java - AndroidでcachingHttpClientを使用してHttpResponseをキャッシュできません

Question

public class CacheDemo {

public static void main(String[] args) {
    CacheConfig cacheConfig = new CacheConfig();
    cacheConfig.setMaxCacheEntries(1000);
    cacheConfig.setMaxObjectSizeBytes(1024 * 1024);

    HttpClient cachingClient = new CachingHttpClient(new DefaultHttpClient(), cacheConfig);

    HttpContext localContext = new BasicHttpContext();

    sendRequest(cachingClient, localContext);
    CacheResponseStatus responseStatus = (CacheResponseStatus) localContext.getAttribute(
            CachingHttpClient.CACHE_RESPONSE_STATUS);
    checkResponse(responseStatus);


    sendRequest(cachingClient, localContext);
    responseStatus = (CacheResponseStatus) localContext.getAttribute(
            CachingHttpClient.CACHE_RESPONSE_STATUS);
    checkResponse(responseStatus);
}

static void sendRequest(HttpClient cachingClient, HttpContext localContext) {
    HttpGet httpget = new HttpGet("http://www.mydomain.com/content/");
    HttpResponse response = null;
    try {
        response = cachingClient.execute(httpget, localContext);
    } catch (ClientProtocolException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    } catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }
    HttpEntity entity = response.getEntity();
    try {
        EntityUtils.consume(entity);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

static void checkResponse(CacheResponseStatus responseStatus) {
    switch (responseStatus) {
        case CACHE_HIT:
            System.out.println("A response was generated from the cache with no requests "
                    + "sent upstream");
            break;
        case CACHE_MODULE_RESPONSE:
            System.out.println("The response was generated directly by the caching module");
            break;
        case CACHE_MISS:
            System.out.println("The response came from an upstream server");
            break;
        case VALIDATED:
            System.out.println("The response was generated from the cache after validating "
                    + "the entry with the origin server");
            break;
    }
}

}

それは私のために働いていません。

キャッシュからではなく、サーバーからデータを取得するたびに。

私は jar を使用して"httpclient-cache-4.1-beta1"います。