在您的pom.xml文件中，只需从maven-compiler-plugin配置中删除标签<release>8</release>:

In your pom.xml file, simply remove the tag <release>8</release> from your maven-compiler-plugin configuration:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.7.0</version>
    <configuration>
        <source>1.8</source>
        <target>1.8</target>
        <verbose>true</verbose>
    </configuration>
</plugin>