.Net直連oracle資料庫及連線池的配置
阿新 • • 發佈:2019-01-26
OS:64位win10。
VS:2017。
.NET:4.0。
Oracle 的dll檔案版本為12.2.0.1。
經過測試發現,需要將以下檔案拷貝到可執行檔案所在的目錄,或者可執行檔案能找到的目錄下即可:Oracle.DataAccess.dll、oci.dll、oracore12.dll、oraociei12.dll、oraons.dll、OraOps12.dll。
測試程式碼如下:
string connectionString = "Data Source=(DESCRIPTION=(ADDRESS_LIST=" +
"(ADDRESS=(PROTOCOL=TCP)(HOST=host)(PORT=1521)))" +
"(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=orcl)));" +
"User Id=user;Password=pwd;Pooling = True;Max Pool Size = 10;Min Pool Size = 10;";
string queryString = "INSERT INTO GIS_GPS_RY(TERMINALID, LONGITUDE, LATITUDE,GPSTIME) values (:V_TERMINALID, :V_LONGITUDE, :V_LATITUDE,:V_GPSTIME)" ;
using (OracleConnection connection = new OracleConnection(connectionString))
{
connection.Open();
try
{
OracleCommand cmd = connection.CreateCommand();
cmd.CommandText = queryString;
OracleParameter[] paras =
{
new OracleParameter { ParameterName = "V_TERMINALID" ,Value=utils.GenerateTimeStamp(System.DateTime.Now),OracleDbType = OracleDbType.Varchar2},
new OracleParameter { ParameterName = "V_LONGITUDE",Value=utils.GenerateTimeStamp(System.DateTime.Now),OracleDbType = OracleDbType.Varchar2},
new OracleParameter { ParameterName = "V_LATITUDE",Value=utils.GenerateTimeStamp(System.DateTime.Now),OracleDbType = OracleDbType.Varchar2},
new OracleParameter { ParameterName = "V_GPSTIME",Value=System.DateTime.Now }
};
if (paras != null)
{
cmd.Parameters.AddRange(paras);
}
//System.DateTime.Now.ToString();
//cmd.Parameters.Add("V_TERMINALID", OracleDbType.Varchar2, ParameterDirection.Input).Value = utils.GenerateTimeStamp(System.DateTime.Now);
//cmd.Parameters.Add("V_LONGITUDE", OracleDbType.Varchar2, ParameterDirection.Input).Value = utils.GenerateTimeStamp(System.DateTime.Now);
//cmd.Parameters.Add("V_LATITUDE", OracleDbType.Varchar2, ParameterDirection.Input).Value = utils.GenerateTimeStamp(System.DateTime.Now);
//cmd.Parameters.Add("V_GPSTIME", OracleDbType.Date, ParameterDirection.Input).Value = System.DateTime.Now;
cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
}
catch (Exception ex)
{
MessageBox.Show(ex.StackTrace);
MessageBox.Show(ex.Message);
}
finally
{
connection.Close();
}
}
連線字串後加“Pooling = True;Max Pool Size = 10;Min Pool Size = 1;”這三個引數即可實現應用連線池。
Pooling:是否啟用連線池,True為啟用
Max Pool Size:連線池最大連線數
Min Pool Size:連線池最小連線數