4.5 自定义处理函数和窗口函数

代码

package com.hht.flink.analy

import java.sql.Timestamp

import org.apache.flink.api.common.functions.AggregateFunction
import org.apache.flink.api.common.state.{
   
    
    ListState, ListStateDescriptor}
import org.apache.flink.api.java.tuple.{
   
    
    Tuple, Tuple1}
import org.apache.flink.configuration.Configuration
import org.apache.flink.streaming.api.TimeCharacteristic
import org.apache.flink.streaming.api.datastream.DataStreamSink
import org.apache.flink.streaming.api.functions.Keye