我想使用C#和WebClient类在特定网站上传文件。我有这段代码:
Console.Write("\nPlease enter the URI to post data to : ");
String uriString = "http://www.noelshack.com/api.php";
// String uriString = "http://127.0.0.1/upload.php";
WebClient myWebClient = new WebClient();
string fileName = lst_path[0];
byte[] responseArray = myWebClient.UploadFile(uriString,"POST", fileName);
MessageBox.Show("\nretour:" + System.Text.Encoding.ASCII.GetString(responseArray));
但问题是,在网站上输入的文件名是“fichier”,webclient发送“file”作为名称。
我希望发送:
内容 - 处置:表单数据; NAME = “fichier”;文件名= “csharp.jpg” 代替 : 内容处理:表格数据; NAME = “文件”;文件名= “csharp.jpg”
我没有找到如何修改此文件,请帮助一下?
答案 0 :(得分:0)
如果您使用的是.NET 4.5+,则可以使用HttpClient
类进行异步发布:
async Task<string> UploadFileAsync(string[] lst_path)
{
string uriString = "http://www.noelshack.com/api.php";
string fileName = lst_path[0];
using (HttpClient client = new HttpClient())
using (FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read))
using (MultipartFormDataContent form = new MultipartFormDataContent())
using (StreamContent sc = new StreamContent(fs))
{
form.Add(sc, "fichier", fileName);
HttpResponseMessage response = await client.PostAsync(uriString, form);
response.EnsureSuccessStatusCode();
return await response.Content.ReadAsStringAsync();
}
}