修改package.xml。。。插件打包的时候改成 编译后的目录，此时环境变量已经替换为值。

<fileSet>

<directory>${project.build.directory}/classes</directory>

<includes>

<include>sql</include>

<include>*.properties</include>

<include>*.xml</include>

<include>*.txt</include>

</includes>

<outputDirectory>config</outputDirectory>

</fileSet>

修改maven pom

<resources>

    <resource>

        <directory>src/main/resources</directory>

        <excludes>

            <exclude>config.properties</exclude>

            <exclude>undertow.txt</exclude>

        </excludes>

    </resource>

    <resource>

        <directory>src/main/resources</directory>

        <includes>

            <include>config.properties</include>

            <include>undertow.txt</include>

        </includes>

        <filtering>true</filtering>

    </resource>

</resources>

多环境配置 请自行查看资料

<!-- 多环境配置 -->

<profiles>

    <!-- 测试 -->

    <profile>

        <id>dev8880</id>

        <activation>

            <activeByDefault>true</activeByDefault>

        </activation>

        <properties>

            <!-- config.properties start -->

            <jdbc.user>root</jdbc.user>

            <jdbc.driver>com.mysql.jdbc.Driver</jdbc.driver>

        </properties>

    </profile>

</profiles>