[ERROR] Source option 7 is no longer supported. Please use version 8 or higher

[ERROR] Source option 7 is no longer supported. Please use version 8 or higher

solution

Add in the pom.xml file

  <build>
    <plugins>
      <!--jdk编译插件-->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.0</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
          <encoding>utf-8</encoding>
        </configuration>
      </plugin>
    </plugins>
  </build>

<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.encoding>UTF-8</maven.compiler.encoding>
        <java.version>1.8</java.version>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
 </properties>