正如以下链接所示,jQuery的$ .ajax调用返回一个ajax对象,以后可以在需要时用于中止调用。
Abort Ajax requests using jQuery
我的项目使用$ .load(),它返回对象模式,而不是ajax对象($(“”)。load())。
有没有办法可以从$ .load获取ajax对象?
答案 0 :(得分:0)
我认为你不能用当前的API做到这一点。但是,感谢开源,请查看load
函数的源代码(来自jquery-1.6.2.js
):
jQuery.fn.extend({
load: function( url, params, callback ) {
if ( typeof url !== "string" && _load ) {
return _load.apply( this, arguments );
// Don't do a request if no elements are being requested
} else if ( !this.length ) {
return this;
}
var off = url.indexOf( " " );
if ( off >= 0 ) {
var selector = url.slice( off, url.length );
url = url.slice( 0, off );
}
// Default to a GET request
var type = "GET";
// If the second parameter was provided
if ( params ) {
// If it's a function
if ( jQuery.isFunction( params ) ) {
// We assume that it's the callback
callback = params;
params = undefined;
// Otherwise, build a param string
} else if ( typeof params === "object" ) {
params = jQuery.param( params, jQuery.ajaxSettings.traditional );
type = "POST";
}
}
var self = this;
// Request the remote document
jQuery.ajax({
url: url,
type: type,
dataType: "html",
data: params,
// Complete callback (responseText is used internally)
complete: function( jqXHR, status, responseText ) {
// Store the response as specified by the jqXHR object
responseText = jqXHR.responseText;
// If successful, inject the HTML into all the matched elements
if ( jqXHR.isResolved() ) {
// #4825: Get the actual response in case
// a dataFilter is present in ajaxSettings
jqXHR.done(function( r ) {
responseText = r;
});
// See if a selector was specified
self.html( selector ?
// Create a dummy div to hold the results
jQuery("<div>")
// inject the contents of the document in, removing the scripts
// to avoid any 'Permission Denied' errors in IE
.append(responseText.replace(rscript, ""))
// Locate the specified elements
.find(selector) :
// If not, just inject the full result
responseText );
}
if ( callback ) {
self.each( callback, [ responseText, status, jqXHR ] );
}
}
});
return this;
}
}
一个稍微危险但可行的解决方案是复制该源并进行更改,以便它返回ajax
调用返回的内容,而不是return this
。这很危险,因为它可能依赖于内部jquery行为,这种行为可能会在未来的版本中发生变化,恕不另行通知。
我可能会使用不同名称的新函数扩展jQuery.fn,也许是loadAjax
如果您使用的是不同版本的jquery,请从那里开始使用。