use system properties in spring

applicationContext.xml

<beans>

  <context:property-placeholder
    location="classpath*:config-${my.env}.properties"
    order="1"
    ignore-unresolvable="true"
    />
</beans>

memo.txt

5.10. プロパティ管理 — TERASOLUNA Global Framework Development Guideline 1.0.0.publicreview documentation
https://terasolunaorg.github.io/guideline/public_review/ArchitectureInDetail/PropertyManagement.html

6 Tips for Managing Property Files with Spring
http://www.summa.com/blog/2009/04/20/6-tips-for-managing-property-files-with-spring

pom.xml

       <plugin>
        <groupId>org.apache.tomcat.maven</groupId>
        <artifactId>tomcat7-maven-plugin</artifactId>
        <version>2.2</version>
        <configuration>
          <path>/app</path>
          <systemProperties>
            <my.env>dev</my.env>
          </systemProperties>
        </configuration>
      </plugin>