sellshoppingupdate.java

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package com.jxc.servlet.sellshopping;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;

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

import com.jxc.dao.Conn;
import com.jxc.dao.SellshoppingTreat;
import com.jxc.dao.StockShoppingTreat;
import com.jxc.vo.Sellshopping;

public class SellShoppingUpdate extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public SellShoppingUpdate() {
		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 {

		this.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 {

		Connection conn1=Conn.getConnection();
		Connection conn2=Conn.getConnection();
		int price=0;
		int num1=0;
		int num2=0;
		int id=0;
		java.sql.Date d=null;
		HttpSession session =request.getSession();
		String num=request.getParameter("num1");
		String ID=request.getParameter("id");
		String sid=request.getParameter("sid");
		String outprince=request.getParameter("outprince");
		String outnum=request.getParameter("outnum");
		String outtime=request.getParameter("outtime");
		String yid=request.getParameter("yid");
		if("".equals(sid)||"".equals(outprince)||"".equals(outnum)){
			session.setAttribute("erro", "null");
			response.sendRedirect("sellshoppingupdate.jsp");
		}else{
			try {
				id=Integer.parseInt(ID);
				price=Integer.parseInt(outprince);
				num1=Integer.parseInt(num);
				num2=Integer.parseInt(outnum);
				d=java.sql.Date.valueOf(outtime);
			} catch (NumberFormatException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			Sellshopping sell=new Sellshopping();
			sell.setSid(sid);
			sell.setOutnum(num2);
			sell.setOutprince(price);
			sell.setOuttime(d);
			sell.setYid(yid);
			int i=num1-num2;
			if(new SellshoppingTreat().updateById(conn1, id, sell)&&new StockShoppingTreat().updateById(conn2, sid, i)){
				session.setAttribute("erro", "succ");
				response.sendRedirect("sellshoppingupdate.jsp");
			}else{
				session.setAttribute("erro", "false");
				response.sendRedirect("sellshoppingupdate.jsp");
			}
		}
		
	}

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

}