import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.CacheControlStrategy;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
import java.io.IOException;
import java.io.InputStream;
public class HttpCacheClientExample {
public static void main(String[] args) throws IOException {
CloseableHttpClient httpClient = createHttpClient();
HttpGet httpGet = new HttpGet("https://example.com/api/resource");
HttpResponse response = httpClient.execute(httpGet);
HttpEntity entity = response.getEntity();
if (entity != null) {
try (InputStream inputStream = entity.getContent()) {
// ...
}
}
httpClient.close();
}
private static CloseableHttpClient createHttpClient() {
SSLConnectionSocketFactory sslsf = SSLConnectionSocketFactory.getSocketFactory();
ConnectionSocketFactory plainsf = PlainConnectionSocketFactory.getSocketFactory();
Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
.register("http", plainsf)
.register("https", sslsf)
.build();
BasicHttpClientConnectionManager connManager = new BasicHttpClientConnectionManager(registry);
RequestConfig config = RequestConfig.custom()
.setConnectTimeout(5000)
.setSocketTimeout(5000)
.build();
CacheControlStrategy cacheControlStrategy = CacheControlStrategy.newNeverCacheStrategy();
CloseableHttpClient httpClient = HttpClients.custom()
.setConnectionManager(connManager)
.setDefaultRequestConfig(config)
.setCacheControlStrategy(cacheControlStrategy)
.build();
return httpClient;
}
}
