///<summary>/// 通过WebClient类Post数据到远程地址，需要Basic认证；
/// 调用端自己处理异常
///</summary>///<param name="uri"></param>///<param name="paramStr">name=张三&age=20</param>///<param name="encoding">请先确认目标网页的编码方式</param>///<param name="username"></param>///<param name="password"></param>///<returns></returns>publicstaticstring Request_WebClient(string uri, string paramStr, Encoding encoding, string username, string password)
{
if (encoding == null)
encoding = Encoding.UTF8;
string result = string.Empty;
WebClient wc = new WebClient();
// 采取POST方式必须加的Header
wc.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
byte[] postData = encoding.GetBytes(paramStr);
if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password))
{
wc.Credentials = GetCredentialCache(uri, username, password);
wc.Headers.Add("Authorization", GetAuthorization(username, password));
}
byte[] responseData = wc.UploadData(uri, "POST", postData); // 得到返回字符流return encoding.GetString(responseData);// 解码
}
//get方法
publicstaticstring GetHttp(string url, HttpContext httpContext)
{
string queryString = "?";
foreach (string key in httpContext.Request.QueryString.AllKeys)
{
queryString += key + "=" + httpContext.Request.QueryString[key] + "&";
}
queryString = queryString.Substring(, queryString.Length - );
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(url + queryString);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "GET";
httpWebRequest.Timeout = ;
//byte[] btBodys = Encoding.UTF8.GetBytes(body);
//httpWebRequest.ContentLength = btBodys.Length;
//httpWebRequest.GetRequestStream().Write(btBodys, 0, btBodys.Length);
HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream());
string responseContent = streamReader.ReadToEnd();
httpWebResponse.Close();
streamReader.Close();
return responseContent;
}
///<summary>/// 通过 WebRequest/WebResponse 类访问远程地址并返回结果，需要Basic认证；
/// 调用端自己处理异常
///</summary>///<param name="uri"></param>///<param name="timeout">访问超时时间，单位毫秒；如果不设置超时时间，传入0</param>///<param name="encoding">如果不知道具体的编码，传入null</param>///<param name="username"></param>///<param name="password"></param>///<returns></returns>publicstaticstring Request_WebRequest(string uri, int timeout, Encoding encoding, string username, string password)
{
string result = string.Empty;
WebRequest request = WebRequest.Create(new Uri(uri));
if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password))
{
request.Credentials = GetCredentialCache(uri, username, password);
request.Headers.Add("Authorization", GetAuthorization(username, password));
}
if (timeout > )
request.Timeout = timeout;
WebResponse response = request.GetResponse();
Stream stream = response.GetResponseStream();
StreamReader sr = encoding == null ? new StreamReader(stream) : new StreamReader(stream, encoding);
result = sr.ReadToEnd();
sr.Close();
stream.Close();
return result;
}
#region # 生成 Http Basic 访问凭证 #
privatestatic CredentialCache GetCredentialCache(string uri, string username, string password)
{
string authorization = string.Format("{0}:{1}", username, password);
CredentialCache credCache = new CredentialCache();
credCache.Add(new Uri(uri), "Basic", new NetworkCredential(username, password));
return credCache;
}
privatestaticstring GetAuthorization(string username, string password)
{
string authorization = string.Format("{0}:{1}", username, password);
return"Basic " + Convert.ToBase64String(new ASCIIEncoding().GetBytes(authorization));
}
#endregion