HttpWebRequest和HttpWebResponse的應用

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建立使用類HttpHelper：

public class Httpparam    {        public string UserAgent { get; set; }        public string Accept { get; set; }        public string ContentType { get; set; }        public string Referer { get; set; }    }    public class HttpHelper    {        //下載源碼        public static string GetString(string url, Httpparam para, Encoding encoding)        {            var res = (HttpWebRequest)HttpWebRequest.Create(new Uri(url));            res.ContentType = para.ContentType;            res.Accept = para.Accept;            res.UserAgent = para.UserAgent;            res.Referer = para.Referer;            var stream = new StreamReader(res.GetResponse().GetResponseStream(), encoding);            var result=stream.ReadToEnd();            stream.Close();            stream.Dispose();            res.Abort();            return result;        }        //上傳資料        public static string PostData(string url, Httpparam para, Encoding encoding,string data)        {            var buf = encoding.GetBytes(data);            var res = (HttpWebRequest)HttpWebRequest.Create(new Uri(url));            res.Method = "post";            res.ContentType = para.ContentType;            res.Accept = para.Accept;            res.UserAgent = para.UserAgent;            res.Referer = para.Referer;            var reqstream = res.GetRequestStream();            reqstream.Write(buf, 0, buf.Length);            reqstream.Close();            reqstream.Dispose();            var stream = new StreamReader(res.GetResponse().GetResponseStream(), encoding);            var result = stream.ReadToEnd();            stream.Close();            stream.Dispose();            res.Abort();            return result;        }    }

 

HttpWebRequest和HttpWebResponse的應用