关于多模块合并

<modules>
    <module>hd-common</module>
    <module>hd-admin</module>
    <module>hd-web</module>
</modules>

hd-admin合并到hd-web打成一个war包，其它正常，就是配置在hd-admin里面的过滤器不起作用了，哪出问题了呢？

<artifactId>hd-web</artifactId>
<packaging>war</packaging>
<name>hd-web Maven Webapp</name>

<dependencies>
    <dependency>
        <groupId>com.imooc</groupId>
        <artifactId>hd-common</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>com.imooc</groupId>
        <artifactId>hd-admin</artifactId>
        <version>1.0-SNAPSHOT</version>
        <type>war</type>
    </dependency>
</dependencies>
<build>
    <finalName>hd-web</finalName>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            <version>3.0.0</version>
            <configuration>
                <packagingExcludes>WEB-INF/web.xml</packagingExcludes>
                <overlays>
                    <overlay>
                        <groupId>com.imooc</groupId>
                        <artifactId>hd-admin</artifactId>
                    </overlay>
                </overlays>
            </configuration>
        </plugin>
    </plugins>
</build>