改变springboot属性文件分隔符

If you inherit from the spring-boot-starter-parent POM, the default filter token of the maven-resources-plugins has been changed from ${*} to @ (that is, @[e-mail] instead of ${maven.token}) to prevent conflicts with Spring-style placeholders. If you have enabled Maven filtering for the application.properties directly, you may want to also change the default filter token to use other delimiters.

如果引入spring-boot-starter-parent，默认需要使用  @****@

如果不引入spring-boot-starter-parent，You also need to include the following element inside <plugins/>:

<plugin>     
    <groupId>org.apache.maven.plugins</groupId> 
    <artifactId>maven-resources-plugin</artifactId>
    <version>2.7</version>     
    <configuration>         
     <delimiters>             
       <delimiter>@</delimiter>
     </delimiters>         
     <useDefaultDelimiters>false</useDefaultDelimiters>
    </configuration>
 </plugin>

The useDefaultDelimiters property is important if you use standard Spring placeholders (such as ${placeholder}) in your configuration. If that property is not set to false, these may be expanded by the build

server.port=${port:8080}

解决方案：

    1：将application.properties中的占位符由${key} -> @[e-mail] 

    2：覆盖springboot的默认规则

    

    3：测试了再自己的pom中不增加resource配置，只是增加

作者：0爱上1
链接：https://www.jianshu.com/p/929b9aa70dc8
来源：简书
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