(CollectResultFetcher.java:203) at org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.next...(CollectResultIterator.java:106) at org.apache.flink.streaming.api.operators.collect.CollectResultIterator.hasNext...(CollectResultFetcher.java:203) at org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.cancelJob...(CollectResultFetcher.java:225) at org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.close...(CollectResultFetcher.java:177) at org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.next
StreamingWordCount 本地调试 import org.apache.flink.streaming.api.scala....BatchWordCount import org.apache.flink.api.scala.ExecutionEnvironment object BatchWordCount { /**...; import org.apache.flink.api.java.operators.DataSource; import org.apache.flink.api.java.tuple.Tuple2...import org.apache.flink.api.java.tuple.Tuple2; import org.apache.flink.streaming.api.datastream.DataStreamSource...; import org.apache.flink.streaming.api.datastream.SingleOutputStreamOperator; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment
; import org.apache.flink.streaming.api.datastream.DataStreamSource; import org.apache.flink.streaming.api.datastream.SingleOutputStreamOperator...; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; import org.apache.flink.streaming.api.windowing.time.Time...Flink WordCount Scala版 package com.bairong.flink.scala import org.apache.flink.api.java.utils.ParameterTool...import org.apache.flink.streaming.api.scala._ import org.apache.flink.streaming.api.windowing.time.Time...有一个注意点是，scala API的类要全部导入： import org.apache.flink.streaming.api.scala._ 否则代码编译会报错： ?
import org.apache.flink.streaming.api.scala._ import org.apache.flink.streaming.api.windowing.time.Time...import org.apache.flink.streaming.api.scala._ import org.apache.flink.streaming.api.windowing.time.Time...import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment import org.apache.flink.streaming.api.scala...import org.apache.flink.streaming.api.scala....import org.apache.flink.streaming.api.scala.
Wordcount案例 1.Scala代码 package com.xyg.streaming import org.apache.flink.api.java.utils.ParameterTool...import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment import org.apache.flink.streaming.api.windowing.time.Time...; import org.apache.flink.streaming.api.datastream.DataStream; import org.apache.flink.streaming.api.datastream.DataStreamSource...; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; import org.apache.flink.streaming.api.windowing.time.Time...程序 package com.xyg.batch import org.apache.flink.api.scala.ExecutionEnvironment import org.apache.flink.api.scala
示例代码如下： // FLINK STREAMING QUERY USING JAVA import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment...STREAMING QUERY USING SCALA import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment import...SCALA import org.apache.flink.api.scala.ExecutionEnvironment import org.apache.flink.table.api.scala.BatchTableEnvironment...示例代码如下： // BLINK STREAMING QUERY USING JAVA import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment...QUERY USING SCALA import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment import org.apache.flink.table.api.EnvironmentSettings
import org.apache.flink.streaming.api.scala....import org.apache.flink.api.java.tuple.Tuple import org.apache.flink.streaming.api.scala....import org.apache.flink.streaming.api.scala._ import org.apache.flink.streaming.api.scala.function.RichWindowFunction...{DataStream, StreamExecutionEnvironment} import org.apache.flink.streaming.api.scala._ import org.apache.flink.streaming.api.windowing.time.Time...{DataStream, StreamExecutionEnvironment} import org.apache.flink.streaming.api.scala._ import org.apache.flink.streaming.api.windowing.time.Time
org.apache.flink.streaming.scala.examples.socket import org.apache.flink.api.java.utils.ParameterTool...import org.apache.flink.streaming.api.scala._ import org.apache.flink.streaming.api.windowing.time.Time...; import org.apache.flink.streaming.api.datastream.DataStream; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment...import org.apache.flink.api.java.utils.ParameterTool import org.apache.flink.streaming.api.scala._ import...; import org.apache.flink.streaming.api.datastream.DataStream; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment
at org.apache.flink.streaming.api.graph.StreamConfig.getStreamOperator(StreamConfig.java:235) at...org.apache.flink.streaming.runtime.tasks.OperatorChain....at org.apache.flink.util.InstantiationUtil.readObjectFromConfig(InstantiationUtil.java:373) at org.apache.flink.streaming.api.graph.StreamConfig.getStreamOperator...:323) at org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java...:107) at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java
{ExecutionEnvironment, _} import org.apache.flink.streaming.api.scala....import org.apache.flink.streaming.api.scala....._ import org.apache.flink.streaming.api.scala....{DataStream, StreamExecutionEnvironment} import org.apache.flink.api.scala._ import org.apache.flink.streaming.connectors.redis.RedisSink...import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment import org.apache.flink.table.api.scala.StreamTableEnvironment
> org.apache.flink flink-streaming-java_${scala.binary.version}<...; import org.apache.flink.api.java.tuple.Tuple2; import org.apache.flink.streaming.api.datastream.DataStream...; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; import org.apache.flink.streaming.api.windowing.assigners.TumblingProcessingTimeWindows...; import org.apache.flink.streaming.api.windowing.time.Time; import org.apache.flink.util.Collector;...运行报错，提示： java.lang.NoClassDefFoundError: org/apache/flink/api/common/functions/FlatMapFunction 解决办法：
Scala版本 import org.apache.flink.api.java.utils.ParameterTool import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment...("node21", port, '\n') //需要加上这一行隐式转换 否则在调用flatmap方法的时候会报错 import org.apache.flink.api.scala._ // 解析数据...; import org.apache.flink.api.java.utils.ParameterTool; import org.apache.flink.streaming.api.datastream.DataStream...; import org.apache.flink.streaming.api.datastream.DataStreamSource; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment...; import org.apache.flink.streaming.api.windowing.time.Time; import org.apache.flink.util.Collector
; //Flink Scala api 引入的包 import org.apache.flink.api.scala.ExecutionEnvironment 流处理不同API引入StreamExecutionEnvironment...如下： //Flink Java api 引入的包 import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment...; //Flink Scala api 引入的包 import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment 四、Flink.../Scala 批处理导入隐式转换，使用Scala API 时需要隐式转换来推断函数操作后的类型 import org.apache.flink.api.scala._ //Scala 流处理导入隐式转换...，使用Scala API 时需要隐式转换来推断函数操作后的类型 import org.apache.flink.streaming.api.scala._ 六、关于Flink Java api 中的 returns
; import org.apache.flink.api.common.functions.FlatMapFunction; import org.apache.flink.api.common.serialization.SimpleStringSchema...; import org.apache.flink.api.java.utils.ParameterTool; import org.apache.flink.connector.base.DeliveryGuarantee...; import org.apache.flink.runtime.state.filesystem.FsStateBackend; import org.apache.flink.streaming.api.CheckpointingMode...; import org.apache.flink.streaming.api.datastream.DataStreamSource; import org.apache.flink.streaming.api.datastream.SingleOutputStreamOperator...; import org.apache.flink.streaming.api.environment.CheckpointConfig; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment
org.apache.flink.streaming.api.datastream.DataStream; import org.apache.flink.streaming.api.datastream.DataStreamSource...; import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; import org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer...文件代码案例 package guigu.table.sink import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment...org.apache.flink.streaming.api.scala._ import org.apache.flink.table.api.scala.StreamTableEnvironment...> package table.tableSink import org.apache.flink.streaming.api.scala._ import org.apache.flink.table.api.scala
{ExecutionEnvironment, _}import org.apache.flink.streaming.api.scala....org.apache.flink.streaming.api.scala....org.apache.flink.api.scala...._import org.apache.flink.streaming.api.scala....org.apache.flink.streaming.api.scala.StreamExecutionEnvironmentimport org.apache.flink.table.api.scala.StreamTableEnvironmentimport
import org.apache.flink.streaming.api.scala._ import org.apache.flink.table.api.Table import org.apache.flink.table.api.scala...._ import org.apache.flink.table.api.DataTypes import org.apache.flink.table.api.scala....代码如下： package EventTime import org.apache.flink.streaming.api.TimeCharacteristic import org.apache.flink.streaming.api.scala...代码如下 package EventTime import org.apache.flink.streaming.api.TimeCharacteristic import org.apache.flink.streaming.api.scala...代码如下 package EventTime import org.apache.flink.streaming.api.TimeCharacteristic import org.apache.flink.streaming.api.scala
main函数中使用 文件名：StreamWithMyNoParallelFunction.scala package com.tech.consumer import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment...MyParallelFunction.scala package com.tech.consumer import org.apache.flink.streaming.api.functions.source...main函数中使用 文件名：StreamWithMyParallelFunction.scala package com.tech.consumer import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment...package com.tech.consumer import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment...import org.apache.flink.streaming.api.functions.source.
Flink读parquet import org.apache.flink.core.fs.Path import org.apache.flink.formats.parquet.ParquetRowInputFormat...import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment import org.apache.flink.streaming.api.scala...import org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink import org.apache.flink.streaming.api.functions.sink.filesystem.bucketassigners.DateTimeBucketAssigner...import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment import org.apache.flink.streaming.api.scala...._ import org.apache.flink.streaming.api.windowing.time.Time import org.apache.log4j.
-- Flink批和流开发依赖包 --> org.apache.flink flink-scala_...> org.apache.flink flink-streaming-scala_${scala.binary.version}...= ExecutionEnvironment.getExecutionEnvironment//2.导入隐式转换，使用Scala API 时需要隐式转换来推断函数操作后的类型import org.apache.flink.api.scala...版本WordCount使用Flink Scala DataStream api实现WordCount具体代码如下：//1.创建环境val env: StreamExecutionEnvironment...org.apache.flink.streaming.api.scala._//3.读取文件val ds: DataStream[String] = env.readTextFile(".
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