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詳解Go開(kāi)發(fā)Struct轉(zhuǎn)換成map兩種方式比較

更新時(shí)間：2018年07月23日 10:01:25 作者：小歪子go

本篇文章主要介紹了詳解Go開(kāi)發(fā)Struct轉(zhuǎn)換成map兩種方式比較，小編覺(jué)得挺不錯(cuò)的，現(xiàn)在分享給大家，也給大家做個(gè)參考。一起跟隨小編過(guò)來(lái)看看吧

最近做Go開(kāi)發(fā)的時(shí)候接觸到了一個(gè)新的orm第三方框架gorose，在使用的過(guò)程中，發(fā)現(xiàn)沒(méi)有類(lèi)似beego進(jìn)行直接對(duì)struct結(jié)構(gòu)進(jìn)行操作的方法，有部分API是通過(guò)map進(jìn)行數(shù)據(jù)庫(kù)相關(guān)操作，那么就需要我們把struct轉(zhuǎn)化成map，下面是是我嘗試兩種不同struct轉(zhuǎn)換成map的方法

mport (
  "encoding/json"
  "fmt"
  "reflect"
  "time"
)

type Persion struct {
  Id    int
  Name   string
  Address string
  Email  string
  School  string
  City   string
  Company string
  Age   int
  Sex   string
  Proviece string
  Com   string
  PostTo  string
  Buys   string
  Hos   string
}

func main() {
  StructToMapViaJson()
  //StructToMapViaReflect()
}

func StructToMapViaJson() {
  m := make(map[string]interface{})
  t := time.Now()
  person := Persion{
    Id:    98439,
    Name:   "zhaondifnei",
    Address: "大沙地",
    Email:  "dashdisnin@126.com",
    School:  "廣州第十五中學(xué)",
    City:   "zhongguoguanzhou",
    Company: "sndifneinsifnienisn",
    Age:   23,
    Sex:   "F",
    Proviece: "jianxi",
    Com:   "廣州蘭博基尼",
    PostTo:  "藍(lán)鯨XXXXXXXX",
    Buys:   "shensinfienisnfieni",
    Hos:   "zhonsndifneisnidnfie",
  }
  j, _ := json.Marshal(person)
  json.Unmarshal(j, &m)
  fmt.Println(m)
  fmt.Println(time.Now().Sub(t))
}

一、通過(guò)struct轉(zhuǎn)json，json轉(zhuǎn)成map

func StructToMapViaJson() {
  m := make(map[string]interface{})
  t := time.Now()
  person := Persion{
    Id:    98439,
    Name:   "zhaondifnei",
    Address: "大沙地",
    Email:  "dashdisnin@126.com",
    School:  "廣州第十五中學(xué)",
    City:   "zhongguoguanzhou",
    Company: "sndifneinsifnienisn",
    Age:   23,
    Sex:   "F",
    Proviece: "jianxi",
    Com:   "廣州蘭博基尼",
    PostTo:  "藍(lán)鯨XXXXXXXX",
    Buys:   "shensinfienisnfieni",
    Hos:   "zhonsndifneisnidnfie",
  }
  j, _ := json.Marshal(person)
  json.Unmarshal(j, &m)
  fmt.Println(m)
  fmt.Printf("duration:%d", time.Now().Sub(t))
}

output:
map[Proviece:jianxi Com:廣州蘭博基尼 Hos:zhonsndifneisnidnfie Name:zhaondifnei Company:sndifneinsifnienisn Buys:shensinfienisnfieni Age:23 PostTo:藍(lán)鯨XXXXXXXX Address:大沙地 School:廣州第十五中學(xué) City:zhongguoguanzhou Sex:F Id:98439 Email:dashdisnin@126.com]
duration:250467

二、通過(guò)反射形式生成map

func StructToMapViaReflect() {
  m := make(map[string]interface{})
  t := time.Now()
  person := Persion{
    Id:    98439,
    Name:   "zhaondifnei",
    Address: "大沙地",
    Email:  "dashdisnin@126.com",
    School:  "廣州第十五中學(xué)",
    City:   "zhongguoguanzhou",
    Company: "sndifneinsifnienisn",
    Age:   23,
    Sex:   "F",
    Proviece: "jianxi",
    Com:   "廣州蘭博基尼",
    PostTo:  "藍(lán)鯨XXXXXXXX",
    Buys:   "shensinfienisnfieni",
    Hos:   "zhonsndifneisnidnfie",
  }
  elem := reflect.ValueOf(&person).Elem()
  relType := elem.Type()
  for i := 0; i < relType.NumField(); i++ {
    m[relType.Field(i).Name] = elem.Field(i).Interface()
  }
  fmt.Println(m)
  fmt.Printf("duration:%d", time.Now().Sub(t))
}

output:
map[Buys:shensinfienisnfieni Name:zhaondifnei City:zhongguoguanzhou Sex:F Proviece:jianxi Com:廣州蘭博基尼 Id:98439 School:廣州第十五中學(xué) Address:大沙地 Age:23 PostTo:藍(lán)鯨XXXXXXXX Hos:zhonsndifneisnidnfie Email:dashdisnin@126.com Company:sndifneinsifnienisn]
duration:104239

結(jié)論

通過(guò)比較可以看出，通過(guò)反射的形式轉(zhuǎn)換基本上是通過(guò)json形式轉(zhuǎn)換的兩倍。

以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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