MVC 返回json数据

使用 return Json(pageList, JsonRequestBehavior.AllowGet); 返回object

 

使用 return Content(JsonConvert.SerializeObject(pageList, timeConverter)); //返回json字符串

 // GET: Home
        public ActionResult Index()
        {
            return View();
        }
        public ActionResult Json()
        {
            Dictionary<string, object> dic = new Dictionary<string, object>();
            dic.Add("id", 100);
            dic.Add("name", "hello");
            return Json(dic, JsonRequestBehavior.AllowGet);
            //返回结果 { "id":100,"name":"hello"}
        }
        public ActionResult JsonA()
        {
            List<string> mList = new List<string>();
            mList.Add("111"); //添加一个元素
            mList.Insert(1, "laiyanbin");//在index位置添加一个元素  //插入元素
            //mList.RemoveAt(1); //删除下标为index的元素
            //mList.Remove("111");//删除一个值
            //mList.RemoveRange(3, 2);//超出删除的范围会出错 从3开始 删除2个元素
            //注：删除某元素后，其后面的元素下标自动跟进
            // mList.Contains("111");//判断是否存在 111
            //mList.Clear();//清空集合
            mList.Count();//获取元素数目
            return Json(mList, JsonRequestBehavior.AllowGet);
            //返回结果 ["111","laiyanbin"]
        }
        public ActionResult JsonB()
        {
            //test a = new test() { aa = 1, bb = "11", cc = true, dd = "22" };//对象初始化
            //var test=new {Title=“a”,author=”b”};匿名对象
            //
            List<Course> mList = new List<Course>();
            Course cou1 = new Course() {Cno=1,Cname="123",Score=100 };
            mList.Add(cou1);
            Course cou2 = new Course() { Cno = 2, Cname = "456", Score = 1000 };
            mList.Add(cou2);
            return Json(mList, JsonRequestBehavior.AllowGet);
            // 返回结果 [{"Cname":"123","Score":100,"Cno":1}]  添加1个
            //[{"Cname":"123","Score":100,"Cno":1},{"Cname":"456","Score":1000,"Cno":2}] 添加两个

        }
        public ActionResult JsonC()
        {
            DataTable dt = new DataTable();
            dt.Columns.Add();
            dt.Columns.Add();
            dt.Columns.Add();
            dt.Columns.Add();
            //Data  
            dt.Rows.Add(1, "Manish", "Hyderabad", "0000000000");
            dt.Rows.Add(2, "Venkat", "Hyderabad", "111111111");
            dt.Rows.Add(3, "Namit", "Pune", "1222222222");
            dt.Rows.Add(4, "Abhinav", "Bhagalpur", "3333333333");


            return Json(dt, JsonRequestBehavior.AllowGet); //无法输出数据 //只能 输出集合和字典


        }
    }
    public class Course
    {
        public int Cno { get; set; }//课程号
        public string Cname;//课程名 
        public int Score;//成绩 
    }