Idea上使用Gradle構建Spark項目

1. 新建項目選擇Gradle項目
2. build.gradle

group 'org.fashj'
version '1.2'

apply plugin: 'idea'
apply plugin: 'scala'

sourceCompatibility = 1.8

repositories {
    maven {
        url 'http://maven.aliyun.com/nexus/content/groups/public/'
    }
    mavenCentral()

}

dependencies {
    testCompile group: 'junit', name: 'junit', version: '4.11'
    compile group: 'org.scala-lang', name: 'scala-library', version: '2.10.4'
    testCompile "org.scala-lang:scala-library:2.11.8"
    compile group: 'org.apache.spark', name: 'spark-core_2.10', version: '2.0.1'

}

3.編寫代碼

package org.fashj.spark

import org.apache.spark.{SparkConf, SparkContext}

/**
 - @author zhengsd
  */
object SparkPi {
  def main(args: Array[String]) {
    val conf = new SparkConf()
    val sc = new SparkContext(conf)
    val text = sc.textFile("file:///usr/local/spark/README.md")
    val result = text.flatMap(_.split(' ')).map((_, 1)).reduceByKey(_ + _).collect()
    result.foreach(println)

  }
}

• 生成Jar
  
• 在linux服務器上運行

./spark-submit --class "org.fashj.spark.SparkPi" /home/hadoop/spark-simple-1.2.jar