Question

我们在控制器类中下载word文档作为字节，我们想将字节数组传递给视图，然后使用Javascript FileSystemObject和Active X Object（Word）打开word docoument。

我不确定如何将字节数组传递给视图。

Answer 1

您需要创建一个返回return File(byte[]);的动作方法，并为您编写JavaScript以定位该新网址。

要将字节数组传递给视图，只需在控制器操作方法中使用return View(byte[])。

Answer 2

使用FileStreamResult：

public FileStreamResult MyView() {

    byte[] bytearr;
    MemoryStream m = new MemoryStream(bytearr);

    return File(m, "mime", "filename");   
}

或者您可以像这样编写自定义ActionResult：

public ActionResult MyView() {
    byte[] bytearr;
    MemoryStream m = new MemoryStream(bytearr)
    return new MemoryStreamResult(m, "mime", bytearr.Length, "filename");
}


public class MemoryStreamResult : ActionResult
{
    private MemoryStream _stream;
    private string _fileName;
    private string _contentType;
    private string _contentLength;



    public MemoryStreamResult(MemoryStream stream, string contentType, string contentLength, string fileName = "none")
    {
         this._stream = stream;
         this._fileName = fileName;
         this._contentType = contentType;
         this._contentLength = contentLength;
    }

    public override void ExecuteResult(ControllerContext context)
    {
         context.HttpContext.Response.Buffer = false;
         context.HttpContext.Response.Clear();
         context.HttpContext.Response.ClearContent();
         context.HttpContext.Response.ClearHeaders();

         context.HttpContext.Response.AddHeader("content-disposition", String.Format("attachment;filename={0}", this._fileName));

         if (!String.IsNullOrEmpty(this._contentLength))
            context.HttpContext.Response.AddHeader("content-length", this._contentLength);

         context.HttpContext.Response.ContentType = this._contentType;

         this._stream.WriteTo(context.HttpContext.Response.OutputStream);
         this._stream.Close();

         context.HttpContext.Response.End();
    }
}

从控制器传输Byte []数组到视图

2 个答案: