94 lines
3.2 KiB
C#
94 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.Reflection;
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using System.Web;
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using System.ComponentModel;
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namespace MisDataFunDll
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{
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/// <summary>
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///
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/// </summary>
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public class Reflection
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{
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/// <summary>
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/// 通过反射调用动态连接库方法
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/// </summary>
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/// <param name="assembly">程序集(DLL)</param>
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/// <param name="Namespace">命名空间名称，如果无命名空间写“”</param>
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/// <param name="Classname">类名</param>
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/// <param name="Method">方法名</param>
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/// <param name="Paramsters">函数参数数组</param>
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static public string ReflectionMethod(Assembly assembly, string Namespace, string Classname, string Method, object[] Paramsters)
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{
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try
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{
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Type t;
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//类
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if (Namespace == "")
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{
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t = assembly.GetType(Classname);
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}
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else
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{
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t = assembly.GetType(Namespace + "." + Classname);
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}
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if (t == null)
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{
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return "类不存在";
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}
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////方法
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MethodInfo mi = t.GetMethod(Method); //获取方法
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if (mi == null)
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{
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return "方法不存在";
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}
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ParameterInfo[] paramsInfo = mi.GetParameters();
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for (int i = 0; i < paramsInfo.Length; i++)
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{
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Type tType = paramsInfo[i].ParameterType;
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//改变参数类型
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Paramsters[i]= SD_ChanageType(Paramsters[i],tType);
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}
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/// 建一个实例化的类
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object instanceObject = Activator.CreateInstance(t);
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mi.Invoke(instanceObject, Paramsters);
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return "ok";
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}
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catch(Exception err)
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{
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return err.ToString();
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="value"></param>
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/// <param name="convertsionType"></param>
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/// <returns></returns>
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public static object SD_ChanageType(object value, Type convertsionType)
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{
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//判断convertsionType类型是否为泛型，因为nullable是泛型类,
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if (convertsionType.IsGenericType &&
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//判断convertsionType是否为nullable泛型类
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convertsionType.GetGenericTypeDefinition().Equals(typeof(Nullable<>)))
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{
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if (value == null || value.ToString().Length == 0)
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{
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return null;
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}
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//如果convertsionType为nullable类，声明一个NullableConverter类，该类提供从Nullable类到基础基元类型的转换
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NullableConverter nullableConverter = new NullableConverter(convertsionType);
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//将convertsionType转换为nullable对的基础基元类型
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convertsionType = nullableConverter.UnderlyingType;
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}
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return Convert.ChangeType(value, convertsionType);
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}
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}
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} |