allcheciservlet.java

自己做的一个火车票售票网站是课程设计 用的是servlet+jsp 数据库是ms

package com.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

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

import com.factory.CheciFactory;

public class AllCheciServlet extends HttpServlet {

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		ArrayList array1 = (ArrayList) request.getAttribute("getCheciNumber");
		Iterator it = array1.iterator();
		Collection coll = new ArrayList();
		while (it.hasNext()) {
			String temp = (String) it.next();

			coll.add(CheciFactory.getCheciDAOImpl().selectByNumber(temp));

		}
		request.setAttribute("allCheciVO", coll);
		if (coll.isEmpty()) {
			request.getRequestDispatcher("error.jsp")
					.forward(request, response);
		} else {
			request.getRequestDispatcher("show.jsp").forward(request, response);
		}
	}

}