XML序列化:64Bit Windows7, oct处理器核心，32GB RAM和OutOfMemory异常

本文关键字：32GB RAM 异常 OutOfMemory 核心 oct 序列化 64Bit Windows7 XML 处理器 | 更新日期: 2023-09-27 18:14:24

在处理500 MB数据并尝试序列化它时，

GetStringForStringBuilder(String value, Int32 startIndex, Int32 length, Int32 capacity)

抛出System.OutOfMemoryException

XML序列化器:

StringWriter xmlStr = new StringWriter();
XmlTextWriter twa = new XmlTextWriter(xmlStr);
lock(myLock)
{
    mySerializer.WriteObject(twa, myHandlerMap); // OutOfMemoryException
    twa.Flush();
    twa.Close();
    set.StringBuffer = xmlStr.ToString();
    xmlStr.Dispose()
}

读完下面链接的最后一段后:http://blogs.msdn.com/b/vsofficedeveloper/archive/2008/10/10/stringbuilder-outofmemoryexception.aspx

我怀疑如果没有MS修复，是否有可能解决这个问题?

异常跟踪:

RemoteStackTrace:    
   at System.String.GetStringForStringBuilder(String value, Int32 startIndex, Int32 length, Int32 capacity)
   at System.Text.StringBuilder.GetNewString(String currentString, Int32 requiredLength)
   at System.Text.StringBuilder.Append(Char value)
   at System.IO.StringWriter.Write(Char value)
   at System.Xml.XmlTextWriter.InternalWriteEndElement(Boolean longFormat)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContextComplex.WriteString(XmlWriterDelegator xmlWriter, String value, XmlDictionaryString name, XmlDictionaryString ns)
   at WriteKeyValueOfstringstringToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )
   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at WriteArrayOfKeyValueOfstringstringToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , CollectionDataContract )
   at System.Runtime.Serialization.CollectionDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeAndVerifyType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, Boolean verifyKnownType, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithXsiType(XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle objectTypeHandle, Type objectType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle, Type declaredType)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContextComplex.InternalSerializeWithSurrogate(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerializeReference(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at WriteGenericViewingMPStateToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )
   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeAndVerifyType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, Boolean verifyKnownType, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithXsiType(XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle objectTypeHandle, Type objectType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle, Type declaredType)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContextComplex.InternalSerializeWithSurrogate(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerializeReference(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteSerializationInfo(XmlWriterDelegator xmlWriter, Type objType, SerializationInfo serInfo)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteISerializable(XmlWriterDelegator xmlWriter, ISerializable obj)
   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContextComplex.InternalSerializeWithSurrogate(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerializeReference(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at WriteKeyValueOfstringStateSerializeSetjJgp3TWnToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )
   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at WriteArrayOfKeyValueOfstringStateSerializeSetjJgp3TWnToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , CollectionDataContract )
   at System.Runtime.Serialization.CollectionDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.DataContractSerializer.InternalWriteObjectContent(XmlWriterDelegator writer, Object graph)
   at System.Runtime.Serialization.DataContractSerializer.InternalWriteObject(XmlWriterDelegator writer, Object graph)
   at System.Runtime.Serialization.XmlObjectSerializer.WriteObjectHandleExceptions(XmlWriterDelegator writer, Object graph)

请。让我知道如何解决这个问题?

XML序列化:64Bit Windows7, oct处理器核心，32GB RAM和OutOfMemory异常

500MB对于xml来说是相当大的，听到它不高兴我并不感到惊讶。如果可能的话，我会考虑一些基于流的，即XmlWriter/XmlReader。在没有更多细节的情况下，尚不清楚这在中国是否可行。或者，考虑另一种格式!认真……XML不能很好地处理大尺寸。

首先要做的是……不要使用字符串(或StringBuilder);而是直接通过FileStream而不是XmlReader/XmlWriter从/磁盘读/写。

我更愿意将其直接序列化到一个文件中。500mb是一个相当大的数据，当将它序列化为"chatty"xml时将会得到更多。

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