Android 拦截器判断Token是否过期

public class TokenInterceptor implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {

        Request request = chain.request();
        Response response = chain.proceed(request);
        ResponseBody responseBody = response.body();
        if (responseBody != null) {
            BufferedSource source = responseBody.source();
            source.request(Long.MAX_VALUE); // Buffer the entire body.
            Buffer buffer = source.buffer();
            try {
                String result = buffer.clone().readString(StandardCharsets.UTF_8);
                JSONObject jsonObject = new JSONObject(result);
                int code = jsonObject.getInt("code");
                if (code==401) {
                    //token过期 跳转到登录页
                    Intent intent = new Intent(MyApplication.context, LoginActivity.class);//LOGIN为注册表里添加
                    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    intent.putExtra("goToLogin","重新登录");
                    MyApplication.context.startActivity(intent);
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return response;
    }
}

网络请求工具类里面添加

.addInterceptor(new TokenInterceptor())

 //网络请求
    private RetrofitUtil(){
        HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
        interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient okHttpClient = new OkHttpClient
                .Builder()
                .addInterceptor(interceptor)
                //.addInterceptor(new MoreBaseUrlInterceptor())
                .addInterceptor(new HandlerUtils())
                .addInterceptor(new TokenInterceptor())
                .connectTimeout(20000,TimeUnit.SECONDS)
                .readTimeout(20000,TimeUnit.MILLISECONDS)
                .writeTimeout(20000,TimeUnit.SECONDS)
                .retryOnConnectionFailure(true)
                .sslSocketFactory(TrustAllCerts.createSSLSocketFactory())
                .hostnameVerifier(new TrustAllCerts.TrustAllHostnameVerifier())
                .build();
        retrofit = new Retrofit.Builder()
                .addConverterFactory(GsonConverterFactory.create())
                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                .baseUrl(API.BASE)
                .client(okHttpClient)
                .build();
    }