<%@ page language="java" import="java.util.*,model.*" pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%
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>JSP JSTL標準標籤庫</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>
<h3>JSTL核心標籤庫</h3>
<%
pageContext.setAttribute("abc", null);
pageContext.setAttribute("name", "monkey");
pageContext.setAttribute("hello", "<h1>JSTL Core 標籤</h1>");
%>
<h3>out標籤</h3>
c:out--><c:out value="zhangsan"/><br>
<c:out value="${abc }">wangwu</c:out><br>
<c:out value="${abc }" default="lisi"/><br>
<c:out value="${name }"></c:out>
<c:out value="${hello }" escapeXml="false">ljiu</c:out>
<hr>
<h3>set標籤</h3>
<c:set value="java" var="test"/>
${test }<br>
<c:set var="test1">
hello jstl
</c:set>
${test1 }<br>
c:set標籤存儲值到JavaBean屬性中:
<jsp:useBean id="stu" class="model.Student"></jsp:useBean>
<c:set value="1001" target="${stu }" property="id"></c:set>
<c:set value="zhangsan" target="${stu }" property="name"></c:set>
${stu.id }--->${stu.name }<br>
<c:set target="${stu }" property="id">1002</c:set>
<c:set target="${stu }" property="name">simaguang</c:set>
${stu.id }--->${stu.name }<br>
<%
pageContext.setAttribute("msg", "這是pageContext的數據");
request.setAttribute("msg", "這是request的數據");
session.setAttribute("msg", "這是session的數據");
application.setAttribute("msg", "這是application的數據");
List<String> list1=new ArrayList();
list1.add("beijing");
list1.add("tianjin");
list1.add("shanghai");
list1.add("xi'an");
request.setAttribute("list1", list1);
Student stu1=new Student(1001,"zhangsan");
Student stu2=new Student(1002,"lisi");
List<Student> list2=new ArrayList();
list2.add(stu1);
list2.add(stu2);
request.setAttribute("list2", list2);
String str="welcome to Tianjin";
request.setAttribute("str", str);
%>
${pageScope.msg }<br>
c:remove標籤:<br>
<c:remove var="msg"/>
${requestScope.msg }
${pageScope.msg }<br>
c:catch標籤:<br>
<c:catch var="info">
<%
out.print(10/0);
%>
</c:catch>
${info }<br>
c:choose、c:when、c:otherwise 標籤:<br>
<c:choose>
<c:when test="${5<4 }">hello</c:when>
<c:when test="${3>2 }">world</c:when>
<c:otherwise>!</c:otherwise>
</c:choose>
<br>
c:foreach標籤:<br>
<c:forEach begin="1" end="10" step="2" var="i">
${i }
</c:forEach>
<br>
c:forEach迭代集合對象:<br>
<c:forEach items="${list1 }" var="address">
${address }
</c:forEach>
<br>
c:foreach迭代JavaBean對象:<br>
<c:forEach items="${list2 }" var="student" varStatus="status">
${status.first}-->${status.last}-->${status.index }-->${status.count }-->${student.id }---->${student.name }<br>
</c:forEach>
<br>
<table>
<tr>
<th>ID</th>
<th>Name</th>
</tr>
<c:forEach items="${list2 }" var="student" varStatus="status">
<c:if test="${status.index%2==0 }">
<tr bgcolor="red">
</c:if>
<c:if test="${status.index%2!=0 }">
<tr bgcolor="green">
</c:if>
<td>${student.id }</td>
<td>${student.name }</td>
</tr>
</c:forEach>
</table>
<hr>
c:forTokens標籤:<br>
<c:forTokens items="${str }" delims=" " var="item">
${item }<br>
</c:forTokens>
</body>
</html>
package model;
public class Student {
private int id;
private String name;
public Student(){
}
public Student(int id,String name){
this.id=id;
this.name=name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}