Ajax && json(原始)

function findSend() {
        $.ajax({
//            async: false,
//            cache: true,
            type: "POST",
            url: "InMessageServlet?action=findSend",
            data: $(‘#receiveForm‘).serialize(),// 你的formid
            dataType: ‘json‘,
//            error: function(request) {

//            },
            success: function (data) {
//                alert(data.success);
//            window.location.href = "InMessageServlet?action=one";

            }
        });
    };

public void findSend(HttpServletRequest request, HttpServletResponse response) throws Exception {

List<InMessage> list = new ArrayList<InMessage>();

InMessage im = new InMessage();。。。。。。

list.add(im);

JSONArray json = new JSONArray();for (InMessage a : list) {    JSONObject jo = new JSONObject();    jo.put("mainMessage", a.getMainMessage());    jo.put("sendUserName", a.getSendUserName());    json.put(jo);}request.setCharacterEncoding("utf-8");response.setContentType("text/json");PrintWriter out = response.getWriter();

out.print(json);out.flush();out.close();}