解决办法：
1: <plugin>
2: <groupId>org.apache.maven.plugins</groupId>
3: <artifactId>maven-compiler-plugin</artifactId>
4: <version>2.0.2</version>
5: <configuration>
6: <source>1.6</source>
7: <target>1.6</target>
8:
<encoding>UTF-8</encoding>
9: </configuration>
10: </plugin>