免安装oracle驱动访问数据库

try
             {
                 string connStr = "Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.110.110)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=ZXITORCL)));Persist Security Info=True;User ID=tj122webnew;Password=tj122webnew;";
                 using (var conn = new OracleConnection(connStr))
                 {
                     conn.Open();
                     Response.Write("连接成功！");
                 }
             }
             catch (OracleException ex)
             {
                 throw new Exception(ex.Message);
             }

注意：需要下载Oracle.ManagedDataAccess.dll动态库，同时该动态库运行在.net 4.0中