Spring RESTful Date format - json

Question

A rest controller in jdk8 like this
#Transactional
#RequestMapping(value="/A", method = RequestMethod.POST)
public ABean aInsert(final java.sql.Date when, final long company) {
A bean = new A();
bean.setWhen(when);
bean.setCompany(entityManager.find(Company.class, company));
entityManager.persist(bean);
return new ABean(bean.getId(), bean.getVersion(), bean.getWhen(), bean.getCompany().getId());
}
is called with form post-data
when=1459987200000&company=1
but can not be called and returns a 400 - bad request
(description The request sent by the client was syntactically incorrect.).
My question is:
What is the default input string format of the java.sql.date?

Answer 1

when=2016-04-21&company=10 Works, so its
yyyy-mm-dd
For every other format register a custom Converter like this:
#Autowired
private final ConfigurableConversionService conversionService=null;
#PostConstruct
public void registerConverter() {
conversionService.addConverter(new Converter<String, Long>() {
#Override
public Long convert(String source) {
try {
SimpleDateFormat df = new SimpleDateFormat("yyyy-mm-dd'T'hh:mm");
return df.parse(source).getTime();
} catch (ParseException e) {
return Long.parseLong(source);
}
}
});
}