<c:choose>标签与Java switch语句的功能一样,用于在众多选项中做出选择。switch语句中有case,而<c:choose>标签中对应有<c:when>,switch语句中有default,而<c:choose>标签中有<c:otherwise>。
属性 | 描述 | 是否必要 | 默认值 |
---|---|---|---|
test | 条件 | 是 | 无 |
- <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
- <html>
- <head>
- <title>c:choose 标签实例</title>
- </head>
- <body>
- <c:set var="salary" scope="session" value="${2000*2}"/>
- <p>Your salary is : <c:out value="${salary}"/></p>
- <c:choose>
- <c:when test="${salary <= 0}">
- Salary is very low to survive.
- </c:when>
- <c:when test="${salary > 1000}">
- Salary is very good.
- </c:when>
- <c:otherwise>
- No comment sir...
- </c:otherwise>
- </c:choose>
- </body>
- </html>
运行结果如下:
- Your salary is : 4000
- Salary is very good.