Question

我想使用protobuf-net序列化字符串和反序列化回到对象。如果我序列化为.bin文件，它工作正常但是下面的代码在反序列化时抛出异常。有什么想法吗？

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Runtime.Serialization;
using ProtoBuf;

namespace Proto
{
class Program
{
    public long MemUsed = 0;
    NetDataContractSerializer ser = new NetDataContractSerializer();

    static void Main(string[] args)
    {
        var person = new Person {
            Id = 12345, Name = "Fred",
            Address = new Address 
            {
                Line1 = "Flat 1",
                Line2 = "The Meadows"
            }
        };
        Console.WriteLine("Serializing .....");
        var result = Serialize<Person>(person);
        Console.WriteLine(" Serialization Complete .....");
        Console.WriteLine("Press key to Deserialize ....");
        Console.ReadKey();
        var person2 = new Person();
        DeSerialize<Person>(ref person2,result);
        Console.WriteLine(person2.Name);
        Console.ReadLine();
    }

    public static string Serialize<T>(T myObj)
    {
        string retVal = "";            
        using (MemoryStream memStream = new MemoryStream())
        {
            Serializer.Serialize<T>(memStream, myObj);
            memStream.Position = 0;
            retVal = new StreamReader(memStream).ReadToEnd();
        }
        return (retVal);          
    }

    public static void DeSerialize<T>(ref T myObj, string xmlString)
    {
        byte[] byteArray = Encoding.ASCII.GetBytes(xmlString); 
        MemoryStream stream = new MemoryStream(byteArray,0,byteArray.Length);
        stream.Capacity = Convert.ToInt32(stream.Length);
        myObj = Serializer.Deserialize<T>(stream);
        stream.Close();       
    }
}

[ProtoContract]  
class Person {
    [ProtoMember(1)] 
    public int Id {get;set;}
    [ProtoMember(2)]
    public string Name { get; set; }
    [ProtoMember(3)]
    public Address Address {get;set;}
}     
[ProtoContract] 
class Address {  
    [ProtoMember(1)] 
    public string Line1 {get;set;}
    [ProtoMember(2)]
    public string Line2 {get;set;}
}
}

Answer 1

您正在使用TextReader处理非文本二进制块。这不起作用;基本上你通过尝试UTF解码非UTF的东西来破坏二进制文件，然后重新编码你获得的（无意义的）字符串。

返回二进制文件（例如byte []），或者必须是字符串：通过Convert.ToBase64String等使用base-64。

另请参阅：http://marcgravell.blogspot.com/2010/03/binary-data-and-strings.html

Answer 2

我在这里发布了一个与protobuf-net类似的问题，答案显示了如何进行base64转换。

protobuf-net Serialize To String and Store in Database Then De Serialize

protobuf-net反序列化错误无效标记：0

2 个答案: