ArcEngine 序列化AO对象

ArcEngine中只要是继承了IPersistStream接口的对象均可调用ArcEngine中的类库进行序列化和反序列化。一般我们会序列化成xml格式，作为字符串存储，需要的时候，反序列化为对象。但实际使用的时候，发现序列化出来的xml有乱码，反序列化的时候也会报错。看了下相关接口，也没找到设置文字编码的地方。

最后想着不如序列化成byte[]，然后把byte[]保存成字符串存储，反序列化的时候，从字符串先转换成byte[]，再进行反序列化。实际测试验证，这种方式是可行的。

具体代码如下。

/// <summary>
/// 保存成bytes字符串
/// </summary>
/// <param name="pPersistStream"></param>
/// <returns></returns>
public static string ToBytesString(IPersistStream pPersistStream)
{
    IMemoryBlobStream myMemoryBlobStream = new MemoryBlobStreamClass();
    pPersistStream.Save(myMemoryBlobStream, 0);
    IMemoryBlobStreamVariant myMemoryBlobStreamVariant = myMemoryBlobStream as IMemoryBlobStreamVariant;
    object myObject;
    myMemoryBlobStreamVariant.ExportToVariant(out myObject);
    return Convert.ToBase64String(myObject as byte[]);
}

/// <summary>
/// 从bytes字符串中解析对象信息
/// </summary>
/// <param name="pBytesString"></param>
/// <param name="pPersistStream"></param>
public static void FromBytesString(string pBytesString, IPersistStream pPersistStream)
{
    byte[] myByteArray = Convert.FromBase64String(pBytesString);
    IMemoryBlobStream myMemoryBlobStream = new MemoryBlobStreamClass();
    IMemoryBlobStreamVariant myMemoryBlobStreamVariant = myMemoryBlobStream as IMemoryBlobStreamVariant;
    myMemoryBlobStreamVariant.ImportFromVariant(myByteArray);
    pPersistStream.Load(myMemoryBlobStream);
}