jedis

• jedis官方指定的redis java客戶端，將其導入到pom.xml問價內

<!-- https://mvnrepository.com/artifact/redis.clients/jedis --> <dependency><groupId>redis.clients</groupId><artifactId>jedis</artifactId><version>3.1.0</version> </dependency>

• 部分的相關操作如下
• 源碼和注解如下

package com.example.demo;import redis.clients.jedis.Jedis; import redis.clients.jedis.JedisPool; import redis.clients.jedis.JedisPoolConfig;import java.util.List; import java.util.Set;public class RedisDemo {//Ip:192.168.133.130;port:10190//定義連接池private static JedisPool jedisPool = null;//初始化private static void init(){//Jedis池配置JedisPoolConfig config = new JedisPoolConfig();//最大空閑連接數config.setMaxIdle(8);//最大的連接數config.setMaxTotal(100);//設置獲取連接的最大等待時間，如果超過這個時間沒有鏈接，就會拋出異常config.setMaxWaitMillis(1000);//在創建一個連接時，是否去校驗true是校驗config.setTestOnBorrow(false);jedisPool = new JedisPool(config,"192.168.133.130",10190,5000);}//操作字符串public static void testString(){//獲取jedis實例，從jedisPool里面//操作redis客戶端的類創建完畢Jedis jedis = jedisPool.getResource();//設置keyjedis.set("test_key","123");//直接輸出到界面上System.out.println("test_key:"+jedis.get("test_key"));//自增jedis.incr("test_key");System.out.println("test_key:"+jedis.get("test_key"));//自減jedis.decr("test_key");System.out.println("test_key:"+jedis.get("test_key"));//查詢類型System.out.println("type:"+jedis.type("test_key"));//刪除key // jedis.del("test_key");//設置key的超時時間jedis.expire("test_key",10);//10秒//關閉連接jedis.close();}//Listpublic static void testList(){//獲取連接Jedis jedis = jedisPool.getResource();//預先刪除keyjedis.del("test_list");//在list左邊插入元素//增加listjedis.lpush("test_list","a");jedis.lpush("test_list","b");jedis.lpush("test_list","c");jedis.lpush("test_list","1");jedis.lpush("test_list","2");jedis.lpush("test_list","3");jedis.lpush("test_list","4");//查詢listList<String> list = jedis.lrange("test_list",0,-1);list.forEach(i->{System.out.println(i);});//關閉連接jedis.close();}//操作集合public static void testSet(){//獲取連接Jedis jedis = jedisPool.getResource();String key = "test_set";jedis.del(key);//添加元素jedis.sadd(key,"hello","cc");//獲取元素Set<String>set = jedis.smembers(key);System.out.println("all members"+set);//集合的長度System.out.println("set的長度"+jedis.scard(key));//查看元素是否在集合里面System.out.println("cc元素是否在集合里面"+jedis.sismember(key,"cc"));//隨機刪除System.out.println("隨機刪除元素:"+jedis.spop(key));//集合的相關操作String test_set1 = "test_set1";String test_set2 = "test_set2";jedis.sadd(test_set1,"a","b","c","d");jedis.sadd(test_set2,"b","c","e");//交集Set<String>sets = jedis.sinter(test_set1,test_set2);System.out.println("test1和test2的交集："+sets);//差集sets = jedis.sdiff(test_set1,test_set2);System.out.println("test1和test2的差集："+sets);//并集sets = jedis.sunion(test_set1,test_set2);System.out.println("test1和test2的并集："+sets);//關閉連接jedis.close();}public static void main(String[] args) {//初始化連接init();//字符串相關的操作testString();//List相關操作testList();//set相關操作testSet();} }

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