/// <summary>
/// multipart/form-data类型post数据
/// </summary>
public static WebResponse UploadFile(string url, UploadedFile uploadedFile, Dictionary <string, string> dicPostData = null, Action <HttpWebRequest> SetHeaderAction = null)
{
HttpWebRequest wr = WebRequest.Create(url) as HttpWebRequest;
#region 请求头信息基本设置
//分界符字符串 拼在请求头中 multipart/form-data; boundary=boundary_string
var boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
wr.ContentType = "multipart/form-data; boundary=" + boundary;
wr.Method = "POST";
wr.KeepAlive = true;
wr.Credentials = System.Net.CredentialCache.DefaultCredentials;
wr.AllowAutoRedirect = false;
#endregion
#region 外部设置请求头
if (SetHeaderAction != null)
{
SetHeaderAction(wr);
}
#endregion
Stream rs = wr.GetRequestStream();
//首先输入分界符字节串
//提交的数据中分界符要加两个 '-'
byte[] boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary);
rs.Write(boundarybytes, 0, boundarybytes.Length);
#region 输入上传文件的内容
if (uploadedFile != null && uploadedFile.data.Length > 0)
{
var ContentDisposition =
Encoding.UTF8.GetBytes(string.Format("\r\nContent-Disposition: form-data; name=\"{0}\";filename=\"{1}\"\r\nContent-Type: {2}\r\n\r\n", uploadedFile.Name, uploadedFile.FileName, uploadedFile.ContentType));
rs.Write(ContentDisposition, 0, ContentDisposition.Length);
rs.Write(uploadedFile.data, 0, uploadedFile.data.Length);
}
#endregion
#region 写入表单普通数据内容
if (dicPostData != null && dicPostData.Count > 0)
{
foreach (var kv in dicPostData)
{
rs.Write(boundarybytes, 0, boundarybytes.Length);
var ContentDisposition = System.Text.Encoding.UTF8.GetBytes(string.Format("\r\nContent-Disposition: form-data; name=\"{0}\"\r\n\r\n", kv.Key));
rs.Write(ContentDisposition, 0, ContentDisposition.Length);
var Content = System.Text.Encoding.UTF8.GetBytes(kv.Value);
rs.Write(Content, 0, Content.Length);
}
}
#endregion
#region 输入内容尾，并关闭流
byte[] trailer = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "--\r\n");
rs.Write(trailer, 0, trailer.Length);
rs.Close();
#endregion
var webresponse = wr.GetResponse();
return(webresponse);
}
/// <summary>
/// multipart/form-data类型post数据
/// </summary>
public static WebResponse UploadFile(string url, UploadedFile uploadedFile, Dictionary<string, string> dicPostData = null, Action<HttpWebRequest> SetHeaderAction = null)
{
HttpWebRequest wr = WebRequest.Create(url) as HttpWebRequest;
#region 请求头信息基本设置
//分界符字符串 拼在请求头中 multipart/form-data; boundary=boundary_string
var boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
wr.ContentType = "multipart/form-data; boundary=" + boundary;
wr.Method = "POST";
wr.KeepAlive = true;
wr.Credentials = System.Net.CredentialCache.DefaultCredentials;
wr.AllowAutoRedirect = false;
#endregion
#region 外部设置请求头
if (SetHeaderAction != null)
SetHeaderAction(wr);
#endregion
Stream rs = wr.GetRequestStream();
//首先输入分界符字节串
//提交的数据中分界符要加两个 '-'
byte[] boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary);
rs.Write(boundarybytes, 0, boundarybytes.Length);
#region 输入上传文件的内容
if (uploadedFile != null && uploadedFile.data.Length > 0)
{
var ContentDisposition =
Encoding.UTF8.GetBytes(string.Format("\r\nContent-Disposition: form-data; name=\"{0}\";filename=\"{1}\"\r\nContent-Type: {2}\r\n\r\n", uploadedFile.Name, uploadedFile.FileName, uploadedFile.ContentType));
rs.Write(ContentDisposition, 0, ContentDisposition.Length);
rs.Write(uploadedFile.data, 0, uploadedFile.data.Length);
}
#endregion
#region 写入表单普通数据内容
if (dicPostData != null && dicPostData.Count > 0)
{
foreach (var kv in dicPostData)
{
rs.Write(boundarybytes, 0, boundarybytes.Length);
var ContentDisposition = System.Text.Encoding.UTF8.GetBytes(string.Format("\r\nContent-Disposition: form-data; name=\"{0}\"\r\n\r\n", kv.Key));
rs.Write(ContentDisposition, 0, ContentDisposition.Length);
var Content = System.Text.Encoding.UTF8.GetBytes(kv.Value);
rs.Write(Content, 0, Content.Length);
}
}
#endregion
#region 输入内容尾，并关闭流
byte[] trailer = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "--\r\n");
rs.Write(trailer, 0, trailer.Length);
rs.Close();
#endregion
var webresponse = wr.GetResponse();
return webresponse;
}
