使用ajax请求多个url

嗨，我试图在按钮单击时使用ajax调用多个URL，但它无法正常工作

这是我的代码

    function loadXMLDoc(cfun) { 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=cfunc; xmlhttp.open("GET",url/sendmessage.php?user=password=&mobile=7828208357&message=hello dear shakti&sender=&type=3INFORM",true); xmlhttp.send(); } function myFunction() { loadXMLDoc("GET","demo.html",function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { document.getElementById("myDiv").innerHTML=xmlhttp.responseText; } }); }    
AJAX
 Request data 
 
   

我错的地方我怎样才能实现这一目标

任何帮助将不胜感激

Answer 1

阅读承诺并推迟 。

 var ajax1 = $.ajax({ dataType: "json", url: "url", async: true, success: function(result) {} }); var ajax2 = $.ajax({ dataType: "json", url: "url", async: true, success: function(result) {} }); $.when( ajax1 , ajax2 ).done(function( a1, a2 ) { // a1 and a2 are arguments resolved for the page1 and page2 ajax requests, respectively. // Each argument is an array with the following structure: [ data, statusText, jqXHR ] var data = a1[ 0 ] + a2[ 0 ]; // a1[ 0 ] = "Whip", a2[ 0 ] = " It" if ( /Whip It/.test( data ) ) { alert( "We got what we came for!" ); } }); 

另见jQuery.when（）

Answer 2

你可以使用异步来做到这一点：