java CloseableHttpClient保持活动标题问题

Question

我正在尝试使用CloseableHttpClient击中其余端点，我想使用ClosableHttpClient的keep-alive属性。即使我将keepalive设置为10000毫秒，每个请求后连接仍然关闭。我启用了调试日志，我可以在每个response.close（）上看到连接已关闭。

@media print {
body {transform: scale(.5);}
table {page-break-inside: avoid;}

日志

public class RestClientTest {
static final Logger logger = Logger.getLogger(RestClientTest.class);

static {
    System.setProperty("org.apache.http", "debug");
    System.setProperty("org.apache.http.wire", "debug");
    System.setProperty("org.apache.http.impl.conn", "debug");
    System.setProperty("org.apache.http.impl.client", "debug");
    System.setProperty("org.apache.http.client", "debug");
}
public static void main(String[] args) throws IOException {
    ConnectionKeepAliveStrategy myStrategy = new ConnectionKeepAliveStrategy() {
        public long getKeepAliveDuration(HttpResponse httpResponse, org.apache.http.protocol.HttpContext context) {
            return 10*1000;
        }
    };

   PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
   CloseableHttpClient httpClient = HttpClients.custom()
            .setKeepAliveStrategy(myStrategy)
            .setConnectionManager(connManager)
            .build();
    HttpGet httpGet;
    CloseableHttpResponse response = null;
    try {
        httpGet = new HttpGet("http://localhost:8080/company/offlineTicket");
        for (int i = 0; i <100; i++) {
            long starTime = System.currentTimeMillis();
            response = httpClient.execute(httpGet);
            if (response.getStatusLine().getStatusCode() != 200) {
                throw new RuntimeException();
            }      
            response.close();
   }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        httpClient.close();
    }
}
}