解决办法：
HttpContext.Current.Response.Clear(); HttpContext.Current.Response.Buffer = true; HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312"); HttpContext.Current.Response.Charset = "gb2312"; HttpContext.Current.Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.xls", string.IsNullOrEmpty(fileName) ? DateTime.Now.ToString("yyyyMMddHHmmssfff") : System.Web.HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8))); HttpContext.Current.Response.BinaryWrite(ms.ToArray()); HttpContext.Current.Response.End();
不过上述方法在firefox上还是乱码
终极解决办法：
Encoding encoding;
string outputFileName = null;
string browser = HttpContext.Current.Request.UserAgent.ToUpper();
if (browser.Contains("MS") == true && browser.Contains("IE") == true)
{
outputFileName = HttpUtility.UrlEncode(fileName);
encoding = System.Text.Encoding.Default;
}
else if (browser.Contains("FIREFOX") == true)
{
outputFileName = fileName;
encoding = System.Text.Encoding.GetEncoding("GB2312");
}
else
{
outputFileName = HttpUtility.UrlEncode(fileName);
encoding = System.Text.Encoding.Default;
}
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.Buffer = true;
HttpContext.Current.Response.ContentEncoding = encoding;
HttpContext.Current.Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.xls", string.IsNullOrEmpty(outputFileName) ? DateTime.Now.ToString("yyyyMMddHHmmssfff") : outputFileName));
HttpContext.Current.Response.BinaryWrite(ms.ToArray());
HttpContext.Current.Response.End();
