【SpringBoot】引入thymeleaf无法启动SpringBoot

参考多篇文章：引入thymeleaf时没有报错，但就是无法运行SpringBoot

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>

    <properties>
        <java.version>1.8</java.version>
        <!-- thymeleaf 版本  -->
        <thymeleaf.version>3.0.9.RELEASE</thymeleaf.version>
        <!-- 布局功能的支持程序 thymeleaf3主程序 layout2以上版本 -->
        <thymeleaf-layout-dialect.version>2.1.1</thymeleaf-layout-dialect.version>
    </properties>

大致问题可以归结于版本的问题<thymeleaf.version>3.0.9.RELEASE</thymeleaf.version>
需要改为：<thymeleaf.version>3.1.1.RELEASE</thymeleaf.version>
然后重新刷新一下：


等待最下方进度条走完，在重新启动SpringBoot，即可正常运行。

2021-11-12 10:23:37.215  INFO 10952 --- [           main] com.atguigu.springboot.Application       : No active profile set, falling back to default profiles: default
2021-11-12 10:23:38.113  INFO 10952 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2021-11-12 10:23:38.123  INFO 10952 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2021-11-12 10:23:38.123  INFO 10952 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.54]
2021-11-12 10:23:38.224  INFO 10952 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2021-11-12 10:23:38.224  INFO 10952 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 964 ms
2021-11-12 10:23:38.490  INFO 10952 --- [           main] o.s.b.a.w.s.WelcomePageHandlerMapping    : Adding welcome page: class path resource [public/index.html]
2021-11-12 10:23:38.595  INFO 10952 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2021-11-12 10:23:38.603  INFO 10952 --- [           main] com.atguigu.springboot.Application       : Started Application in 1.809 seconds (JVM running for 2.891)