淘宝API sign签名问题,高手请指点!多谢!

qwestw 2014-05-29 11:10:49

代码:

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;

        }



    }

}