看不懂spring-boot-starter-parent:2.0.2.RELEASE.pom

Question

spring-boot-starter-parent:2.0.2.RELEASE.pom里面有如下一段。看不懂有什么作用，首先filtering，然后excluses不就等于全部资源都包含进去了吗？感觉毫无用处，为啥要这样写？<build>
    <resources>
        <resource>
            <filtering>true</filtering>
            <directory>${basedir}/src/main/resources</directory>
            <includes>
                <include>**/application*.yml</include>
                <include>**/application*.yaml</include>
                <include>**/application*.properties</include>
            </includes>
        </resource>
        <resource>
            <directory>${basedir}/src/main/resources</directory>
            <excludes>
                <exclude>**/application*.yml</exclude>
                <exclude>**/application*.yaml</exclude>
                <exclude>**/application*.properties</exclude>
            </excludes>
        </resource>
    </resources>

Answer 1

<filtering>true</filtering>是加在include里的吧？

Answer 2

参考
https://stackoverflow.com/questions/34749819/maven-resource-filtering-exclude/34750851

Answer 3

源码就是这样的，直接copy的。不会错