golang 的MessagePack编解码包的试用

主要是对于golang messagepack 包的试用

项目代码

• go.mod

module demoapp

​

go 1.15

​

require (

    github.com/davecgh/go-spew v1.1.1 // indirect

    github.com/kr/text v0.2.0 // indirect

    github.com/tinylib/msgp v1.1.5

    github.com/vmihailenco/msgpack/v5 v5.1.4

    gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect

    gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 // indirect

)

• 项目结构

├── Makefile

├── README.md

├── go.mod

├── go.sum

├── main.go

└── pkg

    ├── person.go

• 代码说明
  Makefile 使用make 进行代码生成

 

gen:

    go generate ./pkg

go.mod

module demoapp

​

go 1.15

​

require (

    github.com/davecgh/go-spew v1.1.1 // indirect

    github.com/kr/text v0.2.0 // indirect

    github.com/tinylib/msgp v1.1.5

    github.com/vmihailenco/msgpack/v5 v5.1.4

    gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect

    gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 // indirect

)

person.go 定义的person struct，同时集成了golang 的tag 能力方便进行序列化以及反序列话处理

//go:generate msgp

​

package pkg

​

// Person person for search

type Person struct {

    Name       string `msg:"name" msgpack:"name"`

    Address    string `msg:"address" msgpack:"address"`

    Age        int    `msg:"age" msgpack:"age"`

    Hidden     string `msg:"-" msgpack:"_"` // this field is ignored

    unexported bool   // this field is also ignored

}

main.go 集成了tinylib/msgp + vmihailenco/msgpack 进行互相转换处理

package main

​

import (

    "bytes"

    "demoapp/pkg"

    "log"

​

    "github.com/tinylib/msgp/msgp"

    "github.com/vmihailenco/msgpack/v5"

)

​

func main() {

    var buf bytes.Buffer

    myPerson := pkg.Person{

        Name:    "荣锋亮",

        Address: "beijing",

        Age:     33,

    }

    err := msgp.Encode(&buf, &myPerson)

    if err != nil {

        panic("encode some wrong" + err.Error())

    }

    var dstPerson pkg.Person

    var dstPerson2 *pkg.Person = &pkg.Person{}

    err = msgpack.Unmarshal(buf.Bytes(), &dstPerson)

    datas, err := dstPerson2.UnmarshalMsg(buf.Bytes())

    if err != nil {

        panic("uncode:" + err.Error())

    }

    if len(datas) > 0 {

        log.Panicf("%d bytes left over after UnmarshalMsg(): %q", len(datas), datas)

    }

    log.Println("from msgp: ", string(buf.Bytes()))

    log.Printf("msgpack:%v,msgp: %v", dstPerson, *dstPerson2)

    log.Println("from msgpack:", dstPerson.Name)

}

运行

• 命令

make 

go run main.go

• 效果

 

 

参考资料

https://github.com/tinylib/msgp
https://github.com/vmihailenco/msgpack
https://msgpack.uptrace.dev/
https://github.com/rongfengliang/messagepack-go-learning