Whitelabel Error Page There was an unexpected error (type=Not Found, status=404). No message availab

我出现这个问题，找了好多，都没解决，最后发现配置错了，pom.xml中的依赖引入错了，html出现不了，应该引入的是

<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-thymeleaf -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-thymeleaf</artifactId>
    <version>2.1.2.RELEASE</version>
</dependency>