addold1.java

还是超市管理系统 和刚才那个不一样

package superMarket;

import java.io.IOException;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.Vector;

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

/**
 * author EvilSun 
 * version 1.0 2006-08-04
 * 
 */

public class AddOld1 extends HttpServlet
{
	public void doGet(HttpServletRequest request,HttpServletResponse response)
           throws ServletException,IOException{
		response.setContentType("text/html;charset=GBK");
		request.setCharacterEncoding("GBK");
		javabean.OracleBean conn = new javabean.OracleBean();
		ResultSet rs = conn.query("SELECT MAX(b_id) AS maxid FROM buy");
		try{
			rs.next();
			String bid = ""+(rs.getInt("maxid")+1);
			System.out.println(bid);
			HttpSession session = request.getSession();
			 
			//从addold页面上获取参数
			String gname = request.getParameter("gname");
			String bprice = request.getParameter("bprice");
			String unit = request.getParameter("unitb");
			String fname = request.getParameter("fname");
			System.out.println(gname);
			
			//将参数传递给addold1页面上
			session.setAttribute("bid",bid);
			session.setAttribute("gname",gname);
			session.setAttribute("bprice",bprice);
			session.setAttribute("unit",unit);
			session.setAttribute("fname",fname);
			getServletConfig().getServletContext().getRequestDispatcher("/addold1.jsp").forward(request,response);
		}catch(Exception e){
			e.printStackTrace();
		}
	}
	
	public void doPost(HttpServletRequest request,HttpServletResponse response)
    throws ServletException,IOException{
		doGet(request,response);
	}
}