?? ping.java
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/*
* ping.java
*
* Created on 2007年11月20日, 下午12:20
*/
package servlet;
import dianping.DB;
import java.io.*;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.*;
import javax.servlet.http.*;
/**
*冷漠大神 q 361619004
* @author Angel
* @version
*/
public class ping extends HttpServlet {
/** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String id=request.getParameter("id");
DB db=new DB();
int dianji=0;
ResultSet rs=db.MSquery("select dianji from web where id="+id);
try {
if(rs.next())
dianji=rs.getInt("dianji");
} catch (SQLException ex) {
ex.printStackTrace();
}
db.close();
dianji++;
db.MSupdate("update web set dianji='"+dianji+"' where id="+id);
HttpSession session=request.getSession();
session.setAttribute("id",id);
response.sendRedirect("ping.jsp");
/* TODO output your page here
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet ping</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet ping at " + request.getContextPath () + "</h1>");
out.println("</body>");
out.println("</html>");
*/
out.close();
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/** Handles the HTTP <code>GET</code> method.
* @param request servlet request
* @param response servlet response
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/** Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/** Returns a short description of the servlet.
*/
public String getServletInfo() {
return "Short description";
}
// </editor-fold>
}
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