Go struct和byte相互转换

package main

import (
"bytes"
"compress/gzip"
"encoding/gob"
"fmt"
"io/ioutil"
"log"
"os"
)

type Person struct {
Name string
Address Address
}

type Address struct {
House int
Street1 string
Town string
PostCode PostCode
}

type PostCode struct {
Value string
}

func EncodeToBytes(p interface{}) []byte {

buf := bytes.Buffer{}
enc := gob.NewEncoder(&buf)
err := enc.Encode(p)
if err != nil {
log.Fatal(err)
}
fmt.Println("uncompressed size (bytes): ", len(buf.Bytes()))
return buf.Bytes()
}

func Compress(s []byte) []byte {

zipbuf := bytes.Buffer{}
zipped := gzip.NewWriter(&zipbuf)
zipped.Write(s)
zipped.Close()
fmt.Println("compressed size (bytes): ", len(zipbuf.Bytes()))
return zipbuf.Bytes()
}

func Decompress(s []byte) []byte {

rdr, _ := gzip.NewReader(bytes.NewReader(s))
data, err := ioutil.ReadAll(rdr)
if err != nil {
log.Fatal(err)
}
rdr.Close()
fmt.Println("uncompressed size (bytes): ", len(data))
return data
}

func DecodeToPerson(s []byte) Person {

p := Person{}
dec := gob.NewDecoder(bytes.NewReader(s))
err := dec.Decode(&p)
if err != nil {
log.Fatal(err)
}
return p
}

func WriteToFile(s []byte, file string) {

f, err := os.Create(file)
if err != nil {
log.Fatal(err)
}

f.Write(s)
}

func ReadFromFile(path string) []byte {

f, err := os.Open(path)
if err != nil {
log.Fatal(err)
}

data, err := ioutil.ReadAll(f)
if err != nil {
log.Fatal(err)
}

return data
}

func main() {

p := Person{
Name: "Joe Bloggs",
Address: Address{
House: 1,
Street1: "The Lane",
Town: "Blackburn",
PostCode: PostCode{
Value: "BB2 5LB",
},
},
}

dataOut := EncodeToBytes(p)
dataOut = Compress(dataOut)
WriteToFile(dataOut, "person.dat")

dataIn := ReadFromFile("person.dat")
dataIn = Decompress(dataIn)
p2 := DecodeToPerson(dataIn)

fmt.Println(p2)
}

 

https://gist.github.com/SteveBate/042960baa7a4795c3565

github上搜一下struct byte也有其它的

 

https://stackoverflow.com/questions/26390503/converting-structure-into-byte-data-and-vice-versa-in-golang

https://cloud.tencent.com/developer/article/1468933

https://askgolang.com/how-to-create-a-byte-array-in-golang/