ext js2.0 json java web 项目例子

/* * Ts.java * * Version 1.0 * * Created on 2009-1-13 * * 时力永联科技有限公司 * 北京市海淀区中关村南大街乙56号方圆大厦9层 * 电话：88026633 * 传真：88026633-291 * 邮编：100044 * 版权所有 */ /** * Ts.java */ package se; import java.io.IOException; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * @author keroro */ public class Ts extends HttpServlet { private static final long serialVersionUID = 1041103360635582685L; private static Map ok; static { ok = new HashMap(); for (int i = 0; i < 15; i++) { String[] ao = new String[3]; ao[0] = "" + i; ao[1] = i + "部"; ao[2] = "1"; ok.put(new Integer(i), ao); } } public Ts() { } protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { req.setCharacterEncoding("utf-8"); String t = "9"; t = req.getParameter("s"); if (t == null) { t = "9"; } String s = req.getParameter("id"); if (t.equals("1")) { if (s != null) { if (!s.trim().equals("")) { String[] mt = (String[]) ok.get(new Integer(Integer.parseInt(s))); mt[1] = req.getParameter("name"); mt[2] = req.getParameter("status_retrunValue"); } } else { String[] mt = new String[3]; mt[0] = ok.size() + ""; mt[1] = req.getParameter("name"); mt[2] = req.getParameter("status_retrunValue"); ok.put(new Integer(ok.size()), mt); } resp.getWriter().write("{success:true,msg:'成功'}"); } else if (t.equals("2")) { String[] pp = (String[]) ok.get(new Integer(0)); String name = req.getParameter("name"); String stat = req.getParameter("stat"); System.out.println(name + stat); // ok = new HashMap(); // ok.put(new Integer(0), pp); serch(req, resp); } else if (t.equals("4")) { if (!s.trim().equals("")) { ok.remove(new Integer(Integer.parseInt(s))); } serch(req, resp); } else { serch(req, resp); } } protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doGet(req, resp); } private void serch(HttpServletRequest req, HttpServletResponse resp) throws IOException { int start = Integer.parseInt(req.getParameter("start")); int limit = Integer.parseInt(req.getParameter("limit")); String json = "{totalProperty:" + ok.size() + ",root:["; Collection po = ok.values(); List li = new ArrayList(); for (Iterator iterator = po.iterator(); iterator.hasNext();) { li.add(iterator.next()); } for (int i = start; i < limit + start; i++) { if (i == ok.size() - 1) { String[] mt = (String[]) li.get(i); json += "{DIM_NO:" + mt[0] + ",Dim_name:'" + mt[1] + "',status:'" + mt[2] + "',oper: ''}"; } else if (i < ok.size()) { String[] mt = (String[]) li.get(i); json += "{DIM_NO:" + mt[0] + ",Dim_name:'" + mt[1] + "',status:'" + mt[2] + "',oper: ''}"; if (i != limit + start - 1) { json += ","; } } } json += "]}"; resp.setCharacterEncoding("utf-8"); resp.getWriter().write(json); } }