|NO.Z.00055|——————————|BigDataEnd|——|Hadoop&实时数仓.V35|——|项目.v35|需求五：数据处理&渠道来源统计.V1|——|需求分析|

一、需求5：实时统计各渠道来源用户数量

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二、编程实现工具类：SourceKafka

package myutils

import java.util.Properties
import org.apache.flink.api.common.serialization.SimpleStringSchema
import org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer

class SourceKafka {
  def getKafkaSource(topicName: String) : FlinkKafkaConsumer[String] = {
    val props = new Properties()
    props.setProperty("bootstrap.servers","hadoop01:9092,hadoop02:9092,hadoop03:9092");//3,4
    props.setProperty("group.id","consumer-group")
    props.setProperty("key.deserializer","org.apache.kafka.common.serialization.StringDeserializer")
    props.setProperty("value.deserializer","org.apache.kafka.common.serialization.StringDeserializer")
    props.setProperty("auto.offset.reset","la")

    new FlinkKafkaConsumer[String](topicName, new SimpleStringSchema(),props);
  }
}

三、编程实现样例类：

### --- 编程实现样例类一：CountByChannal

package modes

case class CountByChannal(chanal:String,count: Long)

### --- 编程实现样例类二：ChanalDetail

package modes

case class ChanalDetail(chanal: String, uid : String)

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Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart

                                                                                                                                                   ——W.S.Landor

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