ASP .NET Controller返回类型

返回类型

return View(model); 即返回html
return Json("String"); 返回Json格式的数据
return File(new byte[] { }, "application/json"); 返回文件(下载),也可以不使用这种方法下载文件

例子:下载excle

ShopDevelopment. ExportImportUtil
httpContext.Response.BinaryWrite(streamName.ToArray()); 完成下载功能
输入excle的内容为html即可,可以自动转为excle格式
关键类:System.Web. HttpContextBase 也可以采用其他帮助库

public static void ExportExcel(HttpContextBase httpContext, string name, MemoryStream streamName)
{
    httpContext.Response.ContentType = "applicationnd.ms-excel";
    name = HttpUtility.UrlEncode(name,System.Text.Encoding.GetEncoding("UTF-8"));
    httpContext.Response.AddHeader("Content-Disposition", string.Format("attachment;filename={0}", name));
    httpContext.Response.Clear();
    httpContext.Response.BinaryWrite(streamName.ToArray());
    httpContext.Response.End();
}

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