错误信息:Exception processing template “/view/df”: Error resolving template “/view/df”, template might not exist or might not be accessible by any of the configured Template Resolvers
org.thymeleaf.exceptions.TemplateInputException: Error resolving template “/view/df”, template might not exist or might not be accessible by any of the configured Template Resolvers
错误描述:再开发环境下，访问不出错。打成jar包后运行出错，经过一番查看，最终找到原因。
特别说明该项目我是用的是Thymeleaf的th标签。
原因:在控制器中返回的视图路径如下，return “/view/df” 修改前,修改为return “view/df” 即可，然后再重新打包访问，问题解决了。该问题是由于路径的问题导致的。
参考博客:
https://blog.csdn.net/Lin_xiaofeng/article/details/79122053
https://blog.csdn.net/PubliclyAccessible/article/details/79726360
https://blog.csdn.net/u012613251/article/details/80304722