jsp_project_/store/src/OrderSevrlet

import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;

import javax.servlet.RequestDispatcher;
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 conn.*;

public class OrderSevrlet extends HttpServlet {

/**
*
*/
private static final long serialVersionUID = 1L;

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

/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
//产生日期
private String getToday()
{
Calendar today = Calendar.getInstance();
int year = today.get(Calendar.YEAR);
int month = today.get(Calendar.MONTH)+1;
int day = today.get(Calendar.DAY_OF_MONTH);
return year+"年"+month+"月"+day+"日";
}

/**
* 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 synchronized
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
response.setCharacterEncoding("UTF-8");
HttpSession session = request.getSession();
String name =(String) session.getAttribute("UserName");
if(name==null)
{
RequestDispatcher rd= request.getRequestDispatcher("ReLogin.jsp");
rd.forward(request,response);
}
ArrayList a=(ArrayList) session.getAttribute("P");
if(a ==null || a.size()==0)
{
RequestDispatcher rd= request.getRequestDispatcher("MyStore.jsp");
rd.forward(request,response);
}

String date =getToday();
ConnectionDatabase con = new ConnectionDatabase();
String StrID = con.getOrderID("{ call getordID(?) }");
con.updateBase("insert into CustomerOrder (orderID, Uname,orderD,ExceOrder,RMsgDate) values('"+StrID+"','"+name+"','"+date+"','0',getdate())");
for(int i = 0; i <a.size();i++ )
{
con.updateBase("insert into ordPID values('"+StrID+"','"+a.get(i).toString()+"')");
}

session.setAttribute("P",null);
session.setAttribute("UserName",name);
RequestDispatcher rd= request.getRequestDispatcher("MyStore.jsp");
rd.forward(request,response);
out.flush();
out.close();
}

/**
* 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 {

response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.flush();
out.close();
}

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

}

}