一、什么 Redis
REmote DIctionary Server,简称 Redis,是一个类似于Memcached的Key-Value存储系统。相比Memcached,它支持更丰富的数据结构,包括string(字符串)、list(链表)、set(集合)、zset(sorted set --有序集合)和hash(哈希类型),并提供了数据持久化机制,在某些场景下,你完全可以把它当做非关系型数据库来使用。它是一个高性能的存储系统,能支持超过 100K+ 每秒的读写频率。同时还支持消息的发布/订阅,从而让你在构建高性能消息队列系统时多了另一种选择。
二、下载
点击这里下载。
我在这里下载的是redis-3.0.0-beta5版,redis从3.0开始支持集群。
三、安装
以下安装均为 OSX 操作系统上的步骤:
1、找到你刚刚下载的 redis-3.0.0-beta5.tar.gz文件,解压这个文件。
2、将解压后的文件夹拷贝到你很容易找到的目录下,并修改文件夹名为redis,因为版本号太长了。
2、打开终端,进入redis文件夹,命令如下:
Last login: Fri May 30 21:33:25 on ttys000
zhaoguihuadediannao:~ zhaogh$ cd applications/dev/redis
zhaoguihuadediannao:redis zhaogh$
3、在命令提示符出输入 make 命令,稍等片刻,便能完成安装。如果系统提示找不到 make 命令,请参考这篇文章。
装好了,是不是有点小激动。抽根烟,我们继续吧。
四、使用
1、启动服务,先进入 src 目录,然后执行 redis-server。
zhaoguihuadediannao:redis zhaogh$ cd src
zhaoguihuadediannao:src zhaogh$ ./redis-server
你将会看到:
2343:M 30 May 21:42:50.741 # Server started, Redis version 2.9.54
2343:M 30 May 21:42:50.741 * The server is now ready to accept connections on port 6379
我没看错吧,TMD我明明下载的3.0.0,怎么显示 Redis version 2.9.54 ? 好吧,这不是重点,我也懒得追究了。
6379 是 redis 默认端口,在后续的文章中你将知道如何修改这个默认端口。
2、客户端连接。
你会发现在执行了第四步之后,我们无法再执行其他命令了,怎么办?因为redis独占了此进程,后面告诉你们如果将它修改为后台运行。
我们暂且再打开一个终端吧。还是先进入 src 目录:
zhaoguihuadediannao:~ zhaogh$ cd applications/dev/redis/src
zhaoguihuadediannao:src zhaogh$
输入 ./redis-cli 命令:
zhaoguihuadediannao:src zhaogh$ ./redis-cli
127.0.0.1:6379>
已经连接上了,哈哈哈。
3、测试几个 redis 命令:
127.0.0.1:6379> set testkey001 testkey001
OK
127.0.0.1:6379> get testkey001
"testkey001"
127.0.0.1:6379> append testkey001 aaa
(integer) 13
127.0.0.1:6379> get testkey001
"testkey001aaa"
127.0.0.1:6379>
4、关闭连接,执行 quit 命令
127.0.0.1:6379> quit
zhaoguihuadediannao:src zhaogh$
5、关闭服务。
由于我们刚才已经退出了客户端,我们再次连接,并执行 shutdown 命令:
127.0.0.1:6379> shutdown
下面提供一个resdis帮助类
/// <summary>
/// Redis公共辅助类库
/// </summary>
public class RedisHelper : IDisposable
{
public RedisClient Redis = new RedisClient("127.0.0.1", 6379);
//缓存池
PooledRedisClientManager prcm = new PooledRedisClientManager();
//默认缓存过期时间单位秒
public int secondsTimeOut = 30 * 60;
/// <summary>
/// 缓冲池
/// </summary>
/// <param name="readWriteHosts"></param>
/// <param name="readOnlyHosts"></param>
/// <returns></returns>
public static PooledRedisClientManager CreateManager(
string[] readWriteHosts, string[] readOnlyHosts)
{
return new PooledRedisClientManager(readWriteHosts, readOnlyHosts,
new RedisClientManagerConfig
{
MaxWritePoolSize = readWriteHosts.Length * 5,
MaxReadPoolSize = readOnlyHosts.Length * 5,
AutoStart = true,
});// { RedisClientFactory = (IRedisClientFactory)RedisCacheClientFactory.Instance.CreateRedisClient("127.0.0.1", 6379) };
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="openPooledRedis">是否开启缓冲池</param>
public RedisHelper(bool openPooledRedis = false)
{
if (openPooledRedis)
{
prcm = CreateManager(new string[] { "127.0.0.1:6379" }, new string[] { "127.0.0.1:6379" });
Redis = prcm.GetClient() as RedisClient;
}
}
#region Key/Value存储
/// <summary>
/// 设置缓存
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key">缓存建</param>
/// <param name="t">缓存值</param>
/// <param name="timeout">过期时间,单位秒,-1:不过期,0:默认过期时间</param>
/// <returns></returns>
public bool Set<T>(string key, T t, int timeout = 0)
{
if (timeout >= 0)
{
if (timeout > 0)
{
secondsTimeOut = timeout;
}
Redis.Expire(key, secondsTimeOut);
}
return Redis.Add<T>(key, t);
}
/// <summary>
/// 获取
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public T Get<T>(string key)
{
return Redis.Get<T>(key);
}
/// <summary>
/// 删除
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public bool Remove(string key)
{
return Redis.Remove(key);
}
public bool Add<T>(string key, T t, int timeout)
{
if (timeout >= 0)
{
if (timeout > 0)
{
secondsTimeOut = timeout;
}
Redis.Expire(key, secondsTimeOut);
}
return Redis.Add<T>(key, t);
}
#endregion
#region 链表操作
/// <summary>
/// 根据IEnumerable数据添加链表
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="listId"></param>
/// <param name="values"></param>
/// <param name="timeout"></param>
public void AddList<T>(string listId, IEnumerable<T> values, int timeout = 0)
{
Redis.Expire(listId, 60);
IRedisTypedClient<T> iredisClient = Redis.As<T>();
if (timeout >= 0)
{
if (timeout > 0)
{
secondsTimeOut = timeout;
}
Redis.Expire(listId, secondsTimeOut);
}
var redisList = iredisClient.Lists[listId];
redisList.AddRange(values);
iredisClient.Save();
}
/// <summary>
/// 添加单个实体到链表中
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="listId"></param>
/// <param name="Item"></param>
/// <param name="timeout"></param>
public void AddEntityToList<T>(string listId, T Item, int timeout = 0)
{
IRedisTypedClient<T> iredisClient = Redis.As<T>();
if (timeout >= 0)
{
if (timeout > 0)
{
secondsTimeOut = timeout;
}
Redis.Expire(listId, secondsTimeOut);
}
var redisList = iredisClient.Lists[listId];
redisList.Add(Item);
iredisClient.Save();
}
/// <summary>
/// 获取链表
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="listId"></param>
/// <returns></returns>
public IEnumerable<T> GetList<T>(string listId)
{
IRedisTypedClient<T> iredisClient = Redis.As<T>();
return iredisClient.Lists[listId];
}
/// <summary>
/// 在链表中删除单个实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="listId"></param>
/// <param name="t"></param>
public void RemoveEntityFromList<T>(string listId, T t)
{
IRedisTypedClient<T> iredisClient = Redis.As<T>();
var redisList = iredisClient.Lists[listId];
redisList.RemoveValue(t);
iredisClient.Save();
}
/// <summary>
/// 根据lambada表达式删除符合条件的实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="listId"></param>
/// <param name="func"></param>
public void RemoveEntityFromList<T>(string listId, Func<T, bool> func)
{
using (IRedisTypedClient<T> iredisClient = Redis.As<T>())
{
var redisList = iredisClient.Lists[listId];
T value = redisList.Where(func).FirstOrDefault();
redisList.RemoveValue(value);
iredisClient.Save();
}
}
#endregion
/// <summary>
/// 释放资源
/// </summary>
public void Dispose()
{
if (Redis != null)
{
Redis.Dispose();
Redis = null;
}
GC.Collect();
}
https://www.cnblogs.com/kuangood/p/6858196.html