在mongodb中存值，如果存在則修改，不存在插入

import com.mongodb.hadoop.MongoOutputFormat
import org.apache.hadoop.conf.Configuration
import org.apache.spark.rdd.RDD
import org.apache.spark.{SparkConf, SparkContext}
import org.bson.BasicBSONObject
import com.mongodb.{BasicDBObject}
import com.mongodb.hadoop.io.MongoUpdateWritable
/**
  * Created by Administrator on 2016/8/23 0023.
  */
object TestMongoDB {
  def main(args: Array[String]): Unit = {
    System.setProperty("hadoop.home.dir", "E:/hadoop-2.4.1/")
    val conf = new SparkConf().setAppName("macType").setMaster("local[10]")
    val sc = new SparkContext(conf)
    var data = sc.textFile("F:/aa.txt")
    insertResultToMongoDB(data)
  }
  def insertResultToMongoDB(rdd1:RDD[String]): Unit ={
    val config = new Configuration()
    config.set("mongo.output.uri", "mongodb://localhost:27017/admin.zz") //輸出表名
    val rdd = rdd1.map((s: String) =>{
      var bson = new BasicBSONObject()
      var time = System.currentTimeMillis()
      bson.put("_id",s)
      bson.put("xxx", time.toString)
      (s,new MongoUpdateWritable(
        new BasicDBObject("_id", s),  // Query
        new BasicDBObject("$set", bson),  // Update operation
        true,  // Upsert
        false,   // Update multiple documents
        false
      ))
    })
    for(e <- rdd){
      println(e._1+"  " + e._2)
    }
    println("-------------------")
    rdd.saveAsNewAPIHadoopFile(
      "file:///this-is-completely-unused",
      classOf[Object],
      classOf[MongoUpdateWritable],
      classOf[MongoOutputFormat[Object, MongoUpdateWritable]],
      config)
  }
}