中国邮政包裹快递查询 中国邮政物流官网( 二 )


string dataSign = encrypt(requestData, appKey, "UTF-8");
param.Add("DataSign", HttpUtility.UrlEncode(dataSign, Encoding.UTF8));
param.Add("DataType", "2");
string result = sendPost(url, param);
return result;
}
///
/// Post方式提交数据,返回网页的源代码
///
/// 发送请求的 URL
/// 请求的参数集合
/// 远程资源的响应结果
private string sendPost(string url, Dictionary param)
{
string result = "";
StringBuilder postData = https://www.shwenmu.com/changshi/new StringBuilder();
if (param != null && param.Count > 0)
{
foreach (var p in param)
{
if (postData.Length > 0)
{
postData.Append("&");
}
postData.Append(p.Key);
postData.Append("=");
postData.Append(p.Value);
}
}
// return postData.ToString();
byte[] byteData = https://www.shwenmu.com/changshi/Encoding.GetEncoding("UTF-8").GetBytes(postData.ToString());
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.ContentType = "application/x-www-form-urlencoded";
request.Referer = url;
request.Accept = "*/*";
request.Timeout = 30 * 1000;
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)";
request.Method = "POST";
request.ContentLength = byteData.Length;
Stream stream = request.GetRequestStream();
stream.Write(byteData, 0, byteData.Length);
stream.Flush();
stream.Close();
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream backStream = response.GetResponseStream();
StreamReader sr = new StreamReader(backStream, Encoding.GetEncoding("UTF-8"));
result = sr.ReadToEnd();
sr.Close();
backStream.Close();
response.Close();
request.Abort();
}
catch (Exception ex)
{
result = ex.Message;
}
return result;
}
///
///电商Sign签名
///
///内容
///Appkey
///URL编码
///DataSign签名
private string encrypt(String content, String keyValue, String charset)
{
if (keyValue != null)
{
return base64(MD5(contentkeyValue, charset), charset);
}
return base64(MD5(content, charset), charset);
}
///
/// 字符串MD5加密
///
///要加密的字符串
///编码方式
///密文
private string MD5(string str, string charset)
{
byte[] buffer = System.Text.Encoding.GetEncoding(charset).GetBytes(str);
try
{
System.Security.Cryptography.MD5CryptoServiceProvider check;
check = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] somme = check.ComputeHash(buffer);
string ret = "";
foreach (byte a in somme)
{
if (a < 16)
ret= "0"a.ToString("X");
else
ret= a.ToString("X");
}
return ret.ToLower();
}
catch
{
throw;
}
}
///
/// base64编码
///
/// 内容
/// 编码方式
///
private string base64(String str, String charset)
{
return Convert.ToBase64String(System.Text.Encoding.GetEncoding(charset).GetBytes(str));
}
附上详细的接口文档给大家:
【中国邮政包裹快递查询 中国邮政物流官网】http://www.kdniao.com/documents

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