Maven pom.xml的properties配置以及编译参数设置

<properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
  <maven.compiler.encoding>UTF-8</maven.compiler.encoding>
  <java.version>21</java.version>
  <maven.compiler.source>21</maven.compiler.source>
  <maven.compiler.target>21</maven.compiler.target>
</properties>

 

然后要添加maven编译插件配置：

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.8.1</version>
    <configuration>
        <source>21</source>
        <target>21</target>
        
        <compilerArgs>
            <!-- 开启预览功能，执行的时候也需要指定：java -jar --enable-preview aaa.jar -->
            <arg>--enable-preview</arg>
            <arg>-parameters</arg>
        </compilerArgs>

    </configuration>
</plugin>