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我正在尝试在进行 Ajax 调用时显示模式弹出窗口以显示“请稍候”。仅在调用完成后才会弹出。
当我单击我的网络链接时,一切正常,除了在要求用户等待的延迟之后,应该显示“请稍候”的模式弹出窗口会闪烁一瞬间。也就是说,模式是在 Ajax 调用完成之后而不是之前弹出的。
当页面加载时,它会调用AjaxInitialUpdate。这工作得很好。
问题是当您单击调用 AjaxChangePassword 的按钮时。
该函数应该拉出一个模态,然后联系 Web 服务器,最后删除该模型并调用 AjaxInitialUpdate 函数刷新整个屏幕。
问题在于,AjaxChangePassword 模式在 Web 查询完成之前不会弹出(此时,告诉用户“请稍候”是没有意义的)。
现在,我完全是自学成才,所以我可能会用错误的名称或术语来称呼事物。我欢迎任何让它运行得更好的想法,但请详细说明,我在 Java 方面还是新手。
另外,我上次进行任何类型的 HTML 编程是在样式表成为可行之前,所以我也必须学习它们(并刷新所有其余内容,所以请解释任何答案详细)。
最后,它的服务器端是用 Powershell 编写的,并且是单线程的,因此我尝试将尽可能多的内容放入 HTML 文件中,而不是调用辅助文件,例如样式表和图像。
<!DOCTYPE html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="0" />
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {font-family: Arial, Helvetica, sans-serif;}
/* The Modal (background) */
.modal {
display: none; /* Hidden by default */
position: fixed; /* Stay in place */
z-index: 1; /* Sit on top */
padding-top: 100px; /* Location of the box */
left: 0;
top: 0;
width: 100%; /* Full width */
height: 100%; /* Full height */
overflow: auto; /* Enable scroll if needed */
background-color: rgb(0,0,0); /* Fallback color */
background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
/* Believe these are not needed.
Imported from web site that I copied the code from.
padding: 8px 8px;
outline: none;
border: none;
border-radius: 115px;
box-shadow: 0 3px #999; */
}
/* Modal Content */
.modal-content {
background-color: #fefefe;
margin: auto;
padding: 20px;
border: 1px solid #888;
width: 70%;
}
/* The Close Button */
.close {
color: #aaaaaa;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
#IndividualSystem {
font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
border-collapse: collapse;
width: 100%;
border: 1;
}
#IndividualSystem td, #IndividualSystem th {
text-align: left;
padding: 8px;
color: black
border: 1px solid black;
}
#IndividualSystem tr {
padding-top: 12px;
padding-bottom: 12px;
text-align: left;
background-color: #eeeeee;
}
.tab { margin-left: 40px; }
.button {
display: inline-block;
padding: 8px 8px;
font-size: 12px;
cursor: pointer;
text-align: center;
text-decoration: none;
outline: none;
color: #fff;
background-color: #4CAF50;
border: none;
border-radius: 15px;
box-shadow: 0 3px #999;
}
.button:hover {background-color: #3e8e41}
.button:active {
background-color: #3e8e41;
box-shadow: 1 5px #666;
transform: translateY(4px);
}
.button2 {
display: inline-block;
padding: 8px 8px;
font-size: 12px;
cursor: pointer;
text-align: center;
text-decoration: none;
outline: none;
color: #fff;
background-color: #000080;
border: none;
border-radius: 15px;
box-shadow: 0 3px #999;
}
.button2:hover {background-color: #df330e}
.button2:active {
background-color: #FD2E02;
box-shadow: 1 5px #666;
transform: translateY(4px);
}
#IndividualSystem {
font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
border-collapse: collapse;
width: 100%;
border: 1;
}
</style>
<Title>Cyber Track</title>
</head>
<body>
<table>
<tr>
<td>blah</td>
<td><h1>Systems and Passwords</H1>
<h3>Information within this page is considered confidential.</h3>
</td></tr>
</table>
<hr>
<input type="hidden" id="Leftlink" name="Leftlink" value="0">
<input type="hidden" id="Rightlink" name="Rightlink" value="0">
<input type="hidden" id="serverID" name="serverID" value="server8\admin-server8">
<input type="hidden" id="count" name="count" value="10"> <!--- Number of servers per page on server list //-->
<!-- The Modals #1 -->
<div id="myModal1" class="modal">
<!-- Modal content -->
<div class="modal-content">
<h4><label id="ModalTextLine1">Loading content from server</label></h4>
</div>
</div>
<!-- The Modals #2 -->
<div id="myModal2" class="modal">
<!-- Modal content -->
<div class="modal-content">
<span class="close2">×</span>
How long do you need the password?
<form action='#'>
<select name="days">
<option value='1' >1 day or less</option>
<option value='7'>between 1 and 2 days</option>
<option value='7'>between 2 and 7 days</option>
<option value='30'>between 7 and 30 days</option>
<option value='365' selected>for up to a year.</option>
</select>
<br>
<input type="submit" value="Process Request">
</form>
</div>
</div>
<script>
// Get the modal
var modal2 = document.getElementById('myModal2');
// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close2")[0];
// When the user clicks on <span> (x), close the modal
span.onclick = function() {
modal2.style.display = "none";
}
// When the user clicks anywhere outside of the modal, close it (or actually, just hide it)
window.onclick = function(event) {
if (modal2.style.display != "none")
{
if (event.target == modal2) {
modal2.style.display = "none";
}
}
}
</script>
<!-- End Loaded from function -->
<table id="IndividualSystem"> <!-- IndividualSystem - to define needed style sheet //-->
<tr>
<td style="width: 215px;">Server</td>
<td style="width: 259px;"><label ID="DynServerName">Loading</label></td>
</tr>
<tr>
<td style="width: 215px;">User ID</td>
<td style="width: 259px;"><label ID="DynAdminID">Loading</label></td>
</tr>
<tr>
<td colspan="2"><hr></td>
</tr>
<tr>
<td style="width: 215px;">Checked out status:</td>
<td style="width: 259px;"><label ID="DynLastCheckedout">Loading</label></td>
</tr>
<tr>
<td style="width: 215px;" valign='top' >Last checked out by:</td>
<td style="width: 259px;" valign='top' ><label ID="DynLastCheckedBy">Loading...</label>
<button class="button" onclick="javascript:AjaxCheckOutPassword()" id="PassStatus">Loading</button> <!-- AjaxCheckOutPassword -->
</td>
</tr>
<tr>
<td valign='top' style="width: 215px;">Expected Check In Date:</td>
<td valign='top' style="width: 259px;"><label ID="DynExpectedBack">Loading</label></td>
</tr>
<tr>
<td style="width: 215px;">Date of last password change:</td>
<td style="width: 259px;"><label id="DynLastReset">Loading</label> <button class="button2" onclick="AjaxChangePassword()">Force Change Now!</button>
</td>
</tr>
<tr>
<th colspan="2">Notify:<br>
<table border="1" padding = "0" width=100%>
<tr>
<td width=200>On Use:</td><td><label id="DynEmailCheckOut">Loading</label></td>
</tr>
<tr>
<td width=200>On Checkin:</td><td><label id="DynEmailCheckIn">Loading</label></td>
</tr>
</table>
</th>
</tr>
<tr><td colspan="2">
<label ID="DynAccountPurpose"></label>
</td></tr>
</tbody>
</table>
<!-- Page Footer (if any) //-->
<!-- Page links left/up/right //-->
<table>
<tr><td width = 50>
<label id="Show-Left">
<a class='w3-left w3-btn' href='#' onclick="AjaxNavigate(-1)" text='Prior Server'>
<img src='data:image/jpeg;base64,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' alt='go to prior server' height='26' width='32'>
</a>
</label>
</td>
<td>
<a class='w3-left w3-btn' href='#' onclick="AjaxNavigate(0)" text='Next server'>Return to main list</a>
</td>
<td width = "50">
<label id="Show-Right">
<a class='w3-left w3-btn' href='#' onclick="AjaxNavigate(1)" text='Next server'>
<img src='data:image/jpeg;base64,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' alt='go to prior server' height='26' width='32'>
</a>
</label>
</td>
</tr></table>
<!-- End Page links left/up/right //-->
<!-- Dynamic JAVA Script Section //-->
<script>
// disable our NAV pointers till later where we may re-enable them.
document.getElementById('Show-Right').style.display = 'none';
document.getElementById('Show-Left').style.display = 'none';
//
// This is the specific function that I need help with.
// Why does this modal pop up only after the actual query is done?
//
function AjaxChangePassword(){
document.getElementById('myModal1').style.display = "block";
document.getElementById('myModal2').style.display = "none"; // Make sure its not poped up..
// we need to set item on the modal to explain what we are doing...
document.getElementById("ModalTextLine1").innerHTML="Processing password change request. Please Wait"
var xhr = "";
var xhr = new XMLHttpRequest();
// server will check if values are valid..
var Server = document.getElementById("DynServerName").innerHTML;
var AdminID = document.getElementById("DynAdminID").innerHTML;
xhr.open('GET', 'http://PSShellSrv.mydomain.local:80/CyberPass3/?command=update&sub=change&server=' + Server + '/' + AdminID+'&NoCache=' + ((new Date()).getTime()), true);
xhr.responseType = 'text';
xhr.onload = function () {
console.log('Initail Comment Response onpassword change.');
if (xhr.readyState === xhr.DONE) {
if (xhr.status === 200) {
console.log(xhr.response);
console.log("Report password changed.");
AjaxInitialUpdate() // password changed, lets refresh.
};
};
};
xhr.send(null);
document.getElementById('myModal1').style.display = "none";
};
// Navigate left and right..
function AjaxNavigate(link)
{
xx = document.getElementById('Leftlink').value
xx = document.getElementById('Rightlink').value
if (link == 0)
{
// Back to the main page. Get the values that make who we are -- servername and count.
var count = document.getElementById('count').value;
var CurrentSystem = document.getElementById('serverID').value;
var x = '/CyberPass3/?command=homepage&server=' + CurrentSystem + '&count='+ count + '&NoCache=' + ((new Date()).getTime());
location.replace('/CyberPass3/?command=homepage&server=' + CurrentSystem + '&count='+ count + '&NoCache=' + ((new Date()).getTime()));
}
else
{
if (link == 1)
{
document.getElementById('serverID').value = document.getElementById('Rightlink').value
} else {
document.getElementById('serverID').value = document.getElementById('Leftlink').value
}
// we've moved left or right. Lets update.
AjaxInitialUpdate()
}
}
function AjaxCheckOutPassword() {
console.log("Checkout Code not yet written");
};
function AjaxInitialUpdate() {
var xhr = ""
var xhr = new XMLHttpRequest();
var count = document.getElementById('count').value;
var link = document.getElementById('serverID').value
document.getElementById('myModal1').style.display = "block"; // show we are updating everything..
document.getElementById('myModal2').style.display = "none"; // should already be hidden, but lets make sure..
xhr.open('GET', 'http://PSShellSrv.mydomain.local:80/CyberPass3/?command=update&sub=refresh&server=' + link + '&count=' + count + '&NoCache=' + ((new Date()).getTime()), true);
xhr.responseType = 'text';
xhr.onload = function () {
console.log('Initail Response.');
if (xhr.readyState === xhr.DONE) {
if (xhr.status === 200) {
WebFields = xhr.responseText.split("|");
document.getElementById("DynServerName").innerHTML = WebFields[0];
document.getElementById("DynAdminID").innerHTML = WebFields[1];
document.getElementById("DynLastCheckedout").innerHTML = WebFields[2];
document.getElementById("DynLastCheckedBy").innerHTML = WebFields[3];
document.getElementById("DynExpectedBack").innerHTML = WebFields[4];
document.getElementById("DynLastReset").innerHTML = WebFields[5];
document.getElementById("PassStatus").innerHTML = WebFields[6];
document.getElementById("DynEmailCheckIn").innerHTML = WebFields[7];
document.getElementById("DynEmailCheckOut").innerHTML = WebFields[8];
// if no comment, don't even dispay the table cells.
if (WebFields[9].slice(0,1) == "{" && WebFields[9].slice(-1) == "}" && WebFields[9] != "{}" )
{
var res = WebFields[9].split("{");
var res = res[1].split("}")[0];
document.getElementById("DynAccountPurpose").innerHTML = "<tr><td style='width: 474px;' colspan='2'><p><b>Account Comments:</b></p><p class='tab'>" + res + "</p></td></tr>";
}
else
{
document.getElementById("DynAccountPurpose").innerHTML = "";
console.log("No Comment");
};
// lets populate the nav buttons..
if (WebFields[10] == '\\')
{
// hide go left
document.getElementById('Show-Left').style.display = 'none';
document.getElementById("Leftlink").value = "0/0"
}
else
{
//Enable go left
document.getElementById('Show-Left').style.display = 'block';
document.getElementById('Leftlink').value = WebFields[10];
};
// lets populate the nav buttons..
if (WebFields[11] == "\\")
{
// hide go right
document.getElementById('Show-Right').style.display = 'none';
document.getElementById("Rightlink").value = "0/0";
}
else
{
// Enable go right
document.getElementById('Show-Right').style.display = 'block';
document.getElementById("Rightlink").value = WebFields[11];
};
document.getElementById('myModal1').style.display = "none";
}
if (xhr.status === 403) {
console.log(xhr.response);
document.getElementById("PassStatus").innerHTML = 'Access Denied';
}
if (xhr.status === 404) {
console.log(xhr.response);
document.getElementById("PassStatus").innerHTML = 'Unable to load';
};
}
else
{
document.getElementById("PassStatus").innerHTML = "Failed";
};
};
xhr.send(null);
};
// Now, load the initial value..
window.onload = AjaxInitialUpdate();
</script>
当我调用AjaxChangePassword()时,我希望模式在查询之前打开。就像现在一样,如果我在页面加载后但在启动此功能之前停止服务器,则模式永远不会弹出,然后一旦我启动服务器端备份,我就会看到查询进入并获得答案,仅然后它会弹出,然后只弹出一瞬间。
我调用它的方式做错了什么?
最佳答案
当我审查你的代码时,发现在函数 AjaxChangePassword 首先打开模态,然后调用 ajax,然后关闭模态,问题是基本上 javascript 是同步执行的,但如果有 ajax 调用,那么它会异步执行,所以根据你的模态打开,然后调用 ajax 直到 ajax 忙于获取响应,然后才会执行下一行,该行用于模态关闭,这发生在几毫秒内,因此您看不到任何内容,并且您说在 ajax 调用模态之后之所以显示,是因为在 AjaxChangePassword 中,回调方法是 AjaxInitialUpdate,并且在这个方法中,您打开了模态,然后关闭了,但请记住,在此方法中,您在回调方法中关闭了模态,因此它会出现一段时间,您可以看到,根据我的说法,只需删除
document.getElementById('myModal1').style.display = "none";
下面 AjaxChangePassword 方法中的这一行是更正的 AjaxChangePassword 函数
function AjaxChangePassword(){
document.getElementById('myModal1').style.display = "block";
document.getElementById('myModal2').style.display = "none"; // Make sure its not poped up..
// we need to set item on the modal to explain what we are doing...
document.getElementById("ModalTextLine1").innerHTML="Processing password change request. Please Wait"
var xhr = "";
var xhr = new XMLHttpRequest();
// server will check if values are valid..
var Server = document.getElementById("DynServerName").innerHTML;
var AdminID = document.getElementById("DynAdminID").innerHTML;
xhr.open('GET', 'http://PSShellSrv.mydomain.local:80/CyberPass3/?command=update&sub=change&server=' + Server + '/' + AdminID+'&NoCache=' + ((new Date()).getTime()), true);
xhr.responseType = 'text';
xhr.onload = function () {
console.log('Initail Comment Response onpassword change.');
if (xhr.readyState === xhr.DONE) {
if (xhr.status === 200) {
document.getElementById('myModal1').style.display = "none";
console.log(xhr.response);
console.log("Report password changed.");
AjaxInitialUpdate() // password changed, lets refresh.
};
};
};
xhr.send(null);
};
并检查。我可能是错的,但请检查一下。
关于javascript - 模态框在 Ajax 调用完成后弹出,而不是之前或期间弹出,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55830200/
从 Redis 获取消息时,onDone:(){print('done')} 从未起作用。 import 'package:dartis/dartis.dart' as redis show PubS
昨天我玩了一些vim脚本,并设法通过循环来对当前输入的内容进行状态栏预测(请参见屏幕截图(灰色+黄色栏))。 问题是,我不记得我是怎么得到的,也找不到我用于该vim魔术的代码片段(我记得它很简单):它
我尝试加载 bash_completion在我的 bash (3.2.25) 中,它不起作用。没有消息等。我在我的 .bashrc 中使用了以下内容 if [ -f ~/.bash_completio
我正在尝试构建一个 bash 完成例程,它将建议命令行标志和合适的标志值。例如在下面 fstcompose 命令我想比赛套路先建议 compose_filter= 标志,然后建议来自 [alt_seq
当我尝试在重定向符号后完成路径时,bash 完成的行为就好像它仍在尝试在重定向之前完成命令的参数一样。 例如: dpkg -l > /med标签 通过在 /med 之后点击 Tab我希望它完成通往 /
我的类中有几个 CAKeyframeAnimation 对象。 他们都以 self 为代表。 在我的animationDidStop函数中,我如何知道调用来自哪里? 是否有任何变量可以传递给 CAKe
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有一个解决方案可以使用以下方法完成 NSTextField : - (NSArray *)control:(NSControl *)control textView:(NSTextView *)tex
我正在阅读 Passport 的文档,我注意到 serialize()和 deserialize() done()被调用而不被返回。 但是,当使用 passport.use() 设置新策略时在回调函数
在 ubuntu 11.10 上的 Firefox 8.0 中,尽管 img.complete 为 false,但仍会调用 onload 函数 draw。我设法用 setTimeout hack 解决
假设我有两个与两个并行执行的计算相对应的 future 。我如何等到第一个 future 准备好?理想情况下,我正在寻找类似于Python asyncio's wait且参数为return_when=
我正在寻找一种 Java 7 数据结构,其行为类似于 java.util.Queue,并且还具有“最终项目已被删除”的概念。 例如,应可以表达如下概念: while(!endingQueue.isFi
这是一个简单的问题。 if ($('.dataTablePageList')) { 我想做的是执行一个 if 语句,该语句表示如果具有 dataTablesPageList 类的对象也具有 menu
我用replaceWith批量替换了许多div中的html。替换后,我使用 jTruncate 来截断文本。然而它不起作用,因为在执行时,replaceWith 还没有完成。 我尝试了回调技巧 ( H
有没有办法调用 javascript 表单 submit() 函数或 JQuery $.submit() 函数并确保它完成提交过程?具体来说,在一个表单中,我试图在一个 IFrame 中提交一个表单。
我有以下方法: function animatePortfolio(fadeElement) { fadeElement.children('article').each(function(i
我刚刚开始使用 AndEngine, 我正在像这样移动 Sprite : if(pValueY < 0 && !jumping) { jumping =
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我的应用程序有一个相当奇怪的行为。我在 BOOT_COMPLETE 之后启动我的应用程序,因此在我启动设备后它是可见的。 GUI 响应迅速,一切正常,直到我调用 finish(),按下按钮时,什么都没
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