Whitelabel Error Page This application has no explicit mapping for /error, so you are seeing this as a fallback. Mon Jan 22 09:30:31 CST 2018 There was an unexpected error (type=Not Found, status=404). No message available
网址Url 输错了，
我的具体如下
http://localhost:8080/items/home_item
去掉里面的s就正常了
http://localhost:8080/item/home_item