jedis和jediscluster_jedis连接redis集群
jedis和jediscluster_jedis连接redis集群
package com.redis;
import org.junit.Test;
import redis.clients.jedis.HostAndPort;
import redis.clients.jedis.JedisCluster;
import redis.clients.jedis.JedisPoolConfig;
import redis.clients.jedis.SortingParams;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;/**
* 集群环境下Jedis操作*/
public classCluster {private staticJedisCluster jedis;static{//添加集群的服务节点Set集合
Set hostAndPortsSet = new HashSet();//添加节点
hostAndPortsSet.add(new HostAndPort(“192.168.56.180”, 7777));
hostAndPortsSet.add(new HostAndPort(“192.168.56.180”, 8888));
hostAndPortsSet.add(new HostAndPort(“192.168.56.181”, 7777));
hostAndPortsSet.add(new HostAndPort(“192.168.56.181”, 8888));
hostAndPortsSet.add(new HostAndPort(“192.168.56.182”, 7777));
hostAndPortsSet.add(new HostAndPort(“192.168.56.182”, 8888));//Jedis连接池配置
JedisPoolConfig jedisPoolConfig = newJedisPoolConfig();//最大空闲连接数, 默认8个
jedisPoolConfig.setMaxIdle(100);//最大连接数, 默认8个
jedisPoolConfig.setMaxTotal(500);//最小空闲连接数, 默认0
jedisPoolConfig.setMinIdle(0);//获取连接时的最大等待毫秒数(如果设置为阻塞时BlockWhenExhausted),如果超时就抛异常, 小于零:阻塞不确定的时间, 默认-1
jedisPoolConfig.setMaxWaitMillis(2000); //设置2秒//对拿到的connection进行validateObject校验
jedisPoolConfig.setTestOnBorrow(true);
jedis= newJedisCluster(hostAndPortsSet, jedisPoolConfig);
}/**
* 测试key:value数据
* 集群中flushDB、keys废弃*/@Testpublic voidtestKey() throws InterruptedException {//System.out.println(“清空数据：”+jedis.flushDB());
System.out.println(“判断某个键是否存在：”+jedis.exists(“username”));
System.out.println(“新增的键值对：”+jedis.set(“username”, “xiaohai”));
System.out.println(“是否存在:”+jedis.exists(“username”));
System.out.println(“新增的键值对：”+jedis.set(“password”, “123456”));//Set keys = jedis.keys(“*”);//System.out.println(“系统中所有的键如下：”+keys);
System.out.println(“删除键password:”+jedis.del(“password”));
System.out.println(“判断键password是否存在：”+jedis.exists(“password”));
System.out.println(“设置键username的过期时间为10s:”+jedis.expire(“username”, 10));
TimeUnit.SECONDS.sleep(2); //线程睡眠2秒System.out.println(“查看键username的剩余生存时间：”+jedis.ttl(“username”));
System.out.println(“查看键username的剩余生存时间：”+jedis.ttl(“username”));
System.out.println(“移除键username的生存时间：”+jedis.persist(“username”));
System.out.println(“查看键username的剩余生存时间：”+jedis.ttl(“username”));
System.out.println(“查看键username所存储的值的类型：”+jedis.type(“username”));
}/***
* 字符串操作
* memcached和redis同样有append的操作，但是memcached有prepend的操作，redis中并没有。
* 集群中flushDB、keys、del(多个值)、mset(多个值)废弃
* @throws InterruptedException*/@Testpublic voidtestString() throws InterruptedException {//jedis.flushDB();
System.out.println(“===========增加数据===========”);
System.out.println(jedis.set(“key1″,”value1”));
System.out.println(jedis.set(“key2″,”value2”));
System.out.println(jedis.set(“key3”, “value3”));
System.out.println(“删除键key2:”+jedis.del(“key2”));
System.out.println(“获取键key2:”+jedis.get(“key2”));
System.out.println(“修改key1:”+jedis.set(“key1”, “value1Changed”));
System.out.println(“获取key1的值：”+jedis.get(“key1”));
System.out.println(“在key3后面加入值：”+jedis.append(“key3”, “End”));
System.out.println(“key3的值：”+jedis.get(“key3”));//命令的时候才会去连接连接，集群中连接是对一个节点连接，不能判断多个key经过crc16算法所对应的槽在一个节点上，不支持多key获取、删除//System.out.println(“增加多个键值对：”+jedis.mset(“key01″,”value01″,”key02″,”value02”));//System.out.println(“获取多个键值对：”+jedis.mget(“key01″,”key02″,”key03”));//System.out.println(“获取多个键值对：”+jedis.mget(“key01″,”key02″,”key03″,”key04”));//System.out.println(“删除多个键值对：”+jedis.del(new String[]{“key01″,”key02”}));//System.out.println(“获取多个键值对：”+jedis.mget(“key01″,”key02″,”key03”));//jedis.flushDB();
System.out.println(“===========新增键值对防止覆盖原先值==============”);
System.out.println(jedis.setnx(“key1”, “value1”));
System.out.println(jedis.setnx(“key2”, “value2”));
System.out.println(jedis.setnx(“key2”, “value2-new”));
System.out.println(jedis.get(“key1”));
System.out.println(jedis.get(“key2”));
System.out.println(“===========新增键值对并设置有效时间=============”);
System.out.println(jedis.setex(“key3”, 2, “value3”));
System.out.println(jedis.get(“key3”));
TimeUnit.SECONDS.sleep(3);
System.out.println(jedis.get(“key3”));
System.out.println(“===========获取原值，更新为新值==========”);//GETSET is an atomic set this value and return the old value command.
System.out.println(jedis.getSet(“key2”, “key2GetSet”));
System.out.println(jedis.get(“key2”));
System.out.println(“获得key2的值的字串：”+jedis.getrange(“key2”, 2, 4)); //相当截取字符串的第二个位置-第四个位置的字符串
}/***
* 整数和浮点数*/@Testpublic voidtestNumber() {
jedis.set(“key1”, “1”);
jedis.set(“key2”, “2”);
jedis.set(“key3”, “2.3”);
System.out.println(“key1的值：”+jedis.get(“key1”));
System.out.println(“key2的值：”+jedis.get(“key2”));
System.out.println(“key1的值加1：”+jedis.incr(“key1”));
System.out.println(“获取key1的值：”+jedis.get(“key1”));
System.out.println(“key2的值减1：”+jedis.decr(“key2”));
System.out.println(“获取key2的值：”+jedis.get(“key2”));
System.out.println(“将key1的值加上整数5：”+jedis.incrBy(“key1”, 5));
System.out.println(“获取key1的值：”+jedis.get(“key1”));
System.out.println(“将key2的值减去整数5：”+jedis.decrBy(“key2”, 5));
System.out.println(“获取key2的值：”+jedis.get(“key2”));
System.out.println(“key3的值：”+jedis.get(“key3”));//这里会报错，因为key3不是整数不能做计算:redis.clients.jedis.exceptions.JedisDataException: ERR value is not an integer or out of range//System.out.println(“key2的值减1：”+jedis.decr(“key3”));
}/***
* 列表*/@Testpublic voidtestList() {
System.out.println(“===========添加一个list===========”);
jedis.lpush(“collections”, “ArrayList”, “Vector”, “Stack”, “HashMap”, “WeakHashMap”, “LinkedHashMap”);
jedis.lpush(“collections”, “HashSet”); //叠加
jedis.lpush(“collections”, “TreeSet”); //叠加
jedis.lpush(“collections”, “TreeMap”); //叠加
System.out.println(“collections的内容：”+jedis.lrange(“collections”, 0, -1));//-1代表倒数第一个元素，-2代表倒数第二个元素
System.out.println(“collections区间0-3的元素：”+jedis.lrange(“collections”,0,3)); //前面4个值
System.out.println(“===============================”);//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(“删除指定元素个数：”+jedis.lrem(“collections”, 2, “HashMap”));
System.out.println(“collections的内容：”+jedis.lrange(“collections”, 0, -1));
System.out.println(“删除下表0-3区间之外的元素：”+jedis.ltrim(“collections”, 0, 3));
System.out.println(“collections的内容：”+jedis.lrange(“collections”, 0, -1));
System.out.println(“collections列表出栈(左端)：”+jedis.lpop(“collections”));
System.out.println(“collections的内容：”+jedis.lrange(“collections”, 0, -1));
System.out.println(“collections添加元素，从列表右端，与lpush相对应：”+jedis.rpush(“collections”, “EnumMap”));
System.out.println(“collections的内容：”+jedis.lrange(“collections”, 0, -1));
System.out.println(“collections列表出栈(右端)：”+jedis.rpop(“collections”));
System.out.println(“collections的内容：”+jedis.lrange(“collections”, 0, -1));
System.out.println(“修改collections指定下标1的内容：”+jedis.lset(“collections”, 1, “LinkedArrayList”));
System.out.println(“collections的内容：”+jedis.lrange(“collections”, 0, -1));
System.out.println(“===============================”);
System.out.println(“collections的长度：”+jedis.llen(“collections”));
System.out.println(“获取collections下标为2的元素：”+jedis.lindex(“collections”, 2));
System.out.println(“===============================”);
jedis.lpush(“sortedList”, “3”,”6″,”2″,”0″,”7″,”4″);
System.out.println(“sortedList排序前：”+jedis.lrange(“sortedList”, 0, -1));
System.out.println(jedis.sort(“sortedList”));
System.out.println(“sortedList排序后：”+jedis.lrange(“sortedList”, 0, -1));
}/***
* set集合*/@Testpublic voidtestSet() {
System.out.println(“============向集合中添加元素============”);
System.out.println(jedis.sadd(“eleSet”, “e1″,”e2″,”e4″,”e3″,”e0″,”e8″,”e7″,”e5”));
System.out.println(jedis.sadd(“eleSet”, “e6”));
System.out.println(jedis.sadd(“eleSet”, “e6”)); //返回0，集合中已经存在
System.out.println(“eleSet的所有元素为：”+jedis.smembers(“eleSet”));
System.out.println(“删除一个元素e0：”+jedis.srem(“eleSet”, “e0”));
System.out.println(“eleSet的所有元素为：”+jedis.smembers(“eleSet”));
System.out.println(“删除两个元素e7和e6：”+jedis.srem(“eleSet”, “e7″,”e6”));
System.out.println(“eleSet的所有元素为：”+jedis.smembers(“eleSet”));
System.out.println(“随机的移除集合中的一个元素：”+jedis.spop(“eleSet”));
System.out.println(“随机的移除集合中的一个元素：”+jedis.spop(“eleSet”));
System.out.println(“eleSet的所有元素为：”+jedis.smembers(“eleSet”));
System.out.println(“eleSet中包含元素的个数：”+jedis.scard(“eleSet”));
System.out.println(“e3是否在eleSet中：”+jedis.sismember(“eleSet”, “e3”));
System.out.println(“e1是否在eleSet中：”+jedis.sismember(“eleSet”, “e1”));
System.out.println(“e5是否在eleSet中：”+jedis.sismember(“eleSet”, “e5”));//集群下并存会报错：redis.clients.jedis.exceptions.JedisClusterException: No way to dispatch this command to Redis Cluster because keys have different slots.//Redis集群，从key1集合与key2集合并存、交集、差集，两个键经过crc16算法可能有不同的槽。
/*System.out.println(“=================================”);
System.out.println(jedis.sadd(“eleSet1”, “e1″,”e2″,”e4″,”e3″,”e0″,”e8″,”e7″,”e5”));
System.out.println(jedis.sadd(“eleSet2”, “e1″,”e2″,”e4″,”e3″,”e0″,”e8”));
System.out.println(“将eleSet1中删除e1并存入eleSet3中：”+jedis.smove(“eleSet1”, “eleSet3”, “e1”));
System.out.println(“将eleSet1中删除e2并存入eleSet3中：”+jedis.smove(“eleSet1”, “eleSet3”, “e2”));
System.out.println(“eleSet1中的元素：”+jedis.smembers(“eleSet1”));
System.out.println(“eleSet3中的元素：”+jedis.smembers(“eleSet3”));*/
/*System.out.println(“============集合运算=================”);
System.out.println(“eleSet1中的元素：”+jedis.smembers(“eleSet1”));
System.out.println(“eleSet2中的元素：”+jedis.smembers(“eleSet2”));
System.out.println(“eleSet1和eleSet2的交集:”+jedis.sinter(“eleSet1″,”eleSet2”));
System.out.println(“eleSet1和eleSet2的并集:”+jedis.sunion(“eleSet1″,”eleSet2”));
System.out.println(“eleSet1和eleSet2的差集:”+jedis.sdiff(“eleSet1″,”eleSet2”));*/jedis.del(“eleSet”);
jedis.del(“eleSet1”);
jedis.del(“eleSet2”);
jedis.del(“eleSet3”);
}/***
* 散列*/@Testpublic voidtestHash() {
Map map = new HashMap();
map.put(“key1″,”value1”);
map.put(“key2″,”value2”);
map.put(“key3″,”value3”);
map.put(“key4″,”value4”);
jedis.hmset(“hash”,map);
jedis.hset(“hash”, “key5”, “value5”);
System.out.println(“散列hash的所有键值对为：”+jedis.hgetAll(“hash”));//return Map
System.out.println(“散列hash的所有键为：”+jedis.hkeys(“hash”));//return Set
System.out.println(“散列hash的所有值为：”+jedis.hvals(“hash”));//return List
System.out.println(“将key6保存的值加上一个整数，如果key6不存在则添加key6：”+jedis.hincrBy(“hash”, “key6”, 6));
System.out.println(“散列hash的所有键值对为：”+jedis.hgetAll(“hash”));
System.out.println(“将key6保存的值加上一个整数，如果key6不存在则添加key6：”+jedis.hincrBy(“hash”, “key6”, 3));
System.out.println(“散列hash的所有键值对为：”+jedis.hgetAll(“hash”));
System.out.println(“删除一个或者多个键值对：”+jedis.hdel(“hash”, “key2”));
System.out.println(“散列hash的所有键值对为：”+jedis.hgetAll(“hash”));
System.out.println(“散列hash中键值对的个数：”+jedis.hlen(“hash”));
System.out.println(“判断hash中是否存在key2：”+jedis.hexists(“hash”,”key2″));
System.out.println(“判断hash中是否存在key3：”+jedis.hexists(“hash”,”key3″));
System.out.println(“获取hash中的值：”+jedis.hmget(“hash”,”key3″));
System.out.println(“获取hash中的值：”+jedis.hmget(“hash”,”key3″,”key4″));
}/**
* 有序集合*/@Testpublic voidtestSortedSet() {
Map map = new HashMap();
map.put(“key2”,1.2);
map.put(“key3”,4.0);
map.put(“key4”,5.0);
map.put(“key5”,0.2);//将一个或多个 member 元素及其 score 值加入到有序集 key 当中，如果某个 member 已经是有序集的成员，那么更新这个 member 的 score 值//score 值可以是整数值或双精度浮点数
System.out.println(jedis.zadd(“zset”, 3,”key1″));
System.out.println(jedis.zadd(“zset”,map));
System.out.println(“zset中的所有元素：”+jedis.zrange(“zset”, 0, -1));
System.out.println(“zset中的所有元素：”+jedis.zrangeWithScores(“zset”, 0, -1));
System.out.println(“zset中的所有元素：”+jedis.zrangeByScore(“zset”, 0,100));
System.out.println(“zset中的所有元素：”+jedis.zrangeByScoreWithScores(“zset”, 0,100));
System.out.println(“zset中key2的分值：”+jedis.zscore(“zset”, “key2”));
System.out.println(“zset中key2的排名：”+jedis.zrank(“zset”, “key2”));
System.out.println(“删除zset中的元素key3：”+jedis.zrem(“zset”, “key3”));
System.out.println(“zset中的所有元素：”+jedis.zrange(“zset”, 0, -1));
System.out.println(“zset中元素的个数：”+jedis.zcard(“zset”));
System.out.println(“zset中分值在1-4之间的元素的个数：”+jedis.zcount(“zset”, 1, 4));
System.out.println(“key2的分值加上5：”+jedis.zincrby(“zset”, 5, “key2”));
System.out.println(“key3的分值加上4：”+jedis.zincrby(“zset”, 4, “key3”));
System.out.println(“zset中的所有元素：”+jedis.zrange(“zset”, 0, -1));
}/**
* 排序*/@Testpublic voidtestSort() {
jedis.lpush(“collections”, “ArrayList”, “Vector”, “Stack”, “HashMap”, “WeakHashMap”, “LinkedHashMap”);
System.out.println(“collections的内容：”+jedis.lrange(“collections”, 0, -1));
SortingParams sortingParameters= newSortingParams();//当数据集中保存的是字符串值时，你可以用 ALPHA,默认是升序
System.out.println(“alpha排序方式：” + jedis.sort(“collections”,sortingParameters.alpha()));
System.out.println(“===============================”);
jedis.lpush(“sortedList”, “3”,”6″,”2″,”0″,”7″,”4″);
System.out.println(“sortedList排序前：”+jedis.lrange(“sortedList”, 0, -1));
System.out.println(“升序：”+jedis.sort(“sortedList”, sortingParameters.asc()));
System.out.println(“降序：”+jedis.sort(“sortedList”, sortingParameters.desc()));
System.out.println(“===============================”);//集群下不支持分割表排序
/*jedis.lpush(“userlist”, “33”);
jedis.lpush(“userlist”, “22”);
jedis.lpush(“userlist”, “55”);
jedis.lpush(“userlist”, “11”);
jedis.hset(“user:66”, “name”, “66”);
jedis.hset(“user:55”, “name”, “55”);
jedis.hset(“user:33”, “name”, “33”);
jedis.hset(“user:22”, “name”, “79”);
jedis.hset(“user:11”, “name”, “24”);
jedis.hset(“user:11”, “add”, “beijing”);
jedis.hset(“user:22”, “add”, “shanghai”);
jedis.hset(“user:33”, “add”, “guangzhou”);
jedis.hset(“user:55”, “add”, “chongqing”);
jedis.hset(“user:66”, “add”, “xi’an”);
sortingParameters = new SortingParams();
// 符号 “->” 用于分割哈希表的键名(key name)和索引域(hash field)，格式为 “key->field”
sortingParameters.get(“user:*->name”);
sortingParameters.get(“user:*->add”);
System.out.println(jedis.sort(“userlist”,sortingParameters));*/}
}
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