问题描述
奇怪的行为
不管我如何组织代码:
我想要的很简单:
a) 如果电子邮件输入表单未填写,那么不要只期待 html5 输入验证消息。
b) 如果一切正常并且电子邮件输入正确填写,则显示加载程序,然后显示确认消息。
我连续 3 天都在试验。我被卡住了。
提前致谢
AJAX/JS
function ajaxFunction() {
var form = document.getElementById("contactForm");
function handleForm(event) { event.preventDefault(); }
form.addEventListener('email_suscribe',handleForm);
var ajaxRequest;
var xmlhttp;
if (window.XMLHttpRequest) {// code for IE7+,Firefox,Chrome,Opera,Safari
xmlhttp = new XMLHttpRequest();
}
else {// code for IE6,IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById("loading").innerHTML = ''; // Hide the image after the response from the server
document.getElementById("ajaxDiv").innerHTML = xmlhttp.responseText;
}
}
document.getElementById("loading").innerHTML = '<img src="images/loading.gif" />'; // Set here the image before sending request
xmlhttp.open("GET","includes/suscripcion.asp?email_suscribe=<%=request.form("email_suscribe")%>",true);
xmlhttp.send();
}
表格
<form id="contactForm" name="contactForm">
HTML
电子邮件输入表单
<input name="email_suscribe" type="email" autocomplete="on" required="required" class="footer_suscribir" placeholder="Correo Electronico" maxlength="60">
提交按钮
<button name="submit" onclick="ajaxFunction();" class="footer_suscribete"><strong>Suscribete</strong></button>
加载器
<span id="loading"></span>
实时确认消息
<div id="ajaxDiv"></div>
解决方法
你可以检查一下。
HTML
<input name="email_suscribe" type="email" autocomplete="on" required="required" class="footer_suscribir" placeholder="Correo Electronico" maxlength="60">
<input type="button" onclick="subscribe()">
<span id="loading"></span>
<span id="ajaxDiv"></span>
JS
<script>
function subscribe() {
var email=$(".footer_suscribir").val()
if (isEmail(email)===true) {
$("#loading").fadeIn("fast")
$.ajax({
type: 'POST',crossDomain: true,url: "postdata.asp",data: {
"email": email
},success: function (resp) { //resp: return from postdata.asp
$("#ajaxDiv").html(resp)
$("#loading").fadeOut("fast")
},error: function (e) {
$("#ajaxDiv").html("AN ERROR OCCURRED")
$("#loading").fadeOut("fast")
}
});
}
else {
$("#ajaxDiv").html("EMAIL FORMAT ERROR")
}
}
function isEmail(email) {
var regex = /^([a-zA-Z0-9_.+-])+\@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/;
return regex.test(email);
}
</script>
POSTDATA.ASP
<%
'...
'DB CONNECTION
'...
' SAMPLE DB EXECUTION
email=request.form("email")
Set rsa=Server.CreateObject("Adodb.Recordset")
Sorgu="Select TOP 1 email from subscribers WHERE email='"&email&"'"
rsa.Open Sorgu,bag,1,3
if rsa.bof then
rsa.addnew
rsa("email")=email
rsa.update
response.write "SUCCESS"
else
response.write "ALREADY EXISTS"
end if
rsa.close
set rsa=nothing
%>