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How to output jstl in if

(*-*)浩Original: 2019-05-20 16:36:533196browse

The if of JSTL is the tag, so how to output it? Let’s find out below.

Grammar format:

<c:if test="<boolean>" var="<string>" scope="<string>">
   ...</c:if>

Attributes

tag has the following attributes:

##AttributeDescriptionIs it necessaryDefault value test Condition is Nonevar#Variable used to store condition resultsNoNonescopeThe scope of the var attributeNopage

Example:

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<head>
<title>c:if 标签实例</title>
</head>
<body>
<c:set var="salary" scope="session" value="${2000*2}"/>
<c:if test="${salary > 2000}">
   <p>我的工资为: <c:out value="${salary}"/><p>
</c:if>
</body>
</html>

Result:

我的工资为: 4000

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