Cofigure Spring type conversion to use ISO-8601 format for dates

DateTimeFormatConfigurer.java

import org.springframework.format.FormatterRegistry;
import org.springframework.format.datetime.standard.DateTimeFormatterRegistrar;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/**
 * Override date/time formatters with ones using ISO-8601.
 */
@Component
public class DateTimeFormatConfigurer implements WebMvcConfigurer {

    @Override
    public void addFormatters(FormatterRegistry registry) {
        DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
        registrar.setUseIsoFormat(true);
        registrar.registerFormatters(registry);
    }
}