从ajax和ActionResult下载文件 [英] Download file from ajax and ActionResult

问题描述

我想在浏览器上使用ajax和ActionResult下载文件。该文件从我的ActionResult下载并返回。

I want to download files on browser with ajax and ActionResult. The file is downloaded and returned from my ActionResult.

我看到Http查询是可以的，并且在响应正文中查看数据。问题是文件不建议保存在浏览器中。

I see the Http query is ok and see the data in the response body. The problem is that the file is not proposed to save in the browser.

似乎都很好。我在教程和论坛上看到的一切都像我做的一样，但是我不要说XD。我不明白我和其他人之间有什么区别。

All seems good. All that I seen in tutorial and forum were like I done but mine don't word XD. I don't understand what is the difference between mine and the others.

这是我的ActionResult：

Here is my ActionResult :

public ActionResult ShippingDownloadDNPriority(string SALE_GUID)
{
    int supId = -1;
    int.TryParse(Session["SupId"].ToString(), out supId);
    if (supId < 0)
        return null;

    WebResponse response = CallApi.DownloadAndCreateDN(Session["UserLogin"].ToString(), Session["IdentConnect"].ToString(), SALE_GUID, supId, true);
    Stream responseStream = response.GetResponseStream();

    var cd = new System.Net.Mime.ContentDisposition
    {
        FileName = "myfile.pdf",
        Inline = false,
    };
    Response.Headers.Add("Content-Disposition", cd.ToString());
    Response.ContentType = "application/octet-stream";
    return File(responseStream, System.Net.Mime.MediaTypeNames.Application.Pdf, "myfile.pdf");
}

public static WebResponse DownloadAndCreateDN(string login, string session, string SALE_GUID, int supid, bool priority)
{
    string[] res = new string[2];

    StringBuilder postData = new StringBuilder();
    postData.AppendLine("{");
    postData.AppendLine(string.Format("\"login\":\"{0}\",", login));
    postData.AppendLine(string.Format("\"session\":\"{0}\",", session));
    postData.AppendLine(string.Format("\"saleguid\":\"{0}\",", SALE_GUID));
    postData.AppendLine(string.Format("\"supid\":{0},", supid));
    postData.AppendLine(string.Format("\"prority\":{0}", priority.ToString().ToLower()));
    postData.AppendLine("}");

    ASCIIEncoding ascii = new ASCIIEncoding();
    byte[] postBytes = ascii.GetBytes(postData.ToString());

    string url = Properties.Settings.Default.ISAPIAddress + "deliverynote/create";

    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    request.Method = "POST";
    request.ContentType = "application/json";
    request.ContentLength = postBytes.Length;

    Stream postStream = request.GetRequestStream();
    postStream.Write(postBytes, 0, postBytes.Length);
    postStream.Flush();
    postStream.Close();

    return request.GetResponse();
}

这是我的javascript：

Here is my javascript :

$.ajax({
    url: '../Shipping/ShippingDownloadDNPriority?SALE_GUID=XXXXXXXXXXXXXX',
    data: { SALE_GUID: DropShipping.GetRowKey(rowIndexSale) },
    async: false,
    //success: function (data) { window.downloadFile = data; }
});

感谢所有

推荐答案

我改变了想法。我只是发送我的pdf（从我的控制器）在64基地，并在ajax中：

I changed of idea. I simply send my pdf (from my controller) in 64 base and make in the ajax :

success: function (data) {
     window.open("data:application/pdf;base64," + data.data, '_blank'); 
}

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