Question

当用户单击调用Jquery Ajax函数的行时，我有一个使用JQuery手动创建的html表。此函数调用ASP.NET MVC控制器，该控制器调用在内部从文件服务器中提取文件，并将其存储在文件夹“ .. \ download \”下的Project Directory中。我需要在浏览器中返回此文件JQuery和可下载文件。

调用API并将文件（任何类型）存储在项目目录中：

var response = _httpClient.GetAsync(documentURL).Result;
HttpContent content = response.Content;
string currfile = System.Web.Hosting.HostingEnvironment.MapPath(string.Format("~/download/"));
System.IO.DirectoryInfo di = new DirectoryInfo(currfile);
foreach (FileInfo file in di.GetFiles())
{
    file.Delete();
}
using (var file = new FileStream(System.Web.Hosting.HostingEnvironment.MapPath(string.Format("~/download/{0}.{1}", fileName, fileExt)), FileMode.CreateNew))
{ // create a new file to write to
    Stream contentStream = content.ReadAsStreamAsync().Result; // get the actual content stream                
    contentStream.CopyToAsync(file); // copy that stream to the file stream
    file.FlushAsync(); // flush back to disk before disposing
}

jQuery通话：

$("#DivAttachmentDetails  tr:not(:first)").click(function () {
    var DocumentumId = $(this).find("td:eq(0)").find(':input[name=hdnDocumentumId]').val();//$('#hdnDocumentumId').val();        
         $.ajax({
              type: 'POST',
              url: getExactPath('/Supplier/GetDocument'),
              data: {
                  documetObj: DocumentumId
              },
              dataType: 'json',
              async: false,
                  success: function (jsonData) {                              
              },
              error: function () {
                  alert("Unable to fetch the Document.");
              }
             });
             });

如何使用JQuery将文件立即返回浏览器。

Answer 1

将文件添加到“ .. \ download \ filename.pdf”后，我将发送回连接的foldername + filename。我存储在解决方案目录文件夹中，因为页面使用率少于5个用户。

string returnurl:
using (var file = new FileStream(System.Web.Hosting.HostingEnvironment.MapPath(string.Format("~/download/{0}.{1}", fileName, fileExt)), FileMode.CreateNew))
{ // create a new file to write to
    Stream contentStream = content.ReadAsStreamAsync().Result; // get the actual content stream                
    contentStream.CopyToAsync(file); // copy that stream to the file stream
    file.FlushAsync(); // flush back to disk before disposing

    returnurl =  "\download\"+ fileName+"."+fileExt
}

jQuery：

success: function (jsonData) 
{                              
    window.open(jsonData.returnurl) // this opens the file in new windows as "http:\\projectname:8080\download\yourfilename.pdf" ( any file type)
},

如何使用jQuery从Project目录下载或获取文件

1 个答案: