java - JSP 页面上带有十进制值的数字格式异常

Question

我在 JSP 页面上使用以下代码来显示以逗号格式化的成本，

   <%      java.util.Locale locale =  java.util.Locale.US;
  java.text.NumberFormat numberFormatter =       java.text.NumberFormat.getNumberInstance(locale);

    String specialChars = "..";

   Double d= Double.valueOf(cost);
   int cnvCost = d.intValue();

  %>


  <input id="test" class="form-control"  value="<%=numberFormatter.format(cnvCost) %>"   type="text" />  

但是对于十进制值，它会抛出异常 java.lang.NumberFormatException: For input string: "34876.98"

感谢您为解决此问题提供的任何帮助。

Answer 1

below code display result as you want.
<%
        java.util.Locale locale = java.util.Locale.US;
        java.text.NumberFormat numberFormatter = java.text.NumberFormat
                .getNumberInstance(locale);

        String specialChars = "..";
        String cost="34876.98";
        Double d = Double.valueOf(cost);
        int cnvCost = d.intValue();
    %>


    <input id="test" class="form-control"
        value="<%=numberFormatter.format(cnvCost)%>" type="text" />