public class FirstSparkSql {
public static void main(String[] args) {
String masterMode = "local";//spark://master:7077
SparkConf conf = new SparkConf();
//conf.set("spark.executor.memory", "1024m");
conf.setAppName("First Spark SQL");
conf.setMaster(masterMode);
//解決異常：IllegalArgumentException: java.net.URISyntaxException: Relative path in absolute URI
conf.set("spark.sql.warehouse.dir","D:\\temp_files");
JavaSparkContext sc = new JavaSparkContext(conf);
SparkSession spark = SparkSession.builder().config(conf).getOrCreate();
Dataset<Row> df = spark.read().json("hdfs://master:9000/user/spark/input/persons.txt");
df.show();
sc.stop();
}
}
posted on 2018-03-21 11:31
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