<%@ Page Language="C#" %>
<%@ Import Namespace="Newtonsoft.Json" %>
<%@ Import Namespace="Newtonsoft.Json.Linq" %>
<%@ Import Namespace="System.Web.Script.Serialization" %>
<%@ Import Namespace="System.Runtime.Serialization.Json" %>
<%@ Import Namespace="System.IO" %>
<script runat="server">
void Page_Load(object sender, EventArgs e)
{
if (Request["m"] == "parse")
{
//Javascript傳來的JSON字串
string jsonString = Request["dict"];
//方法1 用JSON.NET JObject
JObject jo = JObject.Parse(jsonString);
Dictionary<string, string> dict =
jo.Properties().ToDictionary(
p => p.Name,
p => (string)p.Value
);
DumpDictionary("JSON.NET 1", dict);
//方法2 用JSON.NET直接轉Dictionary<string, string>
dict =
JsonConvert.DeserializeObject<Dictionary<string, string>>(jsonString);
DumpDictionary("JSON.NET 2", dict);
//方法3 使用JavaScriptSerializer.Deserialize
JavaScriptSerializer jss = new JavaScriptSerializer();
dict = (Dictionary<string, string>)
jss.Deserialize(jsonString, typeof (Dictionary<string, string>));
DumpDictionary("JavaScriptSerializer", dict);
//DataContractJsonSerializer所要求的Dictionary<string, string>格式是
//[{"Key":"P1", "Value":"很麻煩"}, {"Key":"123", "Value":"不好用"}]
//無法直接解讀前方傳來的Hashtable JSON字串，所以...
//決定放過它(也饒了自己)，只做個簡單驗證
jsonString =
@"[{""Key"":""P1"", ""Value"":""很麻煩""}, {""Key"":""123"", ""Value"":""不好用""}]";
DataContractJsonSerializer dcs =
new DataContractJsonSerializer(typeof(Dictionary<string, string>));
MemoryStream ms = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(jsonString));
dict = dcs.ReadObject(ms) as Dictionary<string, string>;
DumpDictionary("DataContractJsonSerializer", dict);
Response.End();
}
}
void DumpDictionary(string title, Dictionary<string, string> dict)
{
Response.Write(title +
"\r\n===============================\r\n");
Response.Write(
string.Join("\r\n",
dict.Select(
kv =>
string.Format("{0}=>{1}", kv.Key, kv.Value)
).ToArray()));
Response.Write("\r\n\r\n");
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
var hash = {};
//故意使用C#中不可做為Property名稱的字樣
hash["P1"] = "V0";
hash["123"] = "V1";
hash["1-2"] = "V2";
hash["中文"] = "V3";
$.post("HashtableJson.aspx",
{ m: "parse", dict: JSON.stringify(hash) },
function (r) {
alert(r);
});
});
</script>
</head>
<body>
</body>
</html>