult.put("data", jsonArray.toString());PrintWriter out = resp.getWriter();
@WebServlet("/admin/cardAdd")public class CardAdd extends HttpServlet {@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {resp.setContentType("application/json; charset=utf8");// 获取参数String reader = req.getParameter("reader");String password = req.getParameter("password");String rule_id = req.getParameter("rule_id");String status = req.getParameter("status");// 准备资源String code = "1";String msg = "error";String data = "";JSONObject json = new JSONObject();JSONObject jsonData = new JSONObject();Connection connection = null;Connection connection1 = null;PreparedStatement pstmt = null;PreparedStatement pstmt1 = null;String sql = null;int result = 0;ResultSet dataSet = null;// 参数不能为空if(reader == null || password == null || rule_id == null || rule_id == null || status == null) {code = "1";msg = "值不能为空";}else {try {connection = (Connection) Base.getConnection();sql = "insert into borrow_card(password, reader, rule_id, status) values(?,?,?,?)";pstmt = connection.prepareStatement(sql);pstmt.setString(1, password);pstmt.setString(2, reader);pstmt.setString(3, rule_id);pstmt.setString(4, status);result = pstmt.executeUpdate();//获取idconnection1= (Connection) Base.getConnection();
code = 0;msg = "查询成功";}} catch (ClassNotFoundException e) {msg = "class没找到";} catch (SQLException e) {msg = "sql错误";} finally {try {Base.closeResource(null, pstmt, resultSet);Base.closeResource(connection, countPstmt, countSet);} catch (SQLException e) {msg = "关闭资源失败";}}// 返回数据jsonResult.put("code", code);jsonResult.put("count", count);jsonResult.put("msg", msg);jsonResult.put("data", jsonArray.toArray());PrintWriter out = resp.getWriter();out.print(jsonResult.toString());}}package servlet.admin;
}} catch (ClassNotFoundException e) {msg = "class没找到";} catch (SQLException e) {msg = "sql错误";} finally {try {Base.closeResource(null, pstmt, resultSet);Base.closeResource(connection, countPstmt, countSet);} catch (SQLException e) {msg = "关闭资源失败";}}// 返回数据jsonResult.put("code", code);jsonResult.put("count", count);jsonResult.put("msg", msg);jsonResult.put("data", jsonArray.toArray());PrintWriter out = resp.getWriter();out.print(jsonResult.toString());}}package servlet.admin;@WebServlet("/admin/borrowList")public class BorrowList extends HttpServlet {@Override