复选框（JSP PAGE）并插入 mysql 数据库

Question

i have a jsp page that user in form has to give a destination : city,country,url_of_city and 3 checkbox with the kind of the destination (summer,winter,christmas) , he can check max 2 boxes, so i need to take the results of this and insert them to a database in order to be able later to search for this destination , how can i do it this?我有一个jsp页面，表单中的用户必须给出目的地：城市，国家，url_of_city和3个带有目的地类型（夏季，冬季，圣诞节）的复选框，他最多可以选中2个框，所以我需要选择这样做的结果并将它们插入数据库，以便以后能够搜索此目的地，我该怎么做？

mysql code : mysql 代码：

CREATE TABLE DEST_C(ID_DEST_C INT(5),CATEGORY VARCHAR(45))
CREATE TABLE DEST(ID1_DEST INT(6),ID2_DEST INT (6),COUNTRY VARCHAR(40),CITY VARCHAR(40),URL VARCHAR(5400));

jsp form code: jsp表单代码：

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>create dest</title>
    </head>
    <body>
        <html>
    <head>
        <title>CREATE DESTINATION</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    </head>
    <body>
        <h1> CREATING DESTINATION </h1>
        <form name="createdest" method="get" action="create dest code.jsp">
        Country: <input type="text"  required  name="id8" /> <br>
        City: <input type="text"  required  name="id9" /> <br>
        URL Video: <input type="url"  required  name="id10" /> <br> <br>
        <i><ins>Categorize the destination (max 2): </ins></i>  <br> <br>
        <input type="checkbox" name="id5" value="1" onClick="return KeepCount()" >Christmas<br>
        <input type="checkbox" name="id6" value="2" onClick="return KeepCount()" >Winter <br>
        <input type="checkbox" name="id7" value="3" onClick="return KeepCount()" >Summer <br> <br>

        <input type="submit" value="CREATE DESTINATION" /> 


        <br>


        </form>
       <SCRIPT LANGUAGE="javascript">

function KeepCount() {

var NewCount = 0

if (document.createdest.id5.checked)
{NewCount = NewCount + 1}

if (document.createdest.id6.checked)
{NewCount = NewCount + 1}

if (document.createdest.id7.checked)
{NewCount = NewCount + 1}

if (NewCount == 3)
{
alert('Pick Just Two Please')
document.createdest; return false;
}
} 
</SCRIPT>

JSP CODE for inserts :插入的 JSP 代码：

<%@page import="java.sql.*" %> 
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>create dest code</title>
    </head>
    <body>
         <%
    int m[] = new int[5000]; String s[] = new String[5000];        
   Class.forName("com.mysql.jdbc.Driver"); 
   String myDatabase = "jdbc:mysql://localhost:3306/project_app?user=root&password=1234"; 
   Connection myConnection = DriverManager.getConnection(myDatabase);
   Statement myStatement = myConnection.createStatement();  
   boolean check=null!=request.getParameter("id5");
   boolean check1=null!=request.getParameter("id6");
   boolean check2=null!=request.getParameter("id7");
   String id8=request.getParameter("id8");
   String id9=request.getParameter("id9");
   String id10=request.getParameter("id10");
   String sqlString = "INSERT INTO DEST(COUNTRY,CITY,URL) VALUES ('"+id8+"', '"+id9+"','"+id10+"')";
   myStatement.executeUpdate(sqlString);
    myStatement.executeUpdate(sqlString1);
   myStatement.close(); 
   myConnection.close(); %>
    </body>
    <h1 style="color:blue;">Successful Registration </h1>
</html>

Answer 1

A very simple solution would be to assign a binary value to your checkboxes.一个非常简单的解决方案是为您的复选框分配一个二进制值。 So rather than 1,2,3 you could use 1,2,4.因此，您可以使用 1,2,4 而不是 1,2,3。 Then you would sum the values of the selected boxes and save this unique value.然后，您将对选定框的值求和并保存此唯一值。

As in your code:如您的代码：

`input type="checkbox" name="id5" value="1" (...)`
   `input type="checkbox" name="id6" value="2" (...)`
   `input type="checkbox" name="id7" value="4" (...)`

The truth table below shows you the different values.下面的真值表显示了不同的值。

id:         ID5   ID6  ID7    Sum
value:       1     2    4  
             x                  1
                   x            2
             x     x            3
                        x       4
             x          x       5
                   x    x       6

The solution is not SQL related, but quite frankly, neither is the question... Good luck!解决方案与 SQL 无关，但坦率地说，问题也不是......祝你好运！

复选框（JSP PAGE）并插入 mysql 数据库

问题描述

1 个解决方案

解决方案1
1 已采纳 2016-04-26 20:50:59

复选框（JSP PAGE）并插入 mysql 数据库

问题描述

1 个解决方案

解决方案1 1 已采纳 2016-04-26 20:50:59

解决方案1
1 已采纳 2016-04-26 20:50:59