C# POST提交

/// /// post 网址提交

///

/// 提交网站

/// 参数

/// 编码方式

///

public static string PostWebRequest(string postUrl, string paramData, Encoding dataEncode)

{

string ret = string.Empty;

try

{

byte[] byteArray = dataEncode.GetBytes(paramData); //转化

HttpWebRequest webReq = (HttpWebRequest)WebRequest.Create(new Uri(postUrl));

webReq.Method = "POST";

webReq.ContentType = "application/x-www-form-urlencoded";

webReq.ContentLength = byteArray.Length;

Stream newStream = webReq.GetRequestStream();

newStream.Write(byteArray, 0, byteArray.Length);//写入参数

newStream.Close();

HttpWebResponse response = (HttpWebResponse)webReq.GetResponse();

StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.Default);

ret = sr.ReadToEnd();

sr.Close();

response.Close();

newStream.Close();

}

catch (Exception ex)

{

ret = ex.Message;

}

return ret;

}

C# MD5 加密方法 16位或32位

public string md5(string str,int code)

{

if(code==16) //16位MD5加密(取32位加密的9~25字符)

{

return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str,"MD5").ToLower().Substring(8,16) ;

}

else//32位加密

{

return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str,"MD5").ToLower();

}

}