1. Setting配置

 https://img-blog.csdnimg.cn/20190130074957954.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpaG9uZ3Fpbmc2MV8=,size_16,color_FFFFFF,t_70

2. Registry 
ctrl+alt+shift+’/’ 
弹出框选择如下，勾选即可

https://img-blog.csdnimg.cn/20190130075032335.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpaG9uZ3Fpbmc2MV8=,size_16,color_FFFFFF,t_70

3. 修改配置文件

spring:
  thymeleaf:
    cache: false        # 禁用缓存
    mode: LEGACYHTML5   # 非严格型检查 默认是html 严格检查

4. 如果还未生效 手动 Ctrl + F9 重新编译即可