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>
JSF2 下 taglib 的问题,布布扣,bubuko.com
原文:http://www.cnblogs.com/cndavy/p/3747010.html