解决方案:
在pom.xml中添加下面内容即可,同时也可以解决Maven->update project默认jdk的问题
<profiles> <profile> <id>jdk-1.7</id> <!-- 另外一种激活方式 --> <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> </profiles>
<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin>