The method getStudent(Integer) of type StudentServiceImpl must override a superclass method (报错)

今天敲代码的时候,在实现接口的时候,遇到这样的错,
The method getStudent(Integer) of type StudentServiceImpl must override a superclass method
解决方法:修改eclipse的jdk版本
具体步骤:
右键项目----》选择Build Path----->选择最后一项(Configure Build Path)----->Libraries----->双击JRE System Library----》选择JavaSE-1.8(jre 1.8.0_13)
如下图
The method getStudent(Integer) of type StudentServiceImpl must override a superclass method (报错)