我想追加使用ActionFilter页面上一些HTML和Javascript内容Asp.Net的Core 2。
在MVC中,它的工作与
filterContext.HttpContext.Response.Write(stringBuilder.ToString());
但在核心它不工作。
我试着用这个来实现:
filterContext.HttpContext.Response.WriteAsync(stringBuilder.ToString());
但它使整个页面为空白。
我在寻找nopCommerce 4.0,其建立Asp.Core 2.0解决方案
你可以尝试这样的事情
在INopStartup.Configure(IApplicationBuilder应用程序)的自定义实现
application.Use(async (context, next) =>
{
using (var customStream = new MemoryStream())
{
// Create a backup of the original response stream
var backup = context.Response.Body;
// Assign readable/writeable stream
context.Response.Body = customStream;
await next();
// Restore the response stream
context.Response.Body = backup;
// Move to start and read response content
customStream.Seek(0, SeekOrigin.Begin);
var content = new StreamReader(customStream).ReadToEnd();
// Write custom content to response
await context.Response.WriteAsync(content);
}
});
而不是在您的自定义ResultFilterAttribute
public class MyAttribute : ResultFilterAttribute
{
public override void OnResultExecuted(ResultExecutedContext context)
{
try
{
var bytes = Encoding.UTF8.GetBytes("Foo Bar");
// Seek to end
context.HttpContext.Response.Body.Seek(context.HttpContext.Response.Body.Length, SeekOrigin.Begin);
context.HttpContext.Response.Body.Write(bytes, 0, bytes.Length);
}
catch
{
// ignored
}
base.OnResultExecuted(context);
}
}
而结果
希望这有助于进入正确的方式。
静态和异步方法HttpResponseWritingExtensions.WriteAsync
是目前实现这一目标的首选方式。
目前,您可以在装配大会Microsoft.AspNetCore.Http.Abstractions
找到它。
using Microsoft.AspNetCore.Http;
[HttpGet("test")]
public async Task GetTest()
=> await HttpResponseWritingExtensions.WriteAsync(this.Response, "Hello World");
Response.Body.Write取一个字节数组作为参数。
public void OnGet() {
var text = "<h1>Hello, Response!</h1>";
byte[] data = System.Text.Encoding.UTF8.GetBytes(text);
Response.Body.Write(data, 0, data.Length);
}
或异步版本:
public async Task OnGetAsync() {
var text = "<h1>Hello, Async Response!</h1>";
byte[] data = System.Text.Encoding.UTF8.GetBytes(text);
await Response.Body.WriteAsync(data, 0, data.Length);
}