#thymeleaf

spring.thymeleaf.prefix=classpath:/templates/

spring.thymeleaf.suffix=.html

spring.thymeleaf.cache=false

spring.thymeleaf.content-type=text/html

spring.thymeleaf.enabled=true

spring.thymeleaf.encoding=UTF-8

spring.thymeleaf.mode=HTML5

解决办法：注释掉

#spring.thymeleaf.mode=HTML5