环境: 环境变量JAVA_HOME配置jdk1.8
idea配置支持lambda:
File -> Project Structure -> Modules -> Language level, 选择: 8-Lambdas, type annotations etc.
File -> Project Structure -> Project -> Project language level, 选择: 8-Lambdas, type annotations etc.
pom文件中对编译器的配置:
<build>
<finalName>spark.hadoop.study</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>