摘要：Error:scalac: Multiple 'scala-library*.jar' files (scala-library.jar, scala-library.jar, scala-library.jar) in Scala compiler classpath in Scala SDK s 阅读全文

摘要：1 scala 2.11.12下载 brew search scala scala scala@2.11 scala@2.12 ✔ scalaenv scalapack scalariform scalastyle brew install scala@2.11 ==> Caveats scala@ 阅读全文

摘要： 阅读全文

摘要：参见链接 https://blog.csdn.net/u012373815/article/details/53266301 运行jar包： 将写好的项目打成jar，上传到服务器，进入SPARK_HOME的bin目录执行：spark-submit --class 类的全路径名 jar包路径 阅读全文