SpringBoot2.X启动报错Could not resolve placeholder 'xxl.job.admin.address'

解决思路

想单独构建一个工程，依赖xxl-job的核心包做一个JOB任务服务，并且需要支持分环境打包，application.yml中配置为：
profiles:
active: @profileActive@

同时pom.xml文件中，标签下添加如下配置代码：

<build>
<finalName>${artifactId}</finalName><resources><resource><directory>src/main/resources</directory><filtering>true</filtering><excludes><exclude>application-prod.yml</exclude><exclude>application-dev.yml</exclude><exclude>application-test.yml</exclude></excludes></resource><!--需要动态添加的资源--><resource><directory>src/main/resources</directory><filtering>true</filtering><includes><!--读取打包命令中指定的环境--><include>application-${profileActive}.yml</include><include>application.yml</include></includes></resource></resources></build>

== 再次启动，结果还是报错！！！！==

继续在pom.xml文件中新增配置如下：默认为dev配置文件，可以实现动态分环境打包：

<profiles><profile><id>dev</id><properties><profileActive>dev</profileActive></properties><activation><!--指定默认激活--><activeByDefault>true</activeByDefault></activation></profile><profile><id>test</id><properties><profileActive>test</profileActive></properties></profile><profile><id>prod</id><properties><profileActive>prod</profileActive></properties></profile></profiles>