摘要：
import java.sql.{Connection, DriverManager, PreparedStatement} import it.bigdata.flink.study.SensorReding import org.apache.flink.configuration.Config 阅读全文
摘要：
import it.bigdata.flink.study.SensorReding import org.apache.flink.api.common.serialization.SimpleStringEncoder import org.apache.flink.core.fs.Path i 阅读全文
摘要：
import java.util import it.bigdata.flink.study.SensorReding import org.apache.flink.api.common.functions.RuntimeContext import org.apache.flink.stream 阅读全文
摘要：
class MyRichMapper extends RichMapFunction[SensorReding,String]{ override def open(parameters: Configuration): Unit = { //做一些初始化操作，比如数据库的连接 // getRunt 阅读全文
摘要：
数据 sensor_1,1547718101,35.8 sensor_1,1547718102,22.2 sensor_1,1547718101,55.3 sensor_1,1547718102,24.1 sensor_1,1547718103,57 sensor_1,1547718103,58 s 阅读全文
摘要：
数据： sensor_1,1547718101,35.8 sensor_1,1547718102,22.2 sensor_1,1547718101,55.3 sensor_1,1547718102,24.1 sensor_1,1547718103,57 sensor_1,1547718103,58 阅读全文
摘要：
import org.apache.flink.api.common.functions.{FilterFunction, ReduceFunction, RichMapFunction} import org.apache.flink.configuration.Configuration imp 阅读全文
摘要：
import org.apache.flink.api.common.functions.{FilterFunction, ReduceFunction, RichMapFunction} import org.apache.flink.configuration.Configuration imp 阅读全文
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import org.apache.flink.api.scala.ExecutionEnvironment import org.apache.flink.api.scala._ object WordCount { /** * 第一个flink，wordcount * @param args * 阅读全文
摘要：
import org.apache.flink.api.java.utils.ParameterTool import org.apache.flink.streaming.api.scala.{DataStream, StreamExecutionEnvironment} import org.a 阅读全文