如何在 Java Spring 引导中为 BigDecimal 保留小数点后的零？

Question

I have some BigDecimal values in database, like 10000.00, 12357.87 etc.

Now I'm trying to get these values by using GET API REST in spring boot, but here the problem is in Swagger or Postman response I see like:

"amount":"10000.00"

but I want value without quotes "amount": 10000.00

Response class:

public class ResponseDTO{
  @JsonFormat(shape = JsonFormat.Shape.STRING)
  private BigDecimal amount;
}

If I removed @JsonFormat(shape = JsonFormat.Shape.STRING) annotation it will shown as "amount":10000

Answer 1

You can set "scale" value of amount as 2.

Try something like this;

instead of responsedto.setAmount(amount) use responsedto.setAmount(amount.setScale(2))

With this you don't need to use @JsonFormat annotation.