参考
https://blog.csdn.net/xiangyuenacha/article/details/82287123
1. https://spring.io/tools3/sts/all 最新
2. 老版本： https://spring.io/tools3/sts/legacy
由于我是 eclipse photon，版本为 4.8
下载这个：
我下载下来，安装会报错，因此我在线安装
装完：会有这个：
Technically both are same spring project's. But they have some difference in configuration and build areas.
Spring Starter Project- Helps to create the spring boot project.(Spring Boot is basically an extension of the Spring framework which eliminated the boilerplate configurations required for setting up a Spring application.)
Spring Legacy Project - Helps to create the spring maven project. In which all the required configuration like servlet context,web,.. need to be configured manually either by using xml file or java classes.