总结：Flink任务执行

一、背景

一直很好奇，Flink是如何运行我们的java类任务的，今天先记录下。

二、步骤

1、项目中添加Maven 依赖项

<dependencies><!-- Flink Core --><dependency><groupId>org.apache.flink</groupId><artifactId>flink-java</artifactId><version>1.15.0</version></dependency><dependency><groupId>org.apache.flink</groupId><artifactId>flink-streaming-java_2.12</artifactId><version>1.15.0</version></dependency><!-- Flink Kafka Connector --><dependency><groupId>org.apache.flink</groupId><artifactId>flink-connector-kafka_2.12</artifactId><version>1.15.0</version></dependency><!-- Flink MySQL Connector --><dependency><groupId>org.apache