記錄自己使用.net6

首先依賴注入 懶得下載autofac了 直接用程式集進行批量注入

 private static WebApplicationBuilder builder;
        internal static void Load(WebApplicationBuilder web)
        {
            builder = web;
            builder.Services.Configure<ApiBehaviorOptions>(options => options.SuppressModelStateInvalidFilter = true);
             Assembly.Load("TestApplication").ExportedTypes.LoadImp();
            builder.Services.AddSingleton(typeof(ITestGren<>), typeof(TestGren<>));
        }
        private static void LoadImp(this IEnumerable<Type> type)
        {
           type= type.Where(d => d.IsClass&&!d.IsAbstract);
            foreach (var item in type)
            {   ///檢查是不是泛型類
                if (item.GetGenericArguments().Length is 0) item.GetInterfaces().LoadInter(item);
            }
        }
        private static void LoadInter(this Type[] type,Type ImpType)
        {
            foreach (var item in type)
            {
               if (item.GetGenericArguments().Length is 0) builder.Services.AddSingleton(item,ImpType);
            }
        }

可惜泛型類不能直接注入 需要自己寫，反正自己也不怎么寫泛型類

然后我們的介面要驗簽就創建一個類來繼承ValidationAttribute特性

 [CheckSgValidation(ErrorMessage ="簽名錯誤")]
    public class TestModel
    {
        public string Sg { get; set; }
    }
    public class CsModel:TestModel
    {
        public int MyProperty { get; set; }
    }
    [AttributeUsage(AttributeTargets.Class )]
    public class CheckSgValidation: ValidationAttribute
    {
        private string SgName = "Sg";
        public CheckSgValidation(string sgName)
        {
            this.SgName = sgName;
        }
        public CheckSgValidation() { }
        public override bool IsValid(object? value)
        {
            StringBuilder sb = new StringBuilder();
            foreach (var item in value.GetType().GetProperties())
            {
                if (item.Name == SgName) continue;
                sb.Append(item.GetValue(value));
            }
            return sb.ToString() == value.GetType().GetProperty(SgName).GetValue(value).ToString();
        }
    }

我是用單獨一個類來寫上我們自定義的特性, 嘗試過用運算式樹進行驗證的 可惜引數為object就不行 不知道怎么處理這個問題

這樣用反射確實可以用

 驗證redis登錄驗證碼或其他傳入key,value的特性

    internal interface IRedis
    {
        bool Get(string key);
        bool GetDelete(string key);
    }
    internal class Redis : IRedis
    {
        internal Redis(string conn) { }
        public bool Get(string key){ return true; }

        public bool GetDelete(string key){ return false; }
    }
    internal static class StaticSingle
    {
        public static readonly IRedis _redis;
        static StaticSingle()
        {
            ///本質上單列式一種多型  我們這個靜態建構式式啟動時只運行一次 可以這樣實作單例
            _redis = new Redis("127");
        }
    }
    [AttributeUsage(AttributeTargets.Class|AttributeTargets.Property)]
    public class CheckRedisValidation : ValidationAttribute
    {
        public string key = string.Empty;
        public string value = https://www.cnblogs.com/bay-max-/p/string.Empty;
        public bool IsDel=true;
        public sealed override bool IsValid(object? value)
        {
            ///為空說明是放入在屬性上
           if(this.key is null)
            {
                var array= value.ToString().Split(',');
                if (array.Length is 1) return false;
                ///value: "key,value"
                ///這里自己就不寫讀取比較了
                return IsDel ? StaticSingle._redis.GetDelete(array[0]) : StaticSingle._redis.Get(key);
            }
            else
            {
                key = value.GetType().GetProperty(key).GetValue(value).ToString();
                this.value = https://www.cnblogs.com/bay-max-/p/value.GetType().GetProperty(this.value).GetValue(value).ToString().ToLower();
                return IsDel ? StaticSingle._redis.GetDelete(key) : StaticSingle._redis.Get(key);
            }
        }
    }

標籤：.NET Core

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