redis對String型別資料的處理
阿新 • • 發佈:2018-12-20
package com.xwolf.java.redis; import org.junit.Before; import org.junit.Test; import redis.clients.jedis.Jedis; import redis.clients.jedis.JedisPool; import redis.clients.jedis.JedisPoolConfig; import java.util.List; /** * Created by Administrator on 2015/12/15 0015. */ public class RedisOp { private JedisPool jedisPool ; private Jedis jedis; private String host="127.0.0.1"; private int port=6379; @Before public void connect(){ JedisPoolConfig config = new JedisPoolConfig(); config.setMaxIdle(5); config.setMaxTotal(20); config.setTestOnBorrow(false); jedisPool=new JedisPool(config,host,port); jedis= jedisPool.getResource(); } /** * redis String 型別測試 */ @Test public void testString(){ jedis.set("name","3243"); //新增資料 System.out.println(jedis.get("name"));//獲取資料 System.out.println(jedis.flushDB());//清空所有資料 System.out.println(jedis.get("name")); jedis.set("qq","sdfsd32332"); System.out.println(jedis.exists("qq"));//是否存在key // 設定多個key,value值 jedis.mset("k01","v01","k02","v02","k03","v03","k04","v04"); //刪除key,返回刪除的數量 System.out.println(jedis.del("k03", "v03")); jedis.rename("k01","k001");//重新命名key //獲取多個key List<String> vls =jedis.mget("k001", "k02", "v01"); for(String vl:vls){ System.out.println(vl); } System.out.println(jedis.substr("k001",1,4));//擷取指定key 的字串 jedis.lpush("list01","javascript","Bootstrap","jQuery","Hadoop","Redis");//儲存List型別資料 System.out.println(jedis.ltrim("list01",2,5)); } }