orderaction.java

首先确保MySQL4.0数据库已经正确安装

package edu.jnestore.action;

import org.apache.struts.action.*;
import javax.servlet.http.*;
import java.util.Arrays;
import java.text.DecimalFormat;
import edu.jnestore.util.SelectedBook;
import edu.jnestore.common.User;
import edu.jnestore.common.Constants;
import edu.jnestore.beans.Book;
import edu.jnestore.beans.Order;
import edu.jnestore.service.*;

/**
 *处理用户查看购物车以及处理订单的请求
 */
public class OrderAction extends Action
{
  public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
  { 	
    //获得业务操作对象
    IBizService bizservice = BizServiceFactory.createService();
    HttpSession session = httpServletRequest.getSession();
    //判断当前用户是否已经登录
    if(!edu.jnestore.service.CheckLogin.getInstance().isLogin(session))
    {
      return actionMapping.findForward("notLogon");
    }
    OrderActionForm orderActionForm = (OrderActionForm)actionForm;
    //从session对象中取得与当前用户对应的User对象
    User user = (User)session.getAttribute(Constants.USER_KEY);
    //取得当前用户所选商品
    java.util.Collection c = user.getBookList();
    if(c!=null) {
    	    //将用户所选商品存储到SelectedBook[]中，并添加到orderActionForm对象
	    java.util.Iterator iterator = c.iterator();
	    SelectedBook[] bookList = new SelectedBook[c.size()];
	    for(int n=0;iterator.hasNext();n++)
	    {
	      Book book = (Book)iterator.next();
	      bookList[n] = new SelectedBook(book.getIsbnid(),book.getName(),book.getAuthor(),book.getPrice());
	    }
	    orderActionForm.setBookList(bookList);
	    iterator = java.util.Arrays.asList(orderActionForm.getBookList()).iterator();
	    double totalPrice=0.0;
	    //进行价格汇总
	    while(iterator.hasNext())
	    {
	      SelectedBook book = (SelectedBook)iterator.next();
	      Double price = Double.valueOf(book.getPrice());
	      totalPrice = totalPrice + price.doubleValue();
	    }
	    DecimalFormat format = new DecimalFormat("######0.00");
	    orderActionForm.setTotalPrice(format.format(totalPrice));
    }
    //如果orderActionForm的action属性不为null，表明要进行订单处理，调用业务操作对象的
    //processOrder方法进行订单处理
    if(orderActionForm.getAction()!=null)
    {
      
      SelectedBook[] booklist = orderActionForm.getBookList();
      for(int n=0;n<booklist.length;n++)
      {
        Order order = new Order(user.getUserID(),booklist[n].getIsbnid());          
        try{
         bizservice.processOrder(order);      
        }catch(Exception e) {
           e.printStackTrace();	
        	}
                 
      }
      user.setBookList(null);
    }
    return actionMapping.findForward("order");
    
  }
}