拦截器没有被称为retrofit2

时间:2016-11-24 19:10:06

标签: java android retrofit2 okhttp3

尝试使用okhttp3和retrofit2添加拦截器以向请求添加标头。我注意到标题没有被添加到请求中,我的system.out.println调试行从未被调用过。不知道为什么,但这是我的代码:

创建服务:

OkHttpClient client = new OkHttpClient();

        client.newBuilder()
                .addInterceptor(new ServiceInterceptor(context))
                .authenticator(new MyAuthenticator(context))
                .build();

        service = (new Retrofit.Builder()
                .baseUrl(BASE_URL)
                .client(client)
                .addConverterFactory(GsonConverterFactory.create())
                .build())
                .create(Service.class);

ServiceInterceptor:

public class ServiceInterceptor implements Interceptor {

    private final Context context;

    public ServiceInterceptor(Context context){
        this.context = context;
    }

    @Override
    public Response intercept(Chain chain) throws IOException {
        Request request = chain.request();

        System.out.println("Interceptor");

        if(request.header("No-Authentication") == null){
            request = request.newBuilder()
                    .addHeader("User-Agent", "APP NAME")
                    .addHeader("Authorization", "bearer " + PreferenceManager.getDefaultSharedPreferences(context).getString("access_token", ""))
                    .build();
        }

        return chain.proceed(request);
    }
}

不完全是问题的一部分,但我的身份验证员从未被调用过......:

public class MyAuthenticator implements Authenticator {
    private Context context;

    public MyAuthenticator(Context context){
        this.context = context;
    }

    @Override
    public Request authenticate(Route route, Response response) throws IOException {
        //blah blah refresh token here...

        return null;
    }
}

1 个答案:

答案 0 :(得分:3)

您将client设置为默认OkHttpClient。您使用newBuilder()从该客户端创建新客户,但不要将其分配给任何内容。如果您没有使用第一个客户端,则应该首次分配构建器 -

OkHttpClient client = new OkHttpClient.Builder()
            .addInterceptor(new ServiceInterceptor(context))
            .authenticator(new MyAuthenticator(context))
            .build();