111 lines
3.2 KiB
C#
111 lines
3.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace XiaoZhiSharp.Kernels
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{
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[Obsolete]
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public class SingletonProviderUnsafe<T> where T : new()
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{
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SingletonProviderUnsafe() { }
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public static T Instance
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{
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get { return SingletonCreator.instance; }
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}
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class SingletonCreator
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{
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static SingletonCreator() { }
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internal static readonly T instance = new T();
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}
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}
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/// <summary>
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/// 静态属性是有先后顺序的，如果在静态属性中使用了其他静态属性，那么被引用的静态属性必须在引用的静态属性之前定义。
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/// 单例模式
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/// </summary>
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/// <typeparam name="T"></typeparam>
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public class SingletonProvider<T> where T : new()
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{
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private static T m_instance;
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private static readonly object sync = new object();
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private SingletonProvider() { }
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/// <summary>
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/// 用法：SingletonProvider<myclass>.Instance 获取该类的单例
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/// </summary>
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public static T Instance
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{
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get
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{
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if (m_instance == null)
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{
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lock (sync)
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{
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if (m_instance == null)
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{
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//Console.WriteLine("创建了一个对象 ");
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m_instance = new T();
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}
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}
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}
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return m_instance;
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}
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}
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}
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/// <summary>
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/// 泛型单例基类
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/// 静态属性是有先后顺序的，如果在静态属性中使用了其他静态属性，那么被引用的静态属性必须在引用的静态属性之前定义。
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/// </summary>
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/// <typeparam name="T"></typeparam>
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public class Singleton<T> where T : class
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{
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// 使用Lazy<T>确保线程安全的延迟初始化
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private static readonly Lazy<T> instance = new Lazy<T>(() => CreateInstanceOfT(), isThreadSafe: true);
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// 提供获取单例实例的静态属性
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public static T Instance => instance.Value;
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// 保护的构造函数，防止直接实例化
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protected Singleton()
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{
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// 在此处可以添加其他初始化逻辑
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}
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// 创建T类型的实例
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private static T CreateInstanceOfT()
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{
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return Activator.CreateInstance(typeof(T), true) as T;
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}
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}
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/*示例
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internal class MySingletonClass : Singleton<MySingletonClass>
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{
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// 在此处可以添加其他成员或方法
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private MySingletonClass()
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{
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// 在此处可以添加初始化逻辑
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}
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}
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internal class Test
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{
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private void Method()
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{
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// 使用单例实例
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MySingletonClass instance1 = MySingletonClass.Instance;
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MySingletonClass instance2 = MySingletonClass.Instance;
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// 验证是否为同一实例
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Console.WriteLine($"instance1 == instance2: {instance1 == instance2}");
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// 可以在这里添加其他业务逻辑...
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}
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}
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*/
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}
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