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[ASP.net教程]网络请求参数的处理,包含过滤,排序,拼接,加密


网络请求的参数过滤,排序,拼接,加密.也参考了alipay.

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ICE.Common{  public class WebCore  {    /// <summary>    /// 除去数组中的空值和签名参数并以字母a到z的顺序排序    /// </summary>    /// <param name="dicArrayPre">过滤前的参数组</param>    /// <returns>过滤后的参数组</returns>    public static Dictionary<string, string> FilterPara(SortedDictionary<string, string> dicArrayPre)    {      Dictionary<string, string> dicArray = new Dictionary<string, string>();      foreach (KeyValuePair<string, string> temp in dicArrayPre)      {        if (temp.Key.ToLower() != "sign" && temp.Key.ToLower() != "sign_type" && temp.Value != "" && temp.Value != null)        {          dicArray.Add(temp.Key, temp.Value);        }      }      return dicArray;    }    /// <summary>    /// 把数组所有元素,按照“参数=参数值”的模式用“&”字符拼接成字符串    /// </summary>    /// <param name="sArray">需要拼接的数组</param>    /// <returns>拼接完成以后的字符串</returns>    public static string CreateLinkString(Dictionary<string, string> dicArray)    {      StringBuilder prestr = new StringBuilder();      foreach (KeyValuePair<string, string> temp in dicArray)      {        prestr.Append(temp.Key + "=" + temp.Value + "&");      }      //去掉最後一個&字符      int nLen = prestr.Length;      prestr.Remove(nLen - 1, 1);      return prestr.ToString();    }    private static string BuildRequestMysign(Dictionary<string, string> sPara)    {      //把数组所有元素,按照“参数=参数值”的模式用“&”字符拼接成字符串      string prestr = CreateLinkString(sPara);      //把最终的字符串签名,获得签名结果      string mysign = "";      mysign = IceEncrypt.GetMD5(prestr);      return mysign;    }  }}