This sample program shows how to read Gob-encoded records out from a file.

learn-gob.go

package main

import (
	"encoding/gob"
	"io"
	"log"
	"os"
)

func main() {
	type Person struct {
		Name string
	}

	ps := []Person{
		Person{Name: "Yi"},
		Person{Name: ""}}

	out, e := os.Create("/tmp/learn-gob")
	if e != nil {
		log.Panic(e)
	}

	en := gob.NewEncoder(out)
	for _, p := range ps {
		if e := en.Encode(&p); e != nil {
			log.Panic(e)
		}
	}

	out.Close()

	in, e := os.Open("/tmp/learn-gob")
	if e != nil {
		log.Panic(e)
	}

	de := gob.NewDecoder(in)
	for {
		var p Person
		if e := de.Decode(&p); e != nil {
			if e == io.EOF {
				break
			} else {
				log.Panic(e)
			}
		}
		log.Printf("%+v\n", p)
	}

	in.Close()
}