优化部门人员加载缓慢

1.SMSInfo_Add页面初始化部门人员并缓存起来

$(function () {
            createInternalUsers("");
            createExternalUsers();
            $.post("Action.ashx?t=GetUserTree", function () { })//预加载部门人员，缓存后直接调用
        });

2.Internalusers页面调用初始化的部门人员

//部门人员树形节点
        function createTree() {
            $.ajax({
                url: 'Action.ashx?t=GetUserTree',
                data: { id: "100" },
                type: 'POST',
                dataType: "json",
                success: function (result) {
                    if (result.success) {
                        $("#dtload").hide();
                        zNodes = result.data;
                        zTree = $.fn.zTree.init($("#treeUser"), setting, zNodes);
                        zTree.addNodes(null, 0, { id: '00F157EB-1D3A-45FD-AF42-5B142C8D5EHX', pId: 'companyall', isParent: false, name: "公司全员" });
                        var guId = "<%=ReceiveDeptGUID2 %>"; //$("#hid").val();
                        guId = guId.substring(1, guId.length - 1);
                        var idStr = guId.split('，');
                        for (var i = 0; i < idStr.length; i++) {
                            //alert(idStr[i]);
                            zTree.checkNode(zTree.getNodeByParam("id", $.trim(idStr[i])), true, true);
                            GetNodes();
                        }
                    } else {
                        $("#dtload").hide();
                        $("#treeUser").html("<li class='red'>服务器异常：获取用户失败</li>");
                    }
                }
            });
        }

3.部门人员方法

public string GetUserTree(HttpContext context)
        {
            string json = "";
            try
            {
                if (context.Cache["usertree"] == null)
                {
                    SYSUser sysUser = context.Session["SYSUser"] as SYSUser;
                    DepartmentInfo[] dept = port.GetAllDept();
                    GetNodeDeptUser(dept, sysUser.CPInnerID);
                    context.Cache.Insert("usertree", nlist, null, DateTime.Now.AddDays(1), System.Web.Caching.Cache.NoSlidingExpiration);
                }
                else {
                    nlist = (List<zTreeNode>)context.Cache["usertree"];
                }
                var obj = new { success = true, data = nlist, msg = "" };
                json = HX.Common.JsonHelper.SerializeObject(obj);
            }
            catch (Exception ex)
            {
                var obj = new { success = false, msg = ex.Message };
                json = HX.Common.JsonHelper.SerializeObject(obj);
            }
            return json;
        }