C#代码实现对HTTP POST参数进行排序

 private static string GetSortedParas(Dictionary<string, string> dic)
 {
     dic = dic.OrderBy(key => key.Key).ToDictionary(keyItem => keyItem.Key, valueItem => valueItem.Value);
     var sbPara = new StringBuilder();
     foreach (var para in dic.Where(para => !para.Value.IsNullOrWhiteSpace()))
     {
         sbPara.AppendFormat("{0}={1}&", para.Key, para.Value);
     }
     return sbPara.ToString().TrimEnd('&');
 }

C#代码实现对HTTP POST参数进行排序