sellshoppinginsert.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.*;
import com.jxc.vo.Sellshopping;
import com.jxc.vo.Vo;

public class SellShoppingInsert extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public SellShoppingInsert() {
		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 conn0=Conn.getConnection();
		Connection conn1=Conn.getConnection();
		Connection conn2=Conn.getConnection();
		Connection conn3=Conn.getConnection();
		HttpSession session=request.getSession();
		java.util.Date d=new java.util.Date();
		java.sql.Date date=new java.sql.Date(d.getYear(),d.getMonth(),d.getDate());
		String yid=(String) session.getAttribute("yid");
		String sid=request.getParameter("sid");
		int prince=0;
		int num1=0;
		int num2=0;
		if("".equals(sid)||"".equals(request.getParameter("outnum"))||"".equals(request.getParameter("outprince"))){
			session.setAttribute("erro", "kong");
			response.sendRedirect("sellshopping.jsp");
		}else{
		
		try {
			prince=Integer.parseInt(request.getParameter("outprince"));
			num1=Integer.parseInt(request.getParameter("outnum"));
			num2=-num1;
		} catch (NumberFormatException e) {
			// TODO Auto-generated catch bloc
			e.printStackTrace();
		}
	
		if(new StockShoppingTreat().selectId(conn0, sid)){
			int i=new StockShoppingTreat().selectsum(conn1, sid);
			if(i>num1){
				Sellshopping vo=new Sellshopping();
				vo.setSid(sid);
				vo.setOutprince(prince);
				vo.setOutnum(num1);
				vo.setOuttime(date);
				vo.setYid(yid);
				if(new SellshoppingTreat().insert(conn2, vo)&&new StockShoppingTreat().updateById(conn3, sid, num2)){
					session.setAttribute("erro", "succ");
					response.sendRedirect("sellshopping.jsp");
					
				}else{
					session.setAttribute("erro", "false");
					response.sendRedirect("sellshopping.jsp");
				}
				
			}else{
				session.setAttribute("erro", "shao");
				response.sendRedirect("sellshopping.jsp");
			}
			
		}else{
			session.setAttribute("erro", "null");
			response.sendRedirect("sellshopping.jsp");
		}
		
		
	}

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

}