Recipe 24.10 Formatting Currencies in a JSP


You want to format currency values in a JSP.


Use the JSTL tag fmt:formatNumber .


The fmt:formatNumber tag is designed to display a currency value based on the visitor's locale. Example 24-11 first uses the taglib directive to make the JSTL 1.0 formatting library available to the JSP.

Example 24-11. formatting a number using the JSTL 1.0 tags
  <%@ taglib uri="" prefix="c" %> <%-- the formatting library includes fmt:formatNumber --%> <%@ taglib uri="" prefix="fmt" %>  <html> <head><title> <fmt:message key="Welcome" /></title></head> <body> <h2> <fmt:message key="Hello" /> <fmt:message key="and" /> <fmt:message key="Welcome" /></ h2> Locale: <c:out value="${pageContext.request.locale.language}" />_<c:out  value="${}" />  <br /><br />  <fmt:formatNumber value="1000000" type="currency" />  </body> </html> 

The fmt:formatNumber tag is quite straightforward. The value attribute takes the number you want to format as a currency, and the value of the type attribute must be "currency." The text representing the formatted number then replaces the tag when a browser displays the JSP's output. The JSP in Example 24-11 displays the same browser information as shown in Figure 24-6 of the prior recipe.

See Also

Chapter 23 on the JSTL; the Javadoc for the NumberFormat class:; Recipe 24.9 on formatting currencies in a servlet.

Java Servlet & JSP Cookbook
Java Servlet & JSP Cookbook
ISBN: 0596005725
EAN: 2147483647
Year: 2004
Pages: 326 © 2008-2017.
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