JSTL遍历数组
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ page import="com.wgh.User"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>JSTL遍历数组</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>
<%
int[] ages={1,2,3,4,5};// 普通数组，JSTL直接使用JSP赋值表达式来取
List<String> names=new LinkedList<String>(); // List
names.add("One");
names.add("Two");
names.add("Three");
request.setAttribute("names", names); // 添加到request
Set<String> set=new TreeSet<String>();// Set
set.add("One");
set.add("One");
set.add("Two");
set.add("Three");
set.add("Set");
Map<String,String> map=new HashMap<String,String>();// Map
map.put("1","map");
map.put("2","map1");
map.put("3","map2");
map.put("4","map3");
List<User> users = new ArrayList<User>(); // JavaBean的List
users.add(new User("aa","vvvvv"));
users.add(new User("bb","zzzzz"));
users.add(new User("cc","fffff"));
session.setAttribute("users", users); // 添加到session
%>
数组遍历
<c:forEach var="age" items="<%=ages%>">
<c:out value="${age}" />
</c:forEach>
<br />
遍历List:
<c:forEach var="name" items="<%= names %>">
<c:out value="${name}" />
</c:forEach>
<br />
遍历List:
<c:forEach var="name" items="${names}">
<c:out value="${name}" />
</c:forEach>
<br>
遍历Set:
<c:forEach var="entry" items="<%= set %>">
<c:out value="${entry}" />
</c:forEach>
<br />
遍历Map:
<c:forEach var="entry" items="<%= map %>">
<c:out value="${entry.key}"/>
<c:out value="${entry.value}"/>
</c:forEach>
<br>
遍历UserBean的List:
<c:forEach var="user" items="<%=users %>">
<c:out value="${user.username} "/>
<c:out value="${user.password} "/>
</c:forEach>
<br>
</body>
</html>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ page import="com.wgh.User"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>JSTL遍历数组</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<%
int[] ages={1,2,3,4,5};// 普通数组，JSTL直接使用JSP赋值表达式来取
List<String> names=new LinkedList<String>(); // List
names.add("One");
names.add("Two");
names.add("Three");
request.setAttribute("names", names); // 添加到request
Set<String> set=new TreeSet<String>();// Set
set.add("One");
set.add("One");
set.add("Two");
set.add("Three");
set.add("Set");
Map<String,String> map=new HashMap<String,String>();// Map
map.put("1","map");
map.put("2","map1");
map.put("3","map2");
map.put("4","map3");
List<User> users = new ArrayList<User>(); // JavaBean的List
users.add(new User("aa","vvvvv"));
users.add(new User("bb","zzzzz"));
users.add(new User("cc","fffff"));
session.setAttribute("users", users); // 添加到session
%>
数组遍历
<c:forEach var="age" items="<%=ages%>">
<c:out value="${age}" />
</c:forEach>
<br />
遍历List:
<c:forEach var="name" items="<%= names %>">
<c:out value="${name}" />
</c:forEach>
<br />
遍历List:
<c:forEach var="name" items="${names}">
<c:out value="${name}" />
</c:forEach>
<br>
遍历Set:
<c:forEach var="entry" items="<%= set %>">
<c:out value="${entry}" />
</c:forEach>
<br />
遍历Map:
<c:forEach var="entry" items="<%= map %>">
<c:out value="${entry.key}"/>
<c:out value="${entry.value}"/>
</c:forEach>
<br>
遍历UserBean的List:
<c:forEach var="user" items="<%=users %>">
<c:out value="${user.username} "/>
<c:out value="${user.password} "/>
</c:forEach>
<br>
</body>
</html>
声明：该文观点仅代表作者本人，牛骨文系教育信息发布平台，牛骨文仅提供信息存储空间服务。
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