.net将实体转成url参数

public static class UrlHelper
    {
        public static string ObjectToQuery<T>(this T obj, bool isAddEmptyValue = true, string orderBy = null, string removeFiled = null /*移除那个字段*/, string fieldReplace = null /*格式old,name*/) where T : class
        {
            if (obj == null)
            {
                return "";
            }
            var properties = obj.GetType().GetProperties();
            var list = new List<string>();
            foreach (var item in properties)
            {
                if (removeFiled != null && item.Name == removeFiled)
                {
                    //移除不必要字段
                    continue;
                }
                var proValue = item.GetValue(obj, null);
                if ((proValue != null && !string.IsNullOrEmpty(proValue.ToString())) || isAddEmptyValue)
                {
                    var value = proValue != null ? proValue.ToString() : "";
                    value = value.Replace("+", "%20");
                    var filedName = item.Name;
                    //替换key名字，如xxx_Name替换为xxx[0].Name
                    if (!string.IsNullOrEmpty(fieldReplace))
                    {
                        var arry = fieldReplace.Split(‘$‘);
                        if (arry.Length > 1)
                        {
                            filedName = filedName.Replace(arry[0], arry[1]);
                        }
                    }
                    list.Add(filedName + "=" + value);
                }
            }
            if (orderBy != null)
            {
                switch (orderBy)
                {
                    case "asc":
                        {
                            list = list.OrderBy(m => m).ToList();
                            break;
                        }
                    default:
                        {
                            list = list.OrderByDescending(m => m).ToList(); break;
                        }
                }
            }
            return string.Join("&", list);
        }
    }