读取文件夹中的文件并修改数据库中的数据

OraHelper OraHelper = new OraHelper();

private void btnRead_Click(object sender, EventArgs e)
{

string[] strFiles = Directory.GetFiles(@"E:\网站\百联项目\goodshtml");

string strProductid = string.Empty;
string strSql = string.Empty;
string output = string.Empty;

foreach(string strFile in strFiles)
{
strProductid = Path.GetFileName(strFile);

strProductid = strProductid.Substring(0, strProductid.IndexOf("."));

StreamReader sr = new StreamReader(strFile, System.Text.Encoding.Default);
output = sr.ReadToEnd();

//output=output.Replace(""
strSql = "update web_goods set producthtml= :output where productid='"+strProductid+"'";
OracleParameter[] ps=new OracleParameter[1];

ps[0] = new OracleParameter();
ps[0].ParameterName = ":output";
ps[0].OracleType = OracleType.Clob;
//ps[0].Size = 2000;
ps[0].Value = output;

OraHelper.ExecuteNonQuery(OraHelper.CONN_STRING,CommandType.Text,strSql,ps);

sr.Close();

}