初学JSTL,还没学EL,练习的时候遇到困难,大家给瞧瞧!
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>forEach</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
--> </head>
<body>
<%
String names[] = new String[4];
names[0]="小刚";
names[1]="小红";
names[2]="小力";
names[3]="小王";
pageContext.setAttribute("names",names);
%>
<c:forEach items="$(names)" var="name">
$(name)<br>
</c:forEach>
</body>
</html>
我想输出那四个姓名,可是输出结果总是$(name)这个字符串,大家给看看毛病出在什么地方?
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>forEach</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
--> </head>
<body>
<%
String names[] = new String[4];
names[0]="小刚";
names[1]="小红";
names[2]="小力";
names[3]="小王";
pageContext.setAttribute("names",names);
%>
<c:forEach items="$(names)" var="name">
$(name)<br>
</c:forEach>
</body>
</html>
我想输出那四个姓名,可是输出结果总是$(name)这个字符串,大家给看看毛病出在什么地方?
解决方案 »
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改成{}了还是不行,还是输出${name}
$(name) <br>
</c:forEach>
el标签用错了,不是括号(),而是{}
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>forEach</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
--> </head>
<body>
<%
String names[] = new String[4];
names[0]="小刚";
names[1]="小红";
names[2]="小力";
names[3]="小王";
pageContext.setAttribute("names",names);
%>
<c:forEach items="${names}" var="name" begin="1" end="2" step="1">
${name}<br>
</c:forEach>
</body>
</html>
还有jstl包含el标签
加上isELIgnored = "false" 看看。
放了jar包之后重新编译一次项目
对,是放在lib里面了,一着急写错了!