我正在创建一个返回 XML 的 ASHX,但是当我这样做时它需要一个路径
XmlWriter writer = XmlWriter.Create(returnXML, settings)
但是returnXML 现在只是一个空字符串(我猜这行不通),但是我需要将 XML 写入可以作为响应文本发送的内容。我尝试了 XmlDocument,但它给了我一个期望字符串的错误。我在这里想念什么?
如果您真的想写入内存,请像这样传入 aStringWriter
或 a StringBuilder
:
using System;
using System.Text;
using System.Xml;
public class Test
{
static void Main()
{
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;
StringBuilder builder = new StringBuilder();
using (XmlWriter writer = XmlWriter.Create(builder, settings))
{
writer.WriteStartDocument();
writer.WriteStartElement("root");
writer.WriteStartElement("element");
writer.WriteString("content");
writer.WriteEndElement();
writer.WriteEndElement();
writer.WriteEndDocument();
}
Console.WriteLine(builder);
}
}
但是,如果您想直接将其写入响应,则可以传入HttpResponse.Output
which is aTextWriter
代替:
using (XmlWriter writer = XmlWriter.Create(Response.Output, settings))
{
// Write into it here
}
我这边缺少一些东西:刷新 XmlWriter 的缓冲区:
static void Main()
{
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;
StringBuilder builder = new StringBuilder();
using (XmlWriter writer = XmlWriter.Create(builder, settings))
{
writer.WriteStartDocument();
writer.WriteStartElement("root");
writer.WriteStartElement("element");
writer.WriteString("content");
writer.WriteEndElement();
writer.WriteEndElement();
writer.WriteEndDocument();
writer.Flush();
}
Console.WriteLine(builder);
}
StringBuilder xml = new StringBuilder();
TextWriter textWriter = new StringWriter(xml);
XmlWriter xmlWriter = new XmlTextWriter(textWriter);
然后,使用 xmlWriter 完成所有的 xml 写入,并将其直接写入 StringBuilder。
编辑:感谢 Jon Skeet 的评论:
StringBuilder xml = new StringBuilder();
XmlWriter xmlWriter = XmlWriter.Create(xml);
最好的方法是直接写入响应输出流。它是 ASP.NET 内置的流,允许您将任何输出写入流,在这种情况下,您可以将 XML 写入它。