c# - 如何获取 JSON 字符串值？

Question

var responseFromServer =
  // lines split for readability
  "{\"flag\":true,\"message\":\"\",\"result\":{\"ServicePermission\":true,"
  +  "\"UserGroupPermission\":true}}";
var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
var responseValue = serializer.DeserializeObject(responseFromServer);

responseFromServer值是获取一个webservice，然后如何获取JSON字符串值，比如"flag"，"Servicepermission"？？

affix:对不起，用c#做这个。

Answer 1

注意:JavaScriptSerializer 实际上是我测试过的最慢的 JSON 序列化程序。如此之多，以至于我不得不将其从 my benchmarks 中删除因为它花费的时间太长(慢了 100 倍以上)。

无论如何，使用 ServiceStack.Text's JSON Serializer 很容易解决这个问题:

var response = JsonSerializer.DeserializeFromString<Dictionary<string,string>>(responseFromServer);
var permissions = JsonSerializer.DeserializeFromString<Dictionary<string,string>>(response["result"]);
Console.WriteLine(response["flag"] + ":" + permissions["ServicePermission"]);

为了完整起见，这也适用于 ServiceStack.Text.JsonSerializer:

public class Response
{
    public bool flag { get; set; }
    public string message { get; set; }
    public Permisions result { get; set; }
}
public class Permisions
{
    public bool ServicePermission { get; set; }
    public bool UserGroupPermission { get; set; }
}

var response = JsonSerializer.DeserializeFromString<Response>(responseFromServer);
Console.WriteLine(response.flag + ":" + response.result.ServicePermission);