学步园

 1private void Button1_Click(object sender, System.EventArgs e)//上传
 2  {
 3   int intDocLen = File1.PostedFile.ContentLength;
 4   byte[] Docbuffer = new byte[intDocLen];
 5   Stream objStream;
 6   objStream = File1.PostedFile.InputStream;
 7   objStream.Read(Docbuffer, 0, intDocLen);
 8   OracleConnection con = new OracleConnection("user id=nj;data source=njoraclelocal;password=124578;");
 9   con.Open();
10   OracleCommand cmd = new OracleCommand("InSert Into AAAA(WORD) Values(:word)",con);
11   OracleParameter para = new OracleParameter(":word",OracleType.Blob);
12   para.Value = Docbuffer;
13   para.Size = Docbuffer.Length;
14   cmd.Parameters.Add(para);
15   cmd.ExecuteNonQuery();
16   con.Close();
17//   objStream.Close();
18  }
19
20  private void Button2_Click(object sender, System.EventArgs e)//下载
21  {
22//   OracleConnection con = new OracleConnection("user id=nj;data source=NJORACLELOCAL;password=124578;");
23//   OracleCommand cmd = new OracleCommand("Select * From AAAA",con);
24//      con.Open();
25//   OracleDataReader dr = cmd.ExecuteReader();
26//   dr.Read();
27//   Byte[] words = (Byte[])dr["WORD"];
28//   Response.OutputStream.Write(words,0,words.Length);
29
30
31   string queryString = "Select * From AAAA where ROWID = 'AAAHsVAAJAAAAuHAAB'";
32   OracleConnection conn = new OracleConnection("user id=nj;data source=NJORACLELOCAL;password=124578;");
33   OracleCommand cmd = new OracleCommand(queryString,conn);
34   conn.Open();
35   OracleDataReader dr = cmd.ExecuteReader();
36   if (dr.Read())
37   {
38    Response.Clear();
39    Response.AddHeader("Content-Type", "application/msword");
40//    Response.AddHeader("content-type","text/html");
41    Response.BinaryWrite((byte[])dr["WORD"]);//WDSJ为该BLOB字段名
42   }
43   dr.Close();
44   conn.Close();
45
46  }
47
48

 

PS:给下载文件指定默认名

　　　Response.AddHeader("Content-Type", StrDownType(fileExten));
　　　Response.AddHeader("Content-Disposition", "attachment;filename="+HttpUtility.UrlEncode("自定义文件名", System.Text.Encoding.UTF8)+"."+fileExten);

 　　 /// <summary>
        /// 根据后缀确定流类型
        /// </summary>
        /// <param name="extension">后缀名</param>
        /// <returns></returns>
        private static string StrDownType(string extension)
        {
            if (extension == "doc" || extension == "docx")
            {
                return "application/msword";
            }
            else if (extension == "xls" || extension == "xlsx")
            {
                return "application/vnd.ms-excel";
            }
            return "text/html";
        }