vieworderservlet.java

基于jsp的网上书店


package adminshop;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;




public final class ViewOrderServlet extends HttpServlet{  
	protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        
   		String keyword = (String)req.getAttribute("keyword");
		Integer pageId = (Integer)req.getAttribute("pageId");
	    HttpSession session = req.getSession(true);
			//获取匹配订单
			DB  db =new  DB();
		List orderList = null;
		try {
			orderList = new shopadmin().getMatchOrders(db, keyword);
		} catch (Exception e) {
			// TODO 自动生成 catch 块
			e.printStackTrace();
		}
		/*
		 * 无符合条件对象
		 */
		if (orderList.size()==0){           
			//ActionMessages errors = new ActionMessages();
			ArrayList error = null;
			error.add(ActionMessages.GLOBAL_MESSAGE,
				new ActionMessages("errors.noMatch"));
			if (!error.isEmpty()) {
				saveErrors(req, error);
			} 
			resp.sendRedirect("toWrong");  
		}
		else{
			//分页显示订单列表
			ViewList viewList=new ViewList();
			viewList.display (orderList,session,pageId,keyword) ;
			resp.sendRedirect("toListOrder");
		}
 	}

	private void saveErrors(HttpServletRequest req, ArrayList error) {
		// TODO 自动生成方法存根
		
	}
}