在jsf1使用 taglib 定义 标签出现
The absolute uri: http://java.sun.com/jsf/core cannot be resolved in either web.xml or the jar files deployed with this application
的错误,后来修改成名称空间的方式就可以了
原因不明
<html xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
>
<%@ page import="java.util.ArrayList" %>
<%@ page import="java.util.List" %> <%@ taglib prefix="mytag" uri="http://www.hantongchao.com/tag/mytag" %>
<!--
Created by IntelliJ IDEA.
User: han
Date: 14-2-26
Time: ����1:32
-->
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%
//创建一个List对象
List<String> a = new ArrayList<String>();
a.add("hello");
a.add("world");
a.add("java");
//将List对象放入page范围内
pageContext.setAttribute("a" , a);
%>
<html xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
>
<head><title>Simple jsp page</title></head>
<body> <f:view >
<h:outputLabel value="Hello, world"/>
<mytag:date>time
<table border="1" bgcolor="aaaadd" width="300">
<tr>
<td>${pageScope.a}</td>
<td>${a}</td>
<tr>
</table>
</mytag:date>
</f:view> <table border="1" bgcolor="aaaadd" width="300">
<!-- 使用迭代器标签,对a集合进行迭代 -->
<mytag:iterator collection="a" item="item">
<tr>
<td>${pageScope.item}</td>
<tr> </mytag:iterator>
</table>
<%
//使用pageContext设置属性,该属性默认在page范围内
pageContext.setAttribute("page","hello");
//使用request设置属性,该属性默认在request范围内
request.setAttribute("request","hello");
//使用pageContext将属性设置在request范围中
pageContext.setAttribute("request2","hello"
, pageContext.REQUEST_SCOPE);
//使用session将属性设置在session范围中
session.setAttribute("session","hello");
//使用pageContext将属性设置在session范围中
pageContext.setAttribute("session2","hello"
, pageContext.SESSION_SCOPE);
//使用application将属性设置在application范围中
application.setAttribute("app","hello");
//使用pageContext将属性设置在application范围中
pageContext.setAttribute("app2","hello"
, pageContext.APPLICATION_SCOPE);
//下面获取各属性所在的范围:
out.println("page变量所在范围:" +
pageContext.getAttributesScope("page") + "<br>");
out.println("request变量所在范围:" +
pageContext.getAttributesScope("request") + "<br>");
out.println("request2变量所在范围:"+
pageContext.getAttributesScope("request2") + "<br>");
out.println("session变量所在范围:" +
pageContext.getAttributesScope("session") + "<br>");
out.println("session2变量所在范围:" +
pageContext.getAttributesScope("session2") + "<br>");
out.println("app变量所在范围:" +
pageContext.getAttributesScope("app") + "<br>");
out.println("app2变量所在范围:" +
pageContext.getAttributesScope("app2") + "<br>");
%>
</body>
</html>