flutter - 客户端握手错误 : CERTIFICATE_VERIFY_FAILED Self signed certificate in flutter

Question

我正在从我的 flutter 应用程序发出 https 帖子请求。因为我在服务器中使用自签名 SSL 证书，所以当我点击 API 时，我收到状态码为 405，我无法连接，

如果我使用 HTTP 包，我会收到以下异常，

HandshakeException: Handshake error in client (OS Error: I/flutter ( 7107): CERTIFICATE_VERIFY_FAILED: self signed certificate(handshake.cc:352))

当我尝试使用 deo 包时，我得到 405 状态码，下面是它的代码，

Response response;
    final Dio dio = Dio();
    (dio.httpClientAdapter as DefaultHttpClientAdapter).onHttpClientCreate =
    (HttpClient client) {
  client.badCertificateCallback =
      (X509Certificate cert, String host, int port) => true;
  return client;
};
  response = await dio.post(loginURL, data: {"username": username, "password": password});
  print(response.data.toString());
  print(response.statusCode);

我试图通过制作来避免 SSL 握手

 client.badCertificateCallback =
          (X509Certificate cert, String host, int port) => true;

仍然无法使用任何其他解决方案？

Answer 1

这对我有用

void main() {
  HttpOverrides.global = new MyHttpOverrides();
  runApp(MyApp());
}

class MyHttpOverrides extends HttpOverrides{
  @override
  HttpClient createHttpClient(SecurityContext context){
    return super.createHttpClient(context)
      ..badCertificateCallback = (X509Certificate cert, String host, int port)=> true;
  }
}

class MyApp extends StatelessWidget {
.....