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object 序列化

using ?System;

using ?System.Xml;

using ?System.Xml.Serialization;

using ?System.IO;

[XmlRoot( " productCatalog " )]

public ? class ?ProductCatalog?

{

????[XmlElement( " catalogName " )]

???? public ? string ?CatalogName;

????

???? // ?Use?the?date?data?type?(and?ignore?the?time?portion?in?the?

???? // ?serialized?XML).

????[XmlElement(ElementName = " expiryDate " ,?DataType = " date " )]

???? public ?DateTime?ExpiryDate;

????

???? // ?Configure?the?name?of?the?tag?that?holds?all?products,

???? // ?and?the?name?of?the?product?tag?itself.

????[XmlArray( " products " )]

????[XmlArrayItem( " product " )]

???? public ?Product[]?Products;

???? public ?ProductCatalog()?

???? {

???????? // ?Default?constructor?for?deserialization.

????}

???? public ?ProductCatalog( string ?catalogName,?DateTime?expiryDate)?

???? {

???????? this .CatalogName? = ?catalogName;

???????? this .ExpiryDate? = ?expiryDate;

????}

}

public ? class ?Product?

{

????[XmlElement( " productName " )]

???? public ? string ?ProductName;

????

????[XmlElement( " productPrice " )]

???? public ? decimal ?ProductPrice;

????

????[XmlElement( " inStock " )]

???? public ? bool ?InStock;

????

????[XmlAttributeAttribute(AttributeName = " id " ,?DataType = " integer " )]

???? public ? string ?Id;

???? public ?Product()?

???? {

???????? // ?Default?constructor?for?serialization.

????}

???? public ?Product( string ?productName,? decimal ?productPrice)?

???? {

???????? this .ProductName? = ?productName;

???????? this .ProductPrice? = ?productPrice;

????}

}

public ? class ?SerializeXml?

{

???? private ? static ? void ?Main()?

???? {

???????? // ?Create?the?product?catalog.

????????ProductCatalog?catalog? = ? new ?ProductCatalog( " New?Catalog " ,

????????????DateTime.Now.AddYears( 1 ));

????????Product[]?products? = ? new ?Product[ 2 ];

????????products[ 0 ]? = ? new ?Product( " Product?1 " ,? 42.99m );

????????products[ 1 ]? = ? new ?Product( " Product?2 " ,? 202.99m );

????????catalog.Products? = ?products;

???????? // ?Serialize?the?order?to?a?file.

????????XmlSerializer?serializer? = ? new ?XmlSerializer( typeof (ProductCatalog));

????????FileStream?fs? = ? new ?FileStream( " ProductCatalog.xml " ,?FileMode.Create);

????????serializer.Serialize(fs,?catalog);

????????fs.Close();

????????catalog? = ? null ;

???????? // ?Deserialize?the?order?from?the?file.

????????fs? = ? new ?FileStream( " ProductCatalog.xml " ,?FileMode.Open);

????????catalog? = ?(ProductCatalog)serializer.Deserialize(fs);

???????? // ?Serialize?the?order?to?the?Console?window.

????????serializer.Serialize(Console.Out,?catalog);

????????Console.ReadLine();

????}

}

// store?the?object?in?a?binary?format?

[Serializable]?

public ? class ?Item?

????? private ? string ?itemName?;?

????? private ? string ?itemId;?

????? private ? double ?itemPrice?;?

????? private ? long ?itemQuantity;?

????? private ? double ?netAmount;?

????? public ?Item()?

????? {?

????????????ItemName? = ? & quot; & quot;;?

????????????ItemPrice? = ? 0.00 ;?

????????????ItemQuantity? = ? 0 ;?

????????????netAmount? = ? 0.00 ;?

?????} ?

????? public ? string ?ItemName?

????? {?

???????????? get ?

???????????? {?

????????????????? return ?itemName;?

????????????} ?

???????????? set ?

???????????? {?

?????????????????itemName? = ?value;?

????????????} ?

?????} ?

????? public ? string ?ItemId?

????? {?

???????????? get ?

???????????? {?

????????????????? return ?itemId;?

????????????} ?

???????????? set ?

???????????? {?

?????????????????itemId? = ?value;?

????????????} ?

?????} ?

????? public ? double ?ItemPrice?

????? {?

???????????? get ?

???????????? {?

????????????????? return ?itemPrice;?

????????????} ?

???????????? set ?

???????????? {?

?????????????????itemPrice? = ?value;?

????????????} ?

?????} ?

????? public ? long ?ItemQuantity?

????? {?

???????????? get ?

???????????? {?

????????????????? return ?itemQuantity;?

????????????} ?

???????????? set ?

???????????? {?

?????????????????itemQuantity? = ?value;?

????????????} ?

?????} ?

????? public ? double ?NetAmount?

????? {?

???????????? get ?

???????????? {?

????????????????? return ?netAmount;?

????????????} ?

???????????? set ?

???????????? {?

?????????????????netAmount? = ?value;?

????????????} ?

?????} ?

} ?

// Create?a?file?stream?in?which?teh?object?will?store?

FileStream?fstream? = ?File.Create(SERIALIZED_FILE_PATH? + ?@ & quot;\ & quot;? + ?objItem.ItemId);?

// Object?will?store?in?binary?format?

BinaryFormatter?bf? = ? new ?BinaryFormatter();?

// Bind?the?filestream?with?that?of?binaryformatter.?Also?mentioned?the?object?to?save?

bf.Serialize(fstream,?objItem);?

fstream.Close();?

fstream? = ? null ;?

bf? = ? null ;?

// ----------------------------?

FileStream?fstream? = ?File.OpenRead?(serializedFiles.GetValue(fileIndex).ToString()?);?

BinaryFormatter?bf? = ? new ?BinaryFormatter();?

Item?ser? = ?(Item)?bf.Deserialize(fstream);?

posted on 2006-03-23 17:21 夢在天涯閱讀(993) 評論(3) 編輯收藏引用所屬分類: C#/.NET

NET的對象序列化真是好東西，以后要多多利用。

　　在使用.NET的序列化時，碰到過一些問題，還好，有豐富的MSDN可查，沒有什么過不去的檻。在這里，把使用.NET序列化的經(jīng)驗小結一下。
　　1. 基本確認XmlSerializer使用UTF8對序列化的XML文檔編碼。
　　2. XmlSerializer只序列化聲明為public的字段，屬性，或帶返回值的方法。
　　3. 如果要序列化屬性，那么該屬性必須是可讀寫的，即必須包含get和set，而不能是readonly或writeonly。
　　4. XmlAttribute，XmlAnyAttribute不能與XmlElement，XmlText，XmlAnyElement，XmlArray，XmlArrayItem一起使用。
　　5. XmlRoot只能用于一個類，XmlType可用于所有類。
　　6. 不同的類的XmlType不能相同，除非使用NameSpaces區(qū)分。

相關鏈接：
　　● 在.NET中實現(xiàn)對象序列化
　　● 對象序列化：使用System.Xml.Serialization命名空間
　　● 對象序列化：使用XmlSerializer走完最后一步回復更多評論

# re: object 序列化 2008-03-08 12:39 愛情白面包

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# re: object 序列化 2006-04-14 12:09 夢在天涯

# re: object 序列化 2006-04-14 16:17 夢在天涯

# re: object 序列化 2008-03-08 12:39 愛情白面包

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object 序列化

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