我使用intelliJ创建了一个sbt项目 . 我在项目的 lib 文件夹中复制了所需的jdbc jar sqljdbc42.jar . sbt package 圆满结束 . 我在 Windows 的 spark-shell --driver-class-path C:\sqljdbc_6.0\enu\jre8\sqljdbc42.jar 开始了火花 .

import org.apache.spark.SparkContext

import org.apache.spark.SparkContext._

import org.apache.spark.SparkConf

import java.sql._

object ConnTest extends App {

val conf = new SparkConf()

val sc = new SparkContext(conf.setAppName("Test").setMaster("local[*]"))

// The following four statements work if running interactively in the Spark shell

val sqlContext = new org.apache.spark.sql.SQLContext(sc)

val jdbcSqlConn = "jdbc:sqlserver://...;databaseName=...;user=...;password=...;"

val jdbcDf = sqlContext.read.format("jdbc").options(Map(

"url" -> jdbcSqlConn,

"dbtable" -> "testTable"

)).load()

jdbcDf.show(10)

sc.stop()

}

但是，以下 spark-submit 命令出错 .

spark-submit.cmd --class ConnTest --master local[4] .\target\scala-2.11\test_2.11-1.0.jar

spark-submit.cmd --class ConnTest --master local[4] .\target\scala-2.11\test_2.11-1.0.jar --jars \sqljdbc_6.0\enu\jre8\sqljdbc42.jar

Exception in thread "main" java.sql.SQLException: No suitable driver

at java.sql.DriverManager.getDriver(Unknown Source)

at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions$$anonfun$7.apply(JDBCOptions.scala:84)

at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions$$anonfun$7.apply(JDBCOptions.scala:84)

at scala.Option.getOrElse(Option.scala:121)

at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions.(JDBCOptions.scala:83)

at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions.(JDBCOptions.scala:34)

at org.apache.spark.sql.execution.datasources.jdbc.JdbcRelationProvider.createRelation(JdbcRelationProvider.scala:32)

at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:330)

at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:152)

at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:125)

at ConnTest$.delayedEndpoint$ConnTest$1(main.scala:14)

at ConnTest$delayedInit$body.apply(main.scala:6)

at scala.Function0$class.apply$mcV$sp(Function0.scala:34)

at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)

at scala.App$$anonfun$main$1.apply(App.scala:76)

at scala.App$$anonfun$main$1.apply(App.scala:76)

at scala.collection.immutable.List.foreach(List.scala:381)

at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:35)

at scala.App$class.main(App.scala:76)

at ConnTest$.main(main.scala:6)

at ConnTest.main(main.scala)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:743)

at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:187)

at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:212)

at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:126)

at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

Update: 如果直接在Spark shell中运行语句，我可以看到表格内容 .

Update 2: 运行时确实显示以下消息 spark-submit

17/05/15 16:12:30 INFO SparkContext：在spark：//10.8.159.130：7587 / jars / sqljdbc42.jar添加了JAR文件：/ C：/sqljdbc_6.0/enu/jre8/sqljdbc42.jar时间戳1494879150052