java web 增加信息课堂测试00

按照图片要求设计添加新课程界面。（0.5分）
在后台数据库中建立相应的表结构存储课程信息。（0.5分）
实现新课程添加的功能。
要求判断任课教师为王建民、刘立嘉、刘丹、王辉、杨子光五位教师的其中一位。（0.5分）
要求上课地点开头为“一教、二教、三教、基教”中的一种。（0.5分）
实现数据存储功能。（3分）

设计思想：绘制jsp界面 、编写功能类、信息类、工具类、连接数据库，利用传参取到web界面的输入内容添加到数据库。

根据输入内容与要求判断的老师、地点对比判断。  查重课程： 从数据库中取值与键入web文本框内容对比，内容全部相同则存在课程。

源代码：

声明类

 public class test {
     private String name;
     private String teacher;
     private String area;
     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 getArea() {
         return area;
     }
     public void setArea(String area) {
         this.area = area;
     }
 }

接口

 import studytest.model.test;

 public interface  Itest {
     public void add(test test);
 }

数据库工具类

 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;

 public class DBUtil {
     public static Connection getConnection() {
             try {
                 Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
             } catch (ClassNotFoundException e1) {
                 // TODO Auto-generated catch block
                 e1.printStackTrace();
             }

         String user="liu";
         String password="980130";
         String url="jdbc:sqlserver://localhost:1433; DatabaseName=Student";
         Connection connection =null;

                 try {
                     connection=DriverManager.getConnection(url, user, password);
                 } catch (SQLException e1) {
                     // TODO Auto-generated catch block
                     e1.printStackTrace();
                 }

         return connection;

     }
     //�ر���Դ
     public static void close(PreparedStatement preparedStatement) {

              try {
                  if( preparedStatement !=null) {
                 preparedStatement.close();
                  }
             } catch (SQLException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
             }
     }

     public static void close(ResultSet resultSet)  {

             try {
                 if(resultSet!= null) {
                 resultSet.close();
             }
             } catch (SQLException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
             }
     }

     public static void close(Connection connection) {
         // TODO Auto-generated method stub

             try {
                 if(connection!=null) {
                 connection.close();
                 }
                 } catch (SQLException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
             }
     }
 }

123

 

 

 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;

 public class DBUtil {
     public static Connection getConnection() {
             try {
                 Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
             } catch (ClassNotFoundException e1) {
                 // TODO Auto-generated catch block
                 e1.printStackTrace();
             }

         String user="**";
         String password="****";
         String url="jdbc:sqlserver://localhost:1433; DatabaseName=Student";
         Connection connection =null;

                 try {
                     connection=DriverManager.getConnection(url, user, password);
                 } catch (SQLException e1) {
                     // TODO Auto-generated catch block
                     e1.printStackTrace();
                 }

         return connection;

     }
     //�ر���Դ
     public static void close(PreparedStatement preparedStatement) {

              try {
                  if( preparedStatement !=null) {
                 preparedStatement.close();
                  }
             } catch (SQLException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
             }
     }

     public static void close(ResultSet resultSet)  {

             try {
                 if(resultSet!= null) {
                 resultSet.close();
             }
             } catch (SQLException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
             }
     }

     public static void close(Connection connection) {
         // TODO Auto-generated method stub

             try {
                 if(connection!=null) {
                 connection.close();
                 }
                 } catch (SQLException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
             }
     }
 }

异常处理类

 @SuppressWarnings("serial")
 public class testException extends RuntimeException {
     public testException() {
         super();
         // TODO Auto-generated constructor stub
     }

     public testException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
         super(message, cause, enableSuppression, writableStackTrace);
         // TODO Auto-generated constructor stub
     }

     public testException(String message, Throwable cause) {
         super(message, cause);
         // TODO Auto-generated constructor stub
     }

     public testException(String message) {
         super(message);
         // TODO Auto-generated constructor stub
     }

     public testException(Throwable cause) {
         super(cause);
         // TODO Auto-generated constructor stub
     }

 }

add类

 <%@page import="studytest.Util.testException"%>
 <%@page import="studytest.dao.testdaoimpl"%>
 <%@page import="studytest.model.test"%>
 <%@ page language="java" contentType="text/html; charset=UTF-8"
     pageEncoding="UTF-8"%>
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>添加</title>
 </head>
 <body>
 <%
 //接收客户端传递过来的参数

     String name    = request.getParameter("name");
     name = new String(name.getBytes("ISO-8859-1"), "UTF-8");
     String teacher= request.getParameter("teacher");
     teacher = new String(teacher.getBytes("ISO-8859-1"), "UTF-8");
     String area    = request.getParameter("area");
     area= new String(area.getBytes("ISO-8859-1"), "UTF-8");
     //String[] tea={"王建民","刘立嘉","刘丹","杨辉","杨子光"};
     //String[] ar={"一教","二教","三教","基教"};
     test test=new test();
     test.setName(name);
     test.setTeacher(teacher);
     test.setArea(area);

     testdaoimpl testdao=new testdaoimpl();

     try{

         if((teacher.equals("王建民"))||(teacher.equals("刘立嘉"))||(teacher.equals("刘丹"))
                 ||(teacher.equals("王辉"))||(teacher.equals("杨子光")))
         {

             if((area.startsWith("基教"))||(area.startsWith("一教"))
             ||(area.startsWith("二教"))||(area.startsWith("三教"))){
                 testdao.add(test);
                 %>
                 <script type="text/javascript">
                 alert("课程添加成功！！");
                 </script>
                 <%
             }
         }
     else{
         %>
         <script type="text/javascript">
         alert("发生错误");
         </script>

             <%
         }

     }catch(testException e){
         %>
         <h2 style="color:red ; font-size:20px">发生错误 : <%=e.getMessage() %></h2>
         <%
         }
         %>

 </body>
 </html>

addinput

 <%@page import="java.util.Map"%>
 <%@page import="com.sun.org.apache.xalan.internal.xsltc.compiler.util.ErrorMsg"%>
 <%@ page language="java" contentType="text/html; charset=UTF-8"
     pageEncoding="UTF-8"%>
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
     <title>用户添加页面</title>
     <style>
 #header{
 background-color:#0000FF;
 color:white;
 text-align:left;
 padding:3px;
 }
 #section1{
 background-color:white;
 width:350px;
 text-align:center;
 margin: 0 auto;
 padding:10px;

 }
 </style>
 </head>
 <body bgcolor="pink" >
 <div id="header">
 <h1>用户注册</h1>
 </div>

 <br><br><br><br><br><br>
 <body>

     <form action="add.jsp" method="get">
         <table align="center" border="1" width="500">
             <tr>
                 <td>课程名称 : </td>
                 <td>
                     <input type="text" name="name" />

                 </td>
             </tr>
                 <tr>
                 <td>任课教师:</td>
                 <td>
                     <input type="text" name="teacher" />

             </tr>
             <tr>
                 <td>上课地点:</td>
                 <td>
                     <input type="text" name="area" />

                 </td>
             </tr>
             <tr align="center">
                 <td colspan="2">
                     <input type="submit"  style="background:#4DFFFF" value="保存" />
                 </td>
             </tr>
         </table>
     </form>
 </body>
 </html>

接口调用 连接数据库添加内容

 import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;

 import com.sun.xml.internal.bind.v2.runtime.Name;

 import studytest.Util.DBUtil;
 import studytest.Util.testException;
 import studytest.model.test;

 public class testdaoimpl implements Itest{

     @SuppressWarnings("resource")
     @Override
     public void add(test test) {
         // TODO Auto-generated method stub

         //获得连接对象
                 Connection connection=DBUtil.getConnection();
                 //准备sql语句
                 String s="select * from test where name=?";
                 //创建语句传输对象
                 PreparedStatement preparedStatement= null;
                 ResultSet resultSet =null;
                 try {
                     preparedStatement = connection.prepareStatement(s);
                     preparedStatement.setString(1, test.getName());
                 //接收结果集
                     resultSet =preparedStatement.executeQuery();

                     //遍历结果集
                     while(resultSet.next()) {
                         if(resultSet.getString("name").equals(test.getName())&&
                                 resultSet.getString("teacher").equals(test.getTeacher())&&
                                     resultSet.getString("area").equals(test.getArea())) {
                             throw new testException("课程存在 ");
                         }
                 }    

                     s ="insert into test(name,teacher,area) values(?,?,?)";
                     preparedStatement =connection.prepareStatement(s);
                     preparedStatement.setString(1, test.getName());
                     preparedStatement.setString(2, test.getTeacher());
                     preparedStatement.setString(3, test.getArea());
                     preparedStatement.executeUpdate();
                 } catch (SQLException e) {
                     // TODO Auto-generated catch block
                     e.printStackTrace();
                 }finally {
                     DBUtil.close(resultSet);
                     DBUtil.close(preparedStatement);
                     DBUtil.close(connection);

                 }
                 

截图：