Combobox + UF + City + MySql + JavaScript

1

I have the following question: I have a project in Java JSP and I do not know how to select the UF combo and the City refresh as I selected earlier. Below I have an example with fixed data, but I want to do it in mysql, I want to know how I can execute the select in the database table. I need an example in my project

I've done everything that's shape and I do not know how to move forward.

I have it from here on mine.

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>JSP Page</title>
</head>
<script type='text/javascript'>
    window.onload = function () {
        BindEvent();
    }
    function BindEvent()
    {
        var elemToBind = document.getElementById("uf");
        elemToBind.onchange = function () {
            SetSel(this);
        }
    }
    function SetSel(elem)
    {
        var secondCombo = document.getElementById("cidade");
        secondCombo.value = elem.value;
    }
</script>
<body>
    <select id="uf">
        <option value="1">1</option>
        <option value="2">2</option>
        <option value="3">3</option>
        <option value="4">4</option>
    </select>
    <select id="cidade">
        <option value="1">1</option>
        <option value="2">2</option>
        <option value="3">3</option>
        <option value="4">4</option>
    </select>
</body>

I saw that in this other topic there is what I need but I do not know php needed to run jsp and doing the query in the right bank

Selecting an option in a < select > and load related data into another?

    
asked by anonymous 31.03.2015 / 23:00

0 answers