java - 如何在 squareup.okhttp3 中缓存响应

Question

我正在尝试通过 OKhttp 缓存 http 响应但无法找到一些好的示例或文档。

感谢您的帮助

Answer 1

这会将您的所有响应缓存 2 分钟

OkHttpClient provideOkHttpClient () {
    Cache cache = new Cache(new File(context.getCacheDir(), "http-cache"), 10 * 1024 * 1024);
    return new OkHttpClient.Builder()
            .addNetworkInterceptor(provideCacheInterceptor())
            .cache(cache)
            .build();
}

Interceptor provideCacheInterceptor () {
    return new Interceptor() {
        @Override
        public Response intercept (Chain chain) throws IOException {
            Response response = chain.proceed( chain.request() );
            CacheControl cacheControl = new CacheControl.Builder()
                    .maxAge( 2, TimeUnit.MINUTES )
                    .build();

            return response.newBuilder()
                    .header("Cache-Control", cacheControl.toString() )
                    .build();
        }
    };
}