我已经从mvc 3迁移到mvc 4并遇到了以下问题.
@using InvoiceDocflow.Controllers
@{
Response.ContentType = "text/xml";
}
<?xml version="1.1" encoding="UTF-8" ?>
<dc>
@foreach (var dcLink in (IEnumerable<DcLink>)ViewData["SupportedDcs"])
{
<link rel="@dcLink.RelUri.ToString()" href="@dcLink.DcUri.ToString()" />
}
</dc>
这是我的观点.我的布局只有一行
@RenderBody()
所以在mvc 3<？xml version =“1.1”encoding =“UTF-8”？>出现在第一行,但现在,它出现在第二行,第一行留空.
我可以在第一行渲染它,因为它在mvc 3中吗？
顺便说说.
@using InvoiceDocflow.Controllers
@{
Response.ContentType = "text/xml";
}<?xml version="1.1" encoding="UTF-8" ?>
这可行,但这不是我想做的事情.
解决方法
临时修复？ ActionFilter并删除空的第一行？显然,如果合适,您还可以对响应进行其他缩小.
public class TranslationFilter : MemoryStream
{
private Stream filter = null;
public TranslationFilter(HttpResponseBase httpResponseBase)
{
filter = httpResponseBase.Filter;
}
public override void Write(byte[] buffer,int offset,int count)
{
var response = UTF8Encoding.UTF8.GetString(buffer);
// remove all newlines
response = response.Replace(System.Environment.NewLine,"");
/* remove just first empty line
if (response.Substring(0,2) == "\r\n")
{
response = response.Substring(2,response.Length - 2);
} */
filter.Write(UTF8Encoding.UTF8.GetBytes(response),offset,UTF8Encoding.UTF8.GetByteCount(response));
}
}
public class ResponseFilter : ActionFilterAttribute
{
public ResponseFilter()
{
}
public override void OnResultExecuted(ResultExecutedContext filterContext)
{
base.OnResultExecuted(filterContext);
filterContext.HttpContext.Response.Filter = new TranslationFilter(filterContext.HttpContext.Response);
}
}
[ResponseFilter]
public ActionResult Index()
{
return View();
}
