pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
                             http://maven.apache.org/xsd/maven-4.0.0.xsd">

  <!-- 基本坐标 -->
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.example</groupId>
  <artifactId>simple-maven-project</artifactId>
  <version>1.0-SNAPSHOT</version>

  <!-- 指定 Java 版本 -->
  <properties>
    <!-- 使用 Java 9，以支持接口中的 private 方法 -->
    <maven.compiler.source>9</maven.compiler.source>
    <maven.compiler.target>9</maven.compiler.target>
    <!-- 推荐使用 release 模式，自动设置 source/target -->
    <maven.compiler.release>9</maven.compiler.release>
  </properties>

  <!-- 添加依赖 -->
  <dependencies>
    <!-- Apache Commons Lang3，用于 Pair 等工具类 -->
    <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-lang3</artifactId>
      <version>3.12.0</version>
    </dependency>
    <dependency>
      <groupId>javax.persistence</groupId>
      <artifactId>javax.persistence-api</artifactId>
      <version>2.2</version>
    </dependency>
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-core</artifactId>
      <version>5.6.14.Final</version>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.32</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.36</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-simple</artifactId>
      <version>1.7.36</version>
    </dependency>
    <!-- QueryDSL -->
    <dependency>
      <groupId>com.querydsl</groupId>
      <artifactId>querydsl-jpa</artifactId>
      <version>4.4.0</version>
    </dependency>
    <dependency>
      <groupId>com.querydsl</groupId>
      <artifactId>querydsl-apt</artifactId>
      <version>4.4.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>com.querydsl</groupId>
      <artifactId>querydsl-jpa</artifactId>
      <version>5.0.0</version>
    </dependency>
    <dependency>
      <groupId>com.querydsl</groupId>
      <artifactId>querydsl-apt</artifactId>
      <version>5.0.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.annotation</groupId>
      <artifactId>javax.annotation-api</artifactId>
      <version>1.3.2</version>
    </dependency>
  </dependencies>

  <!-- 构建配置 -->
  <build>
    <plugins>
      <!-- 编译插件，设定 Java 9 编译 -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.1</version>
        <configuration>
          <release>9</release>
          <compilerArgs>
            <arg>--add-modules</arg>
            <arg>java.xml.ws.annotation</arg>
          </compilerArgs>
          <annotationProcessorPaths>
            <path>
              <groupId>com.querydsl</groupId>
              <artifactId>querydsl-apt</artifactId>
              <version>4.4.0</version>
            </path>
            <path>
              <groupId>com.querydsl</groupId>
              <artifactId>querydsl-apt</artifactId>
              <version>5.0.0</version>
              <classifier>jpa</classifier>
            </path>
            <path>
              <groupId>com.querydsl</groupId>
              <artifactId>querydsl-jpa</artifactId>
              <version>5.0.0</version>
            </path>
            <path>
              <groupId>javax.annotation</groupId>
              <artifactId>javax.annotation-api</artifactId>
              <version>1.3.2</version>
            </path>
          </annotationProcessorPaths>
          <generatedSourcesDirectory>${project.build.directory}/generated-sources/java</generatedSourcesDirectory>
        </configuration>
      </plugin>
      <!-- 执行插件，方便 mvn exec:java 直接运行 -->
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>exec-maven-plugin</artifactId>
        <version>3.1.0</version>
        <configuration>
          <mainClass>api.ApiMain</mainClass>
        </configuration>
      </plugin>
      <plugin>
        <groupId>com.mysema.maven</groupId>
        <artifactId>apt-maven-plugin</artifactId>
        <version>1.1.3</version>
        <executions>
          <execution>
            <goals>
              <goal>process</goal>
            </goals>
            <configuration>
              <outputDirectory>${project.build.directory}/generated-sources/java</outputDirectory>
              <processor>com.querydsl.apt.jpa.JPAAnnotationProcessor</processor>
            </configuration>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>

</project>