如何在JSP中格式化数字？
<FMT：formatNumber>标记用于格式数字，百分比，和货币。
属性
<FMT：formatNumber>标签具有以下属性-
示例
<%@ taglib prefix = "c" uri = "http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix = "fmt" uri = "http://java.sun.com/jsp/jstl/fmt" %>
<html>
<head>
<title>JSTL fmt:formatNumber Tag</title>
</head>
<body>
<h3>Number Format:</h3>
<c:set var = "balance" value = "120000.2309" />
<p>Formatted Number (1): <fmt:formatNumber value = "${balance}" type = "currency"/></p>
<p>Formatted Number (2): <fmt:formatNumber type = "number" maxIntegerDigits = "3" value = "${balance}" /></p>
<p>Formatted Number (3): <fmt:formatNumber type = "number" maxFractionDigits = "3" value = "${balance}" /></p>
<p>Formatted Number (4): <fmt:formatNumber type = "number" groupingUsed = "false" value = "${balance}" /></p>
</body>
</html>上面的代码将产生以下结果-
Number Format: Formatted Number (1): £120,000.23 Formatted Number (2): 000.231 Formatted Number (3): 120,000.231 Formatted Number (4): 120000.231