确保为Thymeleaf添加以下依赖项：
<dependency> <groupId>org.thymeleaf.extras</groupId> <artifactId>thymeleaf-extras-springsecurity4</artifactId> <version>2.1.2.RELEASE</version> <scope>compile</scope></dependency>
还要确保将其添加到
<html>
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4"
我也不认为这
Set<IDialect>是必要的（如果我错了，请纠正我），您可以将其编写为：
Beanpublic SpringTemplateEngine templateEngine() { SpringTemplateEngine engine = new SpringTemplateEngine(); engine.setTemplateResolver(templateResolver()); engine.addDialect(new SpringSecurityDialect()); return engine;}
