Annotated a class with @Configuration and @Controller. Need help in refactoring

Question

Below is my class in which i had to use both @Configuration and @Controller as there should be only one instance of Thymeleaf in the e

Answer 1

Assuming you're using Spring Boot, since you have it in tags, you do not need any configuration to use Thymeleaf.

By just having this dependency, you can:

@GetMapping("/view-template")
public String viewTemplates(Model model) {
    model.addAttribute("mydata", "this is it")
    return "view-to-process";
}

And it should work.

By the way, yes, having @Configuration and @Controller in the same class is something you should never need.