我想知道服务器端应用程序如何通过POST接收文件,然后在服务器端打印其内容。
此处最“最新”的相关问题是:Dart how to upload image
但它不再起作用了(Uncaught Error:类型'String'不是'fileUploaded''HttpBodyFileUpload'类型的子类型。)
编辑:
这是我发送文件的方式(此方法工作正常):
import 'dart:html';
import 'dart:async';
HttpRequest request = new HttpRequest();
final _HOST = "127.0.0.1", _PORT = 8123;
Future sendFile(File file) {
var completer = new Completer(); // No need for a Completer. It will be removed.
Uri uri = new Uri(host: _HOST, port: _PORT);
request.open("POST", uri.toString());
var filename = file.name;
final FormData formData = new FormData();
formData.append('file', filename);
request.onLoadEnd.listen((_) {
completer.complete(request.response);
});
request.send(formData);
return completer.future;
}
服务器端(我被困在这里):
void _handlePost(HttpRequest req) {
HttpBodyHandler.processRequest(req).then((body) {
HttpBodyFileUpload fileUploaded = body.body['file'];
print(fileUploaded.content);
});
}
答案 0 :(得分:0)
您要将文件名而不是Blob(文件)附加到FormData
对象。在Dart中,看起来有一个特殊的函数用于附加名为appendBlob(name, blob, [filename])
的blob。