redis java 相关api

转自：http://www.blogchong.com/?act=view&id=63&mod=pad
Redis Java API操作实例

Redis的API操作实例，其使用类似类似于普通数据库操作，先进行redis客户端的链接，然后进行相应的类似增删改查操作，相关API接口与命令行命令基本是一一对应的。
进行实例操作前，先在maven中添加依赖(我把source包也添加进去了，只是为了查看源码)，需要注意的是pool也需要添加，如下：

<dependency>            <groupId>redis.clients</groupId>            <artifactId>jedis</artifactId>            <version>2.5.2</version>        </dependency>        <dependency>            <groupId>redis.clients</groupId>            <artifactId>jedis</artifactId>            <version>2.5.2</version>            <classifier>sources</classifier>        </dependency>        <dependency>            <groupId>commons-pool</groupId>            <artifactId>commons-pool</artifactId>            <version>1.6</version>        </dependency>

代码如下，包括了连接客户端，初始化连接池，set操作，get操作等等。

package com.blogchong.mite.util;import java.util.ArrayList;import java.util.List;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;/** * @author: blogchong * @Blog: http://www.blogchong.com * @email: [e-mail] * @QQ_G: 191321336 * @version: 2014年12月21日 下午10:05:02 * @Des:Redis的java操作实例 */public class OptRedis {    // 非切片客户端链接对象    private Jedis jedis;    // 非切片链接池对象    private JedisPool jedisPool;    // 切片客户端链接对象    private ShardedJedis shardedJedis;    // 切片链接池    private ShardedJedisPool shardedJedisPool;    // IP以及端口    private String ip = "192.168.4.201";    private int port = 6379;    // 构造函数,完成客户端连接的工作    public OptRedis() {        initialPool();        initialShardedPool();        shardedJedis = shardedJedisPool.getResource();        jedis = jedisPool.getResource();    }    private void initialPool() {        // 池基本配置        JedisPoolConfig config = new JedisPoolConfig();        config.setMaxIdle(20);        config.setMaxIdle(5);        config.setMaxWaitMillis(1000l);        config.setTestOnBorrow(false);        jedisPool = new JedisPool(config, ip, port);    }    // 初始化切片池    private void initialShardedPool() {        // 池基本配置        JedisPoolConfig config = new JedisPoolConfig();        config.setMaxIdle(20);        config.setMaxIdle(5);        config.setMaxWaitMillis(1000l);        config.setTestOnBorrow(false);        // slave链接        List<JedisShardInfo> shards = new ArrayList<JedisShardInfo>();        shards.add(new JedisShardInfo(ip, 6379, "master"));        // 构造池        shardedJedisPool = new ShardedJedisPool(config, shards);    }    public void show() {        // key检测        testKey();        // string检测        testString();        // list检测        testList();        // set检测        testSet();        // sortedSet检测        testSortedSet();        // hash检测        testHash();        shardedJedisPool.returnResource(shardedJedis);    }    private void testKey() {        System.out.println("=============Test key==========================");        // 清空数据        System.out.println(jedis.flushDB());        System.out.println(jedis.echo("foo"));        // 判断key否存在        System.out.println(shardedJedis.exists("foo"));        shardedJedis.set("key", "values");        System.out.println(shardedJedis.exists("key"));    }    private void testString() {        System.out.println("=============Set Value========================");        // 清空数据        System.out.println(jedis.flushDB());        // 存储数据        shardedJedis.set("foo", "bar");        System.out.println(shardedJedis.get("foo"));        // 若key不存在，则存储        shardedJedis.setnx("foo", "foo not exits");        System.out.println(shardedJedis.get("foo"));        // 覆盖数据        shardedJedis.set("foo", "foo update");        System.out.println(shardedJedis.get("foo"));        // 追加数据        shardedJedis.append("foo", " hello, world");        System.out.println(shardedJedis.get("foo"));        // 设置key的有效期，并存储数据        shardedJedis.setex("foo", 2, "foo not exits");        System.out.println(shardedJedis.get("foo"));        try {            Thread.sleep(3000);        } catch (InterruptedException e) {        }        System.out.println(shardedJedis.get("foo"));        // 获取并更改数据        shardedJedis.set("foo", "foo update");        System.out.println(shardedJedis.getSet("foo", "foo modify"));        // 截取value的值        System.out.println(shardedJedis.getrange("foo", 1, 3));        System.out.println(jedis.mset("mset1", "mvalue1", "mset2", "mvalue2",                "mset3", "mvalue3", "mset4", "mvalue4"));        System.out.println(jedis.mget("mset1", "mset2", "mset3", "mset4"));        System.out.println(jedis.del(new String[] { "foo", "foo1", "foo3" }));    }    private void testList() {        System.out.println("=============Test list==========================");        // 清空数据        System.out.println(jedis.flushDB());        // 添加数据        shardedJedis.lpush("lists", "vector");        shardedJedis.lpush("lists", "ArrayList");        shardedJedis.lpush("lists", "LinkedList");        // 数组长度        System.out.println(shardedJedis.llen("lists"));        // 排序        // System.out.println(shardedJedis.sort("lists"));        // 字串        System.out.println(shardedJedis.lrange("lists", 0, 3));        // 修改列表中单个值        shardedJedis.lset("lists", 0, "hello list!");        // 获取列表指定下标的值        System.out.println(shardedJedis.lindex("lists", 1));        // 删除列表指定下标的值        System.out.println(shardedJedis.lrem("lists", 1, "vector"));        // 删除区间以外的数据        System.out.println(shardedJedis.ltrim("lists", 0, 1));        // 列表出栈        System.out.println(shardedJedis.lpop("lists"));        // 整个列表值        System.out.println(shardedJedis.lrange("lists", 0, -1));    }    private void testSet() {        System.out.println("=============Test Set==========================");        // 清空数据        System.out.println(jedis.flushDB());        // 添加数据        shardedJedis.sadd("sets", "HashSet");        shardedJedis.sadd("sets", "SortedSet");        shardedJedis.sadd("sets", "TreeSet");        // 判断value是否在列表中        System.out.println(shardedJedis.sismember("sets", "TreeSet"));        // 整个列表值        System.out.println(shardedJedis.smembers("sets"));        // 删除指定元素        System.out.println(shardedJedis.srem("sets", "SortedSet"));        // 出栈        System.out.println(shardedJedis.spop("sets"));        System.out.println(shardedJedis.smembers("sets"));        // 进行sadd操作        shardedJedis.sadd("sets1", "HashSet1");        shardedJedis.sadd("sets1", "SortedSet1");        shardedJedis.sadd("sets1", "TreeSet");        shardedJedis.sadd("sets2", "HashSet2");        shardedJedis.sadd("sets2", "SortedSet1");        shardedJedis.sadd("sets2", "TreeSet1");        // 交集        System.out.println(jedis.sinter("sets1", "sets2"));        // 并集        System.out.println(jedis.sunion("sets1", "sets2"));        // 差集        System.out.println(jedis.sdiff("sets1", "sets2"));    }    private void testSortedSet() {        System.out.println("=============Test Zset==========================");        // 清空数据        System.out.println(jedis.flushDB());        // 添加数据        shardedJedis.zadd("zset", 10.1, "hello");        shardedJedis.zadd("zset", 10.0, ":");        shardedJedis.zadd("zset", 9.0, "zset");        shardedJedis.zadd("zset", 11.0, "zset!");        // 元素个数        System.out.println(shardedJedis.zcard("zset"));        // 元素下标        System.out.println(shardedJedis.zscore("zset", "zset"));        // 集合子集        System.out.println(shardedJedis.zrange("zset", 0, -1));        // 删除元素        System.out.println(shardedJedis.zrem("zset", "zset!"));        System.out.println(shardedJedis.zcount("zset", 9.5, 10.5));        // 整个集合值        System.out.println(shardedJedis.zrange("zset", 0, -1));    }    private void testHash() {        System.out.println("=============Test Hash==========================");        // 清空数据        System.out.println(jedis.flushDB());        // 添加数据        shardedJedis.hset("hashs", "entryKey", "entryValue");        shardedJedis.hset("hashs", "entryKey1", "entryValue1");        shardedJedis.hset("hashs", "entryKey2", "entryValue2");        // 判断某个值是否存在        System.out.println(shardedJedis.hexists("hashs", "entryKey"));        // 获取指定的值        System.out.println(shardedJedis.hget("hashs", "entryKey"));        // 批量获取指定的值        System.out                .println(shardedJedis.hmget("hashs", "entryKey", "entryKey1"));        // 删除指定的值        System.out.println(shardedJedis.hdel("hashs", "entryKey"));        // 为key中的域 field 的值加上增量 increment        System.out.println(shardedJedis.hincrBy("hashs", "entryKey", 123456));        // 获取所有的keys        System.out.println(shardedJedis.hkeys("hashs"));        // 获取所有的values        System.out.println(shardedJedis.hvals("hashs"));    }    // 测试主类    public static void main(String[] args) {        new OptRedis().show();    }}