IE要下载JSON结果.... MVC3 [英] IE wants to download JSON result....MVC3

问题描述

从用户到我们的服务器我MVC3应用程序的上传文件。我返回JsonResult显示任何错误，如果有的话：

My MVC3 app uploads documents from the user to our server. I am returning a JsonResult to display any errors, if any:

  [HttpPost] 
    public JsonResult SaveDocument(DocumentModel model, HttpPostedFileBase postedFile)
    {
         //my wonderful code
         return Json(new { success = true, message="ok" });

     }

继承人如何提交请求：

Heres how i submit the request:

 var isSubmitting = false;
  var addDocumentOptions = {
       beforeSubmit: beforeAddDocumentSubmit,  // pre-submit callback 
      success: afterDocumentSubmit  // post-submit callback 
  };
  $('#btnCreateDocument').click(function (e) {
      e.preventDefault();
      $('#divError').html('');
      if (!isSubmitting) {
          $('#createDocForm').submit();
      }
    });

此JavaScript函数的上传完成后运行：

This javascript function runs when the upload is complete:

    function afterDocumentSubmit(responseText, statusText, xhr, $form) {
        if (responseText.success) {
            //no errors
          } else {
             $('#divError').html('Error: ' + responseText.message);
     }
   }

在FF，铬等，我的JavaScript code运行正常，但在IE浏览器，浏览器要下载JSON结果为文本。我得到一个下载/打开文件对话框不应该出现的对话框。如何让我的IE不能下载我的JSON结果和行为像其他浏览器？谢谢

In FF, Chrome etc., my javascript code runs fine, but in IE, the browser wants to download the Json result as text. I get a download/open file dialog box that shouldnt appear. How do i make IE not download my Json result and behave like the other browsers? Thanks

推荐答案

我遇到了类似的问题做同样的Spring MVC中爪哇。问题是，春天是返回的Content-Type JSON结果为应用程序/ JSON ，这似乎让IE要下载它。你可以尝试改变内容类型为文本/纯; IE不会提示你下载的文件在这种情况下。我怀疑，类似的东西可能会发生在这里。

I ran into a similar problem doing the same in Spring MVC on Java. The problem was that Spring was returning the content-type of the JSON result as application/json, which seems to make IE want to download it. You can try changing the content-type to text/plain; IE won't prompt you to download the file in this case. I suspect that something similar might be happening here.

您可以尝试：

return Json(new { success = true, message = "ok" }, "text/plain");

在应对新问题：问题是，的responseText 只是一个字符串。你需要做的是将其转换成一个JavaScript对象。你可以这样说：

In response to your new problem: the issue is that responseText is just a string. What you need to do is to convert it into a Javascript Object. You can do it like this:

var response = JSON.parse(responseText);
if(response.success) {
   ...
}

大多数浏览器都支持 JSON.parse（）来。如果您在使用不兼容的浏览器的问题，你可以随时使用 JSON JavaScript库的。

Most browsers support JSON.parse(). If you're having issues with non-compliant browsers, you can always use the JSON Javascript Library.

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