Spring Junit单元测试加载配置文件失败问题

<build>
  <finalName>demo1</finalName>

  <resources>
   <resource>
    <directory>src/main/resources</directory>
    <filtering>true</filtering>
    <includes>
     <include>**/*.*</include>
    </includes>
   </resource>
  </resources>
  <!--单元测试时引用src/main/resources下的资源文件-->
  <testResources>
   <testResource>
    <directory>src/test/resources</directory>
   </testResource>
   <testResource>
    <directory>src/main/resources</directory>
   </testResource>
  </testResources>
</build>