applygoods.java

很好的东东 本人随便做的 仅供学习之用

package xiaoshou.servlets;

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

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

import xiaoshou.classes.CClient;
import xiaoshou.classes.CGood;
import xiaoshou.classes.CUser;
import xiaoshou.javabeans.Operator;

public class ApplyGoods extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public ApplyGoods() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doPost(request,response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		request.setCharacterEncoding("gb2312");		
		
		String clientname=request.getParameter("client");
		String addr=request.getParameter("addr");
		String date=request.getParameter("date");
		CUser user=(CUser)request.getSession().getAttribute("user");
/*检查所填客户是否存在 */		
		CClient client=Operator.queryClientByName(clientname);
		if(client==null){
			request.setAttribute("msg", "客户姓名不存在！");
			request.getRequestDispatcher("/xiaoshou/applyGoods.jsp").forward(request, response);
			return;
		}
/* **************************************************/
		
/*添加订单*******************************************/
		boolean r=false;
		r=Operator.newOrder(client.getId(),clientname,user.getSellid(),
				user.getSell(),date,user.getId(),user.getName(),
				"未审核","普通","",addr);
		if(!r){			
			request.setAttribute("result", "订货失败！");
			request.getRequestDispatcher("/xiaoshou/result.jsp").forward(request, response);
			return;
		}
/* ********************************************** */
		
/*添加订单明细************************************************/
		//先求出订单号orderid
		int orderid=Operator.queryOrderID(clientname, date);
		if(orderid<0){
			request.setAttribute("result", "订货失败！");
			request.getRequestDispatcher("/xiaoshou/result.jsp").forward(request, response);
			return;
		}
		//逐项添加购物车里的内容到订货明细
		ArrayList list=(ArrayList)request.getSession().getAttribute("lists");
		for(int i=0;i<list.size();i++){
			CGood good=(CGood)list.get(i);
			r=Operator.newOrderDetail(orderid, good.getId(), good.getNum(), good.getName());
			if(!r){			
				request.setAttribute("result", "订货失败！");
				request.getRequestDispatcher("/xiaoshou/result.jsp").forward(request, response);
				return;
			}
		}
/* *****************************************************/
		
		if(r)
			request.setAttribute("result", "订货成功！");
		else
			request.setAttribute("result", "订货失败！");
		
		//清空购物车
		request.getSession().removeAttribute("lists");
		
		request.getRequestDispatcher("/xiaoshou/result.jsp").forward(request, response);
	}	

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}