ssm+maven 出现找不到mapper的异常

<!-- 如果不添加此节点mybatis的mapper.xml文件都会被漏掉 -->

  <build>

  <resources>

  <resource>

  <directory>src/main/java</directory>

  <includes>

  <include>**/*.properties</include>

  <include>**/*.xml</include>

  </includes>

  <filtering>false</filtering>

  </resource>

  </resources>
  </build>

service层调mapper内部方法时会出现找不到mapper的异常。