请教淘宝API sign签名问题,望高人指点!谢谢!

来源：互联网发布：2011年nba总决赛知乎编辑：程序博客网时间：2024/05/01 17:47

对淘宝API sign签名老计算不对

代码如下:

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Security.Cryptography;namespace WindowsFormsApplication1{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void Form1_Load(object sender, EventArgs e)        {            //正确的sign            //http://gw.api.taobao.com/router/rest?sign=70950D9D8BEC7BF55BA572902733F261×tamp=2014-05-28+00%3A04%3A02&v=2.0&app_key=21792839&method=taobao.time.get&partner_id=top-apitools&format=json            Dictionary<string, string> param = new Dictionary<string, string>();            param["app_key"] = "21792839";            param["format"] = "json";            param["method"] = "taobao.time.get";            param["partner_id"] = "top-apitools";            param["timestamp"] = "2014-05-28 00:04:02";            param["v"] = "2.0";            string secret = "c22cd49550a5fac8a775893a34a0391c";            string x = getMD5String(param, secret);            textBox1.Text = x;        }        public static String getMD5String(Dictionary<string, string> param, String str)        {            String gets = getBeforeSign(param, str);            Console.WriteLine(gets);            MD5 md5 = new MD5CryptoServiceProvider();            byte[] result = md5.ComputeHash((new UTF8Encoding()).GetBytes(gets));            //result = md5.ComputeHash(result);            return byteArrayToHexString(result);        }        private static String byteArrayToHexString(byte[] b)        {            StringBuilder resultSb = new StringBuilder();            string stmp;            for (int i = 0; i < b.Length; i++)            {                int md = (b[i] & 0XFF);                stmp = "" + md.ToString("X"); ;                if (stmp.Length == 1)                    resultSb.Append("0").Append(stmp);                else                    resultSb.Append(stmp);            }            return resultSb.ToString().ToUpper();        }        private static String getBeforeSign(Dictionary<String, String> param, String orgin)        {            String indexs = orgin;            if (param == null)                return null;            foreach (KeyValuePair<String, String> var in param)            {                String name = (String)var.Key.ToString();                orgin += name;                orgin += param[name];            }            orgin = orgin + indexs;            return orgin;        }    }}

运行结果:

848457EDB79276ACDC1B1E636CDC5757

正确结果:

70950D9D8BEC7BF55BA572902733F261

请问是什么问题?

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