获取签名字符串，将参数排序后拼接在一起，获得对象所有属性的值的拼接

获得对象所有属性的值的拼接

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/// <summary>         /// 获得对象所有属性的值的拼接         /// </summary>         /// <typeparam name="T"></typeparam>         /// <param name="t"></param>         /// <returns></returns>         public static Dictionary<string, string> GetPropertyValueString<T>(T t, List<string> signProperties)         {             Dictionary<string, string> values = new Dictionary<string, string>();             if (t == null)             {                 return null;             }             System.Reflection.PropertyInfo[] properties = t.GetType().GetProperties(System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public);               if (properties.Length <= 0)             {                 return null;             }             foreach (System.Reflection.PropertyInfo item in properties)             {                 string name = item.Name;                 if (signProperties != null && signProperties.Count > 0)                 {                     if (signProperties.Contains(name))                     {                         object value = item.GetValue(t, null);                         if (item.PropertyType.IsValueType || item.PropertyType.Name.StartsWith("String"))                         {                             values.Add(name, value == null ? "" : value.ToString());                         }                     }                 }                 else                 {                     object value = item.GetValue(t, null);                     if (item.PropertyType.IsValueType || item.PropertyType.Name.StartsWith("String"))                     {                         values.Add(name, value == null ? "" : value.ToString());                     }                 }                 //object value = item.GetValue(t, null);                 //if (item.PropertyType.IsValueType || item.PropertyType.Name.StartsWith("String"))                 //{                 //    //tStr += string.Format("{0}:{1},", name, value);                 //    values.Add(name, value == null ? "" : value.ToString());                 //}                 ////else                 ////{                 ////    GetPropertyValueString(value);//对象中嵌套的对象                 ////}             }               return values;         }

　　签名字符串

 public static string GetSignContent(IDictionary<string, string> parameters)
        {
            // 第一步：把字典按Key的字母顺序排序
            IDictionary<string, string> sortedParams = new SortedDictionary<string, string>(parameters);
            IEnumerator<KeyValuePair<string, string>> dem = sortedParams.GetEnumerator();

            // 第二步：把所有参数名和参数值串在一起
            StringBuilder query = new StringBuilder("");
            while (dem.MoveNext())
            {
                string key = dem.Current.Key;
                string value = dem.Current.Value;
                if (!string.IsNullOrEmpty(key) && !string.IsNullOrEmpty(value))
                {
                    query.Append(key).Append("=").Append(value).Append("&");
                }
            }
            string content = query.ToString().Substring(0, query.Length - 1);

            return content;
        }