每日日报2021 9/20

今天我顺便学习了idea，知道了原来可以直接加依赖就可以编程。太方便了。这是想要连接mapreduce的依赖群体。

<dependencies>

<dependency>

<groupId>org.apache.hadoop</groupId>

<artifactId>hadoop-client</artifactId>

<version>3.1.3</version>

</dependency>

<dependency>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

<version>4.12</version>

</dependency>

<dependency>

<groupId>org.slf4j</groupId>

<artifactId>slf4j-log4j12</artifactId>

<version>1.7.30</version>

</dependency>

</dependencies>