how to set defaultLocale programmatically in spring boot

Question

I am following this guide for spring internationalization it implements LocalResolver like this

@Bean
public LocaleResolver localeResolver() {
    SessionLocaleResolver sessionLocaleResolver = new SessionLocaleResolver();
    sessionLocaleResolver.setDefaultLocale(Locale.US);
    return sessionLocaleResolver;
}

but I want to set defaultLocal by getting user language information in database and set it how can I do that? thanks for help

Answer 1

I think you want to set the Locale for the current session, not the default Locale. Assuming there is an existing session (i.e. after user login):

Autowire LocaleResolver, HttpServletRequest and HttpServletResponse and use the LocaleResolver.setLocale method:

    Locale userLocale = getLocaleByUsername(username); //load from DB
    localeResolver.setLocale(httpServletRequest, httpServletResponse, userLocale);

This will set the Locale for the current session.