解决办法：往maven的pom.xml文件的<build>下添加以下内容，原因是在编译的时候默认没有添加xml文件，所以需要加
上以下内容
<resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> </resource> <resource> <directory>src/main/resources</directory> <includes> <include>**/*.*</include> </includes> </resource> </resources>