Design and detailed analysis of JavaWeb business card management system

Mobile 2023-05-04 21:17:08 views: null

Table of contents

1. Preparation before system design:

 2. Registration page:

 3. Add pages:

 4. Delete the page:

 5. Modify the page: 

 6. Query page:

 7. Recycle bin page:

 8. Function main page: 

Topic: Design a simple online business card management system to realize operations such as adding, deleting, changing, checking and recycling business cards.

1. User login and registration module
The user of the system must be a registered user, and the information that a registered user needs to register includes: user login name, password, user real name and other information. This module has two functions:
(1) User login: When logging in, if the user name and password are correct, enter the system page.
(2) User registration: New users should register first, and then log in to the system.

2. Business card management module
A business card contains information such as serial number (id), name (name), gender (sex), telephone (tel) and other related information. It is necessary to complete the management operations related to the business card, mainly including: (1) Add business card
: Add business card information to the database.
(2) Modify name card: modify name card information.
(3) Query business card: query business card in a fuzzy way.
(4) Delete the business card: There are two ways to delete the business card, that is, move the business card to the recycle bin, and delete the business card completely.
(5) Browsing/Inquiry: Can fuzzily inquire and browse currently valid business cards.

3. Recycle bin management module
(1) Restore: Restore and recycle business cards in the recycle bin.
(2) Completely delete: delete the business card from the recycle bin completely.
(3) Browse/query: You can fuzzy query and browse business cards in the recycle bin.

Note: The serial number (id) is unique in this business card table and cannot be repeated.

Full version: JavaWeb programming———Business card management system

1. Preparation before system design:

    (1) Technology used: HTML+JSP+MySQL+JDBC (CSS and JavaScript can be used to optimize beautiful pages)

    (2) Use environment: Eclipse

    (3) MySQL port number: 13306 (this is set for myself, mostly 3306)

    (4) Create a database (root01)

             There are three tables under the database, as follows:


Business card table (idcard), recycle bin table (recycle)

Account password table (root01_01)

 2. Registration page:

<!-- 登录原始页面 -->
<!--A_main_A_register02.jsp-->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>已有用户登录页面</title>
</head>
<body>
   
  <center>
	   <form action="A_register04.jsp" method="post">
	   <table>
	    <tr><td>账号：</td><td><input type="text" name="root02" required></td></tr>
	    <tr><td>密码：</td><td><input type="password" name="password02" required></td></tr>
	    <tr><td colspan="2">
	        <input type="submit" value="登录">&nbsp;&nbsp;&nbsp;
	        <input type="reset" value="取消"></td>
	    </tr>
	   </table>
	   <font color="red">没有账号？<a href="A_register01.jsp">在线注册</a></font>
	  </form>
  </center>
  
</body>
</html>


<!-- 登录CSS优化页面 -->
<!--A_main_A_register02.jsp-->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>已有用户登录页面</title>
</head>
<body>

   <style>
        *{
            margin: 0px;/*margin是盒子的外边距，即盒子与盒子之间的距离，而pdding是内边距，是盒子的边与盒子内部元素的距离*/
            padding: 10px;
            box-sizing: border-box;
        }
 
        body{
            background: pink no-repeat center;
        }
 
        .ra_layout{
            width: 1150px;
            height: 550px;
            border: 8px solid #EEEEEE;
            background-color: white;
            margin: auto;/*让div水平居中*/
            margin-top: 100px;
            padding: 15px;
        }
 
        .re_left{
            /*border: 1px solid red;*/
            float: left;
            margin: 15px;
        }
 
        .re_left > p:first-child{
            color: #FFD026;
            font-size: 20px;
        }
 
        .re_left > p:last-child{
            color: #A6A6A6;
            font-size: 20px;
        }
 
        .re_center{
            float: left;
            margin: 60px;
            width: 500px;
        }
        
        .re_from{
            padding: 25px;
            padding-right: 80px;
        }
 
        .re_right{
            float: right;
            margin-right: 15px;
            padding-right: 15px;
        }
 
        .re_right > p:first-child{
            font-size: 20px;
        }
 
        .re_right p a{
            color: green;
        }
 
        .td_left{
            width: 150px;
            text-align: right;/*右对齐*/
            height: 60px;/*上下两行间隔开，出现空行效果*/
        }
 
        .td_right{
            padding-left: 10px;/*将文字与文本框之间出现间隔*/
        }
 
        #root02,#password02{
            width: 200px;
            height: 25px;
            border: 1px solid #A6A6A6;
            /*设置边框圆角*/
            border-radius: 5px;
            padding-left: 10px;
        }
 
        #but{
            width: 125px;
            height: 50px;
            background-color: #FFD026;
            border: 1px solid #FFD026;
        }
    </style>


<div class="ra_layout">
 
   <div class="re_left">
      <p>用户登录</p>
      <p>USER LOGIN</p>
   </div>
   
  <div class="re_center">
  <div class="re_from">
   
	   <form action="A_register04.jsp" method="post">
	   <table>
	    <tr><td class="td_left">账号:</td><td class="td_right"><input type="text" name="root02" id="root02" required></td></tr>
	    <tr><td class="td_left">密码:</td><td class="td_right"><input type="password" name="password02" id="password02" required></td></tr>
	    <tr><td colspan="2" align="center">
	        <input type="submit" value="登录" id="but">
	        <input type="reset" value="取消" id="but"></td>
	    </tr>
	   </table>
	  </form>
  
 </div>
 </div>
	
	 <div class="re_right">
          <p>没有账号?<a href="A_register01.jsp">在线注册</a></p>
     </div>
	
</div>
  
</body>
</html>
<!-- 注册原始页面 -->
<!--A_register01.jsp-->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>新用户注册页面</title>
</head>
<body>
 <center>
   <form action="A_register03.jsp" method="post">
   <table>
    <tr><td>姓名：</td><td><input type="text" name="name01" required></td></tr>
    <tr><td>账号：</td><td><input type="text" name="root01" required></td></tr>
    <tr><td>密码：</td><td><input type="text" name="password01" required></td></tr>
    <tr><td colspan="2">
        <input type="submit" value="提交">&nbsp;&nbsp;&nbsp;
        <input type="reset" value="取消"></td>
    </tr>
   </table>
  </form>
  <font color="red">已有账号？<a href="A_main_A_register02.jsp">立即登录</a></font>
 </center>

</body>
</html>


<!-- 注册CSS优化页面 -->
<!--A_register01.jsp-->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>新用户注册页面</title>
</head>
<body>

   <style>
        *{
            margin: 0px;/*margin是盒子的外边距，即盒子与盒子之间的距离，而pdding是内边距，是盒子的边与盒子内部元素的距离*/
            padding: 10px;
            box-sizing: border-box;
        }
 
        body{
            background: pink no-repeat center;
        }
 
        .ra_layout{
            width: 1150px;
            height: 550px;
            border: 8px solid #EEEEEE;
            background-color: white;
            margin: auto;/*让div水平居中*/
            margin-top: 100px;
            padding: 15px;
        }
 
        .re_left{
            /*border: 1px solid red;*/
            float: left;
            margin: 15px;
        }
 
        .re_left > p:first-child{
            color: #FFD026;
            font-size: 20px;
        }
 
        .re_left > p:last-child{
            color: #A6A6A6;
            font-size: 20px;
        }
 
        .re_center{
            float: left;
            margin: 60px;
            width: 500px;
        }
        
        .re_from{
            padding: 25px;
            padding-right: 80px;
        }
 
        .re_right{
            float: right;
            margin-right: 15px;
            padding-right: 15px;
        }
 
        .re_right > p:first-child{
            font-size: 20px;
        }
 
        .re_right p a{
            color: green;
        }
 
        .td_left{
            width: 150px;
            text-align: right;/*右对齐*/
            height: 60px;/*上下两行间隔开，出现空行效果*/
        }
 
        .td_right{
            padding-left: 10px;/*将文字与文本框之间出现间隔*/
        }
 
        #root01,#password01,#name01{
            width: 200px;
            height: 25px;
            border: 1px solid #A6A6A6;
            /*设置边框圆角*/
            border-radius: 5px;
            padding-left: 10px;
        }
 
        #but{
            width: 125px;
            height: 50px;
            background-color: #FFD026;
            border: 1px solid #FFD026;
        }
    </style>


<div class="ra_layout">
 
   <div class="re_left">
      <p>新用户注册</p>
      <p>USER REGISTER</p>
   </div>
   
  <div class="re_center">
  <div class="re_from">

   <form action="A_register03.jsp" method="post">
   <table>
    <tr><td class="td_left">姓名:</td><td class="td_right"><input type="text" name="name01" id="name01" required></td></tr>
    <tr><td class="td_left">账号:</td><td class="td_right"><input type="text" name="root01" id="root01" required></td></tr>
    <tr><td class="td_left">密码:</td><td class="td_right"><input type="text" name="password01" id="password01" required></td></tr>
    <tr><td colspan="2">
        <input type="submit" value="提交" id="but">
        <input type="reset" value="取消" id="but"></td>
    </tr>
   </table>
  </form>
  
 </div>
 </div>
	
	 <div class="re_right">
          <p>已有账号?<a href="A_main_A_register02.jsp">立即登录</a></p>
     </div>
	
</div>

</body>
</html>
<!--A_register03.jsp-->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>账号密码验证页面</title>
</head>
<body>
	  <%
	  request.setCharacterEncoding("UTF-8");
	  Class.forName("com.mysql.jdbc.Driver");
	  
	  String url1="jdbc:mysql://localhost:13306/";//端口号为13306
	  String dbname="root01";//密码库root01
	  String url=url1+dbname;
	  String user="root";
	  String password="1234";
	  Connection conn=DriverManager.getConnection(url, user, password);
	  
	  String sql1="select * from root01_01 where root1=?";
	  PreparedStatement pst1=conn.prepareStatement(sql1);
	  
	  String name11=request.getParameter("name01");
	  String root11=request.getParameter("root01");
	  String password11=request.getParameter("password01");
	  
	  pst1.setString(1, root11);
	  
	  ResultSet rs=pst1.executeQuery();
	  
	  if(rs.next())
	  {
		  out.println("该用户已存在，去登陆吧！");
		  //response.sendRedirect("A_register02.jsp");//直接跳转到登录页面
		  response.setHeader("refresh", "3;url=A_main_A_register02.jsp");//3秒自动刷新并跳转到登录页面
	  }
	  else{
		  String sql2="insert into root01_01(name1,root1,password1) values(?,?,?)";
		  PreparedStatement pst2=conn.prepareStatement(sql2);
		  
		  pst2.setString(1, name11);
		  pst2.setString(2, root11);
		  pst2.setString(3, password11);
		  
		  int n=pst2.executeUpdate();
		  if(n!=0){
		    	 out.println("注册"+n+"条用户成功，去登陆吧！");
		    	 response.setHeader("refresh", "3;url=A_main_A_register02.jsp");
		     }else{
		    	 out.println("注册失败！");
		     }
		  if(pst2!=null)
			  pst2.close();
	  }
	  
	  if(rs!=null)
		  rs.close();
	  if(pst1!=null)
		  pst1.close();
	  if(conn!=null)
		  conn.close();
	  %>
	  
</body>
</html>
<!--A_register04.jsp-->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>已有用户登录验证页面</title>
</head>
<body>
  <%
  request.setCharacterEncoding("UTF-8");
  Class.forName("com.mysql.jdbc.Driver");
  
  String url1="jdbc:mysql://localhost:13306/";
  String dbname="root01";//密码库root01
  String url=url1+dbname;
  String user="root";
  String password="1234";
  Connection conn=DriverManager.getConnection(url, user, password);
  
  String sql1="select * from root01_01 where root1=? and password1=?";
  PreparedStatement pst1=conn.prepareStatement(sql1);
  
  String root12=request.getParameter("root02");
  String password12=request.getParameter("password02");
  
  pst1.setString(1, root12);
  pst1.setString(2, password12);
  
  ResultSet rs=pst1.executeQuery();
  
  if(rs.next())
  {
	  out.println("欢迎使用！页面即将跳转！");
	  response.setHeader("refresh", "2;index_main.jsp");//2秒自动刷新并跳转到登录页面
  }else
  {
	  out.println("用户不存在或账号密码错误！");
	  response.setHeader("refresh", "2;A_main_A_register02.jsp");
  }
  
  if(rs!=null)
	  rs.close();
  if(pst1!=null)
	  pst1.close();
  if(conn!=null)
	  conn.close();
  %>

</body>
</html>

 

 3. Add pages:

<!-- insert01.jsp -->
<%@ 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>添加提交页面</title>
</head>
<body>
   请填写添加的记录：<hr width="100%" size="3"><br><br><br>
  <form action="insert02.jsp" method="post">
     <table borrder="0" width="238" height="252">
         <tr><td>学号：</td><td><input type="text" name="id03" required></td></tr>
         <tr><td>姓名：</td><td><input type="text" name="name03" required></td></tr>
         <tr><td>性别：</td><td>男<input type="radio" name="sex03" value="男" checked>
              &nbsp;&nbsp;&nbsp;女<input type="radio" name="sex03" value="女"></td></tr>
         <tr><td>电话：</td><td><input type="text" name="tel03" required></td></tr>
         <br>
         <tr>
            <td colspan="2">
               <input type="submit" value="提交">&nbsp;&nbsp;&nbsp;
               <input type="reset" value="取消"></td></tr>
     </table>
  </form>

</body>
</html>
<!-- insert02.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>添加解析页面</title>
</head>
<body>
    <%
     request.setCharacterEncoding("UTF-8");
     Class.forName("com.mysql.jdbc.Driver");
     
     String url1="jdbc:mysql://localhost:13306/";
     String dbname="root01";
     String url=url1+dbname;
     String user="root";
     String password="1234";
     Connection conn=DriverManager.getConnection(url, user, password);
     
     String sql1="select * from idcard where id=?";
     PreparedStatement pst1=conn.prepareStatement(sql1);
     
     int id13=Integer.parseInt(request.getParameter("id03"));
     String name13=request.getParameter("name03");
     String sex13=request.getParameter("sex03");
     int tel13=Integer.parseInt(request.getParameter("tel03"));
     pst1.setInt(1, id13);
     
     ResultSet rs=pst1.executeQuery();
     if(rs.next())
     {
    	 out.println("该用户ID已存在！");
    	 if(conn!=null) conn.close();
    	 if(pst1!=null) pst1.close();
    	 if(rs!=null) rs.close();
    	 response.setHeader("refresh","2;insert01.jsp");
     }else
     {
    	 String sql2="insert into idcard(id,name,sex,tel) values(?,?,?,?)";
         PreparedStatement pst2=conn.prepareStatement(sql2);
         
         pst2.setInt(1, id13);
         pst2.setString(2, name13);
         pst2.setString(3, sex13);
         pst2.setInt(4, tel13);
         
         int n=pst2.executeUpdate();
         if(n!=0){
        	 out.println("添加"+n+"条记录成功！");
        	 }else{
        	 out.println("添加失败！");
        	 response.setHeader("refresh","2;insert02.jsp");
         }
         if(pst2!=null) pst2.close();
         if(conn!=null) conn.close();
    	 if(pst1!=null) pst1.close();
    	 if(rs!=null) rs.close();
         
         out.println("是否具需添加？(yes/no)"); %>
       	 <form action="insert03.jsp">
        	 <input type="text" name="x1">
        	 <input type="submit" value="添加">
        	 <input type="reset" value="重置">
       	 </form>	 
     <%} %>
     
</body>
</html>
<!-- insert03.jsp -->
<%@ 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>循环添加页面</title>
</head>
<body>
         <%
    	 String x=request.getParameter("x1");
    	 if(x.equals("yes")){
    	 response.sendRedirect("insert01.jsp");
    	 }
    	 else if(x.equals("no")){
    		 out.println("添加结束！");
    	 }
    	 else
    	 {
    		 out.println("请求非法！");
    	 }
    	 %>
</body>
</html>

 4. Delete the page:

<!-- delete01.jsp -->
<%@ 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>删除提交页面</title>
</head>
<body>
    请选择删除条件：<hr width="100%" size="3"><br><br><br>
    <form action="delete02.jsp" method="post">
      <table>
       <tr><td>学号：</td><td><input type="text" name="id04" required></td></tr><br>
       <tr><td><input type="submit" value="提交"></td>&nbsp;&nbsp;
           <td><input type="reset" value="取消"></td></tr>
      </table>
    </form>
    
</body>
</html>
<!-- delete02.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>删除操作页面</title>
</head>
<body>
    <%
    request.setCharacterEncoding("UTF-8");
    Class.forName("com.mysql.jdbc.Driver");
    
    String url1="jdbc:mysql://localhost:13306/";
    String dbname="root01";
    String url=url1+dbname;
    String user="root";
    String password="1234";
    Connection conn=DriverManager.getConnection(url, user, password);
    
    String sql1="select * from idcard where id=?";
    PreparedStatement pst1=conn.prepareStatement(sql1);
    int id44=Integer.parseInt(request.getParameter("id04"));
    pst1.setInt(1, id44);
    
    ResultSet rs=pst1.executeQuery();
    if(rs.next())
    {
    	int id14=rs.getInt("id");
    	String name14=rs.getString("name");
    	String sex14=rs.getString("sex");
    	int tel14=rs.getInt("tel");
    	
    	String sql2="insert into recycle(id,name,sex,tel) values(?,?,?,?)";
    	PreparedStatement pst2=conn.prepareStatement(sql2);
    	pst2.setInt(1, id14);
    	pst2.setString(2, name14);
    	pst2.setString(3, sex14);
    	pst2.setInt(4, tel14);
    	
    	int n2=pst2.executeUpdate();
    	if(n2!=0){
       	 out.println("回收站添加"+n2+"条记录！");
       	 }else{
       	 out.println("回收站添加失败！");
        }
    	if(pst2!=null) pst2.close();
    	
    	String sql3="delete from idcard where id=?";
    	PreparedStatement pst3=conn.prepareStatement(sql3);
    	pst3.setInt(1, id44);
    	
    	int n3=pst3.executeUpdate();
    	if(n3!=0){
    		out.println("删除"+n3+"条记录！");
    	}else{
          	 out.println("删除失败！");
        }
    	if(pst3!=null) pst3.close();
    	
    	if(conn!=null) conn.close();
    	if(rs!=null) rs.close();
    }
    else{
    	out.println("删除失败！");
    	if(conn!=null) conn.close();
    	if(rs!=null) rs.close();
    }
    
    %>
</body>
</html>

 

 5. Modify the page: 

<!-- update01.jsp -->
<%@ 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>修改提交页面</title>
</head>
<body>
          请选择修改记录满足的条件：<hr width="100%" size="3"><br><br><br>
      <form action="update02.jsp" method="post">
       <table>
         <tr>
           <td>学号：</td><td><input type="text" name="id_up" required></td>
         </tr>
         <br>
         <tr>
           <td><input type="submit" value="提交"></td>&nbsp;&nbsp;
           <td><input type="reset" value="取消"></td>
         </tr>
       </table>
      </form>

</body>
</html>
<!-- update02.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>修改解析页面</title>
</head>
<body>
   <%
	request.setCharacterEncoding("UTF-8");
	Class.forName("com.mysql.jdbc.Driver");
	
	String url1="jdbc:mysql://localhost:13306/";//端口号为13306
	String dbname="root01";//密码库root01
	String url=url1+dbname;
	String user="root";
	String password="1234";
	Connection conn=DriverManager.getConnection(url, user, password);
	
	int id_up=Integer.parseInt(request.getParameter("id_up"));
	session.setAttribute("id_up", id_up);
	
	String sql="select * from idcard where id=?";
	PreparedStatement pst=conn.prepareStatement(sql);
	
	pst.setInt(1, id_up);
	ResultSet rs=pst.executeQuery();
	
	if(rs.next())
	{%>
	<form action="update03.jsp" method="post">
	 <table border="0" width="238" height="252">
	    	 <tr><td>学号：</td><td><input type="text" name="id1"></td></tr>
	         <tr><td>姓名：</td><td><input type="text" name="name1"></td></tr>
	         <tr><td>性别：</td><td>男<input type="radio" name="sex1" value="男" checked>
	              &nbsp;&nbsp;&nbsp;女<input type="radio" name="sex1" value="女"></td></tr>
	         <tr><td>电话：</td><td><input type="text" name="tel1"></td> 
	         <tr>
	            <td colspan="2">
	               <input type="submit" value="提交">&nbsp;&nbsp;&nbsp;
	               <input type="reset" value="取消"></td></tr>
    	</table>
	</form>
	<%
	if(rs!=null) rs.close();
	if(pst!=null) pst.close();
	if(conn!=null) conn.close();
	}
	else
	{
		out.println("未找到记录！");
    	if(rs!=null) rs.close();
    	if(pst!=null) pst.close();
    	if(conn!=null) conn.close();
    	response.setHeader("refresh", "2;url=update01.jsp");
	}
	%>

</body>
</html>
<!-- update03.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>修改操作页面</title>
</head>
<body>
    <%
    request.setCharacterEncoding("UTF-8");
	Class.forName("com.mysql.jdbc.Driver");
	
	String url1="jdbc:mysql://localhost:13306/";//端口号为13306
	String dbname="root01";//密码库root01
	String url=url1+dbname;
	String user="root";
	String password="1234";
	Connection conn=DriverManager.getConnection(url, user, password);
	
	String sql1="select * from idcard where id=?";
    PreparedStatement pst1=conn.prepareStatement(sql1);
    
    int id2=Integer.parseInt(request.getParameter("id1"));
	String name2=request.getParameter("name1");
	String sex2=request.getParameter("sex1");
	int tel2=Integer.parseInt(request.getParameter("tel1"));
	int id_up=(int)session.getAttribute("id_up");
	
	pst1.setInt(1, id2);
	ResultSet rs=pst1.executeQuery();
	if(rs.next())
	{
		out.println("该用户已存在，请重新填写！");
		if(conn!=null) conn.close();
		if(pst1!=null) pst1.close();
		if(rs!=null) rs.close();
		
		response.setHeader("refresh", "2;update01.jsp");
	}
	else
	{
		String sql2="update idcard set id=?,name=?,sex=?,tel=? where id=?";
		PreparedStatement pst2=conn.prepareStatement(sql2);
		
		pst2.setInt(1, id2);
		pst2.setString(2, name2);
		pst2.setString(3, sex2);
		pst2.setInt(4, tel2);
		pst2.setInt(5, id_up);
		
		int n=pst2.executeUpdate();
	    if(n!=0){
	    	out.println("修改了"+n+"条数据！");
	    	if(pst2!=null) pst2.close();
	    	if(conn!=null) conn.close();
	    	if(pst1!=null) pst1.close();
			if(rs!=null) rs.close();
	    }else{
	    	out.println("修改失败，请重新修改！");
	    	if(pst2!=null) pst2.close();
	    	if(conn!=null) conn.close();
	    	if(pst1!=null) pst1.close();
			if(rs!=null) rs.close();
	    }
	}
    
    %>

</body>
</html>

 6. Query page:

<!-- query01.jsp -->
<%@ 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>查询选择页面</title>
</head>
<body>
    请填写查询的内容：<hr width="100%" size="3"><br><br><br>
    <form action="query02.jsp" method="post">
      <input type="radio" name="rad1" value="1" checked="checked">按学号查询
      <br><br>
      <input type="radio" name="rad1" value="2">按姓名查询
      <br><br>
      <input type="radio" name="rad1" value="3">按电话查询
      <br><br>
      <input type="radio" name="rad1" value="4">查询全部人员
      <br><br>
      <input type="submit" value="提交">&nbsp;&nbsp;&nbsp;
               <input type="reset" value="取消">
    
    </form>

</body>
</html>
<!-- query02.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>查询页面</title>
</head>
<body>
   <%
    request.setCharacterEncoding("UTF-8");
	
	String x=request.getParameter("rad1");
	if(x.equals("1"))
	{%>
	  <br><br><br>
	  <form action="query03.jsp" method="post">
	    <table>
	    <tr>请输入学号(模糊查询)：</tr>
	    <tr><input type="text" name="id07"></tr><br><br>
	    <tr><input type="submit" value="提交"></tr>&nbsp;&nbsp;&nbsp;
	    <tr><input type="reset" value="重置"></tr>
	    </table>
	  </form>
	  
	<%}
	else if(x.equals("2"))
	{%>
	  <br><br><br>
      <form action="query04.jsp" method="post">
	    <table>
	    <tr>请输入姓名(模糊查询)：</tr>
	    <tr><input type="text" name="name07"></tr><br><br>
	    <tr><input type="submit" value="提交"></tr>&nbsp;&nbsp;&nbsp;
	    <tr><input type="reset" value="重置"></tr>
	    </table>
	  </form>
	  
   <%}
	else if(x.equals("3"))
	{%>
	  <br><br><br>
	  <form action="query05.jsp" method="post">
	    <table>
	    <tr>请输入电话(模糊查询)：</tr>
	    <tr><input type="text" name="tel07"></tr><br><br>
	    <tr><input type="submit" value="提交"></tr>&nbsp;&nbsp;&nbsp;
	    <tr><input type="reset" value="重置"></tr>
	    </table>
	  </form>
	  
	<%}
	else
	{
		response.sendRedirect("query06.jsp");
	}
	%>

</body>
</html>
<!-- query03.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>学号查询页面</title>
</head>
<body>
   <%
    request.setCharacterEncoding("UTF-8");
	Class.forName("com.mysql.jdbc.Driver");
	
	String url1="jdbc:mysql://localhost:13306/";//端口号为13306
	String dbname="root01";//密码库root01
	String url=url1+dbname;
	String user="root";
	String password="1234";
	Connection conn=DriverManager.getConnection(url, user, password);
	
	String sql1="select * from idcard where id like '%";
	String sql2=request.getParameter("id07");
	String sql3="%'";
	String sql=sql1+sql2+sql3;
	
	PreparedStatement pst=conn.prepareStatement(sql);
	ResultSet rs=pst.executeQuery();
	rs.last();%>
	
	<center>
	<form action="#">
     <table border="2" bgcolor="ccceee" width="650">
      <tr bgcolor="CCCCCC" align="center">
        <td>记录条数</td><td>学号</td><td>姓名</td>
        <td>性别</td><td>电话</td>
      </tr>
      <%rs.beforeFirst(); 
        while(rs.next())
        {
	      %>
	        <tr align="center">
	          <td><%=rs.getRow() %></td>
	          <td><%=rs.getString("id") %></td>
	          <td><%=rs.getString("name") %></td>
	          <td><%=rs.getString("sex") %></td>
	          <td><%=rs.getString("tel") %></td>
	         </tr>    
	  <%} %>
      </table>
   </form>
   </center>
   
   <%
   if(pst!=null) pst.close();
   if(conn!=null) conn.close();
   if(rs!=null) rs.close();
   %>

</body>
</html>
<!-- query04.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>姓名查询页面</title>
</head>
<body>
   <%
    request.setCharacterEncoding("UTF-8");
	Class.forName("com.mysql.jdbc.Driver");
	
	String url1="jdbc:mysql://localhost:13306/";//端口号为13306
	String dbname="root01";//密码库root01
	String url=url1+dbname;
	String user="root";
	String password="1234";
	Connection conn=DriverManager.getConnection(url, user, password);
	
	String sql1="select * from idcard where name like '%";
	String sql2=request.getParameter("name07");
	String sql3="%'";
	String sql=sql1+sql2+sql3;
	
	PreparedStatement pst=conn.prepareStatement(sql);
	ResultSet rs=pst.executeQuery();
	rs.last();%>
	
	<center>
	<form action="#">
     <table border="2" bgcolor="ccceee" width="650">
      <tr bgcolor="CCCCCC" align="center">
        <td>记录条数</td><td>学号</td><td>姓名</td>
        <td>性别</td><td>电话</td>
      </tr>
      <%rs.beforeFirst(); 
        while(rs.next())
        {
	      %>
	        <tr align="center">
	          <td><%=rs.getRow() %></td>
	          <td><%=rs.getString("id") %></td>
	          <td><%=rs.getString("name") %></td>
	          <td><%=rs.getString("sex") %></td>
	          <td><%=rs.getString("tel") %></td>
	         </tr>    
	  <%} %>
      </table>
   </form>
   </center>
   
   <%
   if(pst!=null) pst.close();
   if(conn!=null) conn.close();
   if(rs!=null) rs.close();
   %>

</body>
</html>
<!-- query05.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>电话查询页面</title>
</head>
<body>
   <%
    request.setCharacterEncoding("UTF-8");
	Class.forName("com.mysql.jdbc.Driver");
	
	String url1="jdbc:mysql://localhost:13306/";//端口号为13306
	String dbname="root01";//密码库root01
	String url=url1+dbname;
	String user="root";
	String password="1234";
	Connection conn=DriverManager.getConnection(url, user, password);
	
	String sql1="select * from idcard where tel like '%";
	String sql2=request.getParameter("tel07");
	String sql3="%'";
	String sql=sql1+sql2+sql3;
	
	PreparedStatement pst=conn.prepareStatement(sql);
	ResultSet rs=pst.executeQuery();
	rs.last();%>
	
	<center>
	<form action="#">
     <table border="2" bgcolor="ccceee" width="650">
      <tr bgcolor="CCCCCC" align="center">
        <td>记录条数</td><td>学号</td><td>姓名</td>
        <td>性别</td><td>电话</td>
      </tr>
      <%rs.beforeFirst(); 
        while(rs.next())
        {
	      %>
	        <tr align="center">
	          <td><%=rs.getRow() %></td>
	          <td><%=rs.getString("id") %></td>
	          <td><%=rs.getString("name") %></td>
	          <td><%=rs.getString("sex") %></td>
	          <td><%=rs.getString("tel") %></td>
	         </tr>    
	  <%} %>
      </table>
   </form>
   </center>
   
   <%
   if(pst!=null) pst.close();
   if(conn!=null) conn.close();
   if(rs!=null) rs.close();
   %>

</body>
</html>
<!-- query06.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>查询全部人员页面</title>
</head>
<body>
   <%
    request.setCharacterEncoding("UTF-8");
	Class.forName("com.mysql.jdbc.Driver");
	
	String url1="jdbc:mysql://localhost:13306/";//端口号为13306
	String dbname="root01";//密码库root01
	String url=url1+dbname;
	String user="root";
	String password="1234";
	Connection conn=DriverManager.getConnection(url, user, password);
	
	String sql="select * from idcard";
	
	PreparedStatement pst=conn.prepareStatement(sql);
	ResultSet rs=pst.executeQuery();
	rs.last();%>
	
	<center>
	<form action="#">
     <table border="2" bgcolor="ccceee" width="650">
      <tr bgcolor="CCCCCC" align="center">
        <td>记录条数</td><td>学号</td><td>姓名</td>
        <td>性别</td><td>电话</td>
      </tr>
      <%rs.beforeFirst(); 
        while(rs.next())
        {
	      %>
	        <tr align="center">
	          <td><%=rs.getRow() %></td>
	          <td><%=rs.getString("id") %></td>
	          <td><%=rs.getString("name") %></td>
	          <td><%=rs.getString("sex") %></td>
	          <td><%=rs.getString("tel") %></td>
	         </tr>    
	  <%} %>
      </table>
   </form>
   </center>
   
   <%
   if(pst!=null) pst.close();
   if(conn!=null) conn.close();
   if(rs!=null) rs.close();
   %>

</body>
</html>

 7. Recycle bin page:

<!-- recycle01.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>回收站页面</title>
</head>
<body>
      请填写回收站查询的内容：<hr width="100%" size="3"><br><br><br>
    <form action="recycle02.jsp" method="post">
      <input type="radio" name="rad2" value="1" checked="checked">按学号查询
      <br><br>
      <input type="radio" name="rad2" value="2">按姓名查询
      <br><br>
      <input type="radio" name="rad2" value="3">按电话查询
      <br><br>
      <input type="radio" name="rad2" value="4">查询全部人员
      <br><br>
      <input type="submit" value="提交">&nbsp;&nbsp;&nbsp;
               <input type="reset" value="取消">
    
    </form>
</body>
</html>
<!-- recycle02.jsp -->
<%@ 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>回收站填写页面</title>
</head>
<body>
      回收站页面：<hr width="100%" size="3"><br><br><br>
    <%
    request.setCharacterEncoding("UTF-8");
	
	String x=request.getParameter("rad2");
	if(x.equals("1"))
	{%>
	  <br><br><br>
	  <form action="recycle03.jsp" method="post">
	    <table>
	    <tr>请输入学号(模糊查询)：</tr>
	    <tr><input type="text" name="id08"></tr><br><br>
	    <tr><input type="submit" value="提交"></tr>&nbsp;&nbsp;&nbsp;
	    <tr><input type="reset" value="重置"></tr>
	    </table>
	  </form>
	  
	<%}
	else if(x.equals("2"))
	{%>
	  <br><br><br>
      <form action="recycle04.jsp" method="post">
	    <table>
	    <tr>请输入姓名(模糊查询)：</tr>
	    <tr><input type="text" name="name08"></tr><br><br>
	    <tr><input type="submit" value="提交"></tr>&nbsp;&nbsp;&nbsp;
	    <tr><input type="reset" value="重置"></tr>
	    </table>
	  </form>
	  
   <%}
	else if(x.equals("3"))
	{%>
	  <br><br><br>
	  <form action="recycle05.jsp" method="post">
	    <table>
	    <tr>请输入电话(模糊查询)：</tr>
	    <tr><input type="text" name="tel08"></tr><br><br>
	    <tr><input type="submit" value="提交"></tr>&nbsp;&nbsp;&nbsp;
	    <tr><input type="reset" value="重置"></tr>
	    </table>
	  </form>
	  
	<%}
	else
	{
		response.sendRedirect("recycle06.jsp");
	}
	%>
</body>
</html>
<!-- recycle03.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>回收站学号模糊查询</title>
</head>
<body>
     回收站页面：<hr width="100%" size="3"><br><br><br>
    <script type="text/javascript">
	   function reduction()
	   {
		   location.href ="recycle10.jsp";
	   }
	   
	   function Delete()
	   {
		   location.href ="recycle09.jsp";
	   }
   
   </script>
   
    <%
    request.setCharacterEncoding("UTF-8");
	Class.forName("com.mysql.jdbc.Driver");
	
	String url1="jdbc:mysql://localhost:13306/";//端口号为13306
	String dbname="root01";//密码库root01
	String url=url1+dbname;
	String user="root";
	String password="1234";
	Connection conn=DriverManager.getConnection(url, user, password);
	
	String sql1="select * from recycle where id like '%";
	String sql2=request.getParameter("id08");
	String sql3="%'";
	String sql=sql1+sql2+sql3;
	
	PreparedStatement pst=conn.prepareStatement(sql);
	ResultSet rs=pst.executeQuery();
	rs.last();%>
	
	<center>
	<form action="#">
     <table border="2" bgcolor="ccceee" width="1000">
      <tr bgcolor="CCCCCC" align="center">
        <td>记录条数</td><td>学号</td><td>姓名</td>
        <td>性别</td><td>电话</td><td>单个删除</td><td>单个还原</td>
      </tr>
      <%rs.beforeFirst(); 
        while(rs.next())
        {
	      %>
	        <tr align="center">
	          <td><%=rs.getRow() %></td>
	          <td><%=rs.getString("id") %></td>
	          <td><%=rs.getString("name") %></td>
	          <td><%=rs.getString("sex") %></td>
	          <td><%=rs.getString("tel") %></td>
	          <%int x=Integer.parseInt(rs.getString("id")); %>
	          <%session.setAttribute("id18", x); %>
	          <td><a href="recycle07.jsp">删除</a></td>
	          <td><a href="recycle08.jsp">还原</a></td>
	         </tr>    
	  <%} %>
      </table>
   </form>
   
   <%
   if(pst!=null) pst.close();
   if(conn!=null) conn.close();
   if(rs!=null) rs.close();
   %>
   
   <br>
   <input type="button" name="name1" value="全部还原" onclick="reduction()">&nbsp;&nbsp;&nbsp;
   <input type="button" name="name2" value="全部删除" onclick="Delete()">
   </center>

</body>
</html>
<!-- recycle04.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>回收站姓名模糊查询</title>
</head>
<body>
    回收站页面：<hr width="100%" size="3"><br><br><br>
   <script type="text/javascript">
	   function reduction()
	   {
		   location.href ="recycle10.jsp";
	   }
	   
	   function Delete()
	   {
		   location.href ="recycle09.jsp";
	   }
   
   </script>
   
   <%
    request.setCharacterEncoding("UTF-8");
	Class.forName("com.mysql.jdbc.Driver");
	
	String url1="jdbc:mysql://localhost:13306/";//端口号为13306
	String dbname="root01";//密码库root01
	String url=url1+dbname;
	String user="root";
	String password="1234";
	Connection conn=DriverManager.getConnection(url, user, password);
	
	String sql1="select * from recycle where id like '%";
	String sql2=request.getParameter("name08");
	String sql3="%'";
	String sql=sql1+sql2+sql3;
	
	PreparedStatement pst=conn.prepareStatement(sql);
	ResultSet rs=pst.executeQuery();
	rs.last();%>
	
	<center>
	<form action="#">
     <table border="2" bgcolor="ccceee" width="1000">
      <tr bgcolor="CCCCCC" align="center">
        <td>记录条数</td><td>学号</td><td>姓名</td>
        <td>性别</td><td>电话</td><td>单个删除</td><td>单个还原</td>
      </tr>
      <%rs.beforeFirst(); 
        while(rs.next())
        {
	      %>
	        <tr align="center">
	          <td><%=rs.getRow() %></td>
	          <td><%=rs.getString("id") %></td>
	          <td><%=rs.getString("name") %></td>
	          <td><%=rs.getString("sex") %></td>
	          <td><%=rs.getString("tel") %></td>
	          <%int x=Integer.parseInt(rs.getString("id")); %>
	          <%session.setAttribute("id18", x); %>
	          <td><a href="recycle07.jsp">删除</a></td>
	          <td><a href="recycle08.jsp">还原</a></td>
	         </tr>    
	  <%} %>
      </table>
   </form>
   
   <%
   if(pst!=null) pst.close();
   if(conn!=null) conn.close();
   if(rs!=null) rs.close();
   %>
   
   <br>
   <input type="button" name="name1" value="全部还原" onclick="reduction()">&nbsp;&nbsp;&nbsp;
   <input type="button" name="name2" value="全部删除" onclick="Delete()">
   </center>
</body>
</html>
<!-- recycle05.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>回收站电话模糊查询</title>
</head>
<body>
       回收站页面：<hr width="100%" size="3"><br><br><br>
    <script type="text/javascript">
	   function reduction()
	   {
		   location.href ="recycle10.jsp";
	   }
	   
	   function Delete()
	   {
		   location.href ="recycle09.jsp";
	   }
   
   </script>
   
   <%
    request.setCharacterEncoding("UTF-8");
	Class.forName("com.mysql.jdbc.Driver");
	
	String url1="jdbc:mysql://localhost:13306/";//端口号为13306
	String dbname="root01";//密码库root01
	String url=url1+dbname;
	String user="root";
	String password="1234";
	Connection conn=DriverManager.getConnection(url, user, password);
	
	String sql1="select * from recycle where id like '%";
	String sql2=request.getParameter("tel08");
	String sql3="%'";
	String sql=sql1+sql2+sql3;
	
	PreparedStatement pst=conn.prepareStatement(sql);
	ResultSet rs=pst.executeQuery();
	rs.last();%>
	
	<center>
	<form action="#">
     <table border="2" bgcolor="ccceee" width="1000">
      <tr bgcolor="CCCCCC" align="center">
        <td>记录条数</td><td>学号</td><td>姓名</td>
        <td>性别</td><td>电话</td><td>单个删除</td><td>单个还原</td>
      </tr>
      <%rs.beforeFirst(); 
        while(rs.next())
        {
	      %>
	        <tr align="center">
	          <td><%=rs.getRow() %></td>
	          <td><%=rs.getString("id") %></td>
	          <td><%=rs.getString("name") %></td>
	          <td><%=rs.getString("sex") %></td>
	          <td><%=rs.getString("tel") %></td>
	          <%int x=Integer.parseInt(rs.getString("id")); %>
	          <%session.setAttribute("id18", x); %>
	          <td><a href="recycle07.jsp">删除</a></td>
	          <td><a href="recycle08.jsp">还原</a></td>
	         </tr>    
	  <%} %>
      </table>
   </form>
   
   <%
   if(pst!=null) pst.close();
   if(conn!=null) conn.close();
   if(rs!=null) rs.close();
   %>
   
   <br>
   <input type="button" name="name1" value="全部还原" onclick="reduction()">&nbsp;&nbsp;&nbsp;
   <input type="button" name="name2" value="全部删除" onclick="Delete()">
   </center>
</body>
</html>
<!-- recycle06.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>回收站查询全部页面</title>
</head>
<body>
     回收站页面：<hr width="100%" size="3"><br><br><br>
   <script type="text/javascript">
	   function reduction()
	   {
		   location.href ="recycle10.jsp";
	   }
	   
	   function Delete()
	   {
		   location.href ="recycle09.jsp";
	   }
   
   </script>
   <center>
    <%
    request.setCharacterEncoding("UTF-8");
    Class.forName("com.mysql.jdbc.Driver");
    
    String url1="jdbc:mysql://localhost:13306/";
    String dbname="root01";
    String url=url1+dbname;
    String user="root";
    String password="1234";
    Connection conn=DriverManager.getConnection(url, user, password);
    
    String sql1="select * from recycle";
    PreparedStatement pst1=conn.prepareStatement(sql1);
    
    ResultSet rs=pst1.executeQuery();
    rs.last();%>
    
	<form action="#">
     <table border="2" bgcolor="ccceee" width="1000">
      <tr bgcolor="CCCCCC" align="center">
        <td>记录条数</td><td>学号</td><td>姓名</td>
        <td>性别</td><td>电话</td><td>单个删除</td><td>单个还原</td>
      </tr>
      <%rs.beforeFirst(); 
        while(rs.next())
        {
	      %>
	        <tr align="center">
	          <td><%=rs.getRow() %></td>
	          <td><%=rs.getString("id") %></td>
	          <td><%=rs.getString("name") %></td>
	          <td><%=rs.getString("sex") %></td>
	          <td><%=rs.getString("tel") %></td>
	          <%int x=Integer.parseInt(rs.getString("id")); %>
	          <%session.setAttribute("id18", x); %>
	          <td><a href="recycle07.jsp">删除</a></td>
	          <td><a href="recycle08.jsp">还原</a></td>
	         </tr>    
	  <%} %>
      </table>
   </form>
   
    
   <%
   if(rs!=null){rs.close();}
   if(pst1!=null){pst1.close();}
   if(conn!=null){conn.close();}
   %>
   <br>
   <input type="button" name="name1" value="全部还原" onclick="reduction()">&nbsp;&nbsp;&nbsp;
   <input type="button" name="name2" value="全部删除" onclick="Delete()">
   </center>
</body>
</html>
<!-- recycle07.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>回收站单个删除页面</title>
</head>
<body>
   <%
   request.setCharacterEncoding("UTF-8");
   Class.forName("com.mysql.jdbc.Driver");
   
   String url1="jdbc:mysql://localhost:13306/";
   String dbname="root01";
   String url=url1+dbname;
   String user="root";
   String password="1234";
   Connection conn=DriverManager.getConnection(url, user, password);
   
   String sql="delete from recycle where id=?";
   PreparedStatement pst=conn.prepareStatement(sql);
   
   pst.setInt(1, (int)session.getAttribute("id18"));
   
   int n=pst.executeUpdate();
   if(n!=0)
   {
	   out.println("删除"+n+"条记录成功！");
   }
   else
   {
	   out.println("删除失败！");
   }
   if(pst!=null) pst.close();
   if(conn!=null) conn.close();
   
   response.setHeader("refresh", "2;url=recycle01.jsp");
   %>

</body>
</html>
<!-- recycle08.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>回收站单个还原页面</title>
</head>
<body>
    <%
   request.setCharacterEncoding("UTF-8");
   Class.forName("com.mysql.jdbc.Driver");
   
   String url1="jdbc:mysql://localhost:13306/";
   String dbname="root01";
   String url=url1+dbname;
   String user="root";
   String password="1234";
   Connection conn=DriverManager.getConnection(url, user, password);
   
   String sql="select * from recycle where id=?";
   PreparedStatement pst=conn.prepareStatement(sql);
   
   pst.setInt(1, (int)session.getAttribute("id18"));
   
   ResultSet rs=pst.executeQuery();
   PreparedStatement pst2=null;
   PreparedStatement pst3=null;
   if(rs.next())
   {
	   int id15=rs.getInt("id");
	   String name15=rs.getString("name");
	   String sex15=rs.getString("sex");
	   int tel15=rs.getInt("tel");
	   
	   String sql2="insert into idcard(id,name,sex,tel) values(?,?,?,?)";
	   pst2=conn.prepareStatement(sql2);
	   pst2.setInt(1, id15);
	   pst2.setString(2, name15);
	   pst2.setString(3, sex15);
	   pst2.setInt(4, tel15);
		
	   String sql3="delete from recycle where id=?";
	   pst3=conn.prepareStatement(sql3);
	   pst3.setInt(1, id15);
	   pst3.execute();
	   
	   int n2=pst2.executeUpdate();
	   if(n2!=0){
	     out.println("回收站还原成功，名片添加"+n2+"条记录！");
	     }else{
	     	 out.println("回收站还原失败！");
	     }
   }
   
   if(pst!=null) pst.close();
   if(conn!=null) conn.close();
   if(pst2!=null) pst2.close();
   if(pst3!=null) pst3.close();
   if(rs!=null) rs.close();
   
   response.setHeader("refresh", "2;url=recycle01.jsp");
   %>
</body>
</html>
<!-- recycle09.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>回收站全部删除页面</title>
</head>
<body>
    <%
   request.setCharacterEncoding("UTF-8");
   Class.forName("com.mysql.jdbc.Driver");
   
   String url1="jdbc:mysql://localhost:13306/";
   String dbname="root01";
   String url=url1+dbname;
   String user="root";
   String password="1234";
   Connection conn=DriverManager.getConnection(url, user, password);
   
   String sql1="select * from recycle";
   PreparedStatement pst1=conn.prepareStatement(sql1);
   
   ResultSet rs=pst1.executeQuery();
   PreparedStatement pst2=null;
   PreparedStatement pst3=null;
   int sum=0;
   while(rs.next())
   {
		int id15=rs.getInt("id");
	   	String name15=rs.getString("name");
	   	String sex15=rs.getString("sex");
	   	int tel15=rs.getInt("tel");
    	
    	String sql3="delete from recycle where id=?";
    	pst3=conn.prepareStatement(sql3);
    	pst3.setInt(1, id15);
    	pst3.execute();
    	
    	pst3.executeUpdate();
    	sum++;
   }
   if(true)
   {
	   out.println("已全部删除"+sum+"条记录！");
   }
   
    if(pst3!=null) pst3.close();
	if(conn!=null) conn.close();
	if(rs!=null) rs.close();
	if(pst1!=null) pst1.close();
	
	response.setHeader("refresh", "2;url=recycle01.jsp");
   %>
</body>
</html>
<!-- recycle010.jsp -->
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.sql.*"%>
<!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>回收站全部还原页面</title>
</head>
<body>
   <%
   request.setCharacterEncoding("UTF-8");
   Class.forName("com.mysql.jdbc.Driver");
   
   String url1="jdbc:mysql://localhost:13306/";
   String dbname="root01";
   String url=url1+dbname;
   String user="root";
   String password="1234";
   Connection conn=DriverManager.getConnection(url, user, password);
   
   String sql1="select * from recycle";
   PreparedStatement pst1=conn.prepareStatement(sql1);
   
   ResultSet rs=pst1.executeQuery();
   PreparedStatement pst2=null;
   PreparedStatement pst3=null;
   int sum=0;
   while(rs.next())
   {
		int id15=rs.getInt("id");
	   	String name15=rs.getString("name");
	   	String sex15=rs.getString("sex");
	   	int tel15=rs.getInt("tel");
	   
	   	String sql2="insert into idcard(id,name,sex,tel) values(?,?,?,?)";
    	pst2=conn.prepareStatement(sql2);
    	pst2.setInt(1, id15);
    	pst2.setString(2, name15);
    	pst2.setString(3, sex15);
    	pst2.setInt(4, tel15);
    	
    	String sql3="delete from recycle where id=?";
    	pst3=conn.prepareStatement(sql3);
    	pst3.setInt(1, id15);
    	pst3.execute();
    	
    	pst2.executeUpdate();
    	sum++;
   }
   if(true)
   {
	   out.println("已全部还原"+sum+"条记录！");
   }
   
    if(pst3!=null) pst3.close();
    if(pst2!=null) pst2.close();
	if(conn!=null) conn.close();
	if(rs!=null) rs.close();
	if(pst1!=null) pst1.close();
    
	response.setHeader("refresh", "2;url=recycle01.jsp");
   %>

</body>
</html>

 8. Function main page: 

<!-- index_main.jsp -->
<%@ 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>功能显示页面</title>
</head>
  <frameset rows="130,*">
       <frame src="index_title.jsp" scrolling="no">
       <frameset cols="300,*">
          <frame src="index_left.jsp" name="left" scrolling="no">
          <frame src="index_right.jsp" name="right" scrolling="no">
       </frameset>
    </frameset>
</html>
<!-- index_left.jsp -->
<%@ 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>页面菜单</title>
</head>
<body>
   <font color="blue" size="5">操作页面</font>
   <br><br><br><br><br>
   <p><a href="insert01.jsp" target="right">添加记录</a></p>
   <p><a href="update01.jsp" target="right">修改记录</a></p>
   <p><a href="insert01.jsp" target="right">增加记录</a></p>
   <p><a href="delete01.jsp" target="right">删除记录</a></p>
   <p><a href="query01.jsp" target="right">查询记录</a></p>
   <p><a href="recycle01.jsp" target="right">回收站记录</a></p>

</body>
</html>
<!-- index_right.jsp -->
<%@ 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>操作显示页面</title>
</head>
<body bgcolor="white">
    <font color="purple"><h1>Hello，world！</h1></font>
   
</body>
</html>
<!-- index_title.jsp -->
<%@ 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>主标题页面</title>
</head>
<body>
   <center>
     <h1><font color="pink">名片管理系统</font></h1>
   
   </center>
</body>
</html>

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