I used maven to do the tutorial https://spring.io/guides/gs/uploading-files/
All the codes I used was copied.
The Application can run, but I get the error:
Whitelabel Error Page This application has no explicit mapping for /error, so you are seeing this as a fallback. Tue Jun 30 17:24:02 CST 2015 There was an unexpected error (type=Not Found, status=404). No message available
How can I fix it?
Make sure that your main class is in a root package above other classes.
When you run a Spring Boot Application, (i.e. a class annotated with @SpringBootApplication), Spring will only scan the classes below your main class package.
com
+- APP
+- Application.java <--- your main class should be here, above your controller classes
|
+- model
| +- user.java
+- controller
+- UserController.java