如何在C＃中将JSON响应转换为XML？

Question

我有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，但遵循Application_Start()中的代码：

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

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

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