1.点击:Help->Install New Software
2.点击add添加
name:Kepler
location:http://download.eclipse.org/releases/kepler
3.等待底下出现信息勾选:Web,XML, Java EE and OSGi Enterprise Development
4.一直点击next,最后完成。
转至:https://blog.csdn.net/m0_37872413/article/details/83450820