1、打开网站
https://wiki.eclipse.org/WTP_FAQ#How_do_I_install_WTP.3F
2、下拉随便找一个版本
3、点进去复制上面的链接
https://download.eclipse.org/releases/2020-12/
4、打开eclipse或者STS
help --> install new software
https://wiki.eclipse.org/WTP_FAQ#How_do_I_install_WTP.3F
https://download.eclipse.org/releases/2020-12/
help --> install new software