Redis java测试

 

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();
    }
    
}