weblistener.java

在线足球社区源代码

package web;

import javax.servlet.*;
import java.io.*;
import java.util.*;

import web.domain.*;
/*
 * 
 * @author sun
 *
 * TODO 要更改此生成的类型注释的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
public class WebListener implements ServletContextListener {
	/*
	 *  （非 Javadoc）
	 * @see javax.servlet.ServletContextListener#contextInitialized(javax.servlet.ServletContextEvent)
	 */
	public void contextInitialized(ServletContextEvent sce){
		System.out.println("Web App Start...");
		
		ServletContext context = sce.getServletContext();
		String catalogFileName = context.getInitParameter("catalogFileName");
		
		System.out.println("Catalog File Name:"+catalogFileName);
		
		InputStream is = context.getResourceAsStream(catalogFileName);
		//InputStream is = context.getResourceAsStream("/WEB-INF/catalog.txt");
		BufferedReader br = new BufferedReader(new InputStreamReader(is));
		
		try{
			String s=null;
			ArrayList catalog = new ArrayList();
			while((s=br.readLine())!=null){
				System.out.println(s);
				StringTokenizer st = new StringTokenizer(s,"|");
				String productCode = st.nextToken();
				String price = st.nextToken();
				String quantity = st.nextToken();
				String description = st.nextToken();
				
				Product p = new Product(productCode,price,Integer.parseInt(quantity),description);
				System.out.println(p);
				catalog.add(p);
			}
			
			context.setAttribute("catalog",catalog);
		}catch(IOException ex){
			ex.printStackTrace();
		}
	}
	/*
	 *  （非 Javadoc）
	 * @see javax.servlet.ServletContextListener#contextDestroyed(javax.servlet.ServletContextEvent)
	 */
	public void contextDestroyed(ServletContextEvent sce){
		System.out.println("Web App Stop...");
	}
	
}