Spring MVC Controller NumberFormat Annotation Pattern Issue in BigDecimal

Question

I have a spring controller which is taking multiple BigDecimal RequestParams.

My application locale is en_US but just for this controller method I need to

Answer 1

You can use PropertyEditorSupport to handle the form input as follows:

Create class extending PropertyEditorSupport to convert String received from client to BigDecimal, for example:

import java.beans.PropertyEditorSupport;
import java.math.BigDecimal;
import java.text.NumberFormat;
import java.text.ParseException;
import java.util.Locale;

public class BigDecimalEditor extends PropertyEditorSupport {

    public void setAsText(String text) {
        NumberFormat formatter = NumberFormat.getNumberInstance(Locale.GERMAN);
        try {
            Number number = formatter.parse(text);
            BigDecimal bigDecimal = BigDecimal.valueOf(number.doubleValue());
            setValue(bigDecimal);
        } catch (ParseException e) {
            // handle exception here
        }
    }
}

And bind it with the controller, as:

@RestController
@RequestMapping(value = "/employee")
public class EmployeeController {

    @InitBinder
    public void initBinder(WebDataBinder binder) {
        binder.registerCustomEditor(BigDecimal.class, new BigDecimalEditor());
    }

    @RequestMapping(value = "/create", method = RequestMethod.POST)
    public ModelAndView create(
            @RequestParam("amount") @NumberFormat(pattern = "#.###,##") BigDecimal amount) {
        System.out.println(amount);
        return new ModelAndView();
    }
}

Answer 2

I solved my problem with: @RequestParam(value="amount1", required=false) @NumberFormat(pattern="#0,00") BigDecimal amount1