详解Go开发Struct转换成map两种方式比较
时间：2021-01-30 10:26:36|栏目：Golang|点击： 次
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。
