java web石家庄铁道大学课程管理系统

package kecheng

Kc.java

 package kecheng;

 public class Kc {

     private int id;

     private String classname;

     private String teachername;

     private String place;

     public String getClassname() {

         return classname;

     }

     public void setClassname(String classname) {

         this.classname = classname;

     }

     public int getId() {

         return id;

     }

     public void setId(int id) {

         this.id = id;

     }

     public String getTeachername() {

         return teachername;

     }

     public void setTeachername(String teachername) {

         this.teachername = teachername;

     }

     public String getPlace() {

         return place;

     }

     public void setPlace(String place) {

         this.place = place;

     }

 }

Mysqlopear.java

 package kecheng;

 import java.sql.*;

 public class Mysqlopear {

     private String driverStr="com.mysql.cj.jdbc.Driver";

     private String connStr="jdbc:mysql://127.0.0.1:3306/db_database17?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT";

     private String dbusername="root";

     private String dbpassword="123456";

     private Connection conn=null;

     private Statement stmt=null;

     public Connection getCon() {

         try {

             Class.forName(driverStr);

             conn=DriverManager.getConnection(connStr, dbusername, dbpassword);

             return conn;

         } catch (Exception e) {

             System.out.println("数据连接失败！");

             System.out.println(e.getMessage());

             return null;

         }

     }

     public int executeUpdate(String s) {

         int result=0;

         System.out.println("更新语句："+s+"\n");

         try {

             result=stmt.executeUpdate(s);

         }catch(Exception e) {

             System.out.println("执行更新错误！");

         }

         return result;

     }

     //查询操作

     public ResultSet executeQuery(String s) {

         ResultSet rs=null;

         System.out.println("查询语句:"+s+"\n");

         try {

             rs=stmt.executeQuery(s);

             while(rs.next()) {

                 System.out.println("课程名称："+rs.getString(1)+"  "+"教师名称："+rs.getString(2)+"  "+"教室位置："+rs.getString(3));

             }

         }catch(Exception e) {

             System.out.println("执行查询错误！");

         }

         return rs;

     }

     public void close() {

         try {

             stmt.close();

             conn.close();

         }catch(Exception e) {

         }

     }

 }

package service

Kcservice.java

 package service;

 import java.sql.Connection;

 import java.sql.PreparedStatement;

 import java.sql.ResultSet;

 import java.sql.SQLException;

 import java.util.ArrayList;

 import java.util.List;

 import kecheng.Kc;

 public class Kcservice {

     private Connection conn;

     private PreparedStatement pstmt;

     public Kcservice() {

         conn=new kecheng.Mysqlopear().getCon();

     }

     //录入部分

         public boolean addStu(Kc kc){

             try {

                 pstmt=conn.prepareStatement("insert into kc"

             +"(classname,teachername,place)"

                         +"values(?,?,?)");

                 pstmt.setString(1, kc.getClassname());

                 pstmt.setString(2, kc.getTeachername());

                 pstmt.setString(3, kc.getPlace());

                 pstmt.executeUpdate();

                 return true;

             } catch (SQLException e) {

                 e.printStackTrace();

                 return false;

             }

         }

         public Kc queryStuByID(int id) {

             try {

                 pstmt=conn.prepareStatement("select * from kc where id=?");

                 pstmt.setInt(1, id);

                 ResultSet rs=pstmt.executeQuery();

                 if(rs.next()) {

                     Kc stu=new Kc();

                     stu.setId(rs.getInt(1));

                     stu.setClassname(rs.getString(2));

                     stu.setTeachername(rs.getString(3));

                     stu.setPlace(rs.getString(4));

                     return stu;

                 }

                 return null;

             }

             catch(SQLException e) {

                 e.printStackTrace();

                 return null;

             }

         }

         public List queryAllStu() {

             List stus=new ArrayList();

             try {

                 pstmt=conn.prepareStatement("select * from kc");

                 ResultSet rs=pstmt.executeQuery();

                 while(rs.next()) {

                     Kc stu=new Kc();

                     stu.setId(rs.getInt(1));

                     stu.setClassname(rs.getString(2));

                     stu.setTeachername(rs.getString(3));

                     stu.setPlace(rs.getString(4));

                     stus.add(stu);

                 }

                 return stus;

             }

             catch(SQLException e) {

                 e.printStackTrace();

                 return null;

             }

         }

         public boolean updateStu(Kc kc) {

             try {

                     pstmt=conn.prepareStatement("update kc set classname=?,teachername=?,place=? where id=? ");

                     pstmt.setString(1, kc.getClassname());

                     pstmt.setString(2, kc.getTeachername());

                     pstmt.setString(3, kc.getPlace());

                     pstmt.setInt(4, kc.getId());

                     pstmt.executeUpdate();

                 return true;

             }catch(Exception e) {

                 e.printStackTrace();

                 return false;

             }

         }

         //删除部分

         public boolean deleteStu(int id) {

             try {

                 pstmt=conn.prepareStatement("delete from kc where id=?");

                 pstmt.setInt(1, id);

                 pstmt.executeUpdate();

                 return true;

             }catch(Exception e) {

                 e.printStackTrace();

                 return false;

             }

         }

 }

框架：main.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>

 <frameset rows="18%,*">

 <frame src="title.jsp">

 <frameset cols="10%,*">

 <frame src="main_left.jsp">

 <frame src="main_right.jsp" name="main_right">

 </frameset>

 <body>

 </body>

 </html>

左侧菜单：main_left.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>

 <a href="tianjia.jsp" target="main_right">录入学生信息</a><br/>

 <a href="chaxun.jsp" target="main_right">查看学生信息</a><br/>

 <a href="xiugai.jsp" target="main_right">修改学生信息</a><br/>

 <a href="shanchu.jsp" target="main_right">删除学生信息</a><br/>

 </body>

 </html>

右侧界面：main_right.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>

 </body>

 </html>

标题：title.jsp

 <%@ page language="java" contentType="text/html; charset=UTF-8"

     pageEncoding="UTF-8"%>

 <!DOCTYPE html>

 <html>

 <head>

 <meta charset="UTF-8">

 <title>石家庄铁道大学课程信息管理系统</title>

 </head>

 <body>

 <center>

 <h1>石家庄铁道大学课程信息管理系统</h1>

 </center>

 </body>

 </html>

添加新课程：tianjia.jsp

 <%@ page language="java" contentType="text/html; charset=UTF-8"

     pageEncoding="UTF-8"%>

 <!DOCTYPE html>

 <html>

 <head>

 <meta charset="UTF-8">

 <title>添加新课程页</title>

 </head>

 <body>

 <h1 style=color:red>添加新课程</h1>

 <form  action="tj_result.jsp"method="post">

 <table>

 <tr>

 <td>课程名称:</td>

 <td><input type="text"name="classname"></td>

 </tr>

 <tr>

 <td>任课教师:</td>

 <td><input type="text"name="teachername"></td>

 </tr>

 <tr>

 <td>上课地点:</td>

 <td><input type="text"name="place"></td>

 </tr>

 </table>

 <br>

 <input type="submit" value="保存">

 </form>

 </body>

 </html>

添加处理：tj_result.jsp

 <%@ page language="java" contentType="text/html; charset=UTF-8"

     pageEncoding="UTF-8"%>

 <!DOCTYPE html>

 <html>

 <head>

 <meta charset="UTF-8">

 <title>添加处理</title>

 </head>

 <body>

 <% request.setCharacterEncoding("utf-8"); %>

 <jsp:useBean id="kc" class="kecheng.Kc" ></jsp:useBean>

 <jsp:useBean id="kcservice" class="service.Kcservice"></jsp:useBean>

 <jsp:setProperty property="*" name="kc"/>

 <%

 if(!(kc.getTeachername().equals("王建民")||kc.getTeachername().equals("刘丹")

         ||kc.getTeachername().equals("刘立嘉")||kc.getTeachername().equals("王辉")

         ||kc.getTeachername().equals("杨子光"))){

     out.print("<script language='javaScript'> alert('教师姓名非法');</script>");

     response.setHeader("refresh", "0;url=tianjia.jsp");

 }

 else{

 if(kcservice.addStu(kc))

     out.print("success");

 else

     out.print("error");}

 %>

 </body>

 </html>

删除：shanchu.jsp

 <%@page import="kecheng.Kc"%>

 <%@page import="java.util.Iterator"%>

 <%@page import="java.util.List"%>

 <%@ page language="java" contentType="text/html; charset=UTF-8"

     pageEncoding="UTF-8"%>

 <!DOCTYPE html>

 <html>

 <head>

 <meta charset="UTF-8">

 <title>删除课程</title>

 </head>

 <body>

 <jsp:useBean id="stuSer" class="service.Kcservice"></jsp:useBean>

 <%

 List stus=stuSer.queryAllStu();

 //out.print(stus.size());

 Iterator iter=stus.iterator();

 %>

 <table>

 <tr> <td>ID  </td> <td>课程姓名    </td> <td>教师姓名</td><td>上课地点</td>  </tr>

 <%

 int i=0;

 while(iter.hasNext())

 {

     Kc kc=(Kc)iter.next();

     %>

     <tr <%if(i%2==0){ %>bgcolor="#F0F8FF"<%} %>>

     <td> <%=kc.getId() %></td>

     <td> <%=kc.getClassname() %></td>

     <td> <%=kc.getTeachername()%></td>

     <td> <%=kc.getPlace()%></td>

     <td> <a href="sc_result.jsp?id=<%=kc.getId() %>">删除</a></td>

     </tr>

     <%

     i++;

 }

 %>

 </table>

 </body>

 </html>

删除处理：sc_result.jsp

 <%@page import="kecheng.Kc"%>

 <%@ page language="java" contentType="text/html; charset=UTF-8"

     pageEncoding="UTF-8"%>

 <!DOCTYPE html>

 <html>

 <head>

 <meta charset="UTF-8">

 <title>删除处理</title>

 </head>

 <body>

 <jsp:useBean id="stuSer" class="service.Kcservice"></jsp:useBean>

 <%

 int id=Integer.parseInt(request.getParameter("id"));

 Kc stu=stuSer.queryStuByID(id);

 if(stuSer.deleteStu(id))

     out.print("success");

 else

     out.print("false");

 %>

 </body>

 </html>

修改：xuigai.jsp

 <%@page import="kecheng.Kc"%>

 <%@page import="java.util.Iterator"%>

 <%@page import="java.util.List"%>

 <%@ page language="java" contentType="text/html; charset=UTF-8"

     pageEncoding="UTF-8"%>

 <!DOCTYPE html>

 <html>

 <head>

 <meta charset="UTF-8">

 <title>修改</title>

 </head>

 <body>

 <jsp:useBean id="stuSer" class="service.Kcservice"></jsp:useBean>

 <%

 List stus=stuSer.queryAllStu();

 Iterator iter=stus.iterator();

 %>

 <table>

 <tr> <td>ID  </td> <td>课程姓名    </td> <td>教师姓名</td><td>上课地点</td>  </tr>

 <%

 int i=0;

 while(iter.hasNext())

 {

     Kc kc=(Kc)iter.next();

     %>

     <tr <%if(i%2==0){ %>bgcolor="#F0F8FF"<%} %>>

     <td> <%=kc.getId() %></td>

     <td> <%=kc.getClassname() %></td>

     <td> <%=kc.getTeachername()%></td>

     <td> <%=kc.getPlace()%></td>

     <td> <a href="修改处理.jsp?id=<%=kc.getId() %>">修改</a></td>

     </tr>

     <%

     i++;

 }

 %>

 </table>

 </body>

 </html>

修改处理：xg_result.jsp

 <%@page import="kecheng.Kc"%>

 <%@ page language="java" contentType="text/html; charset=UTF-8"

     pageEncoding="UTF-8"%>

 <!DOCTYPE html>

 <html>

 <head>

 <meta charset="UTF-8">

 <title>修改处理</title>

 </head>

 <body>

 <jsp:useBean id="stuSer" class="service.Kcservice"></jsp:useBean>

 <%

 int id=Integer.parseInt(request.getParameter("id"));

 Kc stu=stuSer.queryStuByID(id);

 %>

 <form action="xg_0.jsp" method="post">

 <table>

 <tr><td colspan="2">修改学生信息</td></tr>

 <tr>

       <td><input type="hidden" name="id" value="<%=stu.getId()%>"/></td>

 </tr>

 <tr>

       <td>课程名称</td>

       <td><input type="text" name="classname" value="<%=stu.getClassname()%>"/></td>

 </tr>

 <tr>

      <td>教师姓名</td>

      <td><input type="text" name="teachername" value="<%=stu.getTeachername()%>"/></td>

 </tr>

 <tr>

       <td>上课地点</td>

      <td><input type="text" name="place" value="<%=stu.getPlace()%>"/></td>

 </tr>

 <tr>

 <td align="center" colspan="2">

 <input type="submit" value="提交">

 <input type="reset" value="重置">

 </tr>

 </table>

 </form>

 </body>

 </html>

修改结果：xg_0.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>

 <% request.setCharacterEncoding("utf-8"); %>

 <jsp:useBean id="kc" class="kecheng.Kc" ></jsp:useBean>

 <jsp:useBean id="kcservice" class="service.Kcservice"></jsp:useBean>

 <jsp:setProperty property="*" name="kc"/>

 <%

 if(kcservice.updateStu(kc))

     out.print("success");

 else

     out.print("error");

 %>

 </body>

 </html>

查询：chaxun.jsp

 <%@page import="kecheng.Kc"%>

 <%@page import="java.util.Iterator"%>

 <%@page import="java.util.List"%>

 <%@ page language="java" contentType="text/html; charset=UTF-8"

     pageEncoding="UTF-8"%>

 <!DOCTYPE html>

 <html>

 <head>

 <meta charset="UTF-8">

 <title>查询</title>

 </head>

 <body>

 <jsp:useBean id="stuSer" class="service.Kcservice"></jsp:useBean>

 <%

 List stus=stuSer.queryAllStu();

 //out.print(stus.size());

 Iterator iter=stus.iterator();

 %>

 <table>

 <tr> <td>ID  </td> <td>课程姓名    </td> <td>教师姓名</td><td>上课地点</td>  </tr>

 <%

 int i=0;

 while(iter.hasNext())

 {

     Kc kc=(Kc)iter.next();

     %>

     <tr <%if(i%2==0){ %>bgcolor="#F0F8FF"<%} %>>

     <td> <%=kc.getId() %></td>

     <td> <%=kc.getClassname() %></td>

     <td> <%=kc.getTeachername()%></td>

     <td> <%=kc.getPlace()%></td>

     </tr>

     <%

     i++;

 }

 %>

 </table>

 </body>

 </html>

数据库的表：

运行结果：

程序首界面：

添加：

查看：

修改：

删除：

数据库：

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