go protobuf使用

go protobuf使用

先定义Res.proto文件

syntax="proto3";
option go_package = "./";
//cmd: protoc --go_out ./ *.proto

message Res {
    int32 status = 1;
    string exception = 2;
    string message = 3;
}

　　编译proto文件

执行命令行：

protoc --go_out ./ Res.proto

查看生成Res.pb.go文件，可作为protobuf和json数据序列的结构。

// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
//     protoc-gen-go v1.27.1-devel
//     protoc        v3.17.3
// source: Res.proto

package __

import (
    protoreflect "google.golang.org/protobuf/reflect/protoreflect"
    protoimpl "google.golang.org/protobuf/runtime/protoimpl"
    reflect "reflect"
    sync "sync"
)

const (
    // Verify that this generated code is sufficiently up-to-date.
    _ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
    // Verify that runtime/protoimpl is sufficiently up-to-date.
    _ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)

type Res struct {
    state         protoimpl.MessageState
    sizeCache     protoimpl.SizeCache
    unknownFields protoimpl.UnknownFields

    Status    int32  `protobuf:"varint,1,opt,name=status,proto3" json:"status,omitempty"`
    Exception string `protobuf:"bytes,2,opt,name=exception,proto3" json:"exception,omitempty"`
    Message   string `protobuf:"bytes,3,opt,name=message,proto3" json:"message,omitempty"`
}

func (x *Res) Reset() {
    *x = Res{}
    if protoimpl.UnsafeEnabled {
        mi := &file_Res_proto_msgTypes[0]
        ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
        ms.StoreMessageInfo(mi)
    }
}

func (x *Res) String() string {
    return protoimpl.X.MessageStringOf(x)
}

func (*Res) ProtoMessage() {}

func (x *Res) ProtoReflect() protoreflect.Message {
    mi := &file_Res_proto_msgTypes[0]
    if protoimpl.UnsafeEnabled && x != nil {
        ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
        if ms.LoadMessageInfo() == nil {
            ms.StoreMessageInfo(mi)
        }
        return ms
    }
    return mi.MessageOf(x)
}

// Deprecated: Use Res.ProtoReflect.Descriptor instead.
func (*Res) Descriptor() ([]byte, []int) {
    return file_Res_proto_rawDescGZIP(), []int{0}
}

func (x *Res) GetStatus() int32 {
    if x != nil {
        return x.Status
    }
    return 0
}

func (x *Res) GetException() string {
    if x != nil {
        return x.Exception
    }
    return ""
}

func (x *Res) GetMessage() string {
    if x != nil {
        return x.Message
    }
    return ""
}

var File_Res_proto protoreflect.FileDescriptor

var file_Res_proto_rawDesc = []byte{
    0x0a, 0x09, 0x52, 0x65, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x05, 0x6d, 0x6f, 0x64,
    0x65, 0x6c, 0x22, 0x55, 0x0a, 0x03, 0x52, 0x65, 0x73, 0x12, 0x16, 0x0a, 0x06, 0x73, 0x74, 0x61,
    0x74, 0x75, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x05, 0x52, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75,
    0x73, 0x12, 0x1c, 0x0a, 0x09, 0x65, 0x78, 0x63, 0x65, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x02,
    0x20, 0x01, 0x28, 0x09, 0x52, 0x09, 0x65, 0x78, 0x63, 0x65, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x12,
    0x18, 0x0a, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09,
    0x52, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x42, 0x04, 0x5a, 0x02, 0x2e, 0x2f, 0x62,
    0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
}

var (
    file_Res_proto_rawDescOnce sync.Once
    file_Res_proto_rawDescData = file_Res_proto_rawDesc
)

func file_Res_proto_rawDescGZIP() []byte {
    file_Res_proto_rawDescOnce.Do(func() {
        file_Res_proto_rawDescData = protoimpl.X.CompressGZIP(file_Res_proto_rawDescData)
    })
    return file_Res_proto_rawDescData
}

var file_Res_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
var file_Res_proto_goTypes = []interface{}{
    (*Res)(nil), // 0: model.Res
}
var file_Res_proto_depIdxs = []int32{
    0, // [0:0] is the sub-list for method output_type
    0, // [0:0] is the sub-list for method input_type
    0, // [0:0] is the sub-list for extension type_name
    0, // [0:0] is the sub-list for extension extendee
    0, // [0:0] is the sub-list for field type_name
}

func init() { file_Res_proto_init() }
func file_Res_proto_init() {
    if File_Res_proto != nil {
        return
    }
    if !protoimpl.UnsafeEnabled {
        file_Res_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
            switch v := v.(*Res); i {
            case 0:
                return &v.state
            case 1:
                return &v.sizeCache
            case 2:
                return &v.unknownFields
            default:
                return nil
            }
        }
    }
    type x struct{}
    out := protoimpl.TypeBuilder{
        File: protoimpl.DescBuilder{
            GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
            RawDescriptor: file_Res_proto_rawDesc,
            NumEnums:      0,
            NumMessages:   1,
            NumExtensions: 0,
            NumServices:   0,
        },
        GoTypes:           file_Res_proto_goTypes,
        DependencyIndexes: file_Res_proto_depIdxs,
        MessageInfos:      file_Res_proto_msgTypes,
    }.Build()
    File_Res_proto = out.File
    file_Res_proto_rawDesc = nil
    file_Res_proto_goTypes = nil
    file_Res_proto_depIdxs = nil
}