springboot默認是不支持jsp的
注意pom.xml是否添加了thymeleaf的依賴
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
#thymelea模板配置 這是不必要填的 填在配置文件里面默認覆蓋
spring.thymeleaf.prefix=classpath:/templates/
spring.thymeleaf.suffix=.html spring.thymeleaf.mode=HTML5
spring.thymeleaf.encoding=UTF-8
spring.thymeleaf.content-type=text/html
spring.thymeleaf.cache=false
spring.resources.chain.strategy.content.enabled=true
spring.resources.chain.strategy.content.paths=/**