android - 使用 Retrofit 2 获取 SSLException

Question

我正在创建授权应用程序，我正在使用 Retrofit 2。当我进行调用时，会转到 onFailure 方法并获取异常

“javax.net.ssl.SSLException:连接被对等方关闭”

但问题是，昨天这很管用。今天它给出了异常(exception)。我在网上找到一些SSLException - Connection closed by peer on Android 4.x versions ，或者这个 How to add TLS v 1.0 and TLS v.1.1 with Retrofit ，但这对我没有帮助。任何想法如何解决它。在后端启用 TLS1.2。

public class RegistrationFragment extends BaseFragment {
View mainView;

ApiClient apiClient = ApiClient.getInstance();

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    mainView = inflater.inflate
            (R.layout.registration_fragment, container, false);

            //Calling the authorization method
            registerCall();
        }
    });

    return mainView;
}

//User authorization method

public void registerCall() {

    Call<ResponseBody> call = apiClient.registration(supportopObj);
    call.enqueue(new Callback<ResponseBody>() {
        @Override
        public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
            if (response.isSuccessful()) {

                //Calling the clientCall method for getting the user clientID and clientSecret
                Toast.makeText(getActivity(), "Registration Successful ",
                        Toast.LENGTH_SHORT).show();;

            } else {
                //if the response not successful
                Toast.makeText(getActivity(), "Could not register the user maybe already registered ",
                        Toast.LENGTH_SHORT).show();
            }
        }

        @Override
        public void onFailure(Call<ResponseBody> call, Throwable t) {
            Toast.makeText(getActivity(), "An error occurred", Toast.LENGTH_SHORT).show();
        }
    });
}
}

Answer 1

不是因为Retrofit，而是因为okhttp。如果你使用 okhttp version 3.x ，你会遇到这个问题。直接的解决方案是使用 okhttp 版本 2.x。还有一点要补充的是，这个问题只发生在 Android 版本 16-20 Link for reference