json

json序列化

  1. package main
  3. import (
  4.     "encoding/json"
  5.     "fmt"
  6.     "log"
  7.     "os"
  8. )
  10. type Address struct {
  11.     Type    string
  12.     City    string
  13.     Country string
  14. }
  16. type VCard struct {
  17.     FirstName string
  18.     LastName  string
  19.     Addresses []*Address
  20.     Remark    string
  21. }
  23. func main() {
  24.     pa := &Address{"private", "Aartselaar", "Belgium"}
  25.     wa := &Address{"work", "Boom", "Belgium"}
  26.     vc := VCard{"Jan", "Kersschot", []*Address{pa, wa}, "none"}
  28.     js, _ := json.Marshal(vc)
  29.     fmt.Printf("JSON format: %s", js)
  31.     // 序列化到文件
  32.     file, _ := os.OpenFile("vcard.json", os.O_CREATE|os.O_WRONLY, 0666)
  33.     defer file.Close()
  34.     enc := json.NewEncoder(file)
  35.     err := enc.Encode(vc)
  36.     if err != nil {
  37.         log.Println("Error in encoding json")
  38.     }
  39. }