1. add servlets in the page.

2. create 'GetInfoServlet.java' to handle the requests.

Website/src/servlets/GetInfoServlet.java

@@ -0,0 +1,135 @@
+package servlets;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.json.JSONArray;
+
+import dao.RMemcachedServer;
+
+@SuppressWarnings("serial")
+public class GetInfoServlet extends HttpServlet {
+
+	/**
+	 * Constructor of the object.
+	 */
+	public GetInfoServlet() {
+		super();
+	}
+
+	/**
+	 * Destruction of the servlet. <br>
+	 */
+	public void destroy() {
+		super.destroy(); // Just puts "destroy" string in log
+		// Put your code here
+	}
+
+	/**
+	 * 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
+	 */
+	public void doGet(HttpServletRequest request, HttpServletResponse response)
+			throws ServletException, IOException {
+
+		doPost(request, response);
+	}
+
+	/**
+	 * 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.setHeader("Cache-Control", "no-cache");
+		response.setContentType("text/json");
+		response.setCharacterEncoding("UTF-8");
+		PrintWriter out = response.getWriter();
+		int type = request.getParameterMap().size();
+		switch (type) {
+		case 5:{
+			System.out.println("Start Run!!!");
+			String[] args = new String[5];
+			for (int i = 1; i <= args.length; i++) {
+				args[i-1] = request.getParameter("para"+i);
+				System.out.print("I = " + args[i-1] + "; ");
+			}
+			System.out.println();
+			RMemcachedServer.run(args);
+			while (!RMemcachedServer.status) {
+				try {
+					Thread.sleep(10);
+					break;
+				} catch (InterruptedException e) {
+					e.printStackTrace();
+				}
+			}
+			System.out.println("Finish Run!!!");
+			out.println("finished");
+			out.flush();
+			out.close();
+		}
+			break;
+		case 1:{
+			while (!RMemcachedServer.initFlag && !RMemcachedServer.status) {
+				try {
+					Thread.sleep(100);
+				} catch (InterruptedException e) {
+					e.printStackTrace();
+				}
+			}
+			System.out.println("Get Result!!!");
+			String result = RMemcachedServer.getResult().toString();
+			out.println(result);
+			out.flush();
+			out.close();
+		}
+			break;
+		case 2:{
+			float time = RMemcachedServer.time / 1000000000.0f;
+			JSONArray stats = RMemcachedServer.nodeStats;
+			Map <String, String> timeandStats = new HashMap<String, String>();
+			timeandStats.put("time", String.format("%.3f", time));
+			timeandStats.put("stats", stats.toString());
+			JSONArray jsons = new JSONArray();
+			jsons.put(timeandStats);
+			String result = jsons.toString();
+			//System.out.println(result);
+			out.println(result);
+			out.flush();
+			out.close();
+		}
+		default:
+			break;
+		}
+	}
+
+	/**
+	 * Initialization of the servlet. <br>
+	 *
+	 * @throws ServletException if an error occurs
+	 */
+	public void init() throws ServletException {
+		// Put your code here
+	}
+
+}