应用程序有时需要以对象的形式在磁盘上存储数据,FrameWork有两个可用的实现方式:
一:System.Runtime.Serialization.Formatters.Binarry这个名称空间包含了BinarryFormatter类,它能把对象序列化为二进制数据,把二进制数据序列化为对象
二:System.Runtime.Serialization.Formatters.Soap:这个名称空间中包含了类SoapFormat类,它能把对象序列化为Soap格式的XML数据
以上两个类都实现了IFormatter接口,IFormatter接口提供了下面两个方法:
BinaryFormatter序列化、反序列化对象
[Serializable]
class Test
{
public long Id;
public string Name;
public double Price; [NonSerialized]
string Notes; public Test(long id, string name, double price, string notes)
{
this.Id = id;
this.Name = name;
this.Price = price;
this.Notes = notes;
} public override string ToString()
{
return string.Format("{0}:{1} (${2:F2}) {3}", Id, Name, Price, Notes);
}
static void Main(string[] args)
{
List<Test> tests = new List<Test>();
tests.Add(new Test(, "苹果", 5.5, "烟台红富士"));
tests.Add(new Test(, "菠萝", 3.5, "海南菠萝"));
tests.Add(new Test(, "樱桃", , "智利樱桃")); //用于序列化和反序列化的对象
IFormatter serializer = new BinaryFormatter(); //开始序列化
FileStream saveFile = new FileStream("Test.txt", FileMode.Create, FileAccess.Write);
serializer.Serialize(saveFile, tests);
saveFile.Close(); //反序列化
FileStream loadFile = new FileStream("Test.txt", FileMode.Open, FileAccess.Read);
List<Test> tests2 = serializer.Deserialize(loadFile) as List<Test>;
foreach (Test item in tests2)
{
Console.WriteLine(item);
}
Console.ReadKey(); }