为什么dispatch会抛出“java.net.ConnectException:General SSLEngine …”和特定URL的“意外状态”exception?

我有以下非工作代码:

object Main extends App { import dispatch._ def test(address: String) = { Await.result(Http.default(url(address).GET OK as.String), Duration.Inf) } // This works fine val s1 = test("http://download.finance.yahoo.com/d/quotes.csv?s=MSFT&f=sohgbav") println(s1) // This throws Exception 1 val s2 = test("http://www.alphavantage.co/query?function=TIME_SERIES_DAILY_ADJUSTED&symbol=MSFT&apikey=demo&datatype=csv") println(s2) // This throws Exception 2 val s3 = test("https://www.alphavantage.co/query?function=TIME_SERIES_DAILY_ADJUSTED&symbol=MSFT&apikey=demo&datatype=csv") println(s3) } 

我想知道为什么“s1”工作正常,而“s2”和“s3”抛出exception。 抛出的exception是:

例外1:

 [error] ! access URL [error] java.util.concurrent.ExecutionException: dispatch.StatusCode: Unexpected response status: 301 (NettyResponseFuture.java:172) [error] org.asynchttpclient.netty.NettyResponseFuture.get(NettyResponseFuture.java:172) [error] dispatch.HttpExecutor.$anonfun$apply$3(execution.scala:123) 

例外2:

 [error] ! access URL [error] java.util.concurrent.ExecutionException: java.net.ConnectException: General SSLEngine problem (NettyResponseFuture.java:172) [error] org.asynchttpclient.netty.NettyResponseFuture.get(NettyResponseFuture.java:172) [error] dispatch.HttpExecutor.$anonfun$apply$3(execution.scala:123) 

此外,当我通过Safari Web浏览器访问它们时,所有三个URL都按预期工作。 为什么第一个URL通过发送工作正常,但最后两个不是?

如果您想信任所有证书,例如在链接的Play示例中,请尝试以下操作:

 Http.withConfiguration(config => config.setAcceptAnyCertificate(true))(url(address).GET OK as.String) 

为了创建一个validation证书的Http客户端,我在这里找到了一些示例代码: https : //kevinlocke.name/bits/2012/10/03/ssl-certificate-verification-in-dispatch-and-asynchttpclient/ 。