在 C# 中,为什么我无法访问该流?
我从 NHibernate 3 Cookbook(一本很棒的书,顺便说一句)中得到了这段代码,虽然我在勘误表中找不到任何关于它的内容。我收到错误“无法访问关闭的流”:
var settings = new XmlWriterSettings { Indent = true };
var serializer = new XmlSerializer(typeof(HbmMapping)); // todo: probably should abstract this out, at least optionally
using (var memStream = new MemoryStream(2048))
using (var xmlWriter = XmlWriter.Create(memStream, settings))
{
serializer.Serialize(xmlWriter, hbmMapping);
memStream.Flush();
memStream.Position = 0;
using (var sr = new StreamReader(memStream))
{
return sr.ReadToEnd();
}
}
该错误在 sr.ReadToEnd() 行上引发。
I got this block of code from the NHibernate 3 Cookbook (an excellent book, btw), and while I couldn't find anyting in the errata about it. I'm getting the error "Cannot access a closed stream":
var settings = new XmlWriterSettings { Indent = true };
var serializer = new XmlSerializer(typeof(HbmMapping)); // todo: probably should abstract this out, at least optionally
using (var memStream = new MemoryStream(2048))
using (var xmlWriter = XmlWriter.Create(memStream, settings))
{
serializer.Serialize(xmlWriter, hbmMapping);
memStream.Flush();
memStream.Position = 0;
using (var sr = new StreamReader(memStream))
{
return sr.ReadToEnd();
}
}
The error is thrown on the sr.ReadToEnd() line.
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毕竟发现了类似的问题,为什么处置 StreamReader 会使流不可读? .基本上,我删除了读者周围的使用,一切都很好。
Found a similar problem after all, Why disposing StreamReader makes a stream unreadable? . Basically, I removed the using that was around the reader and all is well.