Scala运行脚本时报UnknownHostException解决办法

‍[root@bogon Desktop]# scala /usr/local/scala-2.10.5/hello.scala
java.net.UnknownHostException: bogon: bogon: Name or service not known
 at java.net.InetAddress.getLocalHost(InetAddress.java:1473)
 at scala.tools.nsc.io.Socket$.localhost(Socket.scala:38)
 at scala.tools.nsc.CompileSocket.getsock$1(CompileSocket.scala:169)
 at scala.tools.nsc.CompileSocket.getOrCreateSocket(CompileSocket.scala:184)
 at scala.tools.nsc.ScriptRunner.compileWithDaemon(ScriptRunner.scala:80)
 at scala.tools.nsc.ScriptRunner.scala$tools$nsc$ScriptRunner$$compile$1(ScriptRunner.scala:123)
 at scala.tools.nsc.ScriptRunner$$anonfun$withCompiledScript$1.apply$mcZ$sp(ScriptRunner.scala:157)
 at scala.tools.nsc.ScriptRunner$$anonfun$withCompiledScript$1.apply(ScriptRunner.scala:131)
 at scala.tools.nsc.ScriptRunner$$anonfun$withCompiledScript$1.apply(ScriptRunner.scala:131)
 at scala.tools.nsc.util.package$.trackingThreads(package.scala:51)
 at scala.tools.nsc.util.package$.waitingForThreads(package.scala:35)
 at scala.tools.nsc.ScriptRunner.withCompiledScript(ScriptRunner.scala:130)
 at scala.tools.nsc.ScriptRunner.runScript(ScriptRunner.scala:188)
 at scala.tools.nsc.ScriptRunner.runScriptAndCatch(ScriptRunner.scala:201)
 at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:76)
 at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:96)
 at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:105)
 at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)
Caused by: java.net.UnknownHostException: bogon: Name or service not known
 at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
 at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:901)
 at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1293)
 at java.net.InetAddress.getLocalHost(InetAddress.java:1469)
 ... 17 more

楼主在执行一个Scala脚本小例子的时候出现了如上问题，基于楼主Linux是个菜鸟，因此一阵度娘仍然无果。

后发现是因为系统连不上bogon这个主机名，致使scala脚本编译失败

因此相似状况可按以下步骤操做：

       1.打开系统hosts文件，vim  /etc/hosts

       2.添加一条主机名和IP地址的映射，如127.0.0.1  bogon

这样便解决了以前编译失败的问题