问题:Missing ‘tools.jar’-2020-4-3
Could not find ‘tools.jar’in the active JRE.
Spring Booot Live hovers will not work without it.
The JRE you are running Eclipse with is:
D:\Java
where we looked for’tool.jar’:
D:\lib\tools.jar
D:\Java\lib\tools.jar
我的解决是jdk1.8里没tools，所以下载进去即可
https://www.lanzous.com/iaypole