dynamic web module 3.0 requires 1.6

can not change version web model 3.0
解决1
http://blog.csdn.net/steveguoshao/article/details/38414145

解决2
在pom。xml中加入如下 1.8是你使用的jdk版本

  <build>    <finalName>MyBatis</finalName>      <plugins>       <plugin>        <groupId>org.apache.maven.plugins</groupId>        <artifactId>maven-compiler-plugin</artifactId>          <version>3.1</version>         <configuration>              <source>1.8</source>              <target>1.8</target>         </configuration>      </plugin>    </plugins>  </build></project>