利用HttpWebRequest模拟提交图片
最近在做排量post工具， 以前做的都是提交文字 这次需要post图片过去，弄了半天终于弄好了；
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/// <summary> /// Post发送图片数据 /// </summary> public
Queusresult requestData(string
uri, string
imgUrl, List<dataModes> ListMode, Encoding en, CookieContainer cook) { HttpWebRequest req = WebRequest.Create(uri) as
HttpWebRequest; req.Method = "POST"; req.ContentType = "application/octet-stream";<br> //一些不需要的请求头 如果去掉不影响久尽量去掉 // req.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; req.CookieContainer = cook; req.AllowAutoRedirect = true; <br> //可能post了其他参数需要跟图片拼接，我这里没有 所以注释了 //StringBuilder postData = new StringBuilder(""); //foreach (dataModes m in ListMode) //{ // postData.AppendFormat("{0}={1}&", m.keys, m.values); //} //postData.AppendFormat("{0}={1}", "1", "1"); //Byte[] writData = ASCIIEncoding.ASCII.GetBytes(postData.ToString()); //读取图片 FileStream oStream = new
FileStream(imgUrl, FileMode.Open, FileAccess.Read); BinaryReader oReader = new
BinaryReader(oStream); Byte[] imgData = oReader.ReadBytes(Convert.ToInt32(oStream.Length)); //byte[] data3 = new byte[writData.Length + imgData.Length]; //System.Array.Copy(writData, 0, data3, 0, writData.Length); //System.Array.Copy(imgData, 0, data3, writData.Length, imgData.Length); req.ContentLength = imgData.Length; Stream stream = req.GetRequestStream(); stream.Write(imgData, 0, imgData.Length); stream.Close(); HttpWebResponse response = req.GetResponse() as
HttpWebResponse; Stream str = response.GetResponseStream(); string
html = ""; using
(StreamReader strRead = new
StreamReader(str, en)) { req.CookieContainer.Add(response.Cookies); html = strRead.ReadToEnd(); } Queusresult q = new
Queusresult(); q.html = html; q.cookie = cook; return
q; |
测试成功，如果有不懂的可以加加群交流 .Net技术交流区 86594082
原文：http://www.cnblogs.com/sxmny/p/3533733.html