参考：http://www.cnblogs.com/edisonfeng/p/3571870.html
maven依赖：
<dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.8.0</version> </dependency>
package com.tch.redis.test;
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();
}
/**
* 初始化非切片池
*/
private void initialPool() {
// 池基本配置
JedisPoolConfig config = new JedisPoolConfig();
config.setMaxIdle(5);
config.setTestOnBorrow(false);
jedisPool = new JedisPool(config, "10.7.253.99", 6379);
}
/**
* 初始化切片池
*/
private void initialShardedPool() {
// 池基本配置
JedisPoolConfig config = new JedisPoolConfig();
config.setMaxIdle(5);
config.setTestOnBorrow(false);
// slave链接
List<JedisShardInfo> shards = new ArrayList<JedisShardInfo>();
shards.add(new JedisShardInfo("10.7.253.99", 6379, "master"));
// 构造池
shardedJedisPool = new ShardedJedisPool(config, shards);
}
public void show() {
KeyOperate();
StringOperate();
ListOperate();
SetOperate();
SortedSetOperate();
HashOperate();
jedis.close();
shardedJedis.close();
}
private void StringOperate() {
System.out.println("======================String_1==========================");
// 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
System.out.println("======================String_2==========================");
// 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 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();
}
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");
}
public void KeyOperate() {
System.out.println("======================key==========================");
// 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key999键是否存在：" + shardedJedis.exists("key999"));
System.out.println("新增key001,value001键值对：" + shardedJedis.set("key001", "value001"));
System.out.println("判断key001是否存在：" + shardedJedis.exists("key001"));
// 输出系统中所有的key
System.out.println("新增key002,value002键值对：" + shardedJedis.set("key002", "value002"));
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key002: " + jedis.del("key002"));
System.out.println("判断key002是否存在：" + shardedJedis.exists("key002"));
// 设置 key001的过期时间
System.out.println("设置 key001的过期时间为5秒:" + jedis.expire("key001", 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-1
System.out.println("查看key001的剩余生存时间：" + jedis.ttl("key001"));
// 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)
*/
}
}
测试代码：
package com.tch.redis.test;
public class RedisTest {
public static void main(String[] args) {
RedisClient redisClient = new RedisClient();
redisClient.show();
}
}