使用ajax请求多个url

Question

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

<!DOCTYPE html>
<html>
<head>
<script>
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;
    }
  });
}
</script>
</head>
<body>

<h2>AJAX</h2>
<button type="button" onclick="myFunction()">Request data</button>
<div id="myDiv">
</div>

</body>
</html>

Run Code Online (Sandbox Code Playgroud)

我错的地方我怎样才能做到这一点

任何帮助将不胜感激

Answer 1

Ham*_*mix 6

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!" );
   }
});

Run Code Online (Sandbox Code Playgroud)

另见jQuery.when()

归档时间：	11 年，2 月前
查看次数：	10125 次
最近记录：	9 年，2 月前