最近做Go开发的时候接触到了一个新的orm第三方框架gorose，在使用的过程中，发现没有类似beego进行直接对struct结构进行操作的方法，有部分API是通过map进行数据库相关操作，那么就需要我们把struct转化成map，下面是是我尝试两种不同struct转换成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:   "广州第十五中学",
        City:     "zhongguoguanzhou",
        Company:  "sndifneinsifnienisn",
        Age:      23,
        Sex:      "F",
        Proviece: "jianxi",
        Com:      "广州兰博基尼",
        PostTo:   "蓝鲸XXXXXXXX",
        Buys:     "shensinfienisnfieni",
        Hos:      "zhonsndifneisnidnfie",
    }
    j, _ := json.Marshal(person)
    json.Unmarshal(j, &m)
    fmt.Println(m)
    fmt.Println(time.Now().Sub(t))
}

一、通过struct转json，json转成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:   "广州第十五中学",
        City:     "zhongguoguanzhou",
        Company:  "sndifneinsifnienisn",
        Age:      23,
        Sex:      "F",
        Proviece: "jianxi",
        Com:      "广州兰博基尼",
        PostTo:   "蓝鲸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:广州兰博基尼 Hos:zhonsndifneisnidnfie Name:zhaondifnei Company:sndifneinsifnienisn Buys:shensinfienisnfieni Age:23 PostTo:蓝鲸XXXXXXXX Address:大沙地 School:广州第十五中学 City:zhongguoguanzhou Sex:F Id:98439 Email:dashdisnin@126.com]
duration:250467

二、通过反射形式生成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:   "广州第十五中学",
        City:     "zhongguoguanzhou",
        Company:  "sndifneinsifnienisn",
        Age:      23,
        Sex:      "F",
        Proviece: "jianxi",
        Com:      "广州兰博基尼",
        PostTo:   "蓝鲸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:广州兰博基尼 Id:98439 School:广州第十五中学 Address:大沙地 Age:23 PostTo:蓝鲸XXXXXXXX Hos:zhonsndifneisnidnfie Email:dashdisnin@126.com Company:sndifneinsifnienisn]
duration:104239

结论

通过比较可以看出，通过反射的形式转换基本上是通过json形式转换的两倍。