Redis list的实现为一个双向链表,即可以支持反向查找和遍历,更方便操作,不过带来了部分额外的内存开销,
代码语言:javascript复制/// <summary>
/// Redis list的实现为一个双向链表,即可以支持反向查找和遍历,更方便操作,不过带来了部分额外的内存开销,
/// Redis内部的很多实现,包括发送缓冲队列等也都是用的这个数据结构。
/// </summary>
public class RedisListService : RedisBase
{
#region 赋值
/// <summary>
/// 从左侧向list中添加值
/// </summary>
public void LPush(string key, string value)
{
base.iClient.PushItemToList(key, value);
}
/// <summary>
/// 从左侧向list中添加值,并设置过期时间
/// </summary>
public void LPush(string key, string value, DateTime dt)
{
base.iClient.PushItemToList(key, value);
base.iClient.ExpireEntryAt(key, dt);
}
/// <summary>
/// 从左侧向list中添加值,设置过期时间
/// </summary>
public void LPush(string key, string value, TimeSpan sp)
{
base.iClient.PushItemToList(key, value);
base.iClient.ExpireEntryIn(key, sp);
}
/// <summary>
/// 从右侧向list中添加值
/// </summary>
public void RPush(string key, string value)
{
base.iClient.PrependItemToList(key, value);
}
/// <summary>
/// 从右侧向list中添加值,并设置过期时间
/// </summary>
public void RPush(string key, string value, DateTime dt)
{
base.iClient.PrependItemToList(key, value);
base.iClient.ExpireEntryAt(key, dt);
}
/// <summary>
/// 从右侧向list中添加值,并设置过期时间
/// </summary>
public void RPush(string key, string value, TimeSpan sp)
{
base.iClient.PrependItemToList(key, value);
base.iClient.ExpireEntryIn(key, sp);
}
/// <summary>
/// 添加key/value
/// </summary>
public void Add(string key, string value)
{
base.iClient.AddItemToList(key, value);
}
/// <summary>
/// 添加key/value ,并设置过期时间
/// </summary>
public void Add(string key, string value, DateTime dt)
{
base.iClient.AddItemToList(key, value);
base.iClient.ExpireEntryAt(key, dt);
}
/// <summary>
/// 添加key/value。并添加过期时间
/// </summary>
public void Add(string key, string value, TimeSpan sp)
{
base.iClient.AddItemToList(key, value);
base.iClient.ExpireEntryIn(key, sp);
}
/// <summary>
/// 为key添加多个值
/// </summary>
public void Add(string key, List<string> values)
{
base.iClient.AddRangeToList(key, values);
}
/// <summary>
/// 为key添加多个值,并设置过期时间
/// </summary>
public void Add(string key, List<string> values, DateTime dt)
{
base.iClient.AddRangeToList(key, values);
base.iClient.ExpireEntryAt(key, dt);
}
/// <summary>
/// 为key添加多个值,并设置过期时间
/// </summary>
public void Add(string key, List<string> values, TimeSpan sp)
{
base.iClient.AddRangeToList(key, values);
base.iClient.ExpireEntryIn(key, sp);
}
#endregion
#region 获取值
/// <summary>
/// 获取list中key包含的数据数量
/// </summary>
public long Count(string key)
{
return base.iClient.GetListCount(key);
}
/// <summary>
/// 获取key包含的所有数据集合
/// </summary>
public List<string> Get(string key)
{
return base.iClient.GetAllItemsFromList(key);
}
/// <summary>
/// 获取key中下标为star到end的值集合
/// </summary>
public List<string> Get(string key, int star, int end)
{
return base.iClient.GetRangeFromList(key, star, end);
}
#endregion
#region 阻塞命令
/// <summary>
/// 阻塞命令:从list为key的尾部移除一个值,并返回移除的值,阻塞时间为sp
/// </summary>
public string BlockingPopItemFromList(string key, TimeSpan? sp)
{
return base.iClient.BlockingPopItemFromList(key, sp);
}
/// <summary>
/// 阻塞命令:从多个list中尾部移除一个值,并返回移除的值&key,阻塞时间为sp
/// </summary>
public ItemRef BlockingPopItemFromLists(string[] keys, TimeSpan? sp)
{
return base.iClient.BlockingPopItemFromLists(keys, sp);
}
/// <summary>
/// 阻塞命令:从list中keys的尾部移除一个值,并返回移除的值,阻塞时间为sp
/// </summary>
public string BlockingDequeueItemFromList(string key, TimeSpan? sp)
{
return base.iClient.BlockingDequeueItemFromList(key, sp);
}
/// <summary>
/// 阻塞命令:从多个list中尾部移除一个值,并返回移除的值&key,阻塞时间为sp
/// </summary>
public ItemRef BlockingDequeueItemFromLists(string[] keys, TimeSpan? sp)
{
return base.iClient.BlockingDequeueItemFromLists(keys, sp);
}
/// <summary>
/// 阻塞命令:从list中一个fromkey的尾部移除一个值,添加到另外一个tokey的头部,并返回移除的值,阻塞时间为sp
/// </summary>
public string BlockingPopAndPushItemBetweenLists(string fromkey, string tokey, TimeSpan? sp)
{
return base.iClient.BlockingPopAndPushItemBetweenLists(fromkey, tokey, sp);
}
#endregion
#region 删除
/// <summary>
/// 从尾部移除数据,返回移除的数据
/// </summary>
public string PopItemFromList(string key)
{
var sa = base.iClient.CreateSubscription();
return base.iClient.PopItemFromList(key);
}
/// <summary>
/// 从尾部移除数据,返回移除的数据
/// </summary>
public string DequeueItemFromList(string key)
{
return base.iClient.DequeueItemFromList(key);
}
/// <summary>
/// 移除list中,key/value,与参数相同的值,并返回移除的数量
/// </summary>
public long RemoveItemFromList(string key, string value)
{
return base.iClient.RemoveItemFromList(key, value);
}
/// <summary>
/// 从list的尾部移除一个数据,返回移除的数据
/// </summary>
public string RemoveEndFromList(string key)
{
return base.iClient.RemoveEndFromList(key);
}
/// <summary>
/// 从list的头部移除一个数据,返回移除的值
/// </summary>
public string RemoveStartFromList(string key)
{
return base.iClient.RemoveStartFromList(key);
}
#endregion
#region 其它
/// <summary>
/// 从一个list的尾部移除一个数据,添加到另外一个list的头部,并返回移动的值
/// </summary>
public string PopAndPushItemBetweenLists(string fromKey, string toKey)
{
return base.iClient.PopAndPushItemBetweenLists(fromKey, toKey);
}
public void TrimList(string key, int start, int end)
{
base.iClient.TrimList(key, start, end);
}
#endregion
#region 发布订阅
public void Publish(string channel, string message)
{
base.iClient.PublishMessage(channel, message);
}
public void Subscribe(string channel, Action<string, string, IRedisSubscription> actionOnMessage)
{
var subscription = base.iClient.CreateSubscription();
subscription.OnSubscribe = c =>
{
Console.WriteLine($"订阅频道{c}");
Console.WriteLine();
};
//取消订阅
subscription.OnUnSubscribe = c =>
{
Console.WriteLine($"取消订阅 {c}");
Console.WriteLine();
};
subscription.OnMessage = (c, s) =>
{
actionOnMessage(c, s, subscription);
};
Console.WriteLine($"开始启动监听 {channel}");
subscription.SubscribeToChannels(channel); //blocking
}
public void UnSubscribeFromChannels(string channel)
{
var subscription = base.iClient.CreateSubscription();
subscription.UnSubscribeFromChannels(channel);
}
#endregion
}
我在这里将注解添加上去,有不正确之处,欢迎指正、
代码语言:javascript复制 //尾部追加数据
client.PushItemToList(listId, value);
//设置过期时间
client.ExpireEntryAt(key, expireAt);
//设置滑动过期时间
client.ExpireEntryIn(key, expireIn);
client.PrependItemToList(listId, value);
client.AddItemToList(listId, value);
client.AddRangeToList(listId, values);
//获取listId包含的数据数量
client.GetListCount(listId);
//获取listId包含的所有数据集合
client.GetAllItemsFromList(listId);
//获取listId中下标为startingFrom到endingAt的值集合
client.GetRangeFromList(listId, startingFrom, endingAt);
// 阻塞命令:从listId的头部移除一个值,并返回移除的值,阻塞时间为sp
client.BlockingPopItemFromList(listId, timeOut);
// 阻塞命令:从多个listId的尾部移除一个值,并返回移除的值,阻塞时间为sp
client.BlockingPopItemFromLists(listIds, timeOut);
// 阻塞命令:从listId的尾部移除一个值,并返回移除的值,阻塞时间为sp
client.BlockingDequeueItemFromList(listId, timeOut);
// 阻塞命令:从多个listId的尾部移除一个值,并返回移除的值,阻塞时间为sp
client.BlockingDequeueItemFromLists(listIds, timeOut);
//阻塞命令:从一个fromListId的头部移除一个值,添加到另外一个toListId的头部,并返回移除的值,阻塞时间为sp
client.BlockingPopAndPushItemBetweenLists(fromListId, toListId, timeOut);
//从尾部移除数据,返回移除的数据
client.PopItemFromList(listId);
// 从尾部移除数据,返回移除的数据
client.DequeueItemFromList(listId);
//移除listId中,与value相同的值的数据,并返回移除的数量
client.RemoveItemFromList(listId, value);
// 从list的尾部移除一个数据,返回移除的数据
client.RemoveEndFromList(listId);
//从list的头部移除一个数据,返回移除的数据
client.RemoveStartFromList(listId);
//从一个list的尾部移除一个数据,添加到另外一个list的头部,并返回移动的值
client.PopAndPushItemBetweenLists(fromListId, toListId);
添加
代码语言:javascript复制 //1. 添加
//1.1
client.PushItemToList("group1", "你好1");
client.PushItemToList("group1", "你好2");
client.PushItemToList("group1", "你好3");
client.PushItemToList("group1", "你好4");
client.PushItemToList("group1", "你好5");
//1.2
client.PrependItemToList("group2", "早上1");
client.PrependItemToList("group2", "早上2");
client.PrependItemToList("group2", "早上3");
client.PrependItemToList("group2", "早上4");
client.PrependItemToList("group2", "早上5");
//1.3
client.AddItemToList("group3", "中午1");
client.AddItemToList("group3", "中午2");
client.AddItemToList("group3", "中午3");
client.AddItemToList("group3", "中午4");
client.AddItemToList("group3", "中午5");
//1.4
List<string> values1 = new List<string>() { "晚上1", "晚上2", "晚上3", "晚上4", "晚上5" };
client.AddRangeToList("group4",values1);
插入
代码语言:javascript复制 //2.插入
//2.1尾部插入
client.PushItemToList("group3", "a1");
client.PushItemToList("group3", "a2");
client.PushItemToList("group3", "a3");
//2.2头部插入
client.PrependItemToList("group3", "b1");
client.PrependItemToList("group3", "b2");
client.PrependItemToList("group3", "b3");
从效果图看,Push方式是往链表的尾部逐步插入数据,Prepend是往链表的头部逐步插入数据
移除
代码语言:javascript复制 //3.删除
client.PopItemFromList("group1");
client.PopItemFromList("group1");
client.PopItemFromList("group1");
client.DequeueItemFromList("group3");
client.DequeueItemFromList("group3");
client.RemoveEndFromList("group4");
client.RemoveStartFromList("group4");
client.RemoveStartFromList("group4");
对比前后的数据变化,可以得出Pop、Dequeue方法效果都是一样,删除链表尾部数据。RemoveEnd 删除链表尾部数据、RemoveStart删除链表头部数据
订阅发布
代码语言:javascript复制 //4.发布订阅
//4.1(服务器)发布消息
client.PublishMessage(toChanner, message);
//4.2 (客户端)订阅
var subscription= client.CreateSubscription();
//4.2.1(客户端)订阅频道
subscription.SubscribeToChannels(channels);
//4.2.2 (客户端)取消频道
subscription.UnSubscribeFromChannels(channels);
其它的一些api方法,就不做数据效果展示了~