controller 中定义以下方法:
public JsonResult UpdateSingle(int id, string actionName, stringactionValue) { var res = newJsonResult(); //var value = "actionValue"; //db.ContextOptions.ProxyCreationEnabled = false; var list = (from a indb.Articles select new{ name =a.ArtTitle, yy =a.ArtPublishTime }).Take(5); //记得这里要select new 否则会报错:序列化类型 System.Data.Entity.DynamicProxies XXXXX 的对象时检测到循环引用。 //不select new 也行的加上这句 //db.ContextOptions.ProxyCreationEnabled = false; res.Data = list;//返回列表 var name = "小华"; var age = "12"; var name1 = "小华"; var age1 = "12"; res.Data = new object[] { new { name, age }, new { name1, age1 } };//返回一个自定义的object数组 var person = new { Name = "小明", Age = 22, Sex = "男"}; res.Data = person;//返回单个对象; res.Data = "这是个字符串";//返回一个字符串,意义不大; res.JsonRequestBehavior = JsonRequestBehavior.AllowGet;//允许使用GET方式获取,否则用GET获取是会报错。 returnres; }
页面调用:
<a href="javascript:void(0);" onclick="javascript:upclick(this);">Click Me</a> <script type="text/javascript">function upclick(o) { var obj =$(o); alert(obj); $.ajax({ url: "/Articles/UpdateSingle?ran=" +Math.random(), type: "GET", dataType: "json", data: { id: obj.attr("id"), actionName: obj.attr("actionName"), actionValue: obj.attr("actionValue") }, success: function (data) { //if (data.result == "True") { //alert("修改成功!"); //} //if (obj.attr("actionName") == "ArtVerify") { //} $(o).html(data[0].name); obj.attr("actionValue", data[0].result); } }) } </script>
以上是在mvc中使用,在webform中怎么使用呢?
在webform中要引用Newtonsoft.Json.dll;
当然你也可以自己拼接字符串。
protected void Page_Load(objectsender, EventArgs e) { var customer = new customer { name = "李华", sex = "男"}; var customer1 = new customer { name = "小芳", sex = "女"}; var li = new List<customer>(); li.Add(customer); li.Add(customer1); var list =Newtonsoft.Json.JavaScriptConvert.SerializeObject(li); var tt = "[{"name":"李华","sex":"男"},{"name":"小芳","sex":"女"}]"; //new Newtonsoft.Json.JsonSerializer()..(customer); Response.Write(tt); Response.End(); } public classcustomer { public string name { get; set; } public string sex { get; set; } }
页面方法:
<p> <a href="javascript:void(0)" onclick="javascript:getJsonData();">GetJsonData</a> </p> <div id="dataDiv">ggg </div> <script type="text/javascript">function getJsonData() { var str = ""; $.getJSON("/Json.aspx", function (data) { var tt = ""; $.each(data, function (k, v) { $.each(v, function (kk, vv) { tt += kk + ":" + vv + "<br/>"; }); }); $("#dataDiv").html(tt); }); } </script>
显示结果: