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private OracleConnection getConnection()
{
try
{
if (conn == null)
conn = new OracleConnection(connStr);
if (conn.State != ConnectionState.Open)
conn.Open();
return conn;
}
catch (OracleException e)
{
throw e;
}
}
private DataSet getDataSetBySql(string sql)
{
DataSet ds = new DataSet();
try
{
OracleDataAdapter da = new OracleDataAdapter(sql, this.getConnection());
da.Fill(ds);//出错的代码
this.closeConnection();
}
catch
{
//throw;
}
return ds;
}