WP8解析JSON格式（使用Newtonsoft.Json包）

DOTA2 WebAPI请求返回的格式有两种，一种是XML，一种是JSON，默认是返回JSON格式。

这里举一个简单的解析JSON格式的例子（更多JSON操作）：

{

    "response": {

        "players": [

            {

                "steamid": "76561198092319753",

                "communityvisibilitystate": 1,

                "profilestate": 1,

                "personaname": "偶买噶、Scohura",

                "lastlogoff": 1396240726,

                "profileurl": "http://steamcommunity.com/profiles/76561198092319753/",

                "avatar": "http://media.steampowered.com/steamcommunity/public/images/avatars/f9/f90a468b223389164861722c599318216b388f18.jpg",

                "avatarmedium": "http://media.steampowered.com/steamcommunity/public/images/avatars/f9/f90a468b223389164861722c599318216b388f18_medium.jpg",

                "avatarfull": "http://media.steampowered.com/steamcommunity/public/images/avatars/f9/f90a468b223389164861722c599318216b388f18_full.jpg",

                "personastate": 0

            }

        ]

        

    }

}

解析代码如下，输入Stream流转为String就是上面的文本

        private void praseJSON(Stream json)

        {

            JObject user =JObject.Parse(new StreamReader(json).ReadToEnd());

            JObject userdata = (JObject)((JArray)(user["response"]["players"]))[0];

            //昵称赋值、溢出部分使用省略号代替

            username.Text = userdata["personaname"].ToString();

            username.TextTrimming = TextTrimming.WordEllipsis;

            username.FontSize = (this.Height - 80) / 3;

            //状态赋值

            switch (userdata["personastate"].ToString())

            {

                case "0":

                    if (userdata["communityvisibilitystate"].ToString().Equals("1"))

                    {

                        statusText = "该用户资料未公开";

                    }

                    else

                    {

                        statusText = "离线";

                    }

                    break;

                case "1":

                    statusText = "在线";

                    break;

                case "2":

                    statusText = "忙碌";

                    break;

                case "3":

                    statusText = "离开";

                    break;

                case "4":

                    statusText = "打盹";

                    break;

                case "5":

                    statusText = "想交易";

                    break;

                case "6":

                    statusText = "想游戏";

                    break;

                default: break;

            }

            status.Text = statusText;

            status.FontSize = (this.Height - 80) / 3;

            //状态辅助赋值

            if (!userdata["personastate"].ToString().Equals("0"))

            {

                try

                {

                    extraText = userdata["gameextrainfo"].ToString() + "  游戏中";

                    username.Foreground = new SolidColorBrush(Colors.Green);

                    status.Foreground = new SolidColorBrush(Colors.Green);

                    extra.Foreground = new SolidColorBrush(Colors.Green);

                }

                catch

                {

                    username.Foreground = new SolidColorBrush(Colors.Blue);

                    status.Foreground = new SolidColorBrush(Colors.Blue);

                    extra.Foreground = new SolidColorBrush(Colors.Blue);

                }

            }

            else

            {

                extraText = "上次在线时间：" + Static.UtoD(userdata["lastlogoff"].ToString());

                username.Foreground = new SolidColorBrush(Colors.Gray);

                status.Foreground = new SolidColorBrush(Colors.Gray);

                extra.Foreground = new SolidColorBrush(Colors.Gray);

            }

            extra.Text = extraText;

            //头像赋值

            BitmapImage bitImg = new BitmapImage(new Uri(userdata["avatarfull"].ToString()));

            head.Source = bitImg;

        }

说明：

JSON格式的优势在于，通过JObject["Name"] JArray[Index]就能获得所需的数据，所占的体积小。