Xdoclet （2）

web.xml和taglib

作servlet映射是个讨厌的工作,当你接收别的项目的时候,这个项目的servlet怎么用可能比较麻烦,可能当时web.xml的映射找不到了,这时怎么办呢?

 

看这个文件

package com.xdocletbook.blog.servlet;

 

import java.io.IOException;

import javax.servlet.ServletConfig;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Level;

import org.apache.log4j.Logger;

 

/**

* @web.servlet

* name="HomePage"

* @web.servlet-init-param

* name="LogLevel"

* value="{LOG_LEVEL}"

* @web.servlet-mapping

* url-pattern="/home"

*

* @web.security-role

*role-name="{OwnerRole}"

* @web.security-role-ref

*role-name="blogowner"

*role-link="{OwnerRole}"

*/

 

 

public class HomePageServlet

extends HttpServlet {

private static Logger LOGGER = Logger.getLogger(HomePageServlet.class);

public void init() throws ServletException {

String logLevel = getInitParameter("LogLevel");

if (logLevel != null && logLevel.length() > 0) {

LOGGER.setLevel(Level.toLevel(logLevel));

}

}

 

public void service(HttpServletRequest request, HttpServletResponse response) throws

ServletException, IOException {

LOGGER.debug("Displaying home page");

request.getRequestDispatcher("jsp/home.jsp").forward(request, response);

}

}

然后配置build.xml增加如下任务

 

 

然后运行ant generate-web

 

结果就是这样一个web.xml

 

 

 

 

 

StrutsActionServlet

org.apache.struts.action.ActionServlet

 

HomePage

com.xdocletbook.blog.servlet.HomePageServlet

 

LogLevel

1

 

blogowner

aOwner

 

StrutsActionServlet

*.do

 

HomePage

/home

 

 

 

 

 

aOwner