1.添加thymeleaf的jar包依赖
<!-- thymeleaf -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
<exclusions>
<exclusion>
<artifactId>slf4j-api</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>2.在html添加命名空间
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">3.设置properties文件
#THYMELEAF (ThymeleafAutoConfiguration)
#spring.thymeleaf.check-template-location=true
#spring.thymeleaf.prefix=classpath:/templates/
#spring.thymeleaf.excluded-view-names=
spring.thymeleaf.mode=HTML5
spring.thymeleaf.encoding=UTF-8
spring.thymeleaf.content-type=text/html
spring.thymeleaf.cache=true具体使用前面有个介绍
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引用来自“StateGrace”的评论
这个坑比较多，看你这配置，你试试标签不闭合绝对报错