使用extjs，來實現一個頁面調用另一個頁面中的方法，並且能獲得方法的返回值

 

1. var conn = Ext.lib.Ajax.getConnectionObject().conn;
2. conn.open("POST", url, false);
3. conn.send("發送到服務器端的信息");
4. if(conn.status==200)          //成功狀態碼爲200
5. {
6. ....
7. }
8. data = conn.responseText;
9. alert(data);
10. var respText = Ext.decode(conn.responseText);  //若符合JSON規範，轉化爲JSON數組

 

 

然後在一個aspx的頁面的code中，對返回的json進行封裝

        protected override void OnLoad(EventArgs e)
        {
            PrivilegeInfo privilegeInfo = new PrivilegeInfo();
            try
            {
                if (Session["PrivilegeInfo"] != null)
                {
                    privilegeInfo = (PrivilegeInfo)Session["PrivilegeInfo"];
                }
                else if (Request.Params["userid"] != null)
                {
                    string userid = Request.Params["userid"];
                    Session["PrivilegeInfo"] = DataFactory.GetPrivilegeLoader().GetPrivilegeInfo(userid);
                    privilegeInfo = (PrivilegeInfo)Session["PrivilegeInfo"];
                }
            }
            catch
            {

1.             }
               MapOperation MO = DataFactory.GetMapOpertion(privilegeInfo);

               JSONHelper json = new JSONHelper();
               try
               {
                   string layerid = Request.Params["layerid"];
                   string syscode = Request.Params["syscode"];
                   string layercode = Request.Params["layercode"];
                   string layername = Request.Params["layername"];
                   string layertype = Request.Params["layertype"];
                   string iconsrc = Request.Params["icon"];

                   if (syscode != null && layercode != null && layername != null && layertype != null && layercode != "" && layername != "" && layertype != "")
                   {
                       json = MO.AddLayer(layerid, syscode, layercode, layername, layertype, iconsrc);
                   }
                   else
                   {
                       json.success = false;
                       json.error = "缺少參數";
                   }
               }
               catch(Exception ex)
               {
                   json.success = false;
                   json.error = "error";
               }
               finally
               {
                   Response.Write(json.ToString());
                   Response.End();
               }
           }