您应该尝试将 utf 添加到 thymeleaf 视图解析器:

You should try to add utf to thymeleaf view resolver:

Bean
public ThymeleafViewResolver viewResolver() {
    ThymeleafViewResolver thymeleafViewResolver = new ThymeleafViewResolver();
    thymeleafViewResolver.setTemplateEngine(templateEngine());
    thymeleafViewResolver.setCharacterEncoding("UTF-8");
    return thymeleafViewResolver;
}