Jetty：如何在Jetty客户端中使用SSL

Question

我正在使用Jetty开发客户端应用程序。

服务器部分我没有使用Jetty。

我需要在客户端配置什么，才能使用Jetty客户端发送"https"请求？

以下是我为HTTP客户端进行的配置：

httpClient = new HttpClient();
// Configure HttpClient
httpClient.setFollowRedirects(false);

httpClient.start();

Request request = httpClient.newRequest(url);
//code
httpClient.stop();

如果我使用 "https" 发送请求，就会出现以下异常：

java.util.concurrent.ExecutionException: java.lang.NullPointerException
    at org.eclipse.jetty.client.util.FutureResponseListener.getResult(FutureResponseListener.java:118)
    at org.eclipse.jetty.client.util.FutureResponseListener.get(FutureResponseListener.java:101)
    at org.eclipse.jetty.client.HttpRequest.send(HttpRequest.java:653)
    at egm.httpClient.jetty.TestBackend.POST(TestBackend.java:204)
    at egm.httpClient.jetty.TestStep.execute(TestStep.java:77)
    at egm.httpClient.jetty.TestSuite.execute(TestSuite.java:57)
    at egm.httpClient.jetty.TestLauncher.main(TestLauncher.java:139)
Caused by: java.lang.NullPointerException
    at org.eclipse.jetty.io.ssl.SslClientConnectionFactory.newConnection(SslClientConnectionFactory.java:57)
    at org.eclipse.jetty.client.AbstractHttpClientTransport$ClientSelectorManager.newConnection(AbstractHttpClientTransport.java:187)
    at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:411)
    at org.eclipse.jetty.io.ManagedSelector.access$1600(ManagedSelector.java:56)
    at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:587)
    at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:213)
    at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.execute(ExecuteProduceConsume.java:101)
    at org.eclipse.jetty.io.ManagedSelector.run(ManagedSelector.java:136)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
    at java.lang.Thread.run(Unknown Source)

- sabrina2020

Answer 1

自从jetty-client >= 10版本，HttpClient像浏览器一样支持开箱即用的HTTPS请求。

---

在jetty-client 9之前，

要执行HTTPS请求，你需要首先创建一个SslContextFactory.Client。

你需要像这样将一个SslContextFactory传递给HttpClient:

HttpClient httpClient = new HttpClient(new SslContextFactory());

您甚至可以通过信任所有或提供密钥库来配置SslContextFactory：

new SslContextFactory(true);
new SslContextFactory("/path/to/.keystore");

- Roald Bankras

Answer 2

这是我在使用Jetty 11时的有效解决方法

SslContextFactory.Client sslContextFactory = new SslContextFactory.Client();
sslContextFactory.setTrustAll(true); // you might want to think about this first


ClientConnector clientConnector = new ClientConnector();
clientConnector.setSslContextFactory(sslContextFactory);

HttpClient httpClient = new HttpClient(new HttpClientTransportDynamic(clientConnector));
httpClient.start();

如需解释，请在此处查看官方文档 https://www.eclipse.org/jetty/documentation/jetty-11/programming-guide/index.html#pg-client-http-configuration-tls

- mwikya