spark-submit 提交任务报错 java.lang.ClassNotFoundException: Demo02

案例：把sparksql的程序提交到spark的单机模式下执行

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package demo01

import org.apache.spark.SparkContext
import org.apache.spark.sql.SQLContext
import org.apache.spark.SparkConf

object Demo02 {
    def main(args: Array[String]): Unit = {
      //创建配置
                val conf = new SparkConf()
                conf.setAppName("Demo02")      //创建应用程序first
                conf.setMaster("local")
//                conf.set("spark.shuffle.manager","hash")

                //基于配置生成sc
                val sc = new SparkContext(conf)

                //创建出sqlContext
                val sqlContext = new SQLContext(sc)

                import sqlContext.implicits._
                val rdd = sc.makeRDD(List((1,"zhang"),(2,"li"),(3,"wang")))
                val df = rdd.toDF("id","name")

//                df.registerTempTable("tabx");
                df.createTempView("tabx")

                val df2 = sqlContext.sql("select * from tabx order by name")

                val rdd2 = df2.toJavaRDD.repartition(1)
                rdd2.saveAsTextFile("file:///home/hadoop/df.txt");
//                rdd2.saveAsTextFile("d:/df")
                
                sc.stop()
                }
}

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打成jar--> sql.jar  

提交集群运行  ./spark-submit --class Demo02 ./sql.jar 

java.lang.ClassNotFoundException: Demo02
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:348)
        at org.apache.spark.util.Utils$.classForName(Utils.scala:230)
        at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:732)
        at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180)
        at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205)
        at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:119)
        at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

解决办法：添加类的全路径名称  ./spark-submit --class demo01.Demo02 ./sql.jar