[FIXED] Create a named bean of type `java.lang.String` with request scoping in Spring MVC

Issue

I have config class SpecialEventsConfig.

I am trying to initialise a request Scoped bean of type String.

---

    @Bean("requestTime")
    public String getRequestTime() {
        return String.valueOf(System.nanoTime());
    }

This works, but it will initialise a singleton. I want to use this to initialise a String for the request scope.

---

    @Bean("requestTime")
    @RequestScope(proxyMode = ScopedProxyMode.TARGET_CLASS)// Tried NO and INTERFACES as well
    public String getRequestTime() {
        return String.valueOf(System.nanoTime());
    }

This could solve my problem, but unfortunately it doesn't work.

---

Is there a way to achieve such behaviour?

Solution

I think you could try this workaround.

@Bean("requestTime")
@RequestScope(proxyMode = ScopedProxyMode.TARGET_CLASS)
public Supplier<String> getRequestTime() {
    long time = System.nanoTime();
    return () -> String.valueOf(time);
}

Answered By - Semyon Kirekov