private async static Task <Parameters> ConnctWithGet(String url)
{
try
{
using (HttpClient httpClient = new HttpClient())
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, new Uri(url));
Cookies.addCookie(ref request);
AddHeader(ref request, url);
HttpResponseMessage response = await httpClient.SendRequestAsync(request);
int return_code = (int)response.StatusCode;
int encodeingType = GetEncodingType(url);
Boolean isGbk = false;
if (encodeingType == -1)
{
String typeString = "";
response.Headers.TryGetValue("Content-type", out typeString);
if (typeString != null)
{
typeString = typeString.ToLower();
if (typeString.Contains("gbk") || typeString.Contains("gb2312"))
{
;
}
isGbk = true;
}
}//gbk有什么区别？以后在考虑吧
else if (encodeingType == 1)
{
isGbk = true;
}
Cookies.setCookie(response, url);
using (Stream responseStream = (await response.Content.ReadAsInputStreamAsync()).AsStreamForRead())
{
Parameters parameters = new Parameters(return_code + "", "");
if (return_code == 200)
{
StreamReader sReader;
if (!isGbk)
{
sReader = new StreamReader(responseStream);
}
else
{
EncodingProvider provider = CodePagesEncodingProvider.Instance;
Encoding.RegisterProvider(provider);
Encoding gb2312 = Encoding.GetEncoding("gb2312");
sReader = new StreamReader(responseStream, gb2312);
}
String str = "";
String line = sReader.ReadLine();
while (line != null)
{
str = str + line + "\n";
line = sReader.ReadLine();
}
parameters.value = str;
}
return(parameters);
}
}
}
catch (Exception e)
{
return(new Parameters("-1", ""));
}
}
/**
* 向服务器发送请求，并且接收到返回的数据
* @param url 请求地址
* @param params 请求参数；如果参数为空使用get请求，如果不为空使用post请求
* @return 一个 Parameters；name 存放 HTTP code（无法连接时为-1）；如果 code==200 那么 value
* 存放的是返回的网页内容
*/
public async static Task <Parameters> Connect(String url, List <Parameters> paramList)
{
if (paramList == null || paramList.Count == 0)
{
return(await ConnctWithGet(url));
}
try
{
HttpClient client = new HttpClient();
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, new Uri(url));
url = url.Trim();
Boolean useProxy = WhetherToUseProxy(url);
if (useProxy)
{
//以后加入
}
List <KeyValuePair <String, String> > t_params = new List <KeyValuePair <string, string> >();
if (paramList != null)
{
foreach (Parameters paramItem in paramList)
{
String str = paramItem.value;
if (str == null)
{
continue;
}
t_params.Add(paramItem.keyValue);
}
}
HttpFormUrlEncodedContent content = new HttpFormUrlEncodedContent(t_params);
Cookies.addCookie(ref request);
if (t_params.Count != 0)
{
request.Content = content;
}
AddHeader(ref request, url);
/*String soy;
* if(!request.Headers.TryGetValue("Content-Type",out soy))
* request.Headers.Add("Content-Type", "application/x-www-form-urlencoded");*/
HttpResponseMessage response = await client.SendRequestAsync(request);
int return_code = (int)response.StatusCode;
int encodingType = GetEncodingType(url);
Boolean isGbk = false;
if (encodingType == -1)
{
String typeString = "";
response.Headers.TryGetValue("Content-Type", out typeString);
if (typeString != null)
{
typeString = typeString.ToLower();
if (typeString.Contains("gbk") || typeString.Contains("gb2312"))
{
;
}
isGbk = true;
}
}//gbk有什么区别？以后在考虑吧
else if (encodingType == 1)
{
isGbk = true;
}
Cookies.setCookie(response, url);
using (Stream responseStream = (await response.Content.ReadAsInputStreamAsync()).AsStreamForRead())
{
Parameters parameters = new Parameters(return_code + "", "");
if (return_code == 200)
{
StreamReader sReader;
if (!isGbk)
{
sReader = new StreamReader(responseStream);
}
else
{
EncodingProvider provider = CodePagesEncodingProvider.Instance;
Encoding.RegisterProvider(provider);
Encoding gb2312 = Encoding.GetEncoding("gb2312");
sReader = new StreamReader(responseStream, gb2312);
}
String str = "";
String line = sReader.ReadLine();
while (line != null)
{
str = str + line + "\n";
line = sReader.ReadLine();
}
str = str.Trim();
parameters.value = str;
}
return(parameters);
}
}
catch
{
return(new Parameters("-1", ""));
}
}