在Java中从BigDecimal移除尾随零

用

toPlainString()

BigDecimal d = new BigDecimal("600.0").setScale(2, RoundingMode.HALF_UP).stripTrailingZeros();System.out.println(d.toPlainString()); // Printed 600 for me

我还没有进入JSF，但转换器可能看起来像这样：

@FacesConverter("bigDecimalPlainDisplay")public class BigDecimalDisplayConverter implements Converter {    @Override    public Object getAsObject(FacesContext context, UIComponent component, String value) {        throw new BigDecimal(value);    }    @Override    public String getAsString(FacesContext context, UIComponent component, Object value) {        BigDecimal  bd = (BigDecimal)value;        return bd.setScale(2, RoundingMode.HALF_UP).stripTrailingZeros().toPlainString();    }}

然后在xhtml中：

<h:inputText id="bigDecimalView" value="#{bigDecimalObject}"     size="20" required="true" label="Value">    <f:converter converterId="bigDecimalPlainDisplay" /></h:inputText>