------------------网摘，仅供本人学习-----------------

那么解决方式就是在编译时指定这些外部包的位置

pom.xml文件中加入配置

 <plugin>
     <artifactId>maven-compiler-plugin</artifactId>                                                              
                <configuration>                  
                     <source>1.7</source>                                      
                     <target>1.7</target>
                     <encoding>UTF-8</encoding>
                      <compilerArguments>           
                        <extdirs>lib</extdirs>
                     </compilerArguments>
                </configuration>
              </plugin>