qq_22511813的博客

package com.atguigu.bigdata.spark.mysqlimport java.ioimport java.sql.{Connection, DriverManager, PreparedStatement}import org.apache.spark.rdd.{JdbcRDD, RDD}import org.apache.spark.{SparkConf, ...

SparkContext的创建"#创建一个SparkConf"val work: SparkConf = new SparkConf().setMaster("local[*]").setAppName("work")"#创建一个SparkContext"val sc = new SparkContext(work)Spark的基本操作"#从内存中创建一个RDD"val listR...