云星数据---Apache Flink实战系列(精品版)】：Flink流处理API详解与编程实战011-DataStream与MySql自定义sink和source(Java版)003

4、自定义sink 1.自定义sink package code.book.stream.customsinkandsource.jdbc.java; import org.apache.flink.configuration.Configuration; import org.apache.flink.streaming.api.functions.sink.RichSinkFunction;

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