drfu29983 2013-08-07 14:44
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只有当我将html页面上传到我的服务器时,Ajax才有效

Is it normal that the code below is returning "error" when the html-file is not uploaded to my server, and if so: why? It works perfectly once I upload it to my server, though...

<head>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script>
        function validate() {

                    $.ajax({
                        type:'POST',
                        url:'http://www.mywebsite.com/formvalidate.php',
                        data:{

                        },
                        dataType:'json',
                        success:function (data) {
                            alert('success');


                        },
                        error:function (XMLHttpRequest, textStatus, errorThrown) {
                            alert('error');
                        }
                    });

                }
</script>
</head>
<body>
<input type=button onclick="validate();" value="Click me"/>
</body>
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3条回答 默认 最新

  • doumeba0486 2013-08-07 14:50
    关注

    The reason is cross domain ajax is not allowed, when you were running this file from your browser or local host, it was hitting a different website url for ajax call, which is not allowed.

    But when you uploaded it on the same server, then there were no cross domain issue, so success message

    In order to allow the cross domain ajax call you should use JSONP

    $.ajax({
         url:"testserver.php",
         dataType: 'jsonp', // Notice! JSONP <-- P (lowercase)
         success:function(json){
             // do stuff with json (in this case an array)
             alert("Success");
         },
         error:function(){
             alert("Error");
         },
    });
    

    REFERENCES:- jQuery AJAX cross domain

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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