Spring boot does not use the Thymeleaf template to pass the response path within a variable control without using @getpaing annotations

A strange thing happened today:

In the Springboot control class, the response path "/hello" uses @requestmapping annotations to be accessed normally.

@RequestMapping (value = "/hello", method = requestmethod.get) public    String Hello (model model) {        Model.addattribute ("name", "Dear");        return "Hello";    }

Shown below:

However, if you add another response path to the same type using the @getmapping annotation, the access error will be raised.

There are 2 response paths in a control that point to the same template, which I found to be the reason, but why? Ask the great gods to answer them?

Spring boot does not use the Thymeleaf template to pass the response path within a variable control without using @getpaing annotations