public static string UploadFile(string Url, string path)
{
// 设置参数
try
{
HttpWebRequest request = WebRequest.Create(Url) as HttpWebRequest;
CookieContainer cookieContainer = new CookieContainer();
request.CookieContainer = cookieContainer;
request.AllowAutoRedirect = true;
request.Method = "POST";
string boundary = DateTime.Now.Ticks.ToString("X"); // 随机分隔线
request.ContentType = "multipart/form-data;charset=utf-8;boundary=" + boundary;
byte[] itemBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "\r\n");
byte[] endBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");
int pos = path.LastIndexOf("\\");
string fileName = path.Substring(pos + 1);
//请求头部信息
StringBuilder sbHeader = new StringBuilder(string.Format("Content-Disposition:form-data;name=\"file\";filename=\"{0}\"\r\nContent-Type:application/octet-stream\r\n\r\n", fileName));
byte[] postHeaderBytes = Encoding.UTF8.GetBytes(sbHeader.ToString());
FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read);
byte[] bArr = new byte[fs.Length];
fs.Read(bArr, 0, bArr.Length);
fs.Close();
Stream postStream = request.GetRequestStream();
postStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
postStream.Write(postHeaderBytes, 0, postHeaderBytes.Length);
postStream.Write(bArr, 0, bArr.Length);
postStream.Write(endBoundaryBytes, 0, endBoundaryBytes.Length);
postStream.Close();
//发送请求并获取相应回应数据
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
Stream instream = response.GetResponseStream();
StreamReader sr = new StreamReader(instream, Encoding.UTF8);
//返回结果网页（html）代码
string content = sr.ReadToEnd();
Log.Info("upload ret: " + content);
return(content);
}
catch (Exception e)
{
OfflineProcessor.AddEvent("fileupload", Url, path, DateTime.Now.ToString("yyyyMMddHHmmss"));
Log.Error(e.Message);
return("");
}
}
public static string doPost(string action, string data)
{
string data0 = "action=" + action + "&classid=" + Global.getClassID() + "&courseid=" + Global.getCourseID() + "&teacherid=" + Global.getTeacherID();
if (data.IndexOf("lesson.get") < 0)
{
data0 += "&lessonid=" + Global.getLessonID();
}
if (data.IndexOf("schoolid=") < 0)
{
data0 += "&schoolid=" + Global.getSchoolID();
}
data = data0 + "&" + data;
string tm = DateTime.Now.ToString("yyyyMMddHHmmss");
string src = tm + "_" + Global.getSchoolID() + "_" + Global.getClassID() + "_" + KEY;
string sign = GetMD5(src);
string url = Global.url_assistant + "s=" + Global.getSchoolID() + "&r=0&classid=" + Global.getClassID() + "&t=" + tm + "&c=" + sign;
string ret = "";
string keyTemp = sign.Substring(4, 16);
string dataEncrypt = AesEncrypt(data, keyTemp);//跟java的substring不一样
string retCrypt = HTTPReq.HttpPost(url, dataEncrypt);
ret = AesDecrypt(retCrypt, keyTemp);
if (ret.Length == 0)
{
OfflineProcessor.AddEvent(action, url, data, tm);
}
Log.Info("doPost: data=" + data);
Log.Debug("ret=" + ret);
if (data.IndexOf("lesson.get") > 0)
{
handleGetLessonResponse(ret);
}
else if (data.IndexOf("handon") > 0 && Global.getLessonID() == 0)
{
handleGetLessonResponse(ret);
}
if (ret == null)
{
ret = "";
}
return(ret);
}