在自定义文件中启用maven内置变量，需要额外处理

pom.xml

这些配置是可继承的，如果是多模块项目，放到父工程即可
<resources>
    <resource>
        <directory>src/main/resources</directory>
        <filtering>true</filtering>
        <includes>
            <include>**/*</include>
        </includes>
    </resource>
    <resource>
        <directory>src/main/java</directory>
        <includes>
            <include>**/*.xml</include>
        </includes>
    </resource>
</resources>
<plugins>
    <plugin>
        <artifactId>maven-resources-plugin</artifactId>
        <configuration>
            <encoding>utf-8</encoding>
            <useDefaultDelimiters>true</useDefaultDelimiters>
        </configuration>
    </plugin>
</plugins>