Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Exception parsing document: template="xxxxxxxxl", line 17 - column 5

生成的标签没有闭合  

Thymeleaf模板引擎，遇到不闭合标签会报这个错误，补全标签或者

解决方案：

1. 添加maven依赖

<dependency>
    <groupId>net.sourceforge.nekohtml</groupId>
    <artifactId>nekohtml</artifactId>
    <version>1.9.22</version>
</dependency>

2. 更改application.Properties属性

spring.thymeleaf.mode=LEGACYHTML5