使用sparksql读取mysql中的数据

1.使用sparksql读取MySQL中的数据，读取整张表的时候，代码如下

val conf=new SparkConf().setAppName("SparkSql running......................").setMaster("local")
val sc=new SparkContext(conf)
val sqlContext=new SQLContext(sc)//10.0.190.102

var jdbcDf=sqlContext.read.format("jdbc").options(Map("url"->"jdbc:mysql://10.10.190.102:3306/db",
"driver" -> "com.mysql.jdbc.Driver",
"dbtable"->"temp",
"user"->"root","password"->"root")).load()

var jdbcDf=sqlContext.read.format("jdbc").options(Map("url"->"jdbc:mysql://10.10.190.102:3306/db",
"driver" -> "com.mysql.jdbc.Driver",
"dbtable"->"(select * from temp) as aaa",
"user"->"root","password"->"root")).load()

select * from temp