我有一个类,其中包含有关图片的信息,如filepath,hashvalue,bytes。 在另一个类中,我得到了一个通用列表,我从类中保存图片信息。
该课程如下:
[Serializable()]
class PicInfo : ISerializable
{
public string fileName { get; set; }
public string completeFileName { get; set; }
public string filePath { get; set; }
public byte[] hashValue { get; set; }
public PicInfo()
{ }
public PicInfo(SerializationInfo info, StreamingContext ctxt)
{
this.fileName = (string)info.GetValue("fileName", typeof(string));
this.completeFileName = (string)info.GetValue("completeFileName", typeof(string));
this.filePath = (string)info.GetValue("filePath", typeof(string));
this.hashValue = (byte[])info.GetValue("hashValue", typeof(byte[]));
}
public void GetObjectData(SerializationInfo info, StreamingContext ctxt)
{
info.AddValue("fileName", this.fileName);
info.AddValue("completeFileName", this.completeFileName);
info.AddValue("filePath", this.filePath);
info.AddValue("hashValue", this.hashValue);
}
}
我的列表只是list<picinfo> pi = new list<picinfo>();
序列化这个列表最简单的方法是什么?
答案 0 :(得分:13)
如果您想使用BinaryFormatter
(我真的不建议),您可以使用:
[Serializable]
class PicInfo
{
public string fileName { get; set; }
public string completeFileName { get; set; }
public string filePath { get; set; }
public byte[] hashValue { get; set; }
public PicInfo() { }
}
static class Program
{
static void Main()
{
List<PicInfo> pi = new List<PicInfo>();
pi.Add(new PicInfo {fileName = "foo.bar", hashValue = new byte[] {1, 2, 3}});
var ser = new BinaryFormatter();
using (var ms = new MemoryStream())
{
ser.Serialize(ms, pi);
var bytes = ms.ToArray();
}
}
}
如果您想使用XmlSerializer
(可能更喜欢IMO),但需要byte[]
,那么:
public class PicInfo
{
public string fileName { get; set; }
public string completeFileName { get; set; }
public string filePath { get; set; }
public byte[] hashValue { get; set; }
public PicInfo() { }
}
static class Program
{
static void Main()
{
List<PicInfo> pi = new List<PicInfo>();
pi.Add(new PicInfo {fileName = "foo.bar", hashValue = new byte[] {1, 2, 3}});
var ser = new XmlSerializer(typeof(List<PicInfo>));
using (var ms = new MemoryStream())
{
ser.Serialize(ms, pi);
var bytes = ms.ToArray();
}
}
}
就个人而言,我会使用protobuf-net:
[ProtoContract]
public class PicInfo
{
[ProtoMember(1)]public string fileName { get; set; }
[ProtoMember(2)]public string completeFileName { get; set; }
[ProtoMember(3)]public string filePath { get; set; }
[ProtoMember(4)]public byte[] hashValue { get; set; }
public PicInfo() { }
}
static class Program
{
static void Main()
{
List<PicInfo> pi = new List<PicInfo>();
pi.Add(new PicInfo {fileName = "foo.bar", hashValue = new byte[] {1, 2, 3}});
using (var ms = new MemoryStream())
{
Serializer.Serialize(ms, pi);
var bytes = ms.ToArray();
}
}
}
尺寸:
BinaryFormatter
:488个字节XmlSerializer
:251个字节