?? progressbarservlet.java
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/* * ProgressBar.java * * Created on June 20, 2005, 7:11 PM */package ajaxbook.chap4;import java.io.*;import javax.servlet.*;import javax.servlet.http.*;/** * * @author nate * @version */public class ProgressBarServlet extends HttpServlet { private int counter = 1; /** 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 { String task = request.getParameter("task"); String res = ""; if (task.equals("create")) { res = "<key>1</key>"; counter = 1; } else { String percent = ""; switch (counter) { case 1: percent = "10"; break; case 2: percent = "23"; break; case 3: percent = "35"; break; case 4: percent = "51"; break; case 5: percent = "64"; break; case 6: percent = "73"; break; case 7: percent = "89"; break; case 8: percent = "100"; break; } counter++; res = "<percent>" + percent + "</percent>"; } PrintWriter out = response.getWriter(); response.setContentType("text/xml"); response.setHeader("Cache-Control", "no-cache"); out.println("<response>"); out.println(res); out.println("</response>"); out.close(); } /** 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 { doGet(request, response); } /** Returns a short description of the servlet. */ public String getServletInfo() { return "Short description"; }}?? 快捷鍵說明
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