controller 中定义以下方法:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
{ var res = new JsonResult(); //var value = "actionValue"; //db.ContextOptions.ProxyCreationEnabled = false; var list = (from a in db.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。 return res; } |
页面调用:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
<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。
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
|
protected void Page_Load( object sender, 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 class customer { public string name { get ; set ; } public string sex { get ; set ; } } |
页面方法:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
<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:
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://blog.csdn.net/weizengxun/article/details/6845455