如何在扑的pubspec.yaml中添加摇摇欲坠的依赖项

Question

我是一位扑朔迷离的新开发人员，我想在我的应用程序中使用“ swagger”。我在pubspec.yaml中添加了swagger的依赖项，但是总是有错误。

pubspec.yaml：

dependencies:
  flutter:
    sdk: flutter
  cupertino_icons: ^0.1.2
  english_words: ^3.1.0
  swagger: ^1.0.0

当我单击Packages get时，这是以下输出：

Running "flutter packages get" in my_first_app...               
Because my_first_app depends on swagger ^1.0.0 which doesn't match any versions, version solving failed.

pub get failed (1)
Process finished with exit code 1

如何在Flutter应用程序中使用摇摇欲坠？

Answer 1

您可能应该改用

   switch (method){
        case "ping": {
            try{
                data = URLEncoder.encode("type", "UTF-8") + "=" + URLEncoder.encode("ping", "UTF-8");
                Log.e(TAG,"DATA: " + data);
            }catch (UnsupportedEncodingException e){
                Log.e(TAG, "UnsupportedEncodingException: " + e.toString());
            }
            try {
                URL url = new URL(link);
                HttpURLConnection h = (HttpURLConnection) url.openConnection();
                h.setDoInput(true);
                h.setDoOutput(true);
                OutputStreamWriter owriter =
                        new OutputStreamWriter(h.getOutputStream());
                owriter.write(data);
                owriter.flush();
                BufferedReader b = new BufferedReader
                        (new InputStreamReader(h.getInputStream(), "UTF-8"), 8);
                StringBuilder builder = new StringBuilder();
                String line;
                while ((line = b.readLine()) != null) {
                    builder.append(line);
                }
                return builder.toString();
            } catch (IOException e) {
                Log.e(TAG, "IOException: " + e.toString());
            }
        }
        break;
    case "updatecounter": {

open_api: ^2.0.1 已过时，并且与Dart 2不兼容，并且所请求的版本swagger根本不存在。

来自https://pub.dartlang.org/packages/swagger#-readme-tab-