Jedis相关操作

采用的jar包是jedis-2.1.0.jar、commons-pool.jar。

import java.util.ArrayList;import java.util.Iterator;import java.util.List;import java.util.Set;import redis.clients.jedis.Jedis;import redis.clients.jedis.JedisPool;import redis.clients.jedis.JedisPoolConfig;import redis.clients.jedis.JedisShardInfo;import redis.clients.jedis.ShardedJedis;import redis.clients.jedis.ShardedJedisPool;import redis.clients.jedis.SortingParams;public class RedisClient {private Jedis jedis;// 非切片额客户端连接private JedisPool jedisPool;// 非切片连接池private ShardedJedis shardedJedis;// 切片额客户端连接private ShardedJedisPool shardedJedisPool;// 切片连接池public RedisClient() {initialPool();initialShardedPool();shardedJedis = shardedJedisPool.getResource();jedis = jedisPool.getResource();// 可能刚开的时候对Jedis、ShardedJedis、JedisPool、SharededJedisPool的初始化顺序理不清，容易混乱// Jedis---ShardedJedis JedisPool----ShardJedisPool。// 初始化Jedis、ShardedJedis就要先创建JedisPool和ShardedJedisPool// 于是有了initJedisPool()和initSharededJedisPool()方法}public ShardedJedis getShardedJedis() {return shardedJedis;}public void setShardedJedis(ShardedJedis shardedJedis) {this.shardedJedis = shardedJedis;}/** * 初始化非切片池 */private void initialPool() {// 池基本配置JedisPoolConfig config = new JedisPoolConfig();config.setMaxActive(20);config.setMaxIdle(5);config.setMaxWait(1000l);config.setTestOnBorrow(false);jedisPool = new JedisPool(config, "127.0.0.1", 6379);}/** * 初始化切片池 */private void initialShardedPool() {// 池基本配置JedisPoolConfig config = new JedisPoolConfig();config.setMaxActive(20);config.setMaxIdle(5);config.setMaxWait(1000l);config.setTestOnBorrow(false);// slave链接List<JedisShardInfo> shards = new ArrayList<JedisShardInfo>();shards.add(new JedisShardInfo("127.0.0.1", 6379, "master"));// 构造池shardedJedisPool = new ShardedJedisPool(config, shards);}public void show() {// KeyOperate();StringOperate();ListOperate();SetOperate();SortedSetOperate();HashOperate();jedisPool.returnResource(jedis);shardedJedisPool.returnResource(shardedJedis);}private void KeyOperate() {// 清空数据System.out.println("清空库中所有数据：" + jedis.flushDB());// 判断key否存在System.out.println("判断key1键是否存在：" + shardedJedis.exists("key1"));System.out.println("新增key1,value1键值对："+ shardedJedis.set("key1", "value1"));System.out.println("判断key1是否存在：" + shardedJedis.exists("key1"));// 输出系统中所有的keySystem.out.println("新增key2,value2键值对："+ shardedJedis.set("key2", "value2"));System.out.println("系统中所有键如下：");Set<String> keys = jedis.keys("*");Iterator<String> it = keys.iterator();while (it.hasNext()) {String key = it.next();System.out.println(key);}// 删除某个key,若key不存在，则忽略该命令。System.out.println("系统中删除key2: " + jedis.del("key2"));System.out.println("判断key2是否存在：" + shardedJedis.exists("key2"));// 设置 key001的过期时间System.out.println("设置 key1的过期时间为5秒:" + jedis.expire("key1", 5));try {Thread.sleep(2000);} catch (InterruptedException e) {}// 查看某个key的剩余生存时间,单位【秒】.永久生存或者不存在的都返回-1System.out.println("查看key1的剩余生存时间：" + jedis.ttl("key1"));// 移除某个key的生存时间System.out.println("移除key001的生存时间：" + jedis.persist("key001"));System.out.println("查看key001的剩余生存时间：" + jedis.ttl("key001"));// 查看key所储存的值的类型System.out.println("查看key所储存的值的类型：" + jedis.type("key001"));/* * 一些其他方法：1、修改键名：jedis.rename("key6", "key0"); * 2、将当前db的key移动到给定的db当中：jedis.move("foo", 1) */}private void StringOperate() {// 清空数据System.out.println("清空库中所有数据：" + jedis.flushDB());System.out.println("=============增=============");jedis.set("key001", "value001");jedis.set("key002", "value002");jedis.set("key003", "value003");System.out.println("已新增的3个键值对如下：");System.out.println(jedis.get("key001"));System.out.println(jedis.get("key002"));System.out.println(jedis.get("key003"));System.out.println("=============删=============");System.out.println("删除key003键值对：" + jedis.del("key003"));System.out.println("获取key003键对应的值：" + jedis.get("key003"));System.out.println("=============改=============");// 1、直接覆盖原来的数据System.out.println("直接覆盖key001原来的数据："+ jedis.set("key001", "value001-update"));System.out.println("获取key001对应的新值：" + jedis.get("key001"));// 2、直接覆盖原来的数据System.out.println("在key002原来值后面追加："+ jedis.append("key002", "+appendString"));System.out.println("获取key002对应的新值" + jedis.get("key002"));System.out.println("=============增，删，查（多个）=============");/** * mset,mget同时新增，修改，查询多个键值对 等价于： jedis.set("name","ssss"); * jedis.set("jarorwar","xxxx"); */System.out.println("一次性新增key201,key202,key203,key204及其对应值："+ jedis.mset("key201", "value201", "key202", "value202","key203", "value203", "key204", "value204"));System.out.println("一次性获取key201,key202,key203,key204各自对应的值："+ jedis.mget("key201", "key202", "key203", "key204"));System.out.println("一次性删除key201,key202："+ jedis.del(new String[] { "key201", "key202" }));System.out.println("一次性获取key201,key202,key203,key204各自对应的值："+ jedis.mget("key201", "key202", "key203", "key204"));System.out.println();// jedis具备的功能shardedJedis中也可直接使用，下面测试一些前面没用过的方法// 清空数据System.out.println("清空库中所有数据：" + jedis.flushDB());System.out.println("=============新增键值对时防止覆盖原先值=============");System.out.println("原先key301不存在时，新增key301："+ shardedJedis.setnx("key301", "value301"));System.out.println("原先key302不存在时，新增key302："+ shardedJedis.setnx("key302", "value302"));System.out.println("当key302存在时，尝试新增key302："+ shardedJedis.setnx("key302", "value302_new"));System.out.println("获取key301对应的值：" + shardedJedis.get("key301"));System.out.println("获取key302对应的值：" + shardedJedis.get("key302"));System.out.println("=============超过有效期键值对被删除=============");// 设置key的有效期，并存储数据System.out.println("新增key303，并指定过期时间为2秒"+ shardedJedis.setex("key303", 2, "key303-2second"));System.out.println("获取key303对应的值：" + shardedJedis.get("key303"));try {Thread.sleep(3000);} catch (InterruptedException e) {}System.out.println("3秒之后，获取key303对应的值：" + shardedJedis.get("key303"));System.out.println("=============获取原值，更新为新值一步完成=============");System.out.println("key302原值："+ shardedJedis.getSet("key302", "value302-after-getset"));System.out.println("key302新值：" + shardedJedis.get("key302"));System.out.println("=============获取子串=============");System.out.println("获取key302对应值中的子串："+ shardedJedis.getrange("key302", 5, 7));}private void ListOperate() {System.out.println("======================list==========================");// 清空数据System.out.println("清空库中所有数据：" + jedis.flushDB());System.out.println("=============增=============");shardedJedis.lpush("stringlists", "vector");shardedJedis.lpush("stringlists", "ArrayList");shardedJedis.lpush("stringlists", "vector");shardedJedis.lpush("stringlists", "vector");shardedJedis.lpush("stringlists", "LinkedList");shardedJedis.lpush("stringlists", "MapList");shardedJedis.lpush("stringlists", "SerialList");shardedJedis.lpush("stringlists", "HashList");shardedJedis.lpush("numberlists", "3");shardedJedis.lpush("numberlists", "1");shardedJedis.lpush("numberlists", "5");shardedJedis.lpush("numberlists", "2");System.out.println("所有元素-stringlists："+ shardedJedis.lrange("stringlists", 0, -1));System.out.println("所有元素-numberlists："+ shardedJedis.lrange("numberlists", 0, -1));System.out.println("=============删=============");// 删除列表指定的值 ，第二个参数为删除的个数（有重复时），后add进去的值先被删，类似于出栈System.out.println("成功删除指定元素个数-stringlists："+ shardedJedis.lrem("stringlists", 2, "vector"));System.out.println("删除指定元素之后-stringlists："+ shardedJedis.lrange("stringlists", 0, -1));// 删除区间以外的数据System.out.println("删除下标0-3区间之外的元素："+ shardedJedis.ltrim("stringlists", 0, 3));System.out.println("删除指定区间之外元素后-stringlists："+ shardedJedis.lrange("stringlists", 0, -1));// 列表元素出栈System.out.println("出栈元素：" + shardedJedis.lpop("stringlists"));System.out.println("元素出栈后-stringlists："+ shardedJedis.lrange("stringlists", 0, -1));System.out.println("=============改=============");// 修改列表中指定下标的值shardedJedis.lset("stringlists", 0, "hello list!");System.out.println("下标为0的值修改后-stringlists："+ shardedJedis.lrange("stringlists", 0, -1));System.out.println("=============查=============");// 数组长度System.out.println("长度-stringlists：" + shardedJedis.llen("stringlists"));System.out.println("长度-numberlists：" + shardedJedis.llen("numberlists"));// 排序/* * list中存字符串时必须指定参数为alpha，如果不使用SortingParams，而是直接使用sort("list")， * 会出现"ERR One or more scores can't be converted into double" */SortingParams sortingParameters = new SortingParams();sortingParameters.alpha();sortingParameters.limit(0, 3);System.out.println("返回排序后的结果-stringlists："+ shardedJedis.sort("stringlists", sortingParameters));System.out.println("返回排序后的结果-numberlists："+ shardedJedis.sort("numberlists"));// 子串： start为元素下标，end也为元素下标；-1代表倒数一个元素，-2代表倒数第二个元素System.out.println("子串-第二个开始到结束："+ shardedJedis.lrange("stringlists", 1, -1));// 获取列表指定下标的值System.out.println("获取下标为2的元素：" + shardedJedis.lindex("stringlists", 2)+ "\n");}private void SetOperate() {System.out.println("======================set==========================");// 清空数据System.out.println("清空库中所有数据：" + jedis.flushDB());System.out.println("=============增=============");System.out.println("向sets集合中加入元素element001："+ jedis.sadd("sets", "element001"));System.out.println("向sets集合中加入元素element002："+ jedis.sadd("sets", "element002"));System.out.println("向sets集合中加入元素element003："+ jedis.sadd("sets", "element003"));System.out.println("向sets集合中加入元素element004："+ jedis.sadd("sets", "element004"));System.out.println("查看sets集合中的所有元素:" + jedis.smembers("sets"));System.out.println();System.out.println("=============删=============");System.out.println("集合sets中删除元素element003："+ jedis.srem("sets", "element003"));System.out.println("查看sets集合中的所有元素:" + jedis.smembers("sets"));/* * System.out.println("sets集合中任意位置的元素出栈："+jedis.spop("sets"));//注： * 出栈元素位置居然不定？--无实际意义 * System.out.println("查看sets集合中的所有元素:"+jedis.smembers("sets")); */System.out.println();System.out.println("=============改=============");System.out.println();System.out.println("=============查=============");System.out.println("判断element001是否在集合sets中："+ jedis.sismember("sets", "element001"));System.out.println("循环查询获取sets中的每个元素：");Set<String> set = jedis.smembers("sets");Iterator<String> it = set.iterator();while (it.hasNext()) {Object obj = it.next();System.out.println(obj);}System.out.println();System.out.println("=============集合运算=============");System.out.println("sets1中添加元素element001："+ jedis.sadd("sets1", "element001"));System.out.println("sets1中添加元素element002："+ jedis.sadd("sets1", "element002"));System.out.println("sets1中添加元素element003："+ jedis.sadd("sets1", "element003"));System.out.println("sets1中添加元素element002："+ jedis.sadd("sets2", "element002"));System.out.println("sets1中添加元素element003："+ jedis.sadd("sets2", "element003"));System.out.println("sets1中添加元素element004："+ jedis.sadd("sets2", "element004"));System.out.println("查看sets1集合中的所有元素:" + jedis.smembers("sets1"));System.out.println("查看sets2集合中的所有元素:" + jedis.smembers("sets2"));System.out.println("sets1和sets2交集：" + jedis.sinter("sets1", "sets2"));System.out.println("sets1和sets2并集：" + jedis.sunion("sets1", "sets2"));System.out.println("sets1和sets2差集：" + jedis.sdiff("sets1", "sets2"));// 差集：set1中有，set2中没有的元素}private void SortedSetOperate() {System.out.println("======================zset==========================");// 清空数据System.out.println(jedis.flushDB());System.out.println("=============增=============");System.out.println("zset中添加元素element001："+ shardedJedis.zadd("zset", 7.0, "element001"));System.out.println("zset中添加元素element002："+ shardedJedis.zadd("zset", 8.0, "element002"));System.out.println("zset中添加元素element003："+ shardedJedis.zadd("zset", 2.0, "element003"));System.out.println("zset中添加元素element004："+ shardedJedis.zadd("zset", 3.0, "element004"));System.out.println("zset集合中的所有元素：" + shardedJedis.zrange("zset", 0, -1));// 按照权重值排序System.out.println();System.out.println("=============删=============");System.out.println("zset中删除元素element002："+ shardedJedis.zrem("zset", "element002"));System.out.println("zset集合中的所有元素：" + shardedJedis.zrange("zset", 0, -1));System.out.println();System.out.println("=============改=============");System.out.println();System.out.println("=============查=============");System.out.println("统计zset集合中的元素中个数：" + shardedJedis.zcard("zset"));System.out.println("统计zset集合中权重某个范围内（1.0——5.0），元素的个数："+ shardedJedis.zcount("zset", 1.0, 5.0));System.out.println("查看zset集合中element004的权重："+ shardedJedis.zscore("zset", "element004"));System.out.println("查看下标1到2范围内的元素值："+ shardedJedis.zrange("zset", 1, 2));}private void HashOperate() {System.out.println("======================hash==========================");// 清空数据System.out.println(jedis.flushDB());System.out.println("=============增=============");System.out.println("hashs中添加key001和value001键值对："+ shardedJedis.hset("hashs", "key001", "value001"));System.out.println("hashs中添加key002和value002键值对："+ shardedJedis.hset("hashs", "key002", "value002"));System.out.println("hashs中添加key003和value003键值对："+ shardedJedis.hset("hashs", "key003", "value003"));System.out.println("新增key004和4的整型键值对："+ shardedJedis.hincrBy("hashs", "key004", 4l));System.out.println("hashs中的所有值：" + shardedJedis.hvals("hashs"));System.out.println();System.out.println("=============删=============");System.out.println("hashs中删除key002键值对："+ shardedJedis.hdel("hashs", "key002"));System.out.println("hashs中的所有值：" + shardedJedis.hvals("hashs"));System.out.println();System.out.println("=============改=============");System.out.println("key004整型键值的值增加100："+ shardedJedis.hincrBy("hashs", "key004", 100l));System.out.println("hashs中的所有值：" + shardedJedis.hvals("hashs"));System.out.println();System.out.println("=============查=============");System.out.println("判断key003是否存在："+ shardedJedis.hexists("hashs", "key003"));System.out.println("获取key004对应的值："+ shardedJedis.hget("hashs", "key004"));System.out.println("批量获取key001和key003对应的值："+ shardedJedis.hmget("hashs", "key001", "key003"));System.out.println("获取hashs中所有的key：" + shardedJedis.hkeys("hashs"));System.out.println("获取hashs中所有的value：" + shardedJedis.hvals("hashs"));System.out.println();}}

测试类：

import java.util.List;import redis.clients.jedis.ShardedJedis;import redis.clients.jedis.ShardedJedisPipeline;public class Test {public static void main(String[] args) {// TODO Auto-generated method stubRedisClient client = new RedisClient();ShardedJedis shardedJedis = client.getShardedJedis();ShardedJedisPipeline pipeline = new ShardedJedisPipeline() {public void execute() {for (int i = 0; i < 3; i++) {this.set("b" + i, 43 + "");}}};List<Object> list = shardedJedis.pipelined(pipeline);if (list != null) {for (Object object : list) {System.out.println(object);}}// .show();}}