Apache HttpComponents CookieStore 不存储 Cookie

Question

我正在使用 HttpComponents 4.5.2 并且我正在尝试存储 cookie，因为我需要将它们用于登录和其他请求。当应用程序仍然运行时代码工作正常，但这里的问题是当我重新启动它时，应该存储在 CookieStore 中的 cookie 不存在。这是我写的：

public static void main( String[] args ) throws InterruptedException
{
    RequestConfig globalConfig = RequestConfig.custom()
            .setCookieSpec(CookieSpecs.STANDARD).build();
    BasicCookieStore cookieStore = new BasicCookieStore();
    HttpClientContext context = HttpClientContext.create();
    context.setCookieStore(cookieStore);
    CloseableHttpAsyncClient httpclient = HttpAsyncClients.custom()
            .setDefaultRequestConfig(globalConfig)
            .setDefaultCookieStore(cookieStore)
            .build();
    httpclient.start();
    login(httpclient, context);
}

public static void login(CloseableHttpAsyncClient httpClient, HttpClientContext context) throws InterruptedException
{
    JSONObject json = new JSONObject("{ email : blahblahblah1, password : blahblahblah2 }");
    StringEntity requestEntity = new StringEntity(
            json.toString(),
            ContentType.APPLICATION_JSON);

    HttpPost postMethod = new HttpPost("http://localhost:8080/login");
    postMethod.setEntity(requestEntity);

    final CountDownLatch latch = new CountDownLatch(1);
    httpClient.execute(postMethod, context, new FutureCallback<HttpResponse>() {

        public void completed(final HttpResponse response) {
            latch.countDown();
            System.out.println(postMethod.getRequestLine() + "->" + response.getStatusLine());
            //System.out.println(context.getCookieStore().getCookies().size());
        }

        public void failed(final Exception ex) {
            latch.countDown();
            System.out.println(postMethod.getRequestLine() + "->" + ex);
        }

        public void cancelled() {
            latch.countDown();
            System.out.println(postMethod.getRequestLine() + " cancelled");
        }

    });
    latch.await();
}

我已阅读 HttpComponents 文档和关于 cookie 的第 3.5 节说：

HttpClient can work with any physical representation of a persistent cookie store that implements the CookieStore interface. The default CookieStore implementation called BasicCookieStore is a simple implementation backed by a java.util.ArrayList. Cookies stored in an BasicClientCookie object are lost when the container object get garbage collected. Users can provide more complex implementations if necessary

所以我想知道是否留给用户来实现某种可以有效存储 cookie 的结构，或者我是否遗漏了什么。

Answer 1

是的，使用 ArrayList 支持的 BasicCookieStore 意味着当您的 jvm 存在时，那里的数据就像内存中的任何 ArrayList 一样丢失。

BasicCookieStore class 还实现了 Serializable，因此您可以使用它来将其保存到磁盘并在您的应用启动时恢复（如果该文件存在）。

您可以从验证该流程的测试中借用一些代码 TestBasicCookieStore#testSerialization。

Apache HttpComponents CookieStore 不存储 Cookie

Apache HttpComponents CookieStore Not Storing Cookies

apache-httpcomponents

apache-httpclient-4.x

apache-httpasyncclient