我正在尝试在基于Jetty的服务器上实施Google验证码，但是我无法发送验证所需的POST请求，因为我得到了这个：
java.util.concurrent.ExecutionException: java.net.SocketException: Could not connect to www.google.com/2a00:1450:400f:808:0:0:0:2004:443
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:652)
at fishyPlays.SearchHandler.handle(SearchHandler.java:73)
at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at org.eclipse.jetty.server.Server.handle(Server.java:524)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:319)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:253)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.SocketException: Could not connect to www.google.com/2a00:1450:400f:808:0:0:0:2004:443
at org.eclipse.jetty.client.AbstractHttpClientTransport.connect(AbstractHttpClientTransport.java:128)
at org.eclipse.jetty.client.HttpClient$1.connect(HttpClient.java:582)
at org.eclipse.jetty.client.HttpClient$1.access$100(HttpClient.java:546)
at org.eclipse.jetty.client.HttpClient$1$1.failed(HttpClient.java:579)
at org.eclipse.jetty.client.AbstractHttpClientTransport.connectFailed(AbstractHttpClientTransport.java:152)
at org.eclipse.jetty.client.AbstractHttpClientTransport$ClientSelectorManager.connectionFailed(AbstractHttpClientTransport.java:195)
at org.eclipse.jetty.io.ManagedSelector$Connect.failed(ManagedSelector.java:661)
at org.eclipse.jetty.io.ManagedSelector$Connect.access$1300(ManagedSelector.java:628)
at org.eclipse.jetty.io.ManagedSelector$1.failed(ManagedSelector.java:366)
at org.eclipse.jetty.io.ManagedSelector$CreateEndPoint.run(ManagedSelector.java:610)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.execute(ExecuteProduceConsume.java:100)
at org.eclipse.jetty.io.ManagedSelector.run(ManagedSelector.java:147)
... 3 more
Caused by: java.net.SocketException: Network is unreachable
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Net.java:454)
at sun.nio.ch.Net.connect(Net.java:446)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)
at org.eclipse.jetty.client.AbstractHttpClientTransport.connect(AbstractHttpClientTransport.java:115)
... 16 more
这就是我发送上述请求的方式
HttpClient httpClient = new HttpClient();
httpClient.start();
...
Request r = httpClient.POST("https://www.google.com/recaptcha/api/siteverify");
r.accept("*/*");
r.param("secret", secret);
r.param("response", captcha);
try {
ContentResponse resp = r.send();
System.out.println(resp.getContentAsString());
} catch (InterruptedException | TimeoutException | ExecutionException e1) {
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
e1.printStackTrace();
return;
}
如果我用其他东西替换谷歌的地址，我猜它会起作用，因为我得到的是NullPointerException。