public static void SerializePerformanceTesting()
{
var options = new System.Text.Json.JsonSerializerOptions {
WriteIndented = true
};
List <Team> teams = new List <Team>();
for (int i = 0; i < 1000000; i++)
{
teams.Add(WorkWithSerialize.MakeOneTeam());
}
System.Diagnostics.Stopwatch watch = new System.Diagnostics.Stopwatch();
watch.Start();
var newtonsoft = Newtonsoft.Json.JsonConvert.SerializeObject(teams);
Console.WriteLine($"Serialize Newtonsoft {watch.ElapsedMilliseconds} ms");
watch.Restart();
Newtonsoft.Json.JsonConvert.SerializeObject(teams, Newtonsoft.Json.Formatting.Indented);
Console.WriteLine($"Serialize Newtonsoft {watch.ElapsedMilliseconds} ms (pretty json)");
watch.Restart();
var netCore = System.Text.Json.JsonSerializer.Serialize(teams);
Console.WriteLine($"Serialize System.Text.Json {watch.ElapsedMilliseconds} ms");
watch.Restart();
System.Text.Json.JsonSerializer.Serialize(teams, options);
Console.WriteLine($"Serialize System.Text.Json {watch.ElapsedMilliseconds} ms (pretty json)");
watch.Restart();
List <Team> teamsNetCore = System.Text.Json.JsonSerializer.Deserialize <List <Team> >(netCore);
Console.WriteLine($"Deserialize System.Text.Json {watch.ElapsedMilliseconds} ms");
watch.Restart();
List <Team> teamsNewtonsoft = Newtonsoft.Json.JsonConvert.DeserializeObject <List <Team> >(newtonsoft);
Console.WriteLine($"Deserialize Newtonsoft {watch.ElapsedMilliseconds} ms");
watch.Stop();
}
private void InitPhotos()
{
photoDs = new PhotosDataSource {
HttpFactory = HttpFactory
};
photoOp = new GridOptions
{
Datasource = photoDs,
EnablePagination = true,
PaginationPageSize = 20,
SuppressRowDeselection = true,
RowModelType = RowModelType.Infinite,
RowSelection = RowSelection.Multiple,
SuppressCellSelection = true,
EnableBrowserTooltips = true
};
photoEv = new GridEvents
{
SelectionChanged = (Action <RowNode[]>)(nodes =>
{
Console.WriteLine("Photo Selected: " + (nodes?.Length == 0
? "none" : string.Join(",", nodes.Select(n => n.Id))));
if ((nodes?.Length ?? 0) == 0)
{
thumbnails = null;
}
else
{
var opts = new System.Text.Json.JsonSerializerOptions
{
PropertyNameCaseInsensitive = true,
};
var photos = System.Text.Json.JsonSerializer.Deserialize <Photo[]>(
System.Text.Json.JsonSerializer.Serialize(
nodes.Select(n => n.Data), opts), opts);
thumbnails = photos.Select(p => p.ThumbnailUrl);
}
StateHasChanged();
}),
};
}
//-------------------------------------------------------------------------------
public void Save()
{
var options = new System.Text.Json.JsonSerializerOptions
{
// Pretty-print so it can be edited easily by humies.
WriteIndented = true,
};
string text = System.Text.Json.JsonSerializer.Serialize(fields, options);
ignoreFileChangesAt = DateTime.Now;
try
{
File.WriteAllText(SettingsFilePath, text);
}
catch (IOException)
{
// Couldn't save settings. Probably should tell someone about this.
// Oh well...
}
}
public bool guardarUsuario(Usuario usuario)
{
List <Usuario> usuarios;
String jsonString = File.ReadAllText(this.path);
usuarios = System.Text.Json.JsonSerializer.Deserialize <List <Usuario> >(jsonString);
usuarios.Add(usuario);
var options = new System.Text.Json.JsonSerializerOptions
{
WriteIndented = true
};
jsonString = System.Text.Json.JsonSerializer.Serialize(usuarios, options);
File.WriteAllText(path, jsonString);
return(true);
}
public void RSAParametersJsonSerialization()
{
// Arrange
CryptographyFactory f = new CryptographyFactory();
System.Security.Cryptography.RSAParameters rsaParameters;
using (System.Security.Cryptography.RSACryptoServiceProvider csp = new System.Security.Cryptography.RSACryptoServiceProvider())
{
rsaParameters = csp.ExportParameters(true);
}
// Act
System.Text.Json.JsonSerializerOptions opts = new System.Text.Json.JsonSerializerOptions();
opts.WriteIndented = true;
string json = System.Text.Json.JsonSerializer.Serialize(rsaParameters.ToDictionary(), opts);
Console.WriteLine(json);
// Assert
Assert.NotNull(json);
}
private void AddConverters(ref System.Text.Json.JsonSerializerOptions settings)
{
if (Converters != null && Converters.Any())
{
foreach (var converter in Converters.Where(_ => _ != null))
{
var assembly = AppDomain.CurrentDomain.GetAssemblies().AsEnumerable().Where(_ => _.FullName?.Split(',')[0] == converter.Assembly).FirstOrDefault();
if (null != assembly)
{
try
{
Type converterType = System.Reflection.Assembly.LoadFrom(assembly.Location).GetType(converter.Type);
if (typeof(System.Text.Json.Serialization.JsonConverter).IsAssignableFrom(converterType))
{
System.Text.Json.Serialization.JsonConverter obj = null;
try
{
// try parms object[] parameters
obj = (System.Text.Json.Serialization.JsonConverter)Activator.CreateInstance(
converterType,
new object[] {
new Microsoft.AspNetCore.Http.HttpContextAccessor()
});
}
catch
{
// Try parameterless ctor
obj = (System.Text.Json.Serialization.JsonConverter)Activator.CreateInstance(converterType);
}
if (obj != null)
{
settings.Converters.Add(obj);
}
}
}
catch { }
}
}
}
}
/// <summary>
/// 使用指定路由和路由处理程序初始化 <see cref="AshxRouteData"/> 类的新实例。
/// </summary>
/// <param name="routeContext">封装与所定义路由匹配的 HTTP 请求的相关信息。</param>
/// <param name="jsonOptions">json配置对象</param>
public AshxRouteData(RouteContext routeContext, System.Text.Json.JsonSerializerOptions jsonOptions)
{
this.JsonOptions = jsonOptions;
this.RouteContext = routeContext;
this.GetRouteData = routeContext.RouteData;
this.HttpContext = routeContext.HttpContext;
this.HttpContext.Request.RouteValues = this.GetRouteData.Values;
//this.Service = this.HttpContext.RequestServices;
this.IsAshx = true;
try
{
this.Area = GetRequiredString("area");
this.Controller = GetRequiredString("controller");
this.Action = GetRequiredString("action");
}
catch (Exception)
{
throw HttpContext.AddHttpException(404, string.Format(System.Globalization.CultureInfo.CurrentCulture, "找不到该路由的控制器,，URL: {0}", new object[] { this.HttpContext.Request.Path }));
}
}
/// <summary>
/// (Serialize)JSON 序列化
/// </summary>
/// <param name="implType"></param>
/// <param name="value"></param>
/// <param name="inputType"></param>
/// <param name="writeIndented"></param>
/// <param name="ignoreNullValues"></param>
/// <returns></returns>
public static string SJSON(JsonImplType implType, object?value, Type?inputType = null, bool writeIndented = false, bool ignoreNullValues = false)
{
switch (implType)
{
case JsonImplType.SystemTextJson:
var options = new SJsonSerializerOptions
{
Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping,
WriteIndented = writeIndented,
IgnoreNullValues = ignoreNullValues
};
return(SJsonSerializer.Serialize(value, inputType ?? value?.GetType() ?? typeof(object), options));
default:
var formatting = writeIndented ? Formatting.Indented : Formatting.None;
var settings = ignoreNullValues ? new JsonSerializerSettings
{
NullValueHandling = NullValueHandling.Ignore
} : null;
return(SerializeObject(value, inputType, formatting, settings));
}
}
public async Task InvokeAsync(HttpContext context)
{
try
{
await _next(context);
}
catch (System.Exception ex)
{
_logger.LogError(ex, ex.Message);
context.Response.ContentType = "application/json";
context.Response.StatusCode = (int)System.Net.HttpStatusCode.InternalServerError;
var response = _env.IsDevelopment()
? new ApiException((int)HttpStatusCode.InternalServerError, ex.Message, ex.StackTrace.ToString())
: new ApiException((int)HttpStatusCode.InternalServerError);
var options = new System.Text.Json.JsonSerializerOptions {
PropertyNamingPolicy = System.Text.Json.JsonNamingPolicy.CamelCase
};
var json = System.Text.Json.JsonSerializer.Serialize(response, options);
await context.Response.WriteAsync(json);
}
}
/// <summary>
/// Deserialize the JSON stream into a .Net object.
/// For .Net Core/.Net 5.0 uses System.Text.Json
/// for .Net 4.5.2 uses System.Runtime.Serialization.Json
/// </summary>
/// <param name="type">Object type</param>
/// <param name="stream">JSON stream</param>
/// <returns>object of type <typeparamref name="type"/></returns>
private static object DeserializeJson(Type type, Stream stream)
{
#if NETCOREAPP
var options = new System.Text.Json.JsonSerializerOptions
{
PropertyNameCaseInsensitive = true,
IgnoreNullValues = true,
};
options.Converters.Add(new CefSharp.Internals.Json.JsonEnumConverterFactory());
// TODO: use synchronus Deserialize<T>(Stream) when System.Text.Json gets updated
var memoryStream = new MemoryStream((int)stream.Length);
stream.CopyTo(memoryStream);
return(System.Text.Json.JsonSerializer.Deserialize(memoryStream.ToArray(), type, options));
#else
var settings = new System.Runtime.Serialization.Json.DataContractJsonSerializerSettings();
settings.UseSimpleDictionaryFormat = true;
var dcs = new System.Runtime.Serialization.Json.DataContractJsonSerializer(type, settings);
return(dcs.ReadObject(stream));
#endif
}
