改造返回缓存的响应 [英] Retrofit is returning cached response

问题描述

我正在Android应用程序中使用Retrofit.当我使用令牌访问API来获取用户信息时，它会给出已缓存的(先前)响应.每当我注销并再次登录时，API都会提供以前的用户详细信息，我在Postman中对API进行了测试，在此可以正常工作.

I am using Retrofit in an Android application. When I hit an API with token to get user information it gives cached(previous) response. Whenever I logged out and log in again API gives previous user detail, I tested API in Postman it works fine there.

我尝试了一些搜索过的解决方案，但是没有任何效果.

I have tried some solutions I searched but nothing is working.

我收到的响应标头是

Transfer-Encoding:分块内容类型:application/json;字符集= utf-8服务器:红est日期:2018年1月8日星期一9:35:26 GMT

Transfer-Encoding: chunked Content-Type: application/json; charset=utf-8 Server: Kestrel Date: Mon, 08 Jan 2018 09:35:26 GMT

下面是 ApiClient 类

public class ApiClient {

public static final String BASE_URL = "http://XX.XXX.XXX.XX/api/";
private static Retrofit authRetrofit = null;
private static Retrofit retrofit = null;

public static Retrofit getClient() {

    if (retrofit == null) {
        retrofit = new Retrofit.Builder()
                .baseUrl(BASE_URL)
                .addConverterFactory(ScalarsConverterFactory.create())
                .build();
    }
    return retrofit;
}

 public static Retrofit getAuthorizeClient(final String token) {

    OkHttpClient.Builder httpClient = new OkHttpClient.Builder();

    httpClient.addInterceptor(new Interceptor() {
        @Override
        public Response intercept(Chain chain) throws IOException {
            Request original = chain.request();

            Request request = original.newBuilder()
                    .addHeader("Authorization", "Bearer " + token)
                    .addHeader("Cache-control", "no-cache")
                    .method(original.method(), original.body())
                    //.cacheControl(CacheControl.FORCE_NETWORK)
                    .build();

            return chain.proceed(request);
        }
    });

    OkHttpClient client = httpClient.cache(null).build();

    if (authRetrofit == null) {
        authRetrofit = new Retrofit.Builder()
                .baseUrl(BASE_URL)
                .addConverterFactory(ScalarsConverterFactory.create())
                .client(client).build();
    }
    return authRetrofit;
}

}

推荐答案

在您的 httpClient 拦截器中，尝试添加缓存控制标头:

In your httpClient interceptor, try adding cache control header:

 .addHeader("Cache-control", "no-cache");

编辑

只是注意到您正在使用 Retrofit2

Just noticed you are on Retrofit2

original.newBuilder().header("Cache-control", "no-cache");

或者尝试将其作为注释添加到您的API方法中:

Alternatively try adding it as an annotation to your API method:

@Headers("Cache-control: no-cache")
Response callApi();

根据文档.

编辑2

好的，我怀疑是由于您的 if 条件，如果条件失败，您的 authRetrofit 不会被更新.尝试将其删除

Okay I suspect it's because of your if condition, your authRetrofit wouldn't be updated if condition failed. Try removing it

if(authRetrofit == null)

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