getjson Inter

Request address ( directly in the browser request )

  http://server.llkk.com:8181/Server.do?gid=100000&utype=1&callback=?
  

return the string

  ?({server:[{stype:'server',serverinfo:[{sid:10010001,sname:'封测1服'}]})
  

  $.getJSON("http://server.llkk.com:8181/Rank.do?sid=1&gid=1&type=level", function (data) {
          alert("s");//不会执行...
      });
  

  public class Server extends HttpServlet {
  
  	public void doGet(HttpServletRequest request, HttpServletResponse response)
  			throws ServletException, IOException {
  		response.setHeader("P3P", "CP=CAO PSA OUR");
  		response.setContentType("text/javascript");
  		response.setCharacterEncoding("utf-8");
  
  		HashMap serverMap = null;
  		List<Object[]> serverList = (List<Object[]>) null;
  		String callback = request.getParameter("callback");
  		String gid = request.getParameter("gid");
  		int utype = Integer.parseInt(request.getParameter("utype"));
  		StringBuffer str = new StringBuffer();
  		str.append("{server:[");
  
  		serverMap = Constant.serverList;
  		if (serverMap.size() != 0) {
  			serverList = (List<Object[]>) serverMap.get(gid);
  			if (serverList != null && serverList.size() > 0) {
  				Iterator i = serverList.iterator();
  				int index = 0;
  				while (i.hasNext()) {
  					index++;
  					Object[] sInfo = (Object[]) i.next();
  					if (utype == 0) {
  						if (sInfo[4].equals("A")) {
  							if (sInfo[3] == null) {
  								str.append("{stype:'server',serverinfo:[{sid:" + sInfo[1] + ",sname:'" + sInfo[2] + "'}");
  							} else {
  								if (sInfo[3].equals(1)) {
  									str.append("{stype:'newserver',serverinfo:[{sid:" + sInfo[1] + ",sname:'" + sInfo[2] + "'}");
  								} else if (sInfo[3].equals(0)) {
  									str.append("{stype:'server',serverinfo:[{sid:" + sInfo[1] + ",sname:'" + sInfo[2]+ "'}");
  								}
  							}
  						}
  					} else if (utype == 1) {
  						if (sInfo[3] == null) {
  							str.append("{stype:'server',serverinfo:[{sid:" + sInfo[1] + ",sname:'" + sInfo[2] + "'}");
  						} else {
  							if (sInfo[3].equals(1)) {
  								str.append("{stype:'newserver',serverinfo:[{sid:" + sInfo[1] + ",sname:'" + sInfo[2] + "'}");
  							} else if (sInfo[3].equals(0)) {
  								str.append("{stype:'server',serverinfo:[{sid:" + sInfo[1] + ",sname:'" + sInfo[2]+ "'}");
  							}
  						}
  					}
  					if (index < serverList.size()) {
  						str.append(",");
  					}
  				}
  			}
  		}
  		str.append("]}");
  
  		PrintWriter out = response.getWriter();
  		out.print(callback+"("+str.toString()+")");
  		out.flush();
  		out.close();
  	}
  }
  

------ Solution ------------------------------------- -------
return json format issues now ... wood has seen escaping the place !
------ For reference only -------- -------------------------------
My question is : Why does not perform getJSON Lane , java code wrong do
------ For reference only ------------------------------------- -
third wrong, should be:

  $.getJSON("http://server.llkk.com:8181/Server.do?gid=100000&utype=1&callback=?", function (data) {
  alert("s")//不执行
  });
  
  

------ For reference only ----------------------------------- ----
because you are now writing or ajax, instead of JSONP protocol
------ For reference only ------------------- --------------------
cross-domain it. Url address in the background request access to data , and then through the front ajax call back method .
------ For reference only -------------------------------------- -
is JSON format problems , do not escape ,

  ?({server:[{stype:'server',serverinfo:[{sid:10010001,sname:'封测1服'}]})
  //格式错了，右边少了"]}"
  

------ For reference only ---------------------------------- -----
use . ajax it seems the problem when using this method