HttpContext.Current.Response.WriteFile 不支持路径格式

Question

异常在ASP.NET"The given file format is not supported",在 HttpContext.Current.Response.WriteFile, 下面是我的代码

string DocumentPath = "D:/Live//web/";

Path.Combine(DocumentPath, FileName);

HttpContext.Current.Response.Clear();
HttpContext.Current.Response.ClearHeaders();
HttpContext.Current.Response.AddHeader("Content-Disposition", "inline; filename=" + FileName);
HttpContext.Current.Response.AddHeader("Content-Type", "application/octet-stream");
HttpContext.Current.Response.WriteFile(DocumentPath);
HttpContext.Current.Response.End();
response.Write(DocumentPath);

Answer 1

我认为您还必须插入文件名。

试试这个-

HttpContext.Current.Response.WriteFile(DocumentPath+ FileName);

更新

试试这行代码

Response.ContentType = "application/vnd.ms-excel";
Response.AddHeader("Content-Disposition", "attachment;filename="test.xls");

而不是这个-

HttpContext.Current.Response.AddHeader("Content-Disposition", "inline; filename=" + FileName);
HttpContext.Current.Response.AddHeader("Content-Type", "application/octet-stream");

更新 2

简短的回答是，出于安全原因，您不能将文件保存在客户端的计算机上。所以你能做的只有这一行

Response.AddHeader("Content-Disposition", "attachment;filename="+fileName);

没有 DocumentPath.

最后更新

//write file to the server
    string lines = "First line.\r\nSecond line.\r\nThird line.";
            System.IO.StreamWriter file = new System.IO.StreamWriter("test.txt");
          file.WriteLine(lines);

      file.Close();
//read the file from server
      string david = File.ReadAllText("test.txt");

HttpContext.Current.Response.WriteFile 不支持路径格式

HttpContext.Current.Response.WriteFile path's format is not supported

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