<%@ tag import="java.util.Date" import="java.text.DateFormat"%>

<%

DateFormat dateFormat =

DateFormat.getDateInstance(DateFormat.LONG);

Date now = new Date(System.currentTimeMillis());

out.println(dateFormat.format(now));

%>

<%@ taglib prefix="easy" tagdir="/WEB-INF/tags" %>

Today is <easy:firstTag/>

<%@ directive (attribute="value")* %>

<%@ directive attribute1="value1" attribute2="value2" ... %>

<%@ tag (attribute="value")* %>

<%@ tag attribute1="value1" attribute2="value2" ... %>

<%@ tag display-name="first tag file" body-content="scriptless"

%>

<%@ tag body-content="empty" %>

<%@ tag language="java" pageEncoding="UTF-8"%>

This tag file shows the use of the include directive.

The first include directive demonstrates how you can include

a static resource called included.html.

<br/>

Here is the content of included.html:

<%@ include file="included.html" %>

<br/>

<br/>

The second include directive includes another dynamic resource:

included.tagf.

<br/>

<%@ include file="include.tagf" %>

<table>

<tr>

<td><b>Menu</b></td>

</tr>

<tr>

<td>CDs</td>

</tr>

<tr>

<td>DVDs</td>

</tr>

<tr>

<td>Others</td>

</tr>

</table>

<%

    out.println("hello from included.tagf");

%>

<%@ taglib prefix="easy" tagdir="/WEB-INF/tags" %>

<easy:includeDemoTag/>

<%@ taglib uri="tagLibraryURI" prefix="tagPrefix" %>

<prefix:tagName/>

<prefix:tagName>body</prefix:tagName>

<%@ taglib prefix="simple"  tagdir="/WEB-INF/tags"  %>

The server's date: <simple:firstTag />

<easy:IncludeDemoTag />

<%@ attribute (attribute="value")* %>

<%@ attribute attribute1="value1" attribute2="value2" ... %>

<%@ tag language="java"   pageEncoding="UTF-8"  %>

<%@ attribute name="input"  required="true"  %>

<%!

    private String encodedHtmlTag(String tag){

    if ( tag == null) return null;

    int length = tag.length();

    StringBuilder encodedTag = new StringBuilder( * length);

    for( int i =; i < length; i++)

    {

        char c = tag.charAt(i);

        if( c == '<')

            encodedTag.append("&lt;");

        else if ( c == '>')

            encodedTag.append("&gt;");

        else if ( c == '&')

            encodedTag.append("&amp;");

        else if ( c == '"')

            encodedTag.append("&qout");

        else if ( c == ' ')

            encodedTag.append("&nbsp;");

        else

            encodedTag.append(c);

    }

    return encodedTag.toString();

}

%>

<%=encodedHtmlTag(input) %>

<%@ taglib prefix="easy" tagdir="/WEB-INF/tags" %>

<easy:encode input="<br/> means changing line"/>

<%@ variable (attribute="value")* %>

<%@ variable attribute1="value1" attribute2="value2" ... %>

<%@ tag language="java"   pageEncoding="UTF-8" %>

<%@ tag import="java.util.Date"  import="java.text.DateFormat"  %>

<%@ variable name-given="longDate"  %>

<%@ variable name-given="shortDate"  %>

<%

    Date now = new Date();

    DateFormat longFormat = DateFormat.getDateInstance(DateFormat.LONG);

    DateFormat shortFormat = DateFormat.getDateInstance(DateFormat.SHORT);

    jspContext.setAttribute("longDate", longFormat.format(now));

    jspContext.setAttribute("shortDate",shortFormat.format(now));

%>

<jsp:doBody />

<%@ taglib prefix="tags" tagdir="/WEB-INF/tags" %>

Today's date:

<br/>

<tags:varDemo>

In long format: ${longDate}

<br/>

In short format: ${shortDate}

</tags:varDemo>

<jsp:doBody var="referer" scope="session"/>

Your referer header: ${header.referer}

<br/>

<tags:doBodyDemo>

${header.referer} <!--  这个值会传给doBodyDemo.tag 里的 referer1 变量-->

</tags:doBodyDemo>

<a href="viewReferer.jsp">View</a> the referer as a Session attribute.

The referer header of the previous page is ${sessionScope.referer1}<!-- 打印refere1的值 -->

<%@ tag language="java" pageEncoding="UTF-8"%>

<%@ attribute name="productDetails"  fragment="true"  %>

<!--  因为invoke 是用来调用fragment 的,如果fragment="false" 的话 连续按F5刷新页面会报错 -->

<%@ variable name-given="productName"  %>

<%@ variable name-given="description"  %>

<%@ variable name-given="price"  %>

<%

    jspContext.setAttribute("productName", "Pelesonic DVD Player");

    jspContext.setAttribute("description","Dolby Digital output through coaxial digital-audio jack,"

                        +" 500 lines horizontal resolution-image digest viewing");

    jspContext.setAttribute("price",);

%>

<jsp:invoke fragment="productDetails" />

<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<%@ taglib prefix="easy" tagdir="/WEB-INF/tags" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<title>Product Details</title>

</head>

<body>

    <easy:invokeDemo>

        <jsp:attribute name="productDetails">

<table width=""  border=""  cellspacing="">

<tr>

<td><b>Product Name</b></td>

<td>${productName}</td>

</tr>

<tr>

<td><b>Description</b></td>

<td>${description}</td>

</tr>

<tr>

<td><b>Price</b></td>

<td>${price}</td>

</tr>

</table>

</jsp:attribute>

    </easy:invokeDemo>

</body>

</html>