Let's say I have in my RestController
@GetMapping("/")
public list(@RequestParam LocalDateTime date) {
}
and I make a GET request with date request param as unix timestamp like this:
http://myserver.com/?date=1504036215944
How do I make Spring Boot and jackson to use the correct conversion from unix timestamp to LocalDateTime automatically without manually doing the conversion.
A solution:
@GetMapping("/")
public @ResponseBody String list(TimestampRequestParam date) {
return date.toString();
}
Implementing the time stamp to date converter in setDate
pay attention that the getter & setter must have the parameter name ( the class member can have different name )
class TimestampRequestParam {
private Date date; // member name doesn't need to be like request parameter
private static final SimpleDateFormat FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.S");
public Timestamp2DateExample() { }
// must have the same name as the request param
public Date getDate() {
return date;
}
/**
* @param timestamp
* here we convert timestamp to Date, method name must be same as request parameter
*/
public void setDate(String timestamp) {
long longParse = Long.parseLong(timestamp);
this.date = new Date(longParse);
}
@Override
public String toString() {
return "timestamp2date : " + FORMAT.format(date);
}
}
Output example (pay attention to the port, you might configured differently)
$ curl localhost:8080?date=1504036215944
timestamp2date : 2017-08-29 22:50:15.944
