SprngBoot异常:This application has no explicit mapping for /error, so you are seeing this as a fallback. SprngBoot异常:This application has no explicit mapping for /error, so you are seeing this as a fallback. 这个问题是因为你用了Spring1.x的写法写了项目的访问路径 2.X的版本不能识别这个路径 写成这样就好了