<resources>
        <!--将resources目录下的配置文件编译进classes文件  -->
        <resource>
            <directory>src/main/resources</directory>
        </resource>
    </resources>
</build>

spring.thymeleaf.content-type=text/html 
spring.thymeleaf.cache=false 
spring.thymeleaf.mode =LEGACYHTML5