New springboot jump page 404 Problem

Maven project downloaded from Start.spring.io, feature Select Web, deploy to local after controller breakpoint can hit, but after Retrun prompt 404, and background print an error log

 for  This false

Workaround

POM.XM Introduction

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

Just fine.

New springboot jump page 404 Problem