Protobuf.Json
1.0.3
dotnet add package Protobuf.Json --version 1.0.3
NuGet\Install-Package Protobuf.Json -Version 1.0.3
<PackageReference Include="Protobuf.Json" Version="1.0.3" />
<PackageVersion Include="Protobuf.Json" Version="1.0.3" />
<PackageReference Include="Protobuf.Json" />
paket add Protobuf.Json --version 1.0.3
#r "nuget: Protobuf.Json, 1.0.3"
#:package Protobuf.Json@1.0.3
#addin nuget:?package=Protobuf.Json&version=1.0.3
#tool nuget:?package=Protobuf.Json&version=1.0.3
Protobuf Library - 轻量级 Protobuf3 库
一个完全独立的、支持 AOT 的 Protobuf3 库,无需依赖 Google.Protobuf 或 protobuf-net。
特性
- ✅ 零依赖:不依赖任何外部 Protobuf 库
- ✅ AOT 友好:完全支持 NativeAOT 编译
- ✅ Protobuf3 支持:完整的 protobuf3 标准支持
- ✅ Source Generator:编译时自动生成代码
- ✅ CSProj 集成:支持通配符匹配,
**/*.proto - ✅ hasXxx() 方法:检查字段是否有值
- ✅ 完整类型支持:基础类型、repeated、oneof、map
- ✅ 构建系统集成:无缝集成到 MSBuild
支持的类型
基础类型
double,floatint32,int64,uint32,uint64sint32,sint64(ZigZag 编码)fixed32,fixed64,sfixed32,sfixed64bool,string,bytes
高级类型
repeated- 列表字段oneof- 互斥字段map<K,V>- 字典字段- 嵌套消息
- 枚举
快速开始
安装
方式 A:通过 NuGet 包引用(推荐,用于本项目之外的消费方)
dotnet add package Protobuf.Generator # 源生成器(以 analyzer 自动加载,自动扫描 **/*.proto)
dotnet add package Protobuf.Core # 运行时(生成的代码依赖它,必需)
# 按需引入:
dotnet add package Protobuf.Json # JSON 序列化
dotnet add package Protobuf.Reflection # AOT 友好的反射 API
安装后无需任何额外配置——把 .proto 放进项目,dotnet build 即自动生成代码。
包源:NuGet.org 公开、无需认证;GitHub Packages(
https://nuget.pkg.github.com/<owner>/index.json)即使是公开包也需要 PAT(read:packages)认证。
方式 B:源码内引用(本仓库内部项目 / 开发调试) —— 使用下方「2. 配置项目文件」里的 ProjectReference 方式。
1. 定义 .proto 文件
syntax = "proto3";
package Example;
message Person {
string name = 1;
int32 id = 2;
string email = 3;
repeated string phone_numbers = 4;
oneof address {
string home_address = 5;
string work_address = 6;
}
map<string, string> metadata = 7;
}
2. 配置项目文件
<ItemGroup>
<ProjectReference Include="Protobuf.Core\Protobuf.Core.csproj" />
<ProjectReference Include="Protobuf.Generator\Protobuf.Generator.csproj"
OutputItemType="Analyzer"
ReferenceOutputAssembly="false" />
<ProtoFile Include="Protos\**\*.proto" />
</ItemGroup>
3. 使用生成的代码
var person = new Person();
// 设置字段
person.SetName("Alice");
person.SetId(12345);
// 检查字段是否有值
if (person.HasName)
{
Console.WriteLine($"Name: {person.Name}");
}
// 使用 repeated 字段
person.AddPhoneNumbers("555-1234");
person.AddPhoneNumbers("555-5678");
// 使用 oneof
person.SetHomeAddress("123 Home St");
// 切换到另一个 oneof 选项(会自动清除前一个)
person.SetWorkAddress("456 Work Ave");
// 使用 map
person.AddMetadata("department", "Engineering");
API 参考
hasXxx() 方法
每个字段都有一个对应的 HasXxx() 方法,用于检查字段是否有值:
person.HasName // bool
person.HasId // bool
person.HasEmail // bool
person.HasPhoneNumbers // bool
Setter 方法
使用 SetXxx() 方法设置字段值:
person.SetName("Alice");
person.SetId(12345);
person.SetEmail("alice@example.com");
Getter 属性
使用 Xxx 属性获取字段值:
string name = person.Name;
int id = person.Id;
Repeated 字段
对于 repeated 字段,使用 AddXxx() 方法:
person.AddPhoneNumbers("555-1234");
// 获取只读列表
IReadOnlyList<string> phones = person.PhoneNumbers;
Oneof 字段
person.SetHomeAddress("123 Home St");
// 检查哪个 oneof 字段被设置
if (person.HasHomeAddress)
{
Console.WriteLine($"Home: {person.HomeAddress}");
}
// 获取 oneof case
Person.AddressCase addrCase = person.AddressCase;
// 清除 oneof
person.ClearAddress();
Map 字段
person.AddMetadata("key", "value");
// 获取只读字典
IReadOnlyDictionary<string, string> metadata = person.Metadata;
序列化
// 序列化到字节数组
byte[] data = person.Serialize();
// 从字节数组反序列化
Person person2 = Person.Parser.ParseFrom(data);
JSON 支持
// 序列化到 JSON(PascalCase)
string json = person.ToJson();
// {"Name":"Alice","Id":12345,...}
// 从 JSON 反序列化
Person person3 = Person.Parser.ParseJson(json);
项目结构
Protobuf.Library/
├── src/
│ ├── Protobuf.Core/ # 核心运行时库
│ ├── Protobuf.Parser/ # .proto 文件解析器
│ ├── Protobuf.Generator/ # Source Generator
│ ├── Protobuf.Json/ # JSON 支持
│ └── Protobuf.Reflection/ # 反射 API
├── tests/
│ └── Protobuf.Tests/
└── examples/
└── Examples/
🚀 如何使用
快速开始
查看 QUICKSTART.md 了解一分钟上手指南
详细指南
查看 USAGE.md 获取完整使用文档
运行示例
cd examples/Examples
dotnet run -- parser # Proto 文件解析示例
dotnet run -- codec # 编解码器使用示例
dotnet run -- manual # 手动消息处理示例
dotnet run -- realworld # 真实应用场景示例
当前使用方式
阶段一:手动方式(当前可用)
- ✅ 解析 .proto 文件了解结构
- ✅ 使用运行时 API 手动编码/解码
- ⏳ 等待 Source Generator
阶段二:自动生成(即将推出)
- ⏳ 定义 .proto 文件
- ⏳ Source Generator 自动生成 C# 代码
- ⏳ 开箱即用,无需手写代码
与 Google.Protobuf 和 protobuf-net 的区别
Google.Protobuf
- ❌ 需要额外的 protoc 工具生成代码
- ❌ 生成的代码冗长且难以阅读
- ❌ 大型依赖
protobuf-net
- ❌ 主要依赖运行时反射
- ❌ AOT 不支持
- ❌ 配置复杂
本库
- ✅ Source Generator 自动生成代码
- ✅ 生成的代码简洁易读
- ✅ 完全支持 AOT
- ✅ 零外部依赖
- ✅ 单一库,开箱即用
开发状态
- 核心运行时(Wire Format、编解码器)
- Proto 文件解析器
- 代码生成器(Source Generator)
- 基础类型支持
- Repeated 字段支持
- OneOf 字段支持
- Map 字段支持(完整序列化/反序列化)
- 嵌套消息类型支持
- JSON 序列化/反序列化(PascalCase)
- AOT 友好的反射 API
- 所有项目成功构建
- 完整的序列化/反序列化实现
- 单元测试(54个测试全部通过)
- 文档完善
许可证
待定
贡献
欢迎贡献!
| Product | Versions Compatible and additional computed target framework versions. |
|---|---|
| .NET | net5.0 was computed. net5.0-windows was computed. net6.0 was computed. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 was computed. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 was computed. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. |
| .NET Core | netcoreapp3.0 was computed. netcoreapp3.1 was computed. |
| .NET Standard | netstandard2.1 is compatible. |
| MonoAndroid | monoandroid was computed. |
| MonoMac | monomac was computed. |
| MonoTouch | monotouch was computed. |
| Tizen | tizen60 was computed. |
| Xamarin.iOS | xamarinios was computed. |
| Xamarin.Mac | xamarinmac was computed. |
| Xamarin.TVOS | xamarintvos was computed. |
| Xamarin.WatchOS | xamarinwatchos was computed. |
-
.NETStandard 2.1
- Protobuf.Core (>= 1.0.3)
- System.Text.Json (>= 10.0.9)
NuGet packages
This package is not used by any NuGet packages.
GitHub repositories
This package is not used by any popular GitHub repositories.
v1.0.0 - Initial stable release
📝 JSON Serialization Features:
- PascalCase JSON format (C# naming convention)
- Full message serialization/deserialization
- Nested message support
- Collection support (lists, dictionaries)
- Enum handling
- Type-safe conversion
🔧 Usage:
- ToJson() - Serialize message to JSON
- FromJson() - Deserialize JSON to message
- Reflection-based (default mode)
- Interface-based mode for custom logic
⚡ Performance:
- Efficient JSON writer/reader
- Minimal memory allocations
- Compatible with System.Text.Json
- AOT-friendly implementation
💡 Use Cases:
- Debugging and logging
- Configuration files
- Interoperability with JSON APIs
- Human-readable data exchange