Dynamic Web Module 3.0 requires Java 1.6 or newer

<build>
	<plugins>
		<!-- define the project compile level -->
		<plugin>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-compiler-plugin</artifactId>
			<version>3.3</version>
			<configuration>
				<source>1.8</source>
				<target>1.8</target>
			</configuration>
		</plugin>
	</plugins>
</build>

在pom中添加此段