我發現logback
(由Ceki Gülcü)的偉大工程,保持行號太!
(和它的作品爲log4j
更換!真棒)
import ch.qos.logback._
import org.slf4j._
object Main {
def logger = LoggerFactory.getLogger("Main")
var thingy = {
x:Int =>
logger.info("x=" + x)
x + 1
}
def main(args: Array[String]) {
logger.info("Hello.")
logger.info("Hello again!")
val myInts : List[Int] = List(-25,1,5,20)
val myInts2 : List[Int] = myInts.filter { x:Int => x > 0 }
logger.info("my ints2:" + myInts2)
val myInts3 = myInts2.map(p => p * 2)
logger.info("my ints3:" + myInts3)
logger.info(thingy(1) + "")
}
}
對於任何人在艱難地開始使用Scala,這是我做得到的基本骨架了:
1)Download sbt-launcher.jar
並把它放在某個地方像/opt/
我用「sbt-launch-0.7.5.RC0.jar
」
2)創建一個bash腳本的快捷方式,SBT發射在nano /opt/bin/sbt
:
#!/bin/bash
java -jar /opt/sbt-launch-0.7.5.RC0.jar "[email protected]"
(使其可執行文件)
$ sudo chmod ug+x ./sbt
確保它在你的路徑了。
3)創建和配置SBT項目:
$ mkdir ./sc01
$ cd ./sc01
$ sbt
$ mkdir ./project/build</pre>
$ nano ./project/build/Project.scala</pre>
把這個在那裏:
import sbt._
class sc01(info: ProjectInfo) extends DefaultProject(info)
{
// dependencies
val logback_core = "ch.qos.logback" % "logback-core" % "0.9.24" % "compile" //LGPL 2.1
val logback_classic = "ch.qos.logback" % "logback-classic" % "0.9.24" % "compile" //LGPL 2.1
val log4j_over_slf4j = "org.slf4j" % "log4j-over-slf4j" % "1.6.1"
// if you are going to have any unmanaged (manually-added) jars
// def baseDirectories = "lib"
// def extraJars = descendents(baseDirectories, "*.jar")
// override def unmanagedClasspath = super.unmanagedClasspath +++ extraJars
// tasks - easy to define
lazy val hi = task { println("Hello World"); None }
// classpath
//override def mainScalaSourcePath = "src"
}
4)的東西從上面粘貼到主營:
$ nano ./src/main/scala/Main.scala
5 ) 我差點忘了!把這個/src/main/resources/logback.xml
(必須得到行號)
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<!-- encoders are assigned the type
ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} %line --- %msg%n</pattern>
</encoder>
</appender>
<root level="debug">
<appender-ref ref="STDOUT" />
</root>
</configuration>
6)$ sbt
現在,你應該在你的shell的sbt
控制檯:
> update
> compile
> run
希望這幫助。
有趣的反饋。我會試一試。 +1(不要忘記你可以選擇你自己的答案作爲官方答案) – VonC 2011-03-08 05:03:06