private void btUpload_Click(object sender, EventArgs e)
{
var mpfd = new MultiPartFormData();
var file = new FileStream(tbFile.Text, FileMode.Open);
byte[] bb = new byte[file.Length];
file.Read(bb, 0, (int)file.Length);
file.Close();
mpfd.AddStreamFile("upload", openFileDialog1.SafeFileName, bb);
mpfd.PrepareFormData();
HttpWebRequest request = HttpUtil.SendPost("http://192.168.1.121/terminal/uploadImage.do?LOGIN_KEY=UNVALID", mpfd);
string res = HttpUtil.GetResponse(request);
MessageBox.Show(res);
}
/// <summary>
/// 用于上传文件的HTTP请求：
/// 例子：
/// MultiPartFormData form = new MultiPartFormData();
/// form.AddFormField("devilField", "Oracle编程_沈飞");
/// FileStream file = new FileStream("D:\\精通Oracle10gPlSQL编程.pdf", FileMode.Open);
/// byte[] bb = new byte[file.Length];
/// file.Read(bb, 0, (int)file.Length);
/// file.Close();
/// form.AddStreamFile("fileUpload", "精通Oracle10gPlSQL编程.pdf", bb);
/// form.PrepareFormData();
/// HttpWebRequest request = sendPost(uri, form);
/// </summary>
/// <param name="uri">http请求的地址</param>
/// <param name="form">用于封装http请求的表单</param>
/// <returns></returns>
public static HttpWebRequest SendPost(string uri, MultiPartFormData form)
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(uri);
//req.Timeout = 3000;
req.Method = "POST";
req.ContentType = "multipart/form-data; boundary=" + form.Boundary;
//req.AllowWriteStreamBuffering = false; //不用缓存处理
//req.Timeout = 30000; //断线时间限定30秒
using (Stream reqStream = req.GetRequestStream())
{
foreach (var b in form.GetFormData())
{
reqStream.WriteByte(b);
}
reqStream.Close();
}
return req;
}
