Json在asp.net开发中的应用

一、asp.net后台返回Json数据,前台js解析

在后台读取数据,并手动封装成Json格式:

        public ContentResult getUsersByOrgId(int Id)
        {
            DataTable table = UsersLogic.getUsersByOrgId(Id);
            StringBuilder data = new StringBuilder();
            foreach (DataRow row in table.Rows)
            {
                data.Append(",{");
                data.Append("\"UserId\":\"" + row["UserId"] + "\",");
                data.Append("\"UserName\":\"" + row["UserName"] + "\"");
                data.Append("}");
            }

            if (data.Length > 0)
                data = data.Remove(0, 1);
            string result = "{\"items\":[" + Convert.ToString(data) + "]}";
            return Content(result, "application/json");

        }

在前台用js解析,并展示到页面:

    function GetOrgUsers(Id) {
        $.post("/StockManage/Ware/getUsersByOrgId", { Id: Id }, function (data) { 
            var rJson = JSON.parse(JSON.stringify(data));  //转为josn数据
            if (rJson != "" && rJson != null && rJson != "undefined") {
                var htmlData = "";
                for (m = 0; m < rJson.items.length; m++) {
                    var uid = rJson.items[m]["UserId"];
                    var uname = rJson.items[m]["UserName"];
                    htmlData += "<option value=‘" + uid + "‘>" + uname + "</options>";
                }
                $("#Select").html(htmlData);
            }
            return;
        });
    }

二、js封装Json数据,传给后台解析

js封装Json数组:

        var arr = [];
            var jsonObj = {};
            jsonObj.UserId= 2;
            jsonObj.UserName= "Hellow World!";
            jsonObj.Phone= "10086100101";
            arr.push(jsonObj);

            $.post(/UserArea/User/SaveData, { "param": JSON.stringify(arr) }, function (data) {
                Success(data);
            });

ASP.NET后台解析:

        #region 控制器接收数据
        public JsonResult SaveData(string param)
        {

       try { UserLogic.AddConstruct(param); return Json(new { Result = "OK", Message = "操作成功" }); } catch (Exception ex) { return Json(new { Result = "ERROR", Message = ex.Message }); } } #endregion #region 保存数据到数据库 public static bool AddConstruct(string json) { bool status = false; try { JArray jObject = (JArray)JsonConvert.DeserializeObject(json); for (int i = 0; i < jObject.Count; i++) { User cs = new User(); var tmpObj = (JObject)jObject[i]; cs.UserId= Convert.Int(tmpObj["UserId"]); cs.UserName= tmpObj["UserName"].ToString(); cs.Phone= tmpObj["Phone"].ToString();//向主表插入数据 UserContext.Instance.Insert(cs); } status = true; } catch { status = false; } return status; } #endregion

 

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