添加项目文件。

Core/MAX.Core/Caches/ICache.cs

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+using System;
+
+namespace MAX.Core.Caches;
+
+/// <summary>
+/// 缓存
+/// </summary>
+public interface ICache
+{
+	/// <summary>
+	/// 是否存在指定键的缓存
+	/// </summary>
+	/// <param name="key">缓存键</param>
+	bool Exists(string key);
+	/// <summary>
+	/// 从缓存中获取数据
+	/// </summary>
+	/// <param name="key"></param>
+	/// <returns></returns>
+	T Get<T>(string key);
+	/// <summary>
+	/// 从缓存中获取数据，如果不存在，则执行获取数据操作并添加到缓存中
+	/// </summary>
+	/// <typeparam name="T">缓存数据类型</typeparam>
+	/// <param name="key">缓存键</param>
+	/// <param name="func">获取数据操作</param>
+	T Get<T>(string key, Func<T> func);
+	/// <summary>
+	/// 当缓存数据不存在则添加，已存在不会添加，添加成功返回true
+	/// </summary>
+	/// <typeparam name="T">缓存数据类型</typeparam>
+	/// <param name="key">缓存键</param>
+	/// <param name="value">值</param>
+	bool TryAdd<T>(string key, T value);
+	/// <summary>
+	/// 覆盖添加
+	/// </summary>
+	/// <typeparam name="T"></typeparam>
+	/// <param name="key"></param>
+	/// <param name="value"></param>
+	/// <returns></returns>
+	bool OverlayAdd<T>(string key, T value);
+	/// <summary>
+	/// 移除缓存
+	/// </summary>
+	/// <param name="key">缓存键</param>
+	void Remove(string key);
+	/// <summary>
+	/// 清空缓存
+	/// </summary>
+	void Clear();
+}
+
+public interface ICache<T>
+{
+	/// <summary>
+	/// 是否存在指定键的缓存
+	/// </summary>
+	/// <param name="key">缓存键</param>
+	bool Exists(string key);
+
+	/// <summary>
+	/// 从缓存中获取数据，如果不存在，则执行获取数据操作并添加到缓存中
+	/// </summary>
+	/// <typeparam name="T">缓存数据类型</typeparam>
+	/// <param name="key">缓存键</param>
+	T Get(string key);
+	/// <summary>
+	/// 从缓存中获取数据，如果不存在，则执行获取数据操作并添加到缓存中
+	/// </summary>
+	/// <typeparam name="T">缓存数据类型</typeparam>
+	/// <param name="key">缓存键</param>
+	/// <param name="func">获取数据操作</param>
+	T Get(string key, Func<T> func);
+	/// <summary>
+	/// 当缓存数据不存在则添加，已存在不会添加，添加成功返回true
+	/// </summary>
+	/// <typeparam name="T">缓存数据类型</typeparam>
+	/// <param name="key">缓存键</param>
+	/// <param name="value">值</param>
+	bool TryAdd(string key, T value);
+	/// <summary>
+	/// 覆盖添加
+	/// </summary>
+	/// <typeparam name="T"></typeparam>
+	/// <param name="key"></param>
+	/// <param name="value"></param>
+	/// <returns></returns>
+	bool OverlayAdd(string key, T value);
+	/// <summary>
+	/// 移除缓存
+	/// </summary>
+	/// <param name="key">缓存键</param>
+	void Remove(string key);
+	/// <summary>
+	/// 清空缓存
+	/// </summary>
+	void Clear();
+}

Core/MAX.Core/Caches/MemoryCache.cs

@@ -0,0 +1,168 @@
+
+using MAX.Core.DependencyInjection;
+using MAX.Core.Infrastructure;
+using System;
+using System.Collections.Concurrent;
+using System.Linq;
+
+namespace MAX.Core.Caches;
+
+/// <summary>
+/// 内存缓存
+/// </summary>
+public class MemoryCache : ICache, ISingletonDependency
+{
+	//private static readonly Object _locker = new object();
+	private readonly ConcurrentDictionary<string, object> _cache = new();
+
+	public virtual void Clear()
+	{
+		_cache.Clear();
+	}
+
+	public virtual bool Exists(string key)
+	{
+		return _cache.ContainsKey(key);
+	}
+	public virtual T Get<T>(string key)
+	{
+		if (Exists(key))
+		{
+			return (T)_cache[key];
+		}
+		return default;
+	}
+	public virtual TResult Get<TResult>(string key, Func<TResult> func)
+	{
+		if (Exists(key))
+		{
+			return (TResult)_cache[key];
+		}
+		else
+		{
+			if (func != null)
+			{
+				TResult t = func();
+				TryAdd(key, t);
+				return t;
+			}
+		}
+		return default;
+	}
+
+	public virtual bool OverlayAdd<T>(string key, T value)
+	{
+		if (Exists(key))
+		{
+			_cache[key] = value;
+		}
+		else
+		{
+			_cache.TryAdd(key, value);
+		}
+		return true;
+	}
+
+	public virtual void Remove(string key)
+	{
+		_cache.TryRemove(key, out _);
+	}
+
+	public virtual bool TryAdd<T>(string key, T value)
+	{
+		_cache.AddOrUpdate(key, value, (oldkey, oldvalue) => value);
+		return true;
+	}
+	/// <summary>
+	/// 获取所有Key
+	/// </summary>
+	/// <returns></returns>
+	public string[] AllKeys()
+	{
+		return _cache.Keys.ToArray();
+	}
+}
+/// <summary>
+/// 单例缓存抽象类
+/// </summary>
+/// <typeparam name="TModel">单例对象</typeparam>
+/// <typeparam name="TValue">缓存类型</typeparam>
+public abstract class SingleInstanceLittleCache<TModel, TValue> : SingleInstance<TModel>, ICache<TValue> where TModel : class
+{
+	private readonly ConcurrentDictionary<string, TValue> _cache = new();
+	/// <summary>
+	/// 自定义前缀
+	/// </summary>
+	//public abstract string KeyPrefix { get; }
+	//private string FormatKey(string key)
+	//{
+	//    return KeyPrefix + key;
+	//}
+
+	public virtual void Clear()
+	{
+		_cache.Clear();
+	}
+
+	public virtual bool Exists(string key)
+	{
+		return _cache.ContainsKey(key);
+	}
+	public virtual TValue Get(string key)
+	{
+		if (Exists(key))
+		{
+			return _cache[key];
+		}
+		return default;
+	}
+	public virtual TValue Get(string key, Func<TValue> func)
+	{
+		if (Exists(key))
+		{
+			return _cache[key];
+		}
+		else
+		{
+			if (func != null)
+			{
+				TValue t = func();
+				TryAdd(key, t);
+				return t;
+			}
+		}
+		return default;
+	}
+
+	public virtual bool OverlayAdd(string key, TValue value)
+	{
+		if (Exists(key))
+		{
+			_cache[key] = value;
+		}
+		else
+		{
+			_cache.TryAdd(key, value);
+		}
+		return true;
+	}
+
+	public virtual void Remove(string key)
+	{
+		_cache.TryRemove(key, out _);
+	}
+
+	public virtual bool TryAdd(string key, TValue value)
+	{
+		_cache.AddOrUpdate(key, value, (oldkey, oldvalue) => value);
+		return true;
+	}
+	/// <summary>
+	/// 获取所有Key
+	/// </summary>
+	/// <returns></returns>
+	public string[] AllKeys()
+	{
+		return _cache.Keys.ToArray();
+	}
+}