无为清净楼资源网 Design By www.qnjia.com
"codetitle">复制代码 代码如下:
(function ($) {
var ajaxRequest = {};
$.ajaxQueue = function (settings) {
var options = $.extend({ className: 'DEFEARTNAME' }, $.ajaxSettings, settings);
var _complete = options.complete;
$.extend(options, {
complete: function () {
if (_complete)
_complete.apply(this, arguments);
if ($(document).queue(options.className).length > 0) {
$(document).dequeue(options.className);
} else {
ajaxRequest[options.className] = false;
}
}
});
$(document).queue(options.className, function () {
$.ajax(options);
});
if ($(document).queue(options.className).length == 1 && !ajaxRequest[options.className]) {
ajaxRequest[options.className] = true;
$(document).dequeue(options.className);
}
};
})(jQuery);
第3中case
应用场景: 比较典型的是autocomplete控件的操作,这个我们可以使用第2种情况的处理方法,但我们可能只需要最后次按键后返回的结果,这样利用第2种处理方法未免有些浪费。
处理方法: 保留最后一次请求,cancel之前的请求。
复制代码 代码如下:
(function ($) {
var jqXhr = {};
$.ajaxSingle = function (settings) {
var options = $.extend({ className: 'DEFEARTNAME' }, $.ajaxSettings, settings);
if (jqXhr[options.className]) {
jqXhr[options.className].abort();
}
jqXhr[options.className] = $.ajax(options);
};
})(jQuery);
对于这些case都是在多个ajax请求,响应时间不能控制的情况。下面是完整Demo代码。
复制代码 代码如下:
(function ($) {
var jqXhr = {},
ajaxRequest = {};
$.ajaxQueue = function (settings) {
var options = $.extend({ className: 'DEFEARTNAME' }, $.ajaxSettings, settings);
var _complete = options.complete;
$.extend(options, {
complete: function () {
if (_complete)
_complete.apply(this, arguments);
if ($(document).queue(options.className).length > 0) {
$(document).dequeue(options.className);
} else {
ajaxRequest[options.className] = false;
}
}
});
$(document).queue(options.className, function () {
$.ajax(options);
});
if ($(document).queue(options.className).length == 1 && !ajaxRequest[options.className]) {
ajaxRequest[options.className] = true;
$(document).dequeue(options.className);
}
};
$.ajaxSingle = function (settings) {
var options = $.extend({ className: 'DEFEARTNAME' }, $.ajaxSettings, settings);
if (jqXhr[options.className]) {
jqXhr[options.className].abort();
}
jqXhr[options.className] = $.ajax(options);
};
})(jQuery);
var ajaxSleep = (function () {
var _settings = {
type: 'GET',
cache: false,
success: function (msg) {
var thtml = $('#txtContainer').html();
$('#txtContainer').html(thtml + "<br />" + msg);
}
};
return {
get: function (seconds, mode, isAsync) {
var mode = mode || 'ajax',
isAsync = isAsync || false;
$[mode]($.extend(_settings, {
url: "ResponsePage.aspx?second=" + seconds,
async: isAsync,
className: 'GET'
}));
},
post: function (seconds, mode, isAsync) {
var mode = mode || 'ajax',
isAsync = isAsync || false;
$[mode]($.extend(_settings, {
type: 'POST',
url: "PostPage.aspx",
data: { second: seconds },
async: isAsync,
className: 'POST'
}));
}
};
} ());
var launch = function (settings) {
$('#txtContainer').html('');
var mode = settings.mode,
isAsync = settings.isAsync;
ajaxSleep.get(12, mode, isAsync);
ajaxSleep.get(10, mode, isAsync);
ajaxSleep.get(8, mode, isAsync);
ajaxSleep.post(6, mode, isAsync);
ajaxSleep.post(4, mode, isAsync);
ajaxSleep.post(2, mode, isAsync);
}
$(document).ready(function () {
//第1种case
$('#btnLaunchAsync').click(function () {
launch({ isAsync: true });
});
//第2种case
$('#btnLaunchSync').click(function () {
launch({});
});
//第2种case
$('#btnLaunchQueue').click(function () {
launch({ mode: 'ajaxQueue', isAsync: true });
});
//第3种case
$('#btnLaunchSingle').click(function () {
launch({ mode: 'ajaxSingle', isAsync: true });
});
});
default.html
复制代码 代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script src="/UploadFiles/2021-04-02/jquery.min.js"><script type="text/javascript" src="/UploadFiles/2021-04-02/default.js"></head>
<body>
<form id="form1" runat="server">
<input type="button" id="btnLaunchAsync" value="Launch Asynchronous Request" />
<input type="button" id="btnLaunchSync" value="Launch Synchronous Request" />
<input type="button" id="btnLaunchQueue" value="Launch Requested Queue" />
<input type="button" id="btnLaunchSingle" value="Launch Single Request" />
<div id="txtContainer"></div>
</form>
</body>
</html>
PostPage.aspx & ResponsePage.aspx
复制代码 代码如下:
//ResponsePage.aspx
protected void Page_Load(object sender, EventArgs e)
{
int seconds = int.Parse(Request.QueryString["second"]);
Thread.Sleep(seconds*1000);
Response.Write("GET: selpt for "+ seconds.ToString() +" sec(s)");
}
//PostPage.aspx
protected void Page_Load(object sender, EventArgs e)
{
int seconds = int.Parse(Request.Form["second"]);
Thread.Sleep(seconds * 1000);
Response.Write("POST: selpt for " + seconds.ToString() + " sec(s)");
}
后注: 个人能力有限,如有错误敬请指点。这些只是些根据一些特定情况下的处理,如果一个ajax请求能解决的问题切勿利用两个请求来处理,毕竟需要占用资源。我还是相信没有最好的方案,只有最适合的方案。
(function ($) {
var ajaxRequest = {};
$.ajaxQueue = function (settings) {
var options = $.extend({ className: 'DEFEARTNAME' }, $.ajaxSettings, settings);
var _complete = options.complete;
$.extend(options, {
complete: function () {
if (_complete)
_complete.apply(this, arguments);
if ($(document).queue(options.className).length > 0) {
$(document).dequeue(options.className);
} else {
ajaxRequest[options.className] = false;
}
}
});
$(document).queue(options.className, function () {
$.ajax(options);
});
if ($(document).queue(options.className).length == 1 && !ajaxRequest[options.className]) {
ajaxRequest[options.className] = true;
$(document).dequeue(options.className);
}
};
})(jQuery);
第3中case
应用场景: 比较典型的是autocomplete控件的操作,这个我们可以使用第2种情况的处理方法,但我们可能只需要最后次按键后返回的结果,这样利用第2种处理方法未免有些浪费。
处理方法: 保留最后一次请求,cancel之前的请求。
复制代码 代码如下:
(function ($) {
var jqXhr = {};
$.ajaxSingle = function (settings) {
var options = $.extend({ className: 'DEFEARTNAME' }, $.ajaxSettings, settings);
if (jqXhr[options.className]) {
jqXhr[options.className].abort();
}
jqXhr[options.className] = $.ajax(options);
};
})(jQuery);
对于这些case都是在多个ajax请求,响应时间不能控制的情况。下面是完整Demo代码。
复制代码 代码如下:
(function ($) {
var jqXhr = {},
ajaxRequest = {};
$.ajaxQueue = function (settings) {
var options = $.extend({ className: 'DEFEARTNAME' }, $.ajaxSettings, settings);
var _complete = options.complete;
$.extend(options, {
complete: function () {
if (_complete)
_complete.apply(this, arguments);
if ($(document).queue(options.className).length > 0) {
$(document).dequeue(options.className);
} else {
ajaxRequest[options.className] = false;
}
}
});
$(document).queue(options.className, function () {
$.ajax(options);
});
if ($(document).queue(options.className).length == 1 && !ajaxRequest[options.className]) {
ajaxRequest[options.className] = true;
$(document).dequeue(options.className);
}
};
$.ajaxSingle = function (settings) {
var options = $.extend({ className: 'DEFEARTNAME' }, $.ajaxSettings, settings);
if (jqXhr[options.className]) {
jqXhr[options.className].abort();
}
jqXhr[options.className] = $.ajax(options);
};
})(jQuery);
var ajaxSleep = (function () {
var _settings = {
type: 'GET',
cache: false,
success: function (msg) {
var thtml = $('#txtContainer').html();
$('#txtContainer').html(thtml + "<br />" + msg);
}
};
return {
get: function (seconds, mode, isAsync) {
var mode = mode || 'ajax',
isAsync = isAsync || false;
$[mode]($.extend(_settings, {
url: "ResponsePage.aspx?second=" + seconds,
async: isAsync,
className: 'GET'
}));
},
post: function (seconds, mode, isAsync) {
var mode = mode || 'ajax',
isAsync = isAsync || false;
$[mode]($.extend(_settings, {
type: 'POST',
url: "PostPage.aspx",
data: { second: seconds },
async: isAsync,
className: 'POST'
}));
}
};
} ());
var launch = function (settings) {
$('#txtContainer').html('');
var mode = settings.mode,
isAsync = settings.isAsync;
ajaxSleep.get(12, mode, isAsync);
ajaxSleep.get(10, mode, isAsync);
ajaxSleep.get(8, mode, isAsync);
ajaxSleep.post(6, mode, isAsync);
ajaxSleep.post(4, mode, isAsync);
ajaxSleep.post(2, mode, isAsync);
}
$(document).ready(function () {
//第1种case
$('#btnLaunchAsync').click(function () {
launch({ isAsync: true });
});
//第2种case
$('#btnLaunchSync').click(function () {
launch({});
});
//第2种case
$('#btnLaunchQueue').click(function () {
launch({ mode: 'ajaxQueue', isAsync: true });
});
//第3种case
$('#btnLaunchSingle').click(function () {
launch({ mode: 'ajaxSingle', isAsync: true });
});
});
default.html
复制代码 代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script src="/UploadFiles/2021-04-02/jquery.min.js"><script type="text/javascript" src="/UploadFiles/2021-04-02/default.js"></head>
<body>
<form id="form1" runat="server">
<input type="button" id="btnLaunchAsync" value="Launch Asynchronous Request" />
<input type="button" id="btnLaunchSync" value="Launch Synchronous Request" />
<input type="button" id="btnLaunchQueue" value="Launch Requested Queue" />
<input type="button" id="btnLaunchSingle" value="Launch Single Request" />
<div id="txtContainer"></div>
</form>
</body>
</html>
PostPage.aspx & ResponsePage.aspx
复制代码 代码如下:
//ResponsePage.aspx
protected void Page_Load(object sender, EventArgs e)
{
int seconds = int.Parse(Request.QueryString["second"]);
Thread.Sleep(seconds*1000);
Response.Write("GET: selpt for "+ seconds.ToString() +" sec(s)");
}
//PostPage.aspx
protected void Page_Load(object sender, EventArgs e)
{
int seconds = int.Parse(Request.Form["second"]);
Thread.Sleep(seconds * 1000);
Response.Write("POST: selpt for " + seconds.ToString() + " sec(s)");
}
后注: 个人能力有限,如有错误敬请指点。这些只是些根据一些特定情况下的处理,如果一个ajax请求能解决的问题切勿利用两个请求来处理,毕竟需要占用资源。我还是相信没有最好的方案,只有最适合的方案。
标签:
ajax请求
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