syntax = "proto3"; option cc_enable_arenas = true; package Tccc.Demo.Protobuf; message ErrorLog { string LogID = 1; string Context = 2; string Stack = 3; }首先需要根据.proto文件生成目标类型,操作如下:
./google.protobuf.tools\3.19.1\tools\windows_x64\protoc.exe --csharp_out=./generatedCode ./proto/ErrorLog.proto
其中--csharp_out选项是生成C#语言的目标类型,运行protoc.exe -h 查看帮助信息,可以看到还支持一下几种选项:
--proto_path=PATH --cpp_out=OUT_DIR Generate C++ header and source. --csharp_out=OUT_DIR Generate C# source file. --java_out=OUT_DIR Generate Java source file. --js_out=OUT_DIR Generate JavaScript source. --kotlin_out=OUT_DIR Generate Kotlin file. --objc_out=OUT_DIR Generate Objective-C header and source. --php_out=OUT_DIR Generate PHP source file. --python_out=OUT_DIR Generate Python source file. --ruby_out=OUT_DIR Generate Ruby source file.运行上述命令,会根据指定的ErrorLog.proto文件生成ErrorLog.cs文件,文件中就是C#类型ErrorLog。生成的代码中会给此类型增加方法void WriteTo(CodedOutputStream output)和只读属性Parser,接下来进行序列化和反序列化的关键。 生成的ErrorLog类的完整代码:
// <auto-generated> // Generated by the protocol buffer compiler. DO NOT EDIT! // source: ProtoFiles/ErrorLog.proto // </auto-generated> #pragma warning disable 1591, 0612, 3021 #region Designer generated code using pb = global::Google.Protobuf; using pbc = global::Google.Protobuf.Collections; using pbr = global::Google.Protobuf.Reflection; using scg = global::System.Collections.Generic; namespace Tccc.Demo.Protobuf { /// <summary>Holder for reflection information generated from ProtoFiles/ErrorLog.proto</summary> public static partial class ErrorLogReflection { #region Descriptor /// <summary>File descriptor for ProtoFiles/ErrorLog.proto</summary> public static pbr::FileDescriptor Descriptor { get { return descriptor; } } private static pbr::FileDescriptor descriptor; static ErrorLogReflection() { byte[] descriptorData = global::System.Convert.FromBase64String( string.Concat( "ChlQcm90b0ZpbGVzL0Vycm9yTG9nLnByb3RvEhJUY2NjLkRlbW8uUHJvdG9i", "dWYiOQoIRXJyb3JMb2cSDQoFTG9nSUQYASABKAkSDwoHQ29udGV4dBgCIAEo", "CRINCgVTdGFjaxgDIAEoCUID+AEBYgZwcm90bzM=")); descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData, new pbr::FileDescriptor[] { }, new pbr::GeneratedClrTypeInfo(null, null, new pbr::GeneratedClrTypeInfo[] { new pbr::GeneratedClrTypeInfo(typeof(global::Tccc.Demo.Protobuf.ErrorLog), global::Tccc.Demo.Protobuf.ErrorLog.Parser, new[]{ "LogID", "Context", "Stack" }, null, null, null, null) })); } #endregion } #region Messages public sealed partial class ErrorLog : pb::IMessage<ErrorLog> #if !GOOGLE_PROTOBUF_REFSTRUCT_COMPATIBILITY_MODE , pb::IBufferMessage #endif { private static readonly pb::MessageParser<ErrorLog> _parser = new pb::MessageParser<ErrorLog>(() => new ErrorLog()); private pb::UnknownFieldSet _unknownFields; [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public static pb::MessageParser<ErrorLog> Parser { get { return _parser; } } [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public static pbr::MessageDescriptor Descriptor { get { return global::Tccc.Demo.Protobuf.ErrorLogReflection.Descriptor.MessageTypes[0]; } } [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] pbr::MessageDescriptor pb::IMessage.Descriptor { get { return Descriptor; } } [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public ErrorLog() { OnConstruction(); } partial void OnConstruction(); [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public ErrorLog(ErrorLog other) : this() { logID_ = other.logID_; context_ = other.context_; stack_ = other.stack_; _unknownFields = pb::UnknownFieldSet.Clone(other._unknownFields); } [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public ErrorLog Clone() { return new ErrorLog(this); } /// <summary>Field number for the "LogID" field.</summary> public const int LogIDFieldNumber = 1; private string logID_ = ""; [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public string LogID { get { return logID_; } set { logID_ = pb::ProtoPreconditions.CheckNotNull(value, "value"); } } /// <summary>Field number for the "Context" field.</summary> public const int ContextFieldNumber = 2; private string context_ = ""; [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public string Context { get { return context_; } set { context_ = pb::ProtoPreconditions.CheckNotNull(value, "value"); } } /// <summary>Field number for the "Stack" field.</summary> public const int StackFieldNumber = 3; private string stack_ = ""; [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public string Stack { get { return stack_; } set { stack_ = pb::ProtoPreconditions.CheckNotNull(value, "value"); } } [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public override bool Equals(object other) { return Equals(other as ErrorLog); } [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public bool Equals(ErrorLog other) { if (ReferenceEquals(other, null)) { return false; } if (ReferenceEquals(other, this)) { return true; } if (LogID != other.LogID) return false; if (Context != other.Context) return false; if (Stack != other.Stack) return false; return Equals(_unknownFields, other._unknownFields); } [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public override int GetHashCode() { int hash = 1; if (LogID.Length != 0) hash ^= LogID.GetHashCode(); if (Context.Length != 0) hash ^= Context.GetHashCode(); if (Stack.Length != 0) hash ^= Stack.GetHashCode(); if (_unknownFields != null) { hash ^= _unknownFields.GetHashCode(); } return hash; } [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public override string ToString() { return pb::JsonFormatter.ToDiagnosticString(this); } [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public void WriteTo(pb::CodedOutputStream output) { #if !GOOGLE_PROTOBUF_REFSTRUCT_COMPATIBILITY_MODE output.WriteRawMessage(this); #else if (LogID.Length != 0) { output.WriteRawTag(10); output.WriteString(LogID); } if (Context.Length != 0) { output.WriteRawTag(18); output.WriteString(Context); } if (Stack.Length != 0) { output.WriteRawTag(26); output.WriteString(Stack); } if (_unknownFields != null) { _unknownFields.WriteTo(output); } #endif } #if !GOOGLE_PROTOBUF_REFSTRUCT_COMPATIBILITY_MODE [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] void pb::IBufferMessage.InternalWriteTo(ref pb::WriteContext output) { if (LogID.Length != 0) { output.WriteRawTag(10); output.WriteString(LogID); } if (Context.Length != 0) { output.WriteRawTag(18); output.WriteString(Context); } if (Stack.Length != 0) { output.WriteRawTag(26); output.WriteString(Stack); } if (_unknownFields != null) { _unknownFields.WriteTo(ref output); } } #endif [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public int CalculateSize() { int size = 0; if (LogID.Length != 0) { size += 1 + pb::CodedOutputStream.ComputeStringSize(LogID); } if (Context.Length != 0) { size += 1 + pb::CodedOutputStream.ComputeStringSize(Context); } if (Stack.Length != 0) { size += 1 + pb::CodedOutputStream.ComputeStringSize(Stack); } if (_unknownFields != null) { size += _unknownFields.CalculateSize(); } return size; } [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public void MergeFrom(ErrorLog other) { if (other == null) { return; } if (other.LogID.Length != 0) { LogID = other.LogID; } if (other.Context.Length != 0) { Context = other.Context; } if (other.Stack.Length != 0) { Stack = other.Stack; } _unknownFields = pb::UnknownFieldSet.MergeFrom(_unknownFields, other._unknownFields); } [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] public void MergeFrom(pb::CodedInputStream input) { #if !GOOGLE_PROTOBUF_REFSTRUCT_COMPATIBILITY_MODE input.ReadRawMessage(this); #else uint tag; while ((tag = input.ReadTag()) != 0) { switch(tag) { default: _unknownFields = pb::UnknownFieldSet.MergeFieldFrom(_unknownFields, input); break; case 10: { LogID = input.ReadString(); break; } case 18: { Context = input.ReadString(); break; } case 26: { Stack = input.ReadString(); break; } } } #endif } #if !GOOGLE_PROTOBUF_REFSTRUCT_COMPATIBILITY_MODE [global::System.Diagnostics.DebuggerNonUserCodeAttribute] [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)] void pb::IBufferMessage.InternalMergeFrom(ref pb::ParseContext input) { uint tag; while ((tag = input.ReadTag()) != 0) { switch(tag) { default: _unknownFields = pb::UnknownFieldSet.MergeFieldFrom(_unknownFields, ref input); break; case 10: { LogID = input.ReadString(); break; } case 18: { Context = input.ReadString(); break; } case 26: { Stack = input.ReadString(); break; } } } } #endif } #endregion } #endregion Designer generated codeView Code
public static byte[] Serialize(ErrorLog log) { using (MemoryStream output = new MemoryStream()) { log.WriteTo(output); return output.ToArray(); } }
ErrorLog desErrorLog= ErrorLog.Parser.ParseFrom(data);