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Vova Makarovych
Asked:2020-02-07 00:54:39 +0000 UTC2020-02-07 00:54:39 +0000 UTC

序列化和反序列化不起作用

  • 772

我需要将矩阵写入文件并从中读取。我编写了代码，但它给了我一个无法写入文件的错误。需要你的帮助

        BinaryFormatter formatter = new BinaryFormatter();

        using (FileStream fs = new FileStream("matrix.dat", FileMode.OpenOrCreate, FileAccess.Write, FileShare.None))
        {
            formatter.Serialize(fs, matplus);

            Console.WriteLine("Объект сериализован");
        }

        //десериализация
        using (FileStream fs = new FileStream("matrix.dat", FileMode.OpenOrCreate))
        {
            Matrix deserilizeMatrix = (Matrix)formatter.Deserialize(fs);
            Console.WriteLine("Ета матрица?");
        }
c#

1 个回答

  1. Best Answer

    添加到将被序列化的类

    [Serializable]//вот эта!
public class SomeItem
{}

    用于序列化的包装器：

    public static class Serializator
{
    private static BinaryFormatter _bin = new BinaryFormatter();

    public static void Serialize(string pathOrFileName, object objToSerialise)
    {
        using (Stream stream = File.Open(pathOrFileName, FileMode.Create))
        {
            try 
            {
                _bin.Serialize(stream, objToSerialise);
            }
            catch (SerializationException e) 
            {
                Console.WriteLine("Failed to serialize. Reason: " + e.Message);
                throw;
            }
        }
    }

    public static T Deserialize<T>(string pathOrFileName) 
    {
        T items;

        using (Stream stream = File.Open(pathOrFileName, FileMode.Open))
        {
            try 
            {
                items = (T) _bin.Deserialize(stream);
            }
            catch (SerializationException e) 
            {
                Console.WriteLine("Failed to deserialize. Reason: " + e.Message);
                throw;
            }
        }

        return items;
    }
}

    好吧，实际上，使用示例本身：

    List<SomeItem> itemsCollected;//list with some data

Serializator.Serialize("data.dat", itemsCollected);

var a = Serializator.Deserialize<List<SomeItem>>("data.dat");
// обрати внимание что при десериализации ты должен задать вместо 
// List<SomeItem> нужный формат данных

    如果发生错误，它将向控制台输出序列化异常消息。

    • 1

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