package com.hjf.util; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; /** * 数据库连接工具 * @author Hu * */ public class DBUtil { public static String db_url = "jdbc:mysql://localhost:3306/course"; public static String db_user = "root"; public static String db_pass = "root"; public static Connection getConn () { Connection conn = null; try { Class.forName("com.mysql.jdbc.Driver");//加载驱动 conn = DriverManager.getConnection(db_url, db_user, db_pass); } catch (Exception e) { e.printStackTrace(); } return conn; } /** * 关闭连接 * @param state * @param conn */ public static void close (Statement state, Connection conn) { if (state != null) { try { state.close(); } catch (SQLException e) { e.printStackTrace(); } } if (conn != null) { try { conn.close(); } catch (SQLException e) { e.printStackTrace(); } } } public static void close (ResultSet rs, Statement state, Connection conn) { if (rs != null) { try { rs.close(); } catch (SQLException e) { e.printStackTrace(); } } if (state != null) { try { state.close(); } catch (SQLException e) { e.printStackTrace(); } } if (conn != null) { try { conn.close(); } catch (SQLException e) { e.printStackTrace(); } } } public static void main(String[] args) throws SQLException { Connection conn = getConn(); PreparedStatement pstmt = null; ResultSet rs = null; String sql ="select * from course"; pstmt = conn.prepareStatement(sql); rs = pstmt.executeQuery(); if(rs.next()){ System.out.println("空"); }else{ System.out.println("不空"); } } }
add.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% Object message = request.getAttribute("message"); if(message!=null && !"".equals(message)){ %> <script type="text/javascript"> alert("<%=request.getAttribute("message")%>"); </script> <%} %> <div align="center"> <h1 style="color: black;">库存物资录入</h1> <a href="index.jsp">返回主页</a> <form action="CourseServlet?method=add" method="post" onsubmit="return check()"> <div class="a"> 物资名称<input type="text" id="name" name="name"/> </div> <div class="a"> 生产厂家<input type="text" id="teacher" name="teacher" /> </div> <div class="a"> 型号<input type="text" id="classroom" name="classroom" /> </div> <div class="a"> 入库日期<input type="text" id="date" name="date" /> </div> <div class="a"> 规格<input type="text" id="size" name="size" /> </div> <div class="a"> 数量<input type="text" id="amount" name="amount" /> </div> <div class="a"> 送货人<input type="text" id="give" name="give" /> </div> <div class="a"> 出库日期<input type="text" id="out" name="out" /> </div> <div class="a"> <button type="submit" class="b">保 存</button> </div> </form> </div> <script type="text/javascript"> function check() { var name = document.getElementById("name");; var teacher = document.getElementById("teacher"); var classroom = document.getElementById("classroom"); var date = document.getElementById("date"); var size = document.getElementById("size"); var amount = document.getElementById("amount"); var out = document.getElementById("out"); var give = document.getElementById("give"); //非空 if(name.value == '') { alert('物资名称为空'); name.focus(); return false; } if(teacher.value == '') { alert('生产厂家为空'); teacher.focus(); return false; } if(teacher.value == '') { alert('入库日期为空'); teacher.focus(); return false; } if(classroom.value == '') { alert('型号为空'); classroom.focus(); return false; } if(date.value == '') { alert('型号为空'); date.focus(); return false; } if(size.value == '') { alert('型号为空'); size.focus(); return false; } if(amount.value == '') { alert('型号为空'); amount.focus(); return false; } if(out.value == '') { alert('型号为空'); out.focus(); return false; } if(give.value == '') { alert('型号为空'); give.focus(); return false; } } </script> </body> </html>
del.jsp
dao层
package com.hjf.dao; import java.sql.Connection; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.util.ArrayList; import java.util.List; import com.hjf.entity.Course; import com.hjf.util.DBUtil; /** * 课程Dao * Dao层操作数据 * @author Hu * */ public class CourseDao { /** * 添加 * @param course * @return */ public boolean add(Course course) { String sql = "insert into course(name, teacher, classroom，date,size,amount,out,give) values('" + course.getName() + "','" + course.getTeacher() + "','" + course.getClassroom()+"','"+course.getdate()+"'," +course.getsize()+"','"+course.getamount()+"','"+course.getout()+"','"+course.getgive()+"','"+ "')"; //创建数据库链接 Connection conn = DBUtil.getConn(); Statement state = null; boolean f = false; int a = 0; try { state = conn.createStatement(); state.executeUpdate(sql); } catch (Exception e) { e.printStackTrace(); } finally { //关闭连接 DBUtil.close(state, conn); } if (a > 0) { f = true; } return f; } /** * 删除 * * @param id * @return */ public boolean delete (int id) { boolean f = false; String sql = "delete from course where id='" + id + "'"; Connection conn = DBUtil.getConn(); Statement state = null; int a = 0; try { state = conn.createStatement(); a = state.executeUpdate(sql); } catch (SQLException e) { e.printStackTrace(); } finally { DBUtil.close(state, conn); } if (a > 0) { f = true; } return f; } /** * 修改 * @param name * @param pass */ public boolean update(Course course) { String sql = "update course set name='" + course.getName() + "', teacher='" + course.getTeacher() + "', classroom='" + course.getClassroom()+"',date='"+course.getdate()+"',size='"+course.getsize()+"',amount='"+course.getamount()+"',out='"+course.getout()+"'give='"+course.getgive() + "' where id='" + course.getId() + "'"; Connection conn = DBUtil.getConn(); Statement state = null; boolean f = false; int a = 0; try { state = conn.createStatement(); a = state.executeUpdate(sql); } catch (SQLException e) { e.printStackTrace(); } finally { DBUtil.close(state, conn); } if (a > 0) { f = true; } return f; } /** * 验证课程名称是否唯一 * true --- 不唯一 * @param name * @return */ public boolean name(String name) { boolean flag = false; String sql = "select name from course where name = '" + name + "'"; Connection conn = DBUtil.getConn(); Statement state = null; ResultSet rs = null; try { state = conn.createStatement(); rs = state.executeQuery(sql); while (rs.next()) { flag = true; } } catch (SQLException e) { e.printStackTrace(); } finally { DBUtil.close(rs, state, conn); } return flag; } /** * 通过ID得到课程信息 * @param id * @return */ public Course getCourseById(int id) { String sql = "select * from course where id ='" + id + "'"; Connection conn = DBUtil.getConn(); Statement state = null; ResultSet rs = null; Course course = null; try { state = conn.createStatement(); rs = state.executeQuery(sql); while (rs.next()) { String name = rs.getString("name"); String teacher = rs.getString("teacher"); String classroom = rs.getString("classroom"); String date=rs.getString("date"); String size = rs.getString("size"); String amount = rs.getString("amount"); String out = rs.getString("out"); String give = rs.getString("give"); course = new Course( id,name, teacher, classroom,date,size,amount,out,give); } } catch (Exception e) { e.printStackTrace(); } finally { DBUtil.close(rs, state, conn); } return course; } /** * 通过name得到Course * @param name * @return */ public Course getCourseByName(String name) { String sql = "select * from course where name ='" + name + "'"; Connection conn = DBUtil.getConn(); Statement state = null; ResultSet rs = null; Course course = null; try { state = conn.createStatement(); rs = state.executeQuery(sql); while (rs.next()) { int id = rs.getInt("id"); String teacher = rs.getString("teacher"); String classroom = rs.getString("classroom"); String date=rs.getString("date"); String size = rs.getString("size"); String amount = rs.getString("amount"); String out = rs.getString("out"); String give = rs.getString("give"); course = new Course(id, name, teacher, classroom,date,size,amount,out,give); } } catch (Exception e) { e.printStackTrace(); } finally { DBUtil.close(rs, state, conn); } return course; } /** * 查找 * @param name * @param teacher * @param classroom * @return */ public List<Course> search(String name, String teacher, String classroom,String date,String size,String amount,String out,String give) { String sql = "select * from course where "; if (name != "") { sql += "name like '%" + name + "%'"; } if (teacher != "") { sql += "teacher like '%" + teacher + "%'"; } if (classroom != "") { sql += "classroom like '%" + classroom + "%'"; } if (date != "") { sql += "date like '%" + date + "%'"; } if (size != "") { sql += "size like '%" + size + "%'"; } if (amount != "") { sql += "amount like '%" + amount + "%'"; } if (out != "") { sql += "out like '%" + out + "%'"; } if (give != "") { sql += "give like '%" + give + "%'"; } List<Course> list = new ArrayList<>(); Connection conn = DBUtil.getConn(); Statement state = null; ResultSet rs = null; try { state = conn.createStatement(); rs = state.executeQuery(sql); Course bean = null; while (rs.next()) { int id = rs.getInt("id"); String name2 = rs.getString("name"); String teacher2 = rs.getString("teacher"); String classroom2 = rs.getString("classroom"); String date2=rs.getString("date"); String size2 = rs.getString("size"); String amount2 = rs.getString("amount"); String out2 = rs.getString("out"); String give2 = rs.getString("give"); bean = new Course(id, name2, teacher2, classroom2,date2,size2,amount2,out2,give2); list.add(bean); } } catch (SQLException e) { e.printStackTrace(); } finally { DBUtil.close(rs, state, conn); } return list; } /** * 全部数据 * @param name * @param teacher * @param classroom * @return */ public List<Course> list() { String sql = "select * from course"; List<Course> list = new ArrayList<>(); Connection conn = DBUtil.getConn(); Statement state = null; ResultSet rs = null; try { state = conn.createStatement(); rs = state.executeQuery(sql); Course bean = null; while (rs.next()) { int id = rs.getInt("id"); String name2 = rs.getString("name"); String teacher2 = rs.getString("teacher"); String classroom2 = rs.getString("classroom"); String date2=rs.getString("date2"); String size2 = rs.getString("size2"); String amount2 = rs.getString("amount2"); String out2 = rs.getString("out2"); String give2 = rs.getString("give2"); bean = new Course(id, name2, teacher2, classroom2,date2,size2,amount2,out2,give2); list.add(bean); } } catch (SQLException e) { e.printStackTrace(); } finally { DBUtil.close(rs, state, conn); } return list; } }
entity
package com.hjf.entity; public class Course { private int id; private String name; private String teacher; private String classroom; private String date;//入库时间 private String size;//规格 private String amount; private String out;//出库时间 private String give;//送货人姓名 public int getId() { return id; } public void setId(int id) { this.id = id; } public String getdate() { return date; } public void setdate(String date) { this.date=date; } public String getsize() { return size; } public void setsize(String size) { this.size=size; } public String getamount() { return amount; } public void setamount(String amount) { this.amount=amount; } public String getout() { return out; } public void setout(String out) { this.out=out; } public String getgive() { return give; } public void setgive(String give) { this.give=give; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getTeacher() { return teacher; } public void setTeacher(String teacher) { this.teacher = teacher; } public String getClassroom() { return classroom; } public void setClassroom(String classroom) { this.classroom = classroom; } public Course() {} public Course(int id, String name, String teacher, String classroom,String date,String size,String amount,String out,String give) { this.id = id; this.name = name; this.teacher = teacher; this.classroom = classroom; this.date=date; this.size=size; this.amount=amount; this.out=out; this.give=give; } public Course(String name, String teacher, String classroom,String date,String size,String amount,String out,String give) { this.name = name; this.teacher = teacher; this.classroom = classroom; this.date=date; this.size=size; this.amount=amount; this.out=out; this.give=give; } }
service
package com.hjf.service; import java.util.List; import com.hjf.dao.CourseDao; import com.hjf.entity.Course; /** * CourseService * 服务层 * @author Hu * */ public class CourseService { CourseDao cDao = new CourseDao(); /** * 添加 * @param course * @return */ public boolean add(Course course) { boolean f = false; if(!cDao.name(course.getName())) { cDao.add(course); f = true; } return f; } /** * 删除 */ public void del(int id) { cDao.delete(id); } /** * 修改 * @return */ public void update(Course course) { cDao.update(course); } /** * 通过ID得到一个Course * @return */ public Course getCourseById(int id) { return cDao.getCourseById(id); } /** * 通过Name得到一个Course * @return */ public Course getCourseByName(String name) { return cDao.getCourseByName(name); } /** * 查找 * @return */ public List<Course> search(String name, String teacher, String classroom,String date,String size,String amount,String out,String give) { return cDao.search(name, teacher, classroom,date,size,amount,out,give); } /** * 全部数据 * @return */ public List<Course> list() { return cDao.list(); } }
servlet
package com.hjf.servlet; import java.io.IOException; import java.util.List; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.hjf.entity.Course; import com.hjf.service.CourseService; @WebServlet("/CourseServlet") public class CourseServlet extends HttpServlet { private static final long serialVersionUID = 1L; CourseService service = new CourseService(); /** * 方法选择 */ protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { req.setCharacterEncoding("utf-8"); String method = req.getParameter("method"); if ("add".equals(method)) { add(req, resp); } else if ("del".equals(method)) { del(req, resp); } else if ("update".equals(method)) { update(req, resp); } else if ("search".equals(method)) { search(req, resp); } else if ("getcoursebyid".equals(method)) { getCourseById(req, resp); } else if ("getcoursebyname".equals(method)) { getCourseByName(req, resp); } else if ("list".equals(method)) { list(req, resp); } } /** * 添加 * @param req * @param resp * @throws IOException * @throws ServletException */ private void add(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException { req.setCharacterEncoding("utf-8"); //获取数据 String name = req.getParameter("name"); String teacher = req.getParameter("teacher"); String classroom = req.getParameter("classroom"); String date = req.getParameter("date"); String size = req.getParameter("size"); String amount = req.getParameter("amount"); String out = req.getParameter("out"); String give = req.getParameter("give"); Course course = new Course(name, teacher, classroom,date,size,amount,out,give); //添加后消息显示 if(service.add(course)) { req.setAttribute("message", "添加成功"); req.getRequestDispatcher("add.jsp").forward(req,resp); } else { req.setAttribute("message", "商品名称重复，请重新录入"); req.getRequestDispatcher("add.jsp").forward(req,resp); } } /** * 全部 * @param req * @param resp * @throws ServletException */ private void list(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{ req.setCharacterEncoding("utf-8"); List<Course> courses = service.list(); req.setAttribute("courses", courses); req.getRequestDispatcher("list.jsp").forward(req,resp); } /** * 通过ID得到Course * @param req * @param resp * @throws ServletException */ private void getCourseById(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{ req.setCharacterEncoding("utf-8"); int id = Integer.parseInt(req.getParameter("id")); Course course = service.getCourseById(id); req.setAttribute("course", course); req.getRequestDispatcher("detail2.jsp").forward(req,resp); } /** * 通过名字查找 * 跳转至删除 * @param req * @param resp * @throws IOException * @throws ServletException */ private void getCourseByName(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{ req.setCharacterEncoding("utf-8"); String name = req.getParameter("name"); Course course = service.getCourseByName(name); if(course == null) { req.setAttribute("message", "查无此物资！"); req.getRequestDispatcher("del.jsp").forward(req,resp); } else { req.setAttribute("course", course); req.getRequestDispatcher("detail.jsp").forward(req,resp); } } /** * 删除 * @param req * @param resp * @throws IOException * @throws ServletException */ private void del(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{ req.setCharacterEncoding("utf-8"); int id = Integer.parseInt(req.getParameter("id")); service.del(id); req.setAttribute("message", "删除成功！"); req.getRequestDispatcher("del.jsp").forward(req,resp); } /** * 修改 * @param req * @param resp * @throws IOException * @throws ServletException */ private void update(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{ req.setCharacterEncoding("utf-8"); int id = Integer.parseInt(req.getParameter("id")); String name = req.getParameter("name"); String teacher = req.getParameter("teacher"); String classroom = req.getParameter("classroom"); String date = req.getParameter("date"); String size = req.getParameter("size"); String amount = req.getParameter("amount"); String out = req.getParameter("out"); String give = req.getParameter("give"); Course course = new Course(id, name, teacher, classroom,date,size,amount,out,give); service.update(course); req.setAttribute("message", "修改成功"); req.getRequestDispatcher("CourseServlet?method=list").forward(req,resp); } /** * 查找 * @param req * @param resp * @throws ServletException */ private void search(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{ req.setCharacterEncoding("utf-8"); String name = req.getParameter("name"); String teacher = req.getParameter("teacher"); String classroom = req.getParameter("classroom"); String date = req.getParameter("date"); String size = req.getParameter("size"); String amount = req.getParameter("amount"); String out = req.getParameter("out"); String give = req.getParameter("give"); List<Course> courses = service.search(name, teacher, classroom,date,size,amount,out,give); req.setAttribute("courses", courses); req.getRequestDispatcher("searchlist.jsp").forward(req,resp); } }
util
package com.hjf.util; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; /** * 数据库连接工具 * @author Hu * */ public class DBUtil { public static String db_url = "jdbc:mysql://localhost:3306/course"; public static String db_user = "root"; public static String db_pass = "root"; public static Connection getConn () { Connection conn = null; try { Class.forName("com.mysql.jdbc.Driver");//加载驱动 conn = DriverManager.getConnection(db_url, db_user, db_pass); } catch (Exception e) { e.printStackTrace(); } return conn; } /** * 关闭连接 * @param state * @param conn */ public static void close (Statement state, Connection conn) { if (state != null) { try { state.close(); } catch (SQLException e) { e.printStackTrace(); } } if (conn != null) { try { conn.close(); } catch (SQLException e) { e.printStackTrace(); } } } public static void close (ResultSet rs, Statement state, Connection conn) { if (rs != null) { try { rs.close(); } catch (SQLException e) { e.printStackTrace(); } } if (state != null) { try { state.close(); } catch (SQLException e) { e.printStackTrace(); } } if (conn != null) { try { conn.close(); } catch (SQLException e) { e.printStackTrace(); } } } public static void main(String[] args) throws SQLException { Connection conn = getConn(); PreparedStatement pstmt = null; ResultSet rs = null; String sql ="select * from course"; pstmt = conn.prepareStatement(sql); rs = pstmt.executeQuery(); if(rs.next()){ System.out.println("空"); }else{ System.out.println("不空"); } } }
add.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% Object message = request.getAttribute("message"); if(message!=null && !"".equals(message)){ %> <script type="text/javascript"> alert("<%=request.getAttribute("message")%>"); </script> <%} %> <div align="center"> <h1 style="color: black;">库存物资录入</h1> <a href="index.jsp">返回主页</a> <form action="CourseServlet?method=add" method="post" onsubmit="return check()"> <div class="a"> 物资名称<input type="text" id="name" name="name"/> </div> <div class="a"> 生产厂家<input type="text" id="teacher" name="teacher" /> </div> <div class="a"> 型号<input type="text" id="classroom" name="classroom" /> </div> <div class="a"> 入库日期<input type="text" id="date" name="date" /> </div> <div class="a"> 规格<input type="text" id="size" name="size" /> </div> <div class="a"> 数量<input type="text" id="amount" name="amount" /> </div> <div class="a"> 送货人<input type="text" id="give" name="give" /> </div> <div class="a"> 出库日期<input type="text" id="out" name="out" /> </div> <div class="a"> <button type="submit" class="b">保 存</button> </div> </form> </div> <script type="text/javascript"> function check() { var name = document.getElementById("name");; var teacher = document.getElementById("teacher"); var classroom = document.getElementById("classroom"); var date = document.getElementById("date"); var size = document.getElementById("size"); var amount = document.getElementById("amount"); var out = document.getElementById("out"); var give = document.getElementById("give"); //非空 if(name.value == '') { alert('物资名称为空'); name.focus(); return false; } if(teacher.value == '') { alert('生产厂家为空'); teacher.focus(); return false; } if(teacher.value == '') { alert('入库日期为空'); teacher.focus(); return false; } if(classroom.value == '') { alert('型号为空'); classroom.focus(); return false; } if(date.value == '') { alert('型号为空'); date.focus(); return false; } if(size.value == '') { alert('型号为空'); size.focus(); return false; } if(amount.value == '') { alert('型号为空'); amount.focus(); return false; } if(out.value == '') { alert('型号为空'); out.focus(); return false; } if(give.value == '') { alert('型号为空'); give.focus(); return false; } } </script> </body> </html>
del.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% Object message = request.getAttribute("message"); if(message!=null && !"".equals(message)){ %> <script type="text/javascript"> alert("<%=request.getAttribute("message")%>"); </script> <%} %> <div align="center"> <h1 style="color: black;">物资信息删除</h1> <a href="index.jsp">返回主页</a> <form action="CourseServlet?method=getcoursebyname" method="post" onsubmit="return check()"> <div class="a"> 物资名称<input type="text" id="name" name="name"/> </div> <div class="a"> <button type="submit" class="b">查 找</button> </div> </form> </div> <script type="text/javascript"> function check() { var name = document.getElementById("name");; //非空 if(name.value == '') { alert('物资名称为空'); name.focus(); return false; } } </script> </body> </html>
detail.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> <style> .a{ margin-top: 20px; } .b{ font-size: 20px; 160px; color: white; background-color: greenyellow; } .tb, td { border: 1px solid black; font-size: 22px; } </style> </head> <body> <div align="center"> <h1 style="color: black;">物资信息删除</h1> <a href="index.jsp">返回主页</a> <table class="tb"> <tr> <td>物资名称</td> <td>${course.name}</td> </tr> <tr> <td>生产厂家</td> <td>${course.teacher}</td> </tr> <tr> <td>型号</td> <td>${course.classroom}</td> </tr> <tr> <td>入库日期</td> <td>${course.date}</td> </tr> <tr> <td>规格</td> <td>${course.size}</td> </tr> <tr> <td>数量</td> <td>${course.amount}</td> </tr> <tr> <td>出库日期</td> <td>${course.out}</td> </tr> <tr> <td>送货人</td> <td>${course.give}</td> </tr> </table> <div class="a"> <a onclick="return check()" href="CourseServlet?method=del&id=${course.id}">删 除</a> </div> </div> <script type="text/javascript"> function check() { if (confirm("真的要删除吗？")){ return true; }else{ return false; } } </script> </body> </html>
detail2.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% Object message = request.getAttribute("message"); if(message!=null && !"".equals(message)){ %> <script type="text/javascript"> alert("<%=request.getAttribute("message")%>"); </script> <%} %> <div align="center"> <h1 style="color: black;">物资信息修改</h1> <a href="index.jsp">返回主页</a> <form action="CourseServlet?method=update" method="post" onsubmit="return check()"> <div class="a"> 物资名称<input type="text" id="name" name="name" value="${course.name}"/> </div> <div class="a"> 生产厂家<input type="text" id="teacher" name="teacher" value="${course.teacher}"/> </div> <div class="a"> 型号<input type="text" id="classroom" name="classroom" value="${course.classroom}"/> </div> <div class="a"> 入库日期<input type="text" id="date" name="date" value="${course.date}"/> </div> <div class="a"> 规格<input type="text" id="size" name="size" value="${course.size}"/> </div> <div class="a"> 数量<input type="text" id="amount" name="amount" value="${course.amount}"/> </div> <div class="a"> 出库日期<input type="text" id="out" name="out" value="${course.out}"/> </div> <div class="a"> 送货人<input type="text" id="give" name="give" value="${course.give}"/> </div> <input type="hidden" id="id" name="id" value="${course.id}"/> <div class="a"> <button type="submit" class="b">修 改</button> </div> </form> </div> <script type="text/javascript"> function check() { var name = document.getElementById("name");; var teacher = document.getElementById("teacher"); var classroom = document.getElementById("classroom"); var date = document.getElementById("date"); var size = document.getElementById("size"); var amount = document.getElementById("amount"); var out = document.getElementById("out"); var give = document.getElementById("give"); //非空 if(name.value == '') { alert('物资名称为空'); name.focus(); return false; } if(teacher.value == '') { alert('生产厂家为空'); teacher.focus(); return false; } if(classroom.value == '') { alert('型号为空'); classroom.focus(); return false; } if(date.value == '') { alert('入库日期为空'); classroom.focus(); return false; } if(size.value == '') { alert('规格为空'); size.focus(); return false; } if(amount.value == '') { alert('数量为空'); amount.focus(); return false; } if(out.value == '') { alert('出库日期为空'); out.focus(); return false; } if(give.value == '') { alert('送货人为空'); give.focus(); return false; } } </script> </body> </html>
index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>首页</title> </head> <body> <div align="center"> <div class="a"> <a href="add.jsp">库存物资添加</a> </div> <div class="a"> <a href="CourseServlet?method=list">库存物资修改</a> </div> <div class="a"> <a href="del.jsp">库存物资删除</a> </div> <div class="a"> <a href="search.jsp">库存物资查询</a> </div> </div> </body> </html>
list.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <% Object message = request.getAttribute("message"); if(message!=null && !"".equals(message)){ %> <script type="text/javascript"> alert("<%=request.getAttribute("message")%>"); </script> <%} %> <div align="center"> <h1 style="color: black;">物资信息列表</h1> <a href="index.jsp">返回主页</a> <table class="tb"> <tr> <td>id</td> <td>物资名称</td> <td>生产厂家</td> <td>型号</td> <td>入库日期</td> <td>规格</td> <td>数量</td> <td>出库日期</td> <td>送货人</td> <td align="center" colspan="2">操作</td> </tr> <c:forEach items="${courses}" var="item"> <tr> <td>${item.id}</td> <td>${item.name}</td> <td>${item.teacher}</td> <td>${item.classroom}</td> <td>${item.date}</td> <td>${item.size}</td> <td>${item.amount}</td> <td>${item.out}</td> <td>${item.give}</td> <td><a href="CourseServlet?method=getcoursebyid&id=${item.id}">修改</a></td> </tr> </c:forEach> </table> </div> </body> </html>
search.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <div align="center"> <h1 style="color: black;">物资信息查询</h1> <a href="index.jsp">返回主页</a> <form action="CourseServlet?method=search" method="post" onsubmit="return check()"> <div class="a"> 物资名称<input type="text" id="name" name="name"/> </div> <div class="a"> 生产厂家<input type="text" id="teacher" name="teacher" /> </div> <div class="a"> 型号<input type="text" id="classroom" name="classroom" /> </div> <div class="a"> 入库日期<input type="text" id="date" name="date" /> </div> <div class="a"> 规格<input type="text" id="size" name="size" /> </div> <div class="a"> 数量<input type="text" id="amount" name="amount" /> </div> <div class="a"> 送货人<input type="text" id="give" name="give" /> </div> <div class="a"> 出库日期<input type="text" id="out" name="out" /> </div> <div class="a"> <button type="submit" class="b">查 询</button> </div> </form> </div> <script type="text/javascript"> function check() { var name = document.getElementById("name"); var teacher = document.getElementById("teacher"); var classroom = document.getElementById("classroom"); var date = document.getElementById("date"); var size = document.getElementById("size"); var amount = document.getElementById("amount"); var out = document.getElementById("out"); var give = document.getElementById("give"); //非空 if(name.value == '' && teacher.value == '' && classroom.value == ''&&date.value==''&&size.value==''&&amount.value==''&&out.value==''&&give.value=='') { alert('请填写一个条件'); return false; } } </script> </body> </html>
searchlist.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <div align="center"> <h1 style="color: black;">物资信息列表</h1> <a href="index.jsp">返回主页</a> <table class="tb"> <tr> <td>id</td> <td>物资名称</td> <td>生产厂家</td> <td>型号</td> <td>入库日期</td> <td>规格</td> <td>数量</td> <td>出库日期</td> <td>送货人</td> </tr> <!-- forEach遍历出adminBeans --> <c:forEach items="${courses}" var="item" varStatus="status"> <tr> <td>${item.id}</td> <td><a>${item.name}</a></td> <td>${item.teacher}</td> <td>${item.classroom}</td> <td>${item.date}</td> <td>${item.size}</td> <td>${item.amount}</td> <td>${item.out}</td> <td>${item.give}</td> </tr> </c:forEach> </table> </div> </body> </html>