如何在C#中将JSON响应转换为XML

Question

我有一个JSON格式的API响应，如何在c#中将其转换为XML响应

我不知道将JSON转换为XML 的脚本的位置

public static async Task<List<PointMaster>> ExecuteTest(string query)
{
string connStrResult = ConfigurationManager.ConnectionStrings["PostGresConnection"].ConnectionString;
NpgsqlConnection connection;
NpgsqlCommand command;
NpgsqlDataReader reader;
List<PointMaster> master = new List<PointMaster>();
connection = new NpgsqlConnection(connStrResult);
connection.Open();
command = new NpgsqlCommand(query, connection);
reader = command.ExecuteReader();
while (await reader.ReadAsync())
{
PointMaster point = new PointMaster
{
point_id        = Convert.ToString(reader["point_id"]),
point_type      = (string)reader["point_type"],
sp_geometry     = (PostgisPoint)(reader["sp_geometry"]),
msid            = Convert.ToInt32(reader["msid"]),
};
master.Add(point);
}
return master;
}

我希望将该响应更改为XML

Answer 1

转到Global.asax，但Application_Start()中有以下代码：

GlobalConfiguration.Configuration.Formatters.XmlFormatter.UseDataContractSerializer = true;

或者转到WebApiConfig.cs并将此行放入Register(HttpConfiguration config):

config.Formatters.XmlFormatter.MediaTypeMappings.Add(  
new QueryStringMapping("type", "xml", new MediaTypeHeaderValue("application/xml")));