searchservlet.java~16~

是一个简单的在线投票系统

package votetool;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;

public class SearchServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";

    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        BaseDao db=new BaseDao();
        ArrayList ls=db.getTicket();
        int a=0;
        int b=0;
        int c=0;
        int d=0;
        int e=0;
       for(int i=0;i<ls.size();i++){
            Ticket tk=(Ticket)ls.get(i);
           if(tk.getItem().equals("A")){
               a++;
           }
           else if(tk.getItem().equals("B")){
               b++;
           }
           else if(tk.getItem().equals("C")){
               c++;
           }
           else{
               d++;
           }
       }
        e=a+b+c+d;
        request.setAttribute("A",a);
        request.setAttribute("B",b);
        request.setAttribute("C",c);
        request.setAttribute("D",d);
        request.setAttribute("E",e);
        this.getServletContext().getRequestDispatcher("/result.jsp").forward(request,response);

    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        doGet(request, response);
    }

    //Clean up resources
    public void destroy() {
    }
}