ASHX 图像下载另存为 ASHX
当用户单击我的链接时，它会弹出“另存为”对话框，但它希望在 IE 以外的任何其他浏览器中将其另存为 ashx 文件。该文件是从数据库中获取的标准 jpeg。什么会导致这种情况发生？
string id = ctx.Request.QueryString["id"];
SqlConnection con = new SqlConnection();
SqlCommand cmd = new SqlCommand("EBig", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@EID", id);
byte[] pict = null;
ctx.Response.ContentType = "image/pjpeg";
try
{
con.Open();
pict = (byte[])cmd.ExecuteScalar();
ctx.Response.Clear();
ctx.Response.AppendHeader("content-disposition", "attachment;");
ctx.Response.ContentType = "image/pjpeg";
ctx.Response.BinaryWrite(pict);
ctx.Response.Flush();
ctx.Response.End();
}
catch
{
}
finally
{
con.Close();
}
When a user clicks my link it brings up the save as dialog, but it wants to save it as a ashx file in any other browser than IE. The file is standard jpeg that is being taken from a database. What would cause this to do?
string id = ctx.Request.QueryString["id"];
SqlConnection con = new SqlConnection();
SqlCommand cmd = new SqlCommand("EBig", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@EID", id);
byte[] pict = null;
ctx.Response.ContentType = "image/pjpeg";
try
{
con.Open();
pict = (byte[])cmd.ExecuteScalar();
ctx.Response.Clear();
ctx.Response.AppendHeader("content-disposition", "attachment;");
ctx.Response.ContentType = "image/pjpeg";
ctx.Response.BinaryWrite(pict);
ctx.Response.Flush();
ctx.Response.End();
}
catch
{
}
finally
{
con.Close();
}
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Hanselman 对此有一篇文章。它涉及在
Content-Disposition响应标头上设置名为filename的附加属性。相关的RFC在这里，相关部分是2.3：
Hanselman has a post on this. It involves setting an additional attribute named
filenameon yourContent-Dispositionresponse header.The related RFC is here, relevant section is 2.3:
您需要添加文件名：
You need to add the filename: