Question

我在C＃中创建了一个程序，它将数据插入到Oracle数据库中。这是非常程序化的，我想改进我的程序（和我的知识）来使用类。我在调用带参数的方法时遇到了一些麻烦。这是我的代码：

public class Oracle {
    public void Insert() {
    string oracleConnectionString = "User Id=" + l_orauser + "; Password=" + l_orapass + "; Data Source=" + l_oradb;
    using (OracleConnection oracleConnection = new OracleConnection(oracleConnectionString)) {
        oracleConnection.Open();
        OracleGlobalization oracleSession = oracleConnection.GetSessionInfo();
        oracleSession.DateFormat = "dd-mm-yyyy hh24:mi:ss";
        oracleConnection.SetSessionInfo(oracleSession);
        OracleTransaction oracleTransaction = oracleConnection.BeginTransaction();
        OracleCommand oracleCommand = oracleConnection.CreateCommand();
        oracleCommand.Transaction = oracleTransaction;
        oracleCommand.CommandType = CommandType.Text;
        string oracleCommandText = "insert into T1 (C1, C2, C3) values (:l_c1, :l_c2, :l_c3)";
        oracleCommand.CommandText = oracleCommandText;
        oracleCommand.BindByName = true;
        oracleCommand.Parameters.Add("l_c1", OracleDbType.Byte, 3).Value = l_c1;
        oracleCommand.Parameters.Add("l_c2", OracleDbType.Date).Value = l_c2;
        oracleCommand.Parameters.Add("l_c3", OracleDbType.Varchar2, 1024).Value = l_c3;
        try {
            oracleCommand.ExecuteNonQuery();
            oracleTransaction.Commit();
        }
        catch (Exception ex) {
            oracleTransaction.Rollback();
            MessageBox.Show(ex.Message);
        }
        finally {
            oracleCommand.Parameters.Clear();
            oracleCommand.Dispose();
            oracleTransaction.Dispose();
            oracleConnection.Close();
            oracleConnection.Dispose();
        }
    }
}
}

我想用一些参数来调用它 - 变量：l_orauser，l_orapass，l_oradb，l_c1，l_c2，l_c3，它们取自表单的元素，例如textbox，datetimepicker。我怎么能这样做？

public static void Main(string[] args) {
var testOracle = new Oracle();
testOracle.Insert();
}

Answer 1

好的，所以在与Tim Freese讨论后，我决定使用构造函数和一系列参数。

作为参考，我添加了代码，也许有人会发现它很有用：

public static void Main(string[] args) {
string oracleUser, oraclePassword, oracleDatabase;
List<string> oracleArguments = new List<string>();
//0 = oracleUser
//1 = oraclePassword
//2 = oracleDatabase
//3 = oracleCommandText
//4+ = oracleCommand.Parameters
l_orauser = "schema1";
l_orapass = "schema1pass";
l_oradb = "db1";
oracleArguments.Add(l_orauser);
oracleArguments.Add(l_orapass);
oracleArguments.Add(l_oradb);
Oracle testOracle = new Oracle();
testOracle.Insert(oracleArguments);
}

Oracle课程：

public class Oracle {
public void Insert(List<string> oracleArguments) {
    string oracleConnectionString = "User Id=" + oracleArguments[0] + "; Password=" + oracleArguments[1] + "; Data Source=" + oracleArguments[2];
    using (OracleConnection oracleConnection = new OracleConnection(oracleConnectionString)) {
        //do something
    }
}
}

如何使用参数调用C＃中的Oracle连接方法？

1 个答案: