static void Main(string[] args) { Dictionary<string, string> map = new Dictionary<string, string>(); map.Add("name1", "value1"); map.Add("name2", "value2"); //... StringBuilder poststr = new StringBuilder(); StringBuilder tosign = new StringBuilder(); foreach (var elem in map) { poststr.Append(elem.Key).Append("=") .Append(HttpUtility.UrlEncode(elem.Value, Encoding.UTF8)) .Append("&"); tosign.Append(elem.Key).Append(elem.Value); } tosign.Append("tiebaclient!!!"); poststr.Append("sign=").Append(MD5Encrypt(tosign.ToString(), Encoding.UTF8)); Console.WriteLine(poststr.ToString()); } static string MD5Encrypt(string text, Encoding enco) { byte[] input = enco.GetBytes(text); MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider(); byte[] output = md5.ComputeHash(input); StringBuilder sb = new StringBuilder(); foreach (byte x in output) sb.AppendFormat("{0:X2}", x); return sb.ToString(); }
1.提交内容所有的name-value值对 按照name的字典序升序排列(要是不知道就以抓包出来的顺序为准) 之后后面加上”tiebaclient!!!” 并去掉”&”这个字符
2.以UTF-8编码计算md5值 计算md5的时候应该输入一个byte[] 以UTF-8编码getbytes就好
3.在原始的提交内容(不带”tiebaclient”,但是带”&”)后面加上”&sign=” 然后在加上刚才的md5文本