使用 .Net 5 WebApi,我有一个动作过滤器,我试图简单地读取请求的正文,但是当我读取 request.body 时,正文总是空的。
如何读取请求 OnActionExecuting 的正文文本(例如 Debug.Write(body))并使其不为空?
我的自定义过滤器:
public class MyCustomFilter : IActionFilter
{
public void OnActionExecuting(ActionExecutingContext context)
{
// Do something before the action executes.
Debug.Write(MethodBase.GetCurrentMethod(), context.HttpContext.Request.Path);
var bodyStream = context.HttpContext.Request.BodyReader.AsStream(true);
using (var reader = new StreamReader(bodyStream))
{
var body = reader.ReadToEnd();
Debug.Write(body);
}
}
public void OnActionExecuted(ActionExecutedContext context)
{
// Do something after the action executes.
Debug.Write(MethodBase.GetCurrentMethod(), context.HttpContext.Request.Path);
}
}
我的 API 控制器:
[ServiceFilter(typeof(MyCustomFilter))]
[ApiController]
[Route("[controller]")]
public class WeatherForecastController : ControllerBase
{
private static readonly string[] Summaries = new[]
{
"Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
};
private readonly ILogger<WeatherForecastController> _logger;
public WeatherForecastController(ILogger<WeatherForecastController> logger)
{
_logger = logger;
}
[HttpPost]
public IEnumerable<WeatherForecast> Post([FromBody] SomeData someData)
{
var rng = new Random();
return Enumerable.Range(1, 5).Select(index => new WeatherForecast
{
Date = DateTime.Now.AddDays(index),
TemperatureC = rng.Next(-20, 55),
Summary = Summaries[rng.Next(Summaries.Length)]
})
.ToArray();
}
}
启动.cs
public void ConfigureServices(IServiceCollection services)
{
services.AddControllers();
services.AddScoped<MyCustomFilter>();
}
SomeData 对象
public class SomeData
{
public int Id { get; set; }
public string Name { get; set; }
}
我发布的 Json
{
"id": 1,
"name": "test thing"
}