jdbc连接mysql数据库 java

在java中使用jdbc连接mysql数据库

public static Connection getConnection(String ip, String port, String user, String pwd) {        Connection conn = null;        try { //port一般是 3306            String url = "jdbc:mysql://"+ ip + ":"+ port +"/test?characterEncoding=utf8&useSSL=true&createDatabaseIfNotExist=true";            Class.forName("com.mysql.jdbc.Driver");            conn = DriverManager.getConnection(url, user, pwd);        } catch (ClassNotFoundException e) {            e.printStackTrace();        } catch (SQLException e) {            e.printStackTrace();        }        return conn;    }