出现There was an unexpected error (type=Internal Server Error, status=500).

在运行springboot中发现这种错误。

There was an unexpected error (type=Internal Server Error, status=500).
Authentication failed for token submission [org.apache.shiro.authc.UsernamePasswordToken - null, rememberMe=false]. Possible unexpected error? (Typical or expected login exceptions should extend from AuthenticationException).

搞得我重新写了一遍，发现是Maven导致的，Thymeleaf依赖添加错了
可能是我写着写着，@{}没用正确，就从网上拿了个，拿错了，
原依赖是这个

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

结果我拿了这个

<!-- https://mvnrepository.com/artifact/org.thymeleaf/thymeleaf -->
<dependency>
    <groupId>org.thymeleaf</groupId>
    <artifactId>thymeleaf</artifactId>
    <version>3.0.12.RELEASE</version>
</dependency>

失策啊失策。