server/aspnetapp/Helper/ObjectHelper.cs

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using System;
using System.IO;
using System.Reflection;
using System.Runtime.Serialization.Formatters.Binary;

namespace aspnetapp.Helper
{
    public static class ObjectHelper
    {
        /// <summary>
        /// 比较两个对象的属性值和字段值是否全部相等
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="obj1"></param>
        /// <param name="obj2"></param>
        /// <param name="type"></param>
        /// <returns></returns>
        public static bool Compare<T>(T obj1, T obj2, Type type)
        {
            return CompareProperties(obj1, obj2, type) && CompareFields(obj1, obj2, type);
        }

        public static bool Compare(object obj1, object obj2)
        {
            //将对象序列化成内存中的二进制流  
            BinaryFormatter inputFormatter = new BinaryFormatter();
            MemoryStream inputStream;
            MemoryStream inputStream2;
            using (inputStream = new MemoryStream())
            {
                inputFormatter.Serialize(inputStream, obj1);
            }
            using (inputStream2 = new MemoryStream())
            {
                inputFormatter.Serialize(inputStream2, obj2);
            }
            string md5_1 = HashHelper.MD5Encrypt(inputStream.ToArray());
            string md5_2 = HashHelper.MD5Encrypt(inputStream2.ToArray());

            return (md5_1 == md5_2);
        }

        /// <summary>
        /// 判断两个相同引用类型的对象的属性值是否相等
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="obj1">对象1</param>
        /// <param name="obj2">对象2</param>
        /// <param name="type">按type类型中的属性进行比较</param>
        /// <returns></returns>
        public static bool CompareProperties<T>(T obj1, T obj2, Type type)
        {
            //为空判断
            if (obj1 == null && obj2 == null)
                return true;
            else if (obj1 == null || obj2 == null)
                return false;

            Type t = type;