jdbc连接sqlserver,mysql,oracle

class xxx{private static String port = "1433";private static String ip = "192.168.2.163";//mysql : jdbc:mysql:////sqlserver : jdbc:sqlserver//  或者   jdbc:microsoft:sqlserver://
    private static String driverType = "jdbc:sqlserver://";private static String DatabaseName = "test";private static String username = "sa";private static String password = "123456";//sqlerver数据库 com.microsoft.sqlserver.jdbc.SQLServerDriver驱动//mysql 数据库 com.mysql.jdbc.Driver 驱动private static String Drivermanager = "com.microsoft.sqlserver.jdbc.SQLServerDriver";//取得本地保存的自定义标识private static Map<String,String> localMap = new HashMap<>();//接收到数据库返回的自定义标识private static Map<String,Member> databaseMap = new HashMap<>();//本地保存拼接标识文件private static String FileSavePath = "E:/check/ckeckMemberInfoforJZ/member001.data";private static String catchMemberSql = "select * from memberUpdate";private static String catchCardNotSql = "";//获取数据库连接，执行目的语句private static ResultSet getJdbcConnet(String directSql){Connection connection;Statement statement;ResultSet resultSet = null;//拼接成稳定的URLtry {String basicUrl = driverType+ip+":"+port+";DatabaseName="+DatabaseName;Class.forName(Drivermanager).newInstance();connection = DriverManager.getConnection( basicUrl,username, password);System.out.println("jdbc connect success");statement = connection.createStatement();
            resultSet = statement.excute(directSql);}catch (ClassNotFoundException e){e.printStackTrace();}catch (SQLException e){e.printStackTrace();}catch (IllegalAccessException e){e.printStackTrace();}catch (InstantiationException e){e.printStackTrace();}return resultSet;}