web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://[[java]].sun.com/xml/ns/j2ee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
<servlet>
<servlet-name>hello</servlet-name>
<servlet-class>com.example.part1</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>hello</servlet-name>
<url-pattern>/servlet/hello</url-pattern>
</servlet-mapping>
<jsp-config>
<taglib>
<taglib-uri>http://www.javaroad.jp/tags/br</taglib-uri>
<taglib-location>/WEB-INF/br.tld</taglib-location>
</taglib>
</jsp-config>
</web-app>
br.tld
<?xml version="1.0" ?>
<taglib xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
web-jsptaglibrary_2_0.xsd"
version="2.0">
<tlib-version>1.0</tlib-version>
<jsp-version>2.0</jsp-version>
<short-name>brTag</short-name>
<tag>
<name>brTag</name>
<tag-class>com.example.part1.BrTag</tag-class>
<body-content>empty</body-content>
<attribute>
<name>name</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
</attribute>
</tag>
</taglib>
BrTag.java
package com.example.part1;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
public class BrTag implements Tag {
private PageContext pageContext;
private Tag parentTag;
private String name;
public void setPageContext(PageContext pageContext) {
this.pageContext = pageContext;
}
public void setParent(Tag parentTag) {
this.parentTag = parentTag;
}
public Tag getParent() {
return this.parentTag;
}
public void setName(String name) {
this.name = name;
}
public int doStartTag() throws JspException {
try {
JspWriter out = pageContext.getOut();
out.print("Hello " + name);
} catch (Exception e) {
throw new JspException(e.getMessage());
}
return SKIP_BODY;
}
public int doEndTag() throws JspException {
return EVAL_PAGE;
}
public void release() {
}
}
JSP
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ taglib uri="http://www.javaroad.jp/tags/br" prefix="br" %>
</html>
<head></head>
<body>
<br>
<br:brTag name="java" />
<br>
</body>
</html>
最終更新：2013年07月10日 03:04
