我正在尝试使用VS2019 Web应用程序模板,玩弄新的System.Text.Json:
有天气预报类声明如下:
using System;
namespace WebApplication4
{
public class WeatherForecast
{
public DateTime Date { get; set; }
public int TemperatureC { get; set; }
public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
public string Summary { get; set; }
}
}
示例方法:
[HttpGet("Test1")]
public WeatherForecast Test1()
{
WeatherForecast forecast = new WeatherForecast();
return forecast;
}
这段代码可以正常工作,返回:
{"date":"0001-01-01T00:00:00","temperatureC":0,"temperatureF":32,"summary":null}但是这段代码:
public class TestClass
{
public WeatherForecast Forecast;
}
[HttpGet("Test")]
public TestClass Test()
{
WeatherForecast forecast = new WeatherForecast();
TestClass test = new TestClass()
{
Forecast = forecast
};
return test;
}
返回空的JSON对象: {}
如何序列化嵌套对象?