详解Go开发Struct转换成map两种方式比较

Go  /  管理员 发布于 5年前   290

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:  "[email protected]",    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:  "[email protected]",    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:[email protected]]
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:  "[email protected]",    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:[email protected] 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。

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