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我在安装了 Oracle Java 8（Java 7 也有同样的问题）的 Ubuntu VM 上运行 Activator 1.2.3。我正在尝试运行 Java Play 服务器来训练/开发。

它启动成功，我什至可以在浏览器中访问 UI，但大约一分钟后，无论我是否执行任何操作，Activator 都会崩溃/停止并出现以下错误：

/opt/activator/activator ui -Dhttp.address=0.0.0.0
Checking for a newer version of Activator (current version 1.2.3)...
... our current version 1.2.3 looks like the latest.
Found previous process id: 16189
FOUND REPO = activator-local @ file:/opt/activator-1.2.3/repository
Play server process ID is 16442
[info] play - Application started (Prod)
[info] play - Listening for HTTP on /0:0:0:0:0:0:0:0:8888
java.lang.RuntimeException: Web server never started!
        at scala.sys.package$.error(package.scala:27)
        at activator.UIMain.checkAlive$1(UIMain.scala:164)
        at activator.UIMain.waitForServerStartup(UIMain.scala:169)
        at activator.UIMain.run(UIMain.scala:115)
        at activator.UIMain.run(UIMain.scala:87)
        at xsbt.boot.Launch$$anonfun$run$1.apply(Launch.scala:109)
        at xsbt.boot.Launch$.withContextLoader(Launch.scala:129)
        at xsbt.boot.Launch$.run(Launch.scala:109)
        at xsbt.boot.Launch$$anonfun$apply$1.apply(Launch.scala:36)
        at xsbt.boot.Launch$.launch(Launch.scala:117)
        at xsbt.boot.Launch$.apply(Launch.scala:19)
        at xsbt.boot.Boot$.runImpl(Boot.scala:44)
        at xsbt.boot.Boot$.main(Boot.scala:20)
        at xsbt.boot.Boot.main(Boot.scala)
Error during sbt execution: java.lang.RuntimeException: Web server never started!
[info] application - onStop received closing down the app
[warn] application - AppManager onApplicationStop is disabled pending some 
refactoring so it works with FakeApplication in tests
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1 回答 1

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我刚刚意识到调用 CheckAlive 方法可能会失败，因为它正在尝试针对指定的 0.0.0.0 等 IP 进行测试，因为我希望它监听所有 IP 而不仅仅是 localhost（请参阅如何强制 Typesafe Activator 监听 0.0. 0.0:8888）。我将IP参数设置为VM的外部IP（10.0.2.15），现在看起来很稳定。

/opt/activator/activator ui -Dhttp.address=10.0.2.15

出于自动化目的，您还可以执行以下操作：

IP_ADDRESS=`ifconfig eth0 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}'`
/opt/activator/activator ui -Dhttp.address=${IP_ADDRESS} -Dhttp.port=8888 &
于 2014-07-22T21:09:58.907 回答