How to get object field value with custom annotation?

Question

Java

There is such a class:

public class SomeBean {
    public String email;
}

Using Spring MVC I create a mapped method:

@RequestMapping(value = "hello")
    public String someMethod(SomeBean myBean) {
    // do something
}

The task is this: I need to create my own annotation, with which I will mark the incoming parameter ' myBean ' and extract the value of the email field . Tell me how to do it? With the help of reflection, it is impossible to get a value, as I understand it. How to be in this case?

Answer 1

org.springframework.util.ReflectionUtils#getField