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将非常大的字符串数据（100 Mb）保存到 Xml 时，我遇到了一个非常奇怪的内存不足异常。我不确定。有人对正在发生的事情有任何想法吗？而且我仅限于使用 2.0 框架。

Exception Stack:

System.OutOfMemoryException was unhandled
Message=Exception of type 'System.OutOfMemoryException' was thrown.
Source=mscorlib
StackTrace:

at System.IO.MemoryStream.set_Capacity(Int32 value)
at System.IO.MemoryStream.EnsureCapacity(Int32 value)
at System.IO.MemoryStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at System.IO.StreamWriter.Flush(Boolean flushStream, Boolean flushEncoder)
at System.IO.StreamWriter.Write(Char value)
at System.Xml.XmlTextWriter.InternalWriteEndElement(Boolean longFormat)
at System.Xml.XmlTextWriter.WriteEndElement()
at System.Xml.XmlWriter.WriteElementString(String localName, String ns, String

示例代码：

StreamWriter streamWriter = new StreamWriter( stream );
XmlTextWriter textWriter = new XmlTextWriter(streamWriter);
XmlWriter writer = textWriter;
writer.WriteStartDocument( true );
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1 回答 1

1

尽管您的代码没有显示这一点，但您可能不是，使用“使用”正确打开和关闭 XMLWriter 流。如果您真的想写入内存，请传入一个 StringBuilder。尝试这个： -

using System;
using System.Text;
using System.Xml;
public class Test {
    static void Main()
    { 
        XmlWriterSettings settings = new XmlWriterSettings();
        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);
}

}

于 2012-12-12T12:37:45.240 回答