yixiaoqi00 2020-04-22
import org.apache.hadoop.hbase.io.ImmutableBytesWritable
import org.apache.hadoop.hbase.mapreduce.TableOutputFormat
import org.apache.hadoop.hbase.client.Result
import org.apache.hadoop.hbase.client.Put
import org.apache.hadoop.mapreduce.Job
import org.apache.hadoop.hbase.util.Bytes
import org.apache.spark.{SparkConf, SparkContext}
/**
* Spark写HBase
*/
object SparkWriteHbase {
def main(args: Array[String]): Unit = {
val conf = new SparkConf().setAppName("SparkWriteHBase").setMaster("local")
val sc = new SparkContext(conf)
val tableName = "student"
sc.hadoopConfiguration.set(TableOutputFormat.OUTPUT_TABLE, tableName)
val job = new Job(sc.hadoopConfiguration)
job.setOutputKeyClass(classOf[ImmutableBytesWritable])
job.setOutputValueClass(classOf[Result])
job.setOutputFormatClass(classOf[TableOutputFormat[ImmutableBytesWritable]])
val inDataRDD = sc.makeRDD(Array("3,Rongcheng,M,26","4,Guanhua,M,27"))
val rdd = inDataRDD.map(_.split(",")).map(arr=>{
val put = new Put(Bytes.toBytes(arr(0)))
put.addColumn(Bytes.toBytes("info"),Bytes.toBytes("name"),Bytes.toBytes(arr(1)))
put.addColumn(Bytes.toBytes("info"),Bytes.toBytes("gender"),Bytes.toBytes(arr(2)))
put.addColumn(Bytes.toBytes("info"),Bytes.toBytes("age"),Bytes.toBytes(arr(3)))
(new ImmutableBytesWritable(),put)
})
rdd.saveAsNewAPIHadoopDataset(job.getConfiguration)
}
}