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
