redis实战-redisLearn.zip

import redis.clients.jedis.Jedis; import redis.clients.jedis.Transaction; import java.util.List; /** * @author 重新做人idea基础学习 * @date 2021-5-26 */ // redis之事务！！！ public class TranscationTest { public static void main(String[] args) { Jedis jeids =new Jedis("47.101.176.203",6379); // setnx ?? set if not exits jeids.setnx("chenxr","5"); System.out.println(DoubleAccount(jeids,"chenxr")); jeids.close(); } public static int DoubleAccount(Jedis jedis ,String id) { while (true) { jedis.watch(id); int val = Integer.parseInt(jedis.get(id)); val *= 2; // mutil --- > begin // exc ---> execute // discard --> quit Transaction tx = jedis.multi(); tx.set(id, String.valueOf(val)); List<Object> res = tx.exec(); System.out.println(res); if (res != null) { break; } } return Integer.parseInt(jedis.get(id)); } }