使用流上传WORD和下载WORD（oracle）

private void Button1_Click(object sender, System.EventArgs e)
{
int intDocLen = File1.PostedFile.ContentLength;
byte[] Docbuffer = new byte[intDocLen];
Stream objStream;
objStream = File1.PostedFile.InputStream;
objStream.Read(Docbuffer, 0, intDocLen);
OracleConnection con = new OracleConnection("user id=nj;data source=njoraclelocal;password=124578;");
con.Open();
OracleCommand cmd = new OracleCommand("InSert Into AAAA(WORD) Values(:word)",con);
OracleParameter para = new OracleParameter(":word",OracleType.Blob);
para.Value = Docbuffer;
para.Size = Docbuffer.Length;
cmd.Parameters.Add(para);
cmd.ExecuteNonQuery();
con.Close();
// objStream.Close();
}

private void Button2_Click(object sender, System.EventArgs e)
{
// OracleConnection con = new OracleConnection("user id=nj;data source=NJORACLELOCAL;password=124578;");
// OracleCommand cmd = new OracleCommand("Select * From AAAA",con);
// con.Open();
// OracleDataReader dr = cmd.ExecuteReader();
// dr.Read();
// Byte[] words = (Byte[])dr["WORD"];
// Response.OutputStream.Write(words,0,words.Length);

string queryString = "Select * From AAAA where ROWID = 'AAAHsVAAJAAAAuHAAB'";
OracleConnection conn = new OracleConnection("user id=nj;data source=NJORACLELOCAL;password=124578;");
OracleCommand cmd = new OracleCommand(queryString,conn);
conn.Open();
OracleDataReader dr = cmd.ExecuteReader();
if (dr.Read())
{
Response.Clear();
Response.AddHeader("Content-Type", "application/msword");
// Response.AddHeader("content-type","text/html");
Response.BinaryWrite((byte[])dr["WORD"]);//WDSJ为该BLOB字段名
}
dr.Close();
conn.Close();

}