IDEA 自动重置项目的LanguageLevel

http://blog.csdn.net/isea533/article/details/48575983

 

http://www.cnblogs.com/softlin/p/4395799.html?utm_source=tuicool&utm_medium=referral

 

pom.xml

<properties>
       <maven.compiler.source>1.8</maven.compiler.source>
       <maven.compiler.target>1.8</maven.compiler.target>
</properties>

 

或者修改Maven的Settings.xml文件添加如下内容

<profile>
	<id>jdk-1.7</id>
	<activation>
		<activeByDefault>true</activeByDefault>
		<jdk>1.7</jdk>
	</activation>
	<properties>
		<maven.compiler.source>1.7</maven.compiler.source>
		<maven.compiler.target>1.7</maven.compiler.target>
		<maven.compiler.compilerVersion>1.7</maven.compiler.compilerVersion> 
	</properties>
</profile>