在进行JDBC链接时出现无法找到驱动，然后修改驱动既可以

    1.   /*hiverserver 版本使用此驱动*/Technorati 标记: hadoop,hive,jdbc
    2.   //private static String driverName = "org.apache.hadoop.hive.jdbc.HiveDriver";
    3.   /*hiverserver2 版本使用此驱动*/
    4.   private static String driverName = "org.apache.hive.jdbc.HiveDriver";
    6.   public static void main(String[] args) throws SQLException {
    8.     try {
    9.       Class.forName(driverName);
    10.     } catch (ClassNotFoundException e) {
    11.       e.printStackTrace();
    12.       System.exit(1);
    13.     }
    15.     /*hiverserver 版本jdbc url格式*/
    16.     //Connection con = DriverManager.getConnection("jdbc:hive://hostip:10000/default", "", "");
    18.     /*hiverserver2 版本jdbc url格式*/
    19.     Connection con = DriverManager.getConnection("jdbc:hive2://hostip:10000/default", "hive", "hive");
    20.     Statement stmt = con.createStatement();
    21.     //参数设置测试
    22.     //boolean resHivePropertyTest = stmt
    23.     //        .execute("SET tez.runtime.io.sort.mb = 128");

    连接hive时出现

    1. Caused by: java.net.ConnectException: Connection refused (Connection refused)

    解决方案：