wcf调用oracle存储过程

 1 public IList<ACCP_RAIN> QueryAll(string beginTime, string endTime, string type)

 2         {

 3             beginTime = "2012-1-1"; endTime = "2014-10-10"; type = "ZQ";

 4             List<ACCP_RAIN> list = new List<ACCP_RAIN>();

 5             DbDataReader reader = null;

 6 

 7             try

 8             {

 9                 OracleParameter[] paras = new OracleParameter[4];

10                 OracleParameter para1 = new OracleParameter("ptm1", OracleType.VarChar);

11                 para1.Value = beginTime;

12                 OracleParameter para2 = new OracleParameter("ptm2", OracleType.VarChar);

13                 para2.Value = endTime;

14                 OracleParameter para3 = new OracleParameter("retp", OracleType.VarChar);

15                 para3.Value = type;

16                 OracleParameter para4 = new OracleParameter("p_cur", OracleType.Cursor);

17                 para4.Direction = ParameterDirection.Output;

18                 paras[0] = para1;

19                 paras[1] = para2;

20                 paras[2] = para3;

21                 paras[3] = para4;

22                 

23                 DbConnection conn = DbFactory.GetDbCon();

24                 conn.Open();

25                 DbTransaction trans = conn.BeginTransaction();

26                 reader = (DbHelper as OracleHelper).ExecuteReader(conn, trans, CommandType.StoredProcedure, "GETDRP.PROC_GETDRP", paras);

27                 while (reader.Read())

28                 {

29                     list.Add(SqlDataToEntity.ToEntity<ACCP_RAIN>(reader));

30                 }

31                 trans.Dispose();

32                 conn.Close();

33                 conn.Dispose();

34             }

35             catch (Exception ex)

36             {

37                 return null;

38             }

39             finally

40             {

41                 if (reader != null) reader.Close();

42             }

43             return list;

44         }

View Code

  public DbDataReader ExecuteReader(DbConnection connection, DbTransaction trans, CommandType commandType, string commandText, params DbParameter[] cmdParms)

        {

            DbDataReader reader2;

            OracleCommand cmd = new OracleCommand();

            if ((cmdParms != null) && (cmdParms.Length == 0))

            {

                cmdParms = null;

            }

            try

            {

                PrepareCommand((OracleConnection)connection, (OracleTransaction)trans, cmd, commandType, commandText, (OracleParameter[])cmdParms);

                DbDataReader reader = cmd.ExecuteReader(CommandBehavior.CloseConnection);

                cmd.Parameters.Clear();

                reader2 = reader;

            }

            catch (Exception exception)

            {

                connection.Dispose();

                throw exception;

            }

            finally

            {

                cmd.Dispose();

            }

            return reader2;

        }

View Code

 private static void PrepareCommand(OracleConnection connection, OracleTransaction trans, OracleCommand cmd, CommandType cmdType, string cmdText, OracleParameter[] cmdParms)

        {

            if (trans == null)

            {

                cmd.Connection = connection;

            }

            else

            {

                cmd.Connection = trans.Connection;

                cmd.Transaction = trans;

            }

            if (cmd.Connection.State != ConnectionState.Open)

            {

                cmd.Connection.Open();

            }

            cmd.CommandType = cmdType;

            cmd.CommandText = cmdText;

            cmd.CommandTimeout = 0;

            if (cmdParms != null)

            {

                foreach (OracleParameter parameter in cmdParms)

                {

                    cmd.Parameters.Add(parameter);

                }

            }

        }

View Code