对实体类做标记
[DataContract] 标记在class前。
[DataMember] 标记在需要保存的属性前。
[DataContract]
public class Car
{
[DataMember]
public string name;
[DataMember]
double power;
[DataMember]
List<Wheel> wheels;
}
拷贝这两个函数
保存：保存文件到xml，文件目录和程序目录相同，文件名自定。
读取：从指定文件名读取。
static void SaveViaDataContractSerialization<T>(T serializableObject, string filepath)
{
var serializer = new DataContractSerializer(typeof(T));
var settings = new XmlWriterSettings()
{
Indent = true,
IndentChars = "\t",
};
var writer = XmlWriter.Create(filepath, settings);
serializer.WriteObject(writer, serializableObject);
writer.Close();
}
static T LoadViaDataContractSerialization<T>(string filepath)
{
var fileStream = new FileStream(filepath, FileMode.Open);
var reader = XmlDictionaryReader.CreateTextReader(fileStream, new XmlDictionaryReaderQuotas());
var serializer = new DataContractSerializer(typeof(T));
T serializableObject = (T)serializer.ReadObject(reader, true);
reader.Close();
fileStream.Close();
return serializableObject;
}
读取方法
使用上面两个方法来读取和存储
// Save single object
Car bmw = new Car("BMW", 200, new List<string> { "Left", "Right" }); // create object
SaveViaDataContractSerialization(bmw, "bmw.xml"); // save object
bmw = null; // delete object
bmw = LoadViaDataContractSerialization<Car>("bmw.xml"); // reload object
Console.WriteLine(bmw.ToString()); // print object
// Save list of objects
List<Car> carList = new List<Car> // create object list
{
new Car("Porsche", 250, new List<string> { "Left" }),
new Car("Mercedes", 150, new List<string> { "Front", "Back" }),
new Car("Aston Martin", 300, new List<string> { "Front" })
};
SaveViaDataContractSerialization(carList, "cars.xml"); // save object list
carList = null; // delete object list
carList = LoadViaDataContractSerialization<List<Car>>("cars.xml"); // reload object list
foreach (var a in carList) // print object list
Console.WriteLine(a.ToString());
Console.ReadLine();