jQuery AJAX从本地主机加载JSONP，但不返回数据 [英] jQuery AJAX loads JSONP from localhost but doesn't return data

问题描述

我正在尝试从本地主机加载一些JSONP.我有一个PHP webapp，如果提供了它，它会返回带有回调的JSON.返回的JSON是100％有效的(已通过JSON Validator检查).网址看起来像这样:

I'm trying to load some JSONP from my localhost. I have a PHP webapp that returns JSON with a callback if it is provided. The JSON that is returned is 100% valid (checked with JSON Validator). The url looks like this:

http://localhost/backstage/public/data/acties?callback=?

现在，当我尝试使用jQuery AJAX加载此数据时，它会提示我错误"，表示加载失败.

Now when I try to load this data with jQuery AJAX, it gives me the alert saying 'error', implying that the loading has failed.

var url = "http://localhost/backstage/public/data/acties";

$("#debug").click(function() {
    console.log("getting data from " + url);
    $.ajax({
       type:'GET',
       url: url,
       dataType:'jsonp',
       success: function(data){
           alert('loaded');
       },
       error: function(data){
           alert('error');        
       }
    });
});

但是，当我转到网络"标签时，我看到了以下请求:

However, when I go to the network tab I see a request has been made to:

http://localhost/backstage/public/data/acties?callback=jQuery19008035339566413313_1358941083680&_=1358941083681

此文件中的内容是有效的JSON(同样，我使用JSON Validator对其进行了验证).数据似乎并没有最终出现在我的JavaScript数据变量中.

And the content in this file is valid JSON (again, I validated it using JSON Validator). The data just doesn't seem to end up in my data variable in JavaScript.

作为参考，这是我的PHP(Zend 1.12)代码:

For reference, this is my PHP (Zend 1.12) code:

public function actiesAction()
    {
        $data = new Application_Model_DbTable_Actie();
        $data = $data->fetchAll();
        $callback = htmlspecialchars($_GET["callback"]);
        $data = Zend_Json::encode($data);

        echo $callback.'('.$data.');';     
    }

这是您转到

http://localhost/backstage/public/data/acties?callback=?

-> http://pastebin.com/tazcUQAW

有人知道如何解决此问题吗?

Does anyone know how to fix this please?

推荐答案

我发现了错误:我的基本布局在响应中仍然包含HTML代码.我按照在ZEND中处理JSONP调用(第二个答案)中的步骤进行操作，现在可以正常工作了完美.无论如何，谢谢您的帮助！

I found the error: my base layout was still including HTML code in the response. I followed the steps in handle JSONP calls in ZEND (second answer) and now it works perfectly. Thanks for the help anyway!

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