using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;

namespace _1200gFtp
{
    public class netOptions
    {
        public static string HttpPost(string Url, string postDataStr)
        {
            WebRequest request = WebRequest.Create(Url);
            request.Method = "POST";
            request.ContentType = "application/json";
            byte[] buf = Encoding.UTF8.GetBytes(postDataStr);
            byte[] byteArray = System.Text.Encoding.Default.GetBytes(postDataStr);
            request.ContentLength = Encoding.UTF8.GetByteCount(postDataStr);
            request.GetRequestStream().Write(buf, 0, buf.Length);
            WebResponse response = request.GetResponse();
            Stream myResponseStream = response.GetResponseStream();
            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
            string retString = myStreamReader.ReadToEnd();
            myStreamReader.Close();
            myResponseStream.Close();
            return retString;
        }
        public static string HttpPost(string Url, string postDataStr, string Method)
        {
            WebRequest request = WebRequest.Create(Url);
            request.Method = Method;
            request.ContentType = "application/json";
            byte[] buf = Encoding.UTF8.GetBytes(postDataStr);
            byte[] byteArray = System.Text.Encoding.Default.GetBytes(postDataStr);
            request.ContentLength = Encoding.UTF8.GetByteCount(postDataStr);
            request.GetRequestStream().Write(buf, 0, buf.Length);
            WebResponse response = request.GetResponse();
            Stream myResponseStream = response.GetResponseStream();
            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
            string retString = myStreamReader.ReadToEnd();
            myStreamReader.Close();
            myResponseStream.Close();
            return retString;
        }

        public static string PostWebRequest(string Url, string postDataStr, string Method, Dictionary<string, string> headerDic)
        {
            string ret = string.Empty;
            try
            {
                WebRequest request = WebRequest.Create(Url);
                foreach (KeyValuePair<string, string> kvp in headerDic)
                    request.Headers[kvp.Key] = kvp.Value;
                request.Method = Method;
                request.ContentType = "application/json";
                byte[] buf = Encoding.UTF8.GetBytes(postDataStr);
                byte[] byteArray = System.Text.Encoding.Default.GetBytes(postDataStr);
                request.ContentLength = Encoding.UTF8.GetByteCount(postDataStr);
                request.GetRequestStream().Write(buf, 0, buf.Length);
                WebResponse response = request.GetResponse();
                Stream myResponseStream = response.GetResponseStream();
                StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
                string retString = myStreamReader.ReadToEnd();
                myStreamReader.Close();
                myResponseStream.Close();
                return retString;
            }
            catch (Exception ex)
            {

            }
            return ret;
        }



        /// <summary>  
        /// 获取url的返回值  
        /// </summary>  
        /// <param name="url"></param>  
        public static string GethttpInfo(string url)
        {
            string strBuff = "";
            Uri httpURL = new Uri(url);
            ///HttpWebRequest类继承于WebRequest，并没有自己的构造函数，需通过WebRequest的Creat方法 建立，并进行强制的类型转换   
            HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(httpURL);
            ///通过HttpWebRequest的GetResponse()方法建立HttpWebResponse,强制类型转换   
            HttpWebResponse httpResp = (HttpWebResponse)httpReq.GetResponse();
            ///GetResponseStream()方法获取HTTP响应的数据流,并尝试取得URL中所指定的网页内容   
            ///若成功取得网页的内容，则以System.IO.Stream形式返回，若失败则产生ProtoclViolationException错 误。在此正确的做法应将以下的代码放到一个try块中处理。这里简单处理   
            Stream respStream = httpResp.GetResponseStream();
            ///返回的内容是Stream形式的，所以可以利用StreamReader类获取GetResponseStream的内容，并以   
            //StreamReader类的Read方法依次读取网页源程序代码每一行的内容，直至行尾（读取的编码格式：UTF8）   
            StreamReader respStreamReader = new StreamReader(respStream, Encoding.UTF8);
            strBuff = respStreamReader.ReadToEnd();
            return strBuff;
        }


    }
}