客戶端代碼：
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/// <summary>
/// 將本地文件上傳到指定的服務器(HttpWebRequest方法)
/// </summary>
/// <param name="address">文件上傳到的服務器</param>
/// <param name="fileNamePath">要上傳的本地文件（全路徑）</param>
/// <param name="saveName">文件上傳后的名稱</param>
/// <returns>服務器反饋信息</returns>
private
string
Upload_Request(
string
address,
string
fileNamePath,
string
saveName)
{
// 要上傳的文件
FileStream fs =
new
FileStream(fileNamePath, FileMode.Open, FileAccess.Read);
BinaryReader r =
new
BinaryReader(fs);
//時間戳
string
strBoundary =
"----------"
+ DateTime.Now.Ticks.ToString(
"x"
);
byte
[] boundaryBytes = Encoding.ASCII.GetBytes(
"\r\n--"
+ strBoundary +
"\r\n"
);
//請求頭部信息
StringBuilder sb =
new
StringBuilder();
sb.Append(
"--"
);
sb.Append(strBoundary);
sb.Append(
"\r\n"
);
sb.Append(
"Content-Disposition: form-data; name=\""
);
sb.Append(
"file"
);
sb.Append(
"\"; filename=\""
);
sb.Append(saveName);
sb.Append(
"\""
);
sb.Append(
"\r\n"
);
sb.Append(
"Content-Type: "
);
sb.Append(
"application/octet-stream"
);
sb.Append(
"\r\n"
);
sb.Append(
"\r\n"
);
string
strPostHeader = sb.ToString();
byte
[] postHeaderBytes = Encoding.UTF8.GetBytes(strPostHeader);
// 根據uri創建HttpWebRequest對象
HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(
new
Uri(address));
httpReq.Method =
"POST"
;
//對發送的數據不使用緩存【重要、關鍵】
httpReq.AllowWriteStreamBuffering =
false
;
//設置獲得響應的超時時間（300秒）
//httpReq.Timeout = 300000;
httpReq.ContentType =
"multipart/form-data; boundary="
+ strBoundary;
long
length = fs.Length + postHeaderBytes.Length + boundaryBytes.Length;
long
fileLength = fs.Length;
httpReq.ContentLength = length;
try
{
//每次上傳4k
int
bufferLength = 4096;
byte
[] buffer =
new
byte
[bufferLength];
//已上傳的字節數
long
offset = 0;
//開始上傳時間
DateTime startTime = DateTime.Now;
int
size = r.Read(buffer, 0, bufferLength);
Stream postStream = httpReq.GetRequestStream();
//發送請求頭部消息
postStream.Write(postHeaderBytes, 0, postHeaderBytes.Length);
while
(size > 0)
{
postStream.Write(buffer, 0, size);
offset += size;
TimeSpan span = DateTime.Now - startTime;
//1024*1024=1048576
size = r.Read(buffer, 0, bufferLength);
}
//添加尾部的時間戳
postStream.Write(boundaryBytes, 0, boundaryBytes.Length);
postStream.Close();
//獲取服務器端的響應
WebResponse webRespon = httpReq.GetResponse();
Stream s = webRespon.GetResponseStream();
StreamReader sr =
new
StreamReader(s);
//讀取服務器端返回的消息
string
serverMsg = sr.ReadLine();
s.Close();
sr.Close();
}
catch
(Exception ex)
{
}
finally
{
fs.Close();
r.Close();
}
return
""
;
}
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服務端：
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2
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HttpPostedFileBase file = Request.Files[0];
file.SaveAs(Server.MapPath(
"~/file/k.iso"
));
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客戶端調用：
Upload_Request("http://localhost:7115/test/index", "d:\\t.rar", "kk");