Protobuf-net - 仅序列化一些属性

发布于 2024-11-30 06:55:21 字数 961 浏览 0 评论 0原文

是否可以只序列化类的少数属性？例如：

public class Client
{
   [ProtoMember(1)]
   public int Id { get; set; } 

   [ProtoMember(2)]
   public string Name { get; set; }

   public int Age { get; set; } 

   [ProtoMember(3)]
   public string Guid { get; set; } 
}

因此，我得到的“Id”值不正确。其他属性都是正确的。如果我用“[ProtoMember]”填充所有属性，则“id”的值是正确的。为什么？

实际上，该错误是由其他原因引起的，您也许可以帮助我。

我将 String 转换为 Stream 来执行任务。及时反转此转换，我的 Id 值出现错误

var cli = new Client
{ Id = 222, Guid = "52369-fe5r6-74e2g-j1i4e", Age = 29, Name = "José"};

//Serialize
var ms = new MemoryStream();
Serializer.Serialize(ms, cli);
ms.Position = 0;
var reader = new StreamReader(ms);
var strStream = reader.ReadToEnd();

//Deserialize
var ms2 = new MemoryStream(Encoding.UTF8.GetBytes(strStream));


var obj = Serializer.Deserialize<Client>(ms2);

，因此，任何高于 127 的值都会转换为不同的 Int。例如：3104751

我的转换错误？

Obs：抱歉英语不好

原文

It is possible to serialize only a few properties of the class?
ex:

public class Client
{
   [ProtoMember(1)]
   public int Id { get; set; } 

   [ProtoMember(2)]
   public string Name { get; set; }

   public int Age { get; set; } 

   [ProtoMember(3)]
   public string Guid { get; set; } 
}

Thus, I get the value of "Id" incorrect. The other properties are correct.
If I fill it with "[ProtoMember]" all the properties, the value of "id" is correct.
Why?

Actually the error is caused by other reasons you may be able to help me.

I convert String to Stream to perform tasks. In time to reverse this conversion I have error in the value of Id

var cli = new Client
{ Id = 222, Guid = "52369-fe5r6-74e2g-j1i4e", Age = 29, Name = "José"};

//Serialize
var ms = new MemoryStream();
Serializer.Serialize(ms, cli);
ms.Position = 0;
var reader = new StreamReader(ms);
var strStream = reader.ReadToEnd();

//Deserialize
var ms2 = new MemoryStream(Encoding.UTF8.GetBytes(strStream));


var obj = Serializer.Deserialize<Client>(ms2);

Thus, any value above 127, is converted to a different Int. Ex: 3104751

My conversion is wrong?

Obs: I'm sorry the poor English

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诺曦 2024-12-07 06:55:21

这是。只需确保包含类的 [ProtoContract] 属性，并在序列化和反序列化时使用完全相同的约定。

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小苏打饼 2024-12-07 06:55:21

通过您的编辑，错误是显而易见的；您正在使用 Encoding 将任意数据处理为字符串。别担心，我经常看到（因此这篇文章）。

文本编码的目的是：

string     =>      byte[]     =>     string
        (encode)           (decode)

这里重要的是 byte[] 具有由编码定义的特定重要值。你想要的是base-64：

byte[]     =>      string     =>     byte[]
        (encode)           (decode)

你可以通过：

byte[] raw = ms.ToArray();
string s = Convert.ToBase64String(raw);

然后：

byte[] bytes = Convert.FromBase64String(s);

With your edit, the error is obvious; you are using Encoding to process arbitrary data into a string. Don't worry, I see this a lot (hence this post).

The intention of a text encoding is:

string     =>      byte[]     =>     string
        (encode)           (decode)

the important thing here is that the byte[] has a specific important defined by the encoding. What you want is base-64:

byte[]     =>      string     =>     byte[]
        (encode)           (decode)

which you do via:

byte[] raw = ms.ToArray();
string s = Convert.ToBase64String(raw);

and then:

byte[] bytes = Convert.FromBase64String(s);

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深巷少女 2024-12-07 06:55:21

问题是因为编码。您为什么要读取流然后创建另一个流？像这样的东西应该有效：

var cli = new Client{ Id = 222, Guid = "52369-fe5r6-74e2g-j1i4e", Age = 29, Name = "José"};

//Serialize
var ms = new MemoryStream();
Serializer.Serialize(ms, cli);
ms.Position = 0;

//Deserialize
var obj = Serializer.Deserialize<Client>(ms);

The problem is because of the encoding. Why are you reading the stream and then creating another one? Something like this should work:

var cli = new Client{ Id = 222, Guid = "52369-fe5r6-74e2g-j1i4e", Age = 29, Name = "José"};

//Serialize
var ms = new MemoryStream();
Serializer.Serialize(ms, cli);
ms.Position = 0;

//Deserialize
var obj = Serializer.Deserialize<Client>(ms);

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