Spark_24_读取JDBC数据构建DataFrameDataSet（MySQL为例）（三）

 package SparkSql;

    
  
    
 import org.apache.spark.SparkConf;
    
 import org.apache.spark.SparkContext;
    
 import org.apache.spark.api.java.JavaSparkContext;
    
 import org.apache.spark.sql.DataFrameReader;
    
 import org.apache.spark.sql.Dataset;
    
 import org.apache.spark.sql.Row;
    
 import org.apache.spark.sql.SQLContext;