public static void transactionDemo() {
        Jedis jedis = new Jedis(host,port);
        Transaction transaction = jedis.multi();
        transaction.set("tx1", "45d方dfddfdf");
        transaction.set("tx2", "t地方的df");
        boolean successful=true;
        if(successful){
            transaction.exec(); //提交事务
        }else{
            transaction.discard();//回滚事务
        }
        jedis.close();
    }