productlistener.java

来自「网上商城源代码！实现了书店的列表和增加」· Java 代码 · 共 43 行

package bookstore.listens;

import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import bookstore.model.biz.*;
import bookstore.model.eneity.*;

public class ProductListener implements ServletContextListener {

	public void contextInitialized(ServletContextEvent event) {
		ServletContext application = event.getServletContext();
		
		IShoppingCartBiz spbiz = new ShoppingCartBiz();
		try{
			Collection col = spbiz.findAllProducts();
			Map products = new HashMap();
			
			for(Iterator it = col.iterator(); it.hasNext();){
				Product p = (Product)it.next();
				products.put(p.getId(),p);
			}
			
			application.setAttribute("products",products);
		}catch(Exception e){
			e.printStackTrace();
		}
	}

	public void contextDestroyed(ServletContextEvent event) {
		

	}

}