1.idea的settings、project structure中设置
2.在pom.xml文件中引入
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<scala.compat.version>2.10</scala.compat.version>
<!--编译时的编码-->
<maven.compiler.encoding>UTF-8</maven.compiler.encoding>
<!--文件拷贝时的编码-->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>