golang 開發 Struct 轉換成 map 兩種方式比較

原文鏈接：https://www.jianshu.com/p/81c4304f6d1b

最近做Go開發的時候接觸到了一個新的orm第三方框架gorose，在使用的過程中，發現沒有類似beego進行直接對struct結構進行操作的方法，有部分API是通過map進行數據庫相關操作，那么就需要我們把struct轉化成map，下面是是我嘗試兩種不同struct轉換成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:    "[e-mail]",
        School:   "廣州第十五中學",
        City:     "zhongguoguanzhou",
        Company:  "sndifneinsifnienisn",
        Age:      23,
        Sex:      "F",
        Proviece: "jianxi",
        Com:      "廣州蘭博基尼",
        PostTo:   "藍鯨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struct轉json，json轉成map

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

二、通過反射形式生成map

func StructToMapViaReflect() {
    m := make(map[string]interface{})
    t := time.Now()
    person := Persion{
        Id:       98439,
        Name:     "zhaondifnei",
        Address:  "大沙地",
        Email:    "[e-mail]",
        School:   "廣州第十五中學",
        City:     "zhongguoguanzhou",
        Company:  "sndifneinsifnienisn",
        Age:      23,
        Sex:      "F",
        Proviece: "jianxi",
        Com:      "廣州蘭博基尼",
        PostTo:   "藍鯨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))
}