示例#1
0
        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", ""));
            }
        }
示例#2
0
        /**
         * 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", ""));
            }
        }