|
@@ -13,490 +13,513 @@ using Masuit.Tools.Systems;
|
|
|
|
|
|
namespace Masuit.Tools.Reflection
|
|
namespace Masuit.Tools.Reflection
|
|
{
|
|
{
|
|
- /// <summary>
|
|
|
|
- /// 反射操作辅助类,如获取或设置字段、属性的值等反射信息。
|
|
|
|
- /// </summary>
|
|
|
|
- public static class ReflectionUtil
|
|
|
|
- {
|
|
|
|
- #region 属性字段设置
|
|
|
|
-
|
|
|
|
- public static BindingFlags bf = BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static;
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 执行方法
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="obj">反射对象</param>
|
|
|
|
- /// <param name="methodName">方法名,区分大小写</param>
|
|
|
|
- /// <param name="args">方法参数</param>
|
|
|
|
- /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
|
|
|
|
- /// <returns>T类型</returns>
|
|
|
|
- public static T InvokeMethod<T>(this object obj, string methodName, object[] args)
|
|
|
|
- {
|
|
|
|
- return (T)obj.GetType().GetMethod(methodName, args.Select(o => o.GetType()).ToArray()).Invoke(obj, args);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 执行方法
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="obj">反射对象</param>
|
|
|
|
- /// <param name="methodName">方法名,区分大小写</param>
|
|
|
|
- /// <param name="args">方法参数</param>
|
|
|
|
- /// <returns>T类型</returns>
|
|
|
|
- public static void InvokeMethod(this object obj, string methodName, object[] args)
|
|
|
|
- {
|
|
|
|
- var type = obj.GetType();
|
|
|
|
- type.GetMethod(methodName, args.Select(o => o.GetType()).ToArray()).Invoke(obj, args);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 设置字段
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="obj">反射对象</param>
|
|
|
|
- /// <param name="name">字段名</param>
|
|
|
|
- /// <param name="value">值</param>
|
|
|
|
- public static void SetField<T>(this T obj, string name, object value) where T : class
|
|
|
|
- {
|
|
|
|
- SetProperty(obj, name, value);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取字段
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="obj">反射对象</param>
|
|
|
|
- /// <param name="name">字段名</param>
|
|
|
|
- /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
|
|
|
|
- /// <returns>T类型</returns>
|
|
|
|
- public static T GetField<T>(this object obj, string name)
|
|
|
|
- {
|
|
|
|
- return GetProperty<T>(obj, name);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取所有的字段信息
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="obj">反射对象</param>
|
|
|
|
- /// <returns>字段信息</returns>
|
|
|
|
- public static FieldInfo[] GetFields(this object obj)
|
|
|
|
- {
|
|
|
|
- FieldInfo[] fieldInfos = obj.GetType().GetFields(bf);
|
|
|
|
- return fieldInfos;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 设置属性
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="obj">反射对象</param>
|
|
|
|
- /// <param name="name">属性名</param>
|
|
|
|
- /// <param name="value">值</param>
|
|
|
|
- public static string SetProperty<T>(this T obj, string name, object value) where T : class
|
|
|
|
- {
|
|
|
|
- var parameter = Expression.Parameter(typeof(T), "e");
|
|
|
|
- var property = Expression.PropertyOrField(parameter, name);
|
|
|
|
- var before = Expression.Lambda(property, parameter).Compile().DynamicInvoke(obj);
|
|
|
|
- if (value == before)
|
|
|
|
- {
|
|
|
|
- return value?.ToString();
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- if (property.Type.IsGenericType && property.Type.GetGenericTypeDefinition() == typeof(Nullable<>))
|
|
|
|
- {
|
|
|
|
- typeof(T).GetProperty(name)?.SetValue(obj, value);
|
|
|
|
- }
|
|
|
|
- else
|
|
|
|
- {
|
|
|
|
- var valueExpression = Expression.Parameter(property.Type, "v");
|
|
|
|
- var assign = Expression.Assign(property, valueExpression);
|
|
|
|
- Expression.Lambda(assign, parameter, valueExpression).Compile().DynamicInvoke(obj, value);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- return before.ToJsonString();
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- private static readonly ConcurrentDictionary<string, Delegate> DelegateCache = new();
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取属性
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="obj">反射对象</param>
|
|
|
|
- /// <param name="name">属性名</param>
|
|
|
|
- /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
|
|
|
|
- /// <returns>T类型</returns>
|
|
|
|
- public static T GetProperty<T>(this object obj, string name)
|
|
|
|
- {
|
|
|
|
- var type = obj.GetType();
|
|
|
|
- if (DelegateCache.TryGetValue(type.Name + "." + name, out var func))
|
|
|
|
- {
|
|
|
|
- return (T)func.DynamicInvoke(obj);
|
|
|
|
- }
|
|
|
|
- var parameter = Expression.Parameter(type, "e");
|
|
|
|
- var property = Expression.PropertyOrField(parameter, name);
|
|
|
|
- func = Expression.Lambda(property, parameter).Compile();
|
|
|
|
- DelegateCache.TryAdd(type.Name + "." + name, func);
|
|
|
|
- return (T)func.DynamicInvoke(obj);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取所有的属性信息
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="obj">反射对象</param>
|
|
|
|
- /// <returns>属性信息</returns>
|
|
|
|
- public static PropertyInfo[] GetProperties(this object obj)
|
|
|
|
- {
|
|
|
|
- return obj.GetType().GetProperties(bf);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- #endregion 属性字段设置
|
|
|
|
-
|
|
|
|
- #region 获取Description
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取枚举值的Description信息
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name ="value">枚举值</param>
|
|
|
|
- /// <param name ="args">要格式化的对象</param>
|
|
|
|
- /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
- public static string GetDescription(this Enum value, params object[] args)
|
|
|
|
- {
|
|
|
|
- if (value == null)
|
|
|
|
- {
|
|
|
|
- throw new ArgumentNullException(nameof(value));
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- var type = value.GetType();
|
|
|
|
- if (!Enum.IsDefined(type, value))
|
|
|
|
- {
|
|
|
|
- return value.ToString();
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- FieldInfo fi = type.GetField(value.ToString());
|
|
|
|
- var attributes = (DescriptionAttribute[])fi.GetCustomAttributes(typeof(DescriptionAttribute), false);
|
|
|
|
- var text = attributes.Length > 0 ? attributes[0].Description : value.ToString();
|
|
|
|
- if (args is { Length: > 0 })
|
|
|
|
- {
|
|
|
|
- return string.Format(text, args);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- return text;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取枚举值的Description信息
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name ="value">枚举值</param>
|
|
|
|
- /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
- public static EnumDescriptionAttribute GetEnumDescription(this Enum value)
|
|
|
|
- {
|
|
|
|
- return GetEnumDescriptions(value).FirstOrDefault();
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取枚举值的Description信息
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name ="value">枚举值</param>
|
|
|
|
- /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
- public static NullableDictionary<string, (string Description, string Display)> GetTypedEnumDescriptions(this Enum value)
|
|
|
|
- {
|
|
|
|
- return GetEnumDescriptions(value).ToDictionarySafety(a => a.Language, a => (Description: a.Description, Display: a.Display));
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取枚举值的Description信息
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name ="value">枚举值</param>
|
|
|
|
- /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
- public static IEnumerable<EnumDescriptionAttribute> GetEnumDescriptions(this Enum value)
|
|
|
|
- {
|
|
|
|
- if (value == null)
|
|
|
|
- {
|
|
|
|
- throw new ArgumentNullException(nameof(value));
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- var type = value.GetType();
|
|
|
|
- if (!Enum.IsDefined(type, value))
|
|
|
|
- {
|
|
|
|
- return new List<EnumDescriptionAttribute>();
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- FieldInfo fi = type.GetField(value.ToString());
|
|
|
|
- return fi.GetCustomAttributes(typeof(EnumDescriptionAttribute), false).OfType<EnumDescriptionAttribute>();
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 根据成员信息获取Description信息
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="member">成员信息</param>
|
|
|
|
- /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
- public static string GetDescription(this MemberInfo member)
|
|
|
|
- {
|
|
|
|
- return GetDescription(member, null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 根据成员信息获取Description信息
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="member">成员信息</param>
|
|
|
|
- /// <param name="args">格式化占位对象</param>
|
|
|
|
- /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
- public static string GetDescription(this MemberInfo member, params object[] args)
|
|
|
|
- {
|
|
|
|
- if (member == null)
|
|
|
|
- {
|
|
|
|
- throw new ArgumentNullException(nameof(member));
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- return member.IsDefined(typeof(DescriptionAttribute), false) ? member.GetAttribute<DescriptionAttribute>().Description : string.Empty;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- #endregion 获取Description
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取对象的Attribute
|
|
|
|
- /// </summary>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetAttribute<T>(this ICustomAttributeProvider provider) where T : Attribute
|
|
|
|
- {
|
|
|
|
- var attributes = provider.GetCustomAttributes(typeof(T), true);
|
|
|
|
- return attributes.Length > 0 ? attributes[0] as T : null;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取对象的Attributes
|
|
|
|
- /// </summary>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static IEnumerable<T> GetAttributes<T>(this ICustomAttributeProvider provider) where T : Attribute
|
|
|
|
- {
|
|
|
|
- return provider.GetCustomAttributes(typeof(T), true).OfType<T>();
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- #region 资源获取
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 根据资源名称获取图片资源流
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="_"></param>
|
|
|
|
- /// <param name="resourceName">资源的名称</param>
|
|
|
|
- /// <returns>数据流</returns>
|
|
|
|
- public static Stream GetImageResource(this Assembly _, string resourceName)
|
|
|
|
- {
|
|
|
|
- Assembly asm = Assembly.GetExecutingAssembly();
|
|
|
|
- return asm.GetManifestResourceStream(resourceName);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取程序集资源的文本资源
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="assemblyType">程序集中的某一对象类型</param>
|
|
|
|
- /// <param name="resName">资源项名称</param>
|
|
|
|
- /// <param name="resourceHolder">资源的根名称。例如,名为“MyResource.en-US.resources”的资源文件的根名称为“MyResource”。</param>
|
|
|
|
- public static string GetStringRes(this Type assemblyType, string resName, string resourceHolder)
|
|
|
|
- {
|
|
|
|
- Assembly thisAssembly = Assembly.GetAssembly(assemblyType);
|
|
|
|
- ResourceManager rm = new ResourceManager(resourceHolder, thisAssembly);
|
|
|
|
- return rm.GetString(resName);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取程序集嵌入资源的文本形式
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="assemblyType">程序集中的某一对象类型</param>
|
|
|
|
- /// <param name="charset">字符集编码</param>
|
|
|
|
- /// <param name="resName">嵌入资源相对路径</param>
|
|
|
|
- /// <returns>如没找到该资源则返回空字符</returns>
|
|
|
|
- public static string GetManifestString(this Type assemblyType, string charset, string resName)
|
|
|
|
- {
|
|
|
|
- Assembly asm = Assembly.GetAssembly(assemblyType);
|
|
|
|
- Stream st = asm.GetManifestResourceStream(string.Concat(assemblyType.Namespace, ".", resName.Replace("/", ".")));
|
|
|
|
- if (st == null)
|
|
|
|
- {
|
|
|
|
- return "";
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- int iLen = (int)st.Length;
|
|
|
|
- byte[] bytes = new byte[iLen];
|
|
|
|
- st.Read(bytes, 0, iLen);
|
|
|
|
- return Encoding.GetEncoding(charset).GetString(bytes);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- #endregion 资源获取
|
|
|
|
-
|
|
|
|
- #region 创建实例
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取默认实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="type">类型</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static object GetInstance(this Type type)
|
|
|
|
- {
|
|
|
|
- return GetInstance<TypeToIgnore, object>(type, null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取默认实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="type">类型</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<T>(this Type type) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return GetInstance<TypeToIgnore, T>(type, null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取默认实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="type">类型</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<T>(string type) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return GetInstance<TypeToIgnore, T>(Type.GetType(type), null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取默认实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <param name="type">类型</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static object GetInstance(string type)
|
|
|
|
- {
|
|
|
|
- return GetInstance<TypeToIgnore, object>(Type.GetType(type), null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取一个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg, T>(this Type type, TArg argument) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return GetInstance<TArg, TypeToIgnore, T>(type, argument, null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取一个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg, T>(string type, TArg argument) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return GetInstance<TArg, TypeToIgnore, T>(Type.GetType(type), argument, null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取2个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument1">参数值</param>
|
|
|
|
- /// <param name="argument2">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg1, TArg2, T>(this Type type, TArg1 argument1, TArg2 argument2) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return GetInstance<TArg1, TArg2, TypeToIgnore, T>(type, argument1, argument2, null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取2个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument1">参数值</param>
|
|
|
|
- /// <param name="argument2">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg1, TArg2, T>(string type, TArg1 argument1, TArg2 argument2) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return GetInstance<TArg1, TArg2, TypeToIgnore, T>(Type.GetType(type), argument1, argument2, null);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取3个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg3">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument1">参数值</param>
|
|
|
|
- /// <param name="argument2">参数值</param>
|
|
|
|
- /// <param name="argument3">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg1, TArg2, TArg3, T>(this Type type, TArg1 argument1, TArg2 argument2, TArg3 argument3) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return InstanceCreationFactory<TArg1, TArg2, TArg3, T>.CreateInstanceOf(type, argument1, argument2, argument3);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- /// <summary>
|
|
|
|
- /// 获取3个构造参数的实例
|
|
|
|
- /// </summary>
|
|
|
|
- /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="TArg3">参数类型</typeparam>
|
|
|
|
- /// <typeparam name="T"></typeparam>
|
|
|
|
- /// <param name="type">实例类型</param>
|
|
|
|
- /// <param name="argument1">参数值</param>
|
|
|
|
- /// <param name="argument2">参数值</param>
|
|
|
|
- /// <param name="argument3">参数值</param>
|
|
|
|
- /// <returns></returns>
|
|
|
|
- public static T GetInstance<TArg1, TArg2, TArg3, T>(string type, TArg1 argument1, TArg2 argument2, TArg3 argument3) where T : class, new()
|
|
|
|
- {
|
|
|
|
- return InstanceCreationFactory<TArg1, TArg2, TArg3, T>.CreateInstanceOf(Type.GetType(type), argument1, argument2, argument3);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- private class TypeToIgnore
|
|
|
|
- {
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- private static class InstanceCreationFactory<TArg1, TArg2, TArg3, TObject> where TObject : class, new()
|
|
|
|
- {
|
|
|
|
- private static readonly Dictionary<Type, Func<TArg1, TArg2, TArg3, TObject>> InstanceCreationMethods = new Dictionary<Type, Func<TArg1, TArg2, TArg3, TObject>>();
|
|
|
|
-
|
|
|
|
- public static TObject CreateInstanceOf(Type type, TArg1 arg1, TArg2 arg2, TArg3 arg3)
|
|
|
|
- {
|
|
|
|
- CacheInstanceCreationMethodIfRequired(type);
|
|
|
|
-
|
|
|
|
- return InstanceCreationMethods[type](arg1, arg2, arg3);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- private static void CacheInstanceCreationMethodIfRequired(Type type)
|
|
|
|
- {
|
|
|
|
- if (InstanceCreationMethods.ContainsKey(type))
|
|
|
|
- {
|
|
|
|
- return;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- var argumentTypes = new[]
|
|
|
|
- {
|
|
|
|
- typeof(TArg1),
|
|
|
|
- typeof(TArg2),
|
|
|
|
- typeof(TArg3)
|
|
|
|
- };
|
|
|
|
-
|
|
|
|
- Type[] constructorArgumentTypes = argumentTypes.Where(t => t != typeof(TypeToIgnore)).ToArray();
|
|
|
|
- var constructor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public, null, CallingConventions.HasThis, constructorArgumentTypes, new ParameterModifier[0]);
|
|
|
|
-
|
|
|
|
- var lamdaParameterExpressions = new[]
|
|
|
|
- {
|
|
|
|
- Expression.Parameter(typeof(TArg1), "param1"),
|
|
|
|
- Expression.Parameter(typeof(TArg2), "param2"),
|
|
|
|
- Expression.Parameter(typeof(TArg3), "param3")
|
|
|
|
- };
|
|
|
|
-
|
|
|
|
- var constructorParameterExpressions = lamdaParameterExpressions.Take(constructorArgumentTypes.Length).ToArray();
|
|
|
|
- var constructorCallExpression = Expression.New(constructor, constructorParameterExpressions);
|
|
|
|
- var constructorCallingLambda = Expression.Lambda<Func<TArg1, TArg2, TArg3, TObject>>(constructorCallExpression, lamdaParameterExpressions).Compile();
|
|
|
|
- InstanceCreationMethods[type] = constructorCallingLambda;
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- #endregion 创建实例
|
|
|
|
- }
|
|
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 反射操作辅助类,如获取或设置字段、属性的值等反射信息。
|
|
|
|
+ /// </summary>
|
|
|
|
+ public static class ReflectionUtil
|
|
|
|
+ {
|
|
|
|
+ #region 属性字段设置
|
|
|
|
+
|
|
|
|
+ public static BindingFlags bf = BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static;
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 执行方法
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="methodName">方法名,区分大小写</param>
|
|
|
|
+ /// <param name="args">方法参数</param>
|
|
|
|
+ /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static T InvokeMethod<T>(this object obj, string methodName, object[] args)
|
|
|
|
+ {
|
|
|
|
+ return (T)obj.GetType().GetMethod(methodName, args.Select(o => o.GetType()).ToArray()).Invoke(obj, args);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 执行方法
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="methodName">方法名,区分大小写</param>
|
|
|
|
+ /// <param name="args">方法参数</param>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static void InvokeMethod(this object obj, string methodName, object[] args)
|
|
|
|
+ {
|
|
|
|
+ var type = obj.GetType();
|
|
|
|
+ type.GetMethod(methodName, args.Select(o => o.GetType()).ToArray()).Invoke(obj, args);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 设置字段
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">字段名</param>
|
|
|
|
+ /// <param name="value">值</param>
|
|
|
|
+ public static void SetField<T>(this T obj, string name, object value) where T : class
|
|
|
|
+ {
|
|
|
|
+ SetProperty(obj, name, value);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取字段
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">字段名</param>
|
|
|
|
+ /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static T GetField<T>(this object obj, string name)
|
|
|
|
+ {
|
|
|
|
+ return GetProperty<T>(obj, name);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取字段
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">字段名</param>
|
|
|
|
+ /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static object GetField(this object obj, string name)
|
|
|
|
+ {
|
|
|
|
+ return GetProperty(obj, name);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取所有的字段信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <returns>字段信息</returns>
|
|
|
|
+ public static FieldInfo[] GetFields(this object obj)
|
|
|
|
+ {
|
|
|
|
+ FieldInfo[] fieldInfos = obj.GetType().GetFields(bf);
|
|
|
|
+ return fieldInfos;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 设置属性
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">属性名</param>
|
|
|
|
+ /// <param name="value">值</param>
|
|
|
|
+ public static string SetProperty<T>(this T obj, string name, object value) where T : class
|
|
|
|
+ {
|
|
|
|
+ var parameter = Expression.Parameter(typeof(T), "e");
|
|
|
|
+ var property = Expression.PropertyOrField(parameter, name);
|
|
|
|
+ var before = Expression.Lambda(property, parameter).Compile().DynamicInvoke(obj);
|
|
|
|
+ if (value == before)
|
|
|
|
+ {
|
|
|
|
+ return value?.ToString();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (property.Type.IsGenericType && property.Type.GetGenericTypeDefinition() == typeof(Nullable<>))
|
|
|
|
+ {
|
|
|
|
+ typeof(T).GetProperty(name)?.SetValue(obj, value);
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ {
|
|
|
|
+ var valueExpression = Expression.Parameter(property.Type, "v");
|
|
|
|
+ var assign = Expression.Assign(property, valueExpression);
|
|
|
|
+ Expression.Lambda(assign, parameter, valueExpression).Compile().DynamicInvoke(obj, value);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return before.ToJsonString();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static readonly ConcurrentDictionary<string, Delegate> DelegateCache = new();
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取属性
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">属性名</param>
|
|
|
|
+ /// <typeparam name="T">约束返回的T必须是引用类型</typeparam>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static T GetProperty<T>(this object obj, string name)
|
|
|
|
+ {
|
|
|
|
+ return (T)GetProperty(obj, name);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取属性
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <param name="name">属性名</param>
|
|
|
|
+ /// <returns>T类型</returns>
|
|
|
|
+ public static object GetProperty(this object obj, string name)
|
|
|
|
+ {
|
|
|
|
+ var type = obj.GetType();
|
|
|
|
+ if (DelegateCache.TryGetValue(type.Name + "." + name, out var func))
|
|
|
|
+ {
|
|
|
|
+ return func.DynamicInvoke(obj);
|
|
|
|
+ }
|
|
|
|
+ var parameter = Expression.Parameter(type, "e");
|
|
|
|
+ var property = Expression.PropertyOrField(parameter, name);
|
|
|
|
+ func = Expression.Lambda(property, parameter).Compile();
|
|
|
|
+ DelegateCache.TryAdd(type.Name + "." + name, func);
|
|
|
|
+ return func.DynamicInvoke(obj);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取所有的属性信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="obj">反射对象</param>
|
|
|
|
+ /// <returns>属性信息</returns>
|
|
|
|
+ public static PropertyInfo[] GetProperties(this object obj)
|
|
|
|
+ {
|
|
|
|
+ return obj.GetType().GetProperties(bf);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ #endregion 属性字段设置
|
|
|
|
+
|
|
|
|
+ #region 获取Description
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取枚举值的Description信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name ="value">枚举值</param>
|
|
|
|
+ /// <param name ="args">要格式化的对象</param>
|
|
|
|
+ /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
+ public static string GetDescription(this Enum value, params object[] args)
|
|
|
|
+ {
|
|
|
|
+ if (value == null)
|
|
|
|
+ {
|
|
|
|
+ throw new ArgumentNullException(nameof(value));
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ var type = value.GetType();
|
|
|
|
+ if (!Enum.IsDefined(type, value))
|
|
|
|
+ {
|
|
|
|
+ return value.ToString();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ FieldInfo fi = type.GetField(value.ToString());
|
|
|
|
+ var attributes = (DescriptionAttribute[])fi.GetCustomAttributes(typeof(DescriptionAttribute), false);
|
|
|
|
+ var text = attributes.Length > 0 ? attributes[0].Description : value.ToString();
|
|
|
|
+ if (args is { Length: > 0 })
|
|
|
|
+ {
|
|
|
|
+ return string.Format(text, args);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return text;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取枚举值的Description信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name ="value">枚举值</param>
|
|
|
|
+ /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
+ public static EnumDescriptionAttribute GetEnumDescription(this Enum value)
|
|
|
|
+ {
|
|
|
|
+ return GetEnumDescriptions(value).FirstOrDefault();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取枚举值的Description信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name ="value">枚举值</param>
|
|
|
|
+ /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
+ public static NullableDictionary<string, (string Description, string Display)> GetTypedEnumDescriptions(this Enum value)
|
|
|
|
+ {
|
|
|
|
+ return GetEnumDescriptions(value).ToDictionarySafety(a => a.Language, a => (Description: a.Description, Display: a.Display));
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取枚举值的Description信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name ="value">枚举值</param>
|
|
|
|
+ /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
+ public static IEnumerable<EnumDescriptionAttribute> GetEnumDescriptions(this Enum value)
|
|
|
|
+ {
|
|
|
|
+ if (value == null)
|
|
|
|
+ {
|
|
|
|
+ throw new ArgumentNullException(nameof(value));
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ var type = value.GetType();
|
|
|
|
+ if (!Enum.IsDefined(type, value))
|
|
|
|
+ {
|
|
|
|
+ return new List<EnumDescriptionAttribute>();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ FieldInfo fi = type.GetField(value.ToString());
|
|
|
|
+ return fi.GetCustomAttributes(typeof(EnumDescriptionAttribute), false).OfType<EnumDescriptionAttribute>();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 根据成员信息获取Description信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="member">成员信息</param>
|
|
|
|
+ /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
+ public static string GetDescription(this MemberInfo member)
|
|
|
|
+ {
|
|
|
|
+ return GetDescription(member, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 根据成员信息获取Description信息
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="member">成员信息</param>
|
|
|
|
+ /// <param name="args">格式化占位对象</param>
|
|
|
|
+ /// <returns>如果未找到DescriptionAttribute则返回null或返回类型描述</returns>
|
|
|
|
+ public static string GetDescription(this MemberInfo member, params object[] args)
|
|
|
|
+ {
|
|
|
|
+ if (member == null)
|
|
|
|
+ {
|
|
|
|
+ throw new ArgumentNullException(nameof(member));
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return member.IsDefined(typeof(DescriptionAttribute), false) ? member.GetAttribute<DescriptionAttribute>().Description : string.Empty;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ #endregion 获取Description
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取对象的Attribute
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetAttribute<T>(this ICustomAttributeProvider provider) where T : Attribute
|
|
|
|
+ {
|
|
|
|
+ var attributes = provider.GetCustomAttributes(typeof(T), true);
|
|
|
|
+ return attributes.Length > 0 ? attributes[0] as T : null;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取对象的Attributes
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static IEnumerable<T> GetAttributes<T>(this ICustomAttributeProvider provider) where T : Attribute
|
|
|
|
+ {
|
|
|
|
+ return provider.GetCustomAttributes(typeof(T), true).OfType<T>();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ #region 资源获取
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 根据资源名称获取图片资源流
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="_"></param>
|
|
|
|
+ /// <param name="resourceName">资源的名称</param>
|
|
|
|
+ /// <returns>数据流</returns>
|
|
|
|
+ public static Stream GetImageResource(this Assembly _, string resourceName)
|
|
|
|
+ {
|
|
|
|
+ Assembly asm = Assembly.GetExecutingAssembly();
|
|
|
|
+ return asm.GetManifestResourceStream(resourceName);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取程序集资源的文本资源
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="assemblyType">程序集中的某一对象类型</param>
|
|
|
|
+ /// <param name="resName">资源项名称</param>
|
|
|
|
+ /// <param name="resourceHolder">资源的根名称。例如,名为“MyResource.en-US.resources”的资源文件的根名称为“MyResource”。</param>
|
|
|
|
+ public static string GetStringRes(this Type assemblyType, string resName, string resourceHolder)
|
|
|
|
+ {
|
|
|
|
+ Assembly thisAssembly = Assembly.GetAssembly(assemblyType);
|
|
|
|
+ ResourceManager rm = new ResourceManager(resourceHolder, thisAssembly);
|
|
|
|
+ return rm.GetString(resName);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取程序集嵌入资源的文本形式
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="assemblyType">程序集中的某一对象类型</param>
|
|
|
|
+ /// <param name="charset">字符集编码</param>
|
|
|
|
+ /// <param name="resName">嵌入资源相对路径</param>
|
|
|
|
+ /// <returns>如没找到该资源则返回空字符</returns>
|
|
|
|
+ public static string GetManifestString(this Type assemblyType, string charset, string resName)
|
|
|
|
+ {
|
|
|
|
+ Assembly asm = Assembly.GetAssembly(assemblyType);
|
|
|
|
+ Stream st = asm.GetManifestResourceStream(string.Concat(assemblyType.Namespace, ".", resName.Replace("/", ".")));
|
|
|
|
+ if (st == null)
|
|
|
|
+ {
|
|
|
|
+ return "";
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ int iLen = (int)st.Length;
|
|
|
|
+ byte[] bytes = new byte[iLen];
|
|
|
|
+ st.Read(bytes, 0, iLen);
|
|
|
|
+ return Encoding.GetEncoding(charset).GetString(bytes);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ #endregion 资源获取
|
|
|
|
+
|
|
|
|
+ #region 创建实例
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取默认实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="type">类型</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static object GetInstance(this Type type)
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TypeToIgnore, object>(type, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取默认实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="type">类型</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<T>(this Type type) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TypeToIgnore, T>(type, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取默认实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="type">类型</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<T>(string type) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TypeToIgnore, T>(Type.GetType(type), null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取默认实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <param name="type">类型</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static object GetInstance(string type)
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TypeToIgnore, object>(Type.GetType(type), null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取一个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg, T>(this Type type, TArg argument) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TArg, TypeToIgnore, T>(type, argument, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取一个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg, T>(string type, TArg argument) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TArg, TypeToIgnore, T>(Type.GetType(type), argument, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取2个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument1">参数值</param>
|
|
|
|
+ /// <param name="argument2">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg1, TArg2, T>(this Type type, TArg1 argument1, TArg2 argument2) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TArg1, TArg2, TypeToIgnore, T>(type, argument1, argument2, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取2个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument1">参数值</param>
|
|
|
|
+ /// <param name="argument2">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg1, TArg2, T>(string type, TArg1 argument1, TArg2 argument2) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return GetInstance<TArg1, TArg2, TypeToIgnore, T>(Type.GetType(type), argument1, argument2, null);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取3个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg3">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument1">参数值</param>
|
|
|
|
+ /// <param name="argument2">参数值</param>
|
|
|
|
+ /// <param name="argument3">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg1, TArg2, TArg3, T>(this Type type, TArg1 argument1, TArg2 argument2, TArg3 argument3) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return InstanceCreationFactory<TArg1, TArg2, TArg3, T>.CreateInstanceOf(type, argument1, argument2, argument3);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /// <summary>
|
|
|
|
+ /// 获取3个构造参数的实例
|
|
|
|
+ /// </summary>
|
|
|
|
+ /// <typeparam name="TArg1">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg2">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="TArg3">参数类型</typeparam>
|
|
|
|
+ /// <typeparam name="T"></typeparam>
|
|
|
|
+ /// <param name="type">实例类型</param>
|
|
|
|
+ /// <param name="argument1">参数值</param>
|
|
|
|
+ /// <param name="argument2">参数值</param>
|
|
|
|
+ /// <param name="argument3">参数值</param>
|
|
|
|
+ /// <returns></returns>
|
|
|
|
+ public static T GetInstance<TArg1, TArg2, TArg3, T>(string type, TArg1 argument1, TArg2 argument2, TArg3 argument3) where T : class, new()
|
|
|
|
+ {
|
|
|
|
+ return InstanceCreationFactory<TArg1, TArg2, TArg3, T>.CreateInstanceOf(Type.GetType(type), argument1, argument2, argument3);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private class TypeToIgnore
|
|
|
|
+ {
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static class InstanceCreationFactory<TArg1, TArg2, TArg3, TObject> where TObject : class, new()
|
|
|
|
+ {
|
|
|
|
+ private static readonly Dictionary<Type, Func<TArg1, TArg2, TArg3, TObject>> InstanceCreationMethods = new Dictionary<Type, Func<TArg1, TArg2, TArg3, TObject>>();
|
|
|
|
+
|
|
|
|
+ public static TObject CreateInstanceOf(Type type, TArg1 arg1, TArg2 arg2, TArg3 arg3)
|
|
|
|
+ {
|
|
|
|
+ CacheInstanceCreationMethodIfRequired(type);
|
|
|
|
+
|
|
|
|
+ return InstanceCreationMethods[type](arg1, arg2, arg3);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ private static void CacheInstanceCreationMethodIfRequired(Type type)
|
|
|
|
+ {
|
|
|
|
+ if (InstanceCreationMethods.ContainsKey(type))
|
|
|
|
+ {
|
|
|
|
+ return;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ var argumentTypes = new[]
|
|
|
|
+ {
|
|
|
|
+ typeof(TArg1),
|
|
|
|
+ typeof(TArg2),
|
|
|
|
+ typeof(TArg3)
|
|
|
|
+ };
|
|
|
|
+
|
|
|
|
+ Type[] constructorArgumentTypes = argumentTypes.Where(t => t != typeof(TypeToIgnore)).ToArray();
|
|
|
|
+ var constructor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public, null, CallingConventions.HasThis, constructorArgumentTypes, new ParameterModifier[0]);
|
|
|
|
+
|
|
|
|
+ var lamdaParameterExpressions = new[]
|
|
|
|
+ {
|
|
|
|
+ Expression.Parameter(typeof(TArg1), "param1"),
|
|
|
|
+ Expression.Parameter(typeof(TArg2), "param2"),
|
|
|
|
+ Expression.Parameter(typeof(TArg3), "param3")
|
|
|
|
+ };
|
|
|
|
+
|
|
|
|
+ var constructorParameterExpressions = lamdaParameterExpressions.Take(constructorArgumentTypes.Length).ToArray();
|
|
|
|
+ var constructorCallExpression = Expression.New(constructor, constructorParameterExpressions);
|
|
|
|
+ var constructorCallingLambda = Expression.Lambda<Func<TArg1, TArg2, TArg3, TObject>>(constructorCallExpression, lamdaParameterExpressions).Compile();
|
|
|
|
+ InstanceCreationMethods[type] = constructorCallingLambda;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ #endregion 创建实例
|
|
|
|
+ }
|
|
}
|
|
}
|