golang結構體轉map
阿新 • • 發佈：2018-03-07
golang
package main
import (
"encoding/json"
"fmt"
"reflect"
"time"
)
type Body struct {
Person1 string
Age int
Salary float32
}
func Struct2Map(obj interface{}) (data map[string]interface{}, err error) {
data = make(map[string]interface{})
objT := reflect.TypeOf(obj)
objV := reflect.ValueOf(obj)
for i := 0; i < objT.NumField(); i++ {
data[objT.Field(i).Name] = objV.Field(i).Interface()
}
err = nil
return
}
func Test1() {
t := time.Now()
a := Body{"aaa", 2, 12.34}
elem := reflect.ValueOf(&a).Elem()
type_ := elem.Type()
m := map[string]interface{}{}
for i := 0; i < type_.NumField(); i++ {
m[type_.Field(i).Name] = elem.Field(i).Interface()
}
fmt.Println(time.Now().Sub(t), m)
}
func Test2() {
t := time.Now()
persion := Body{"aaa", 2, 12.34}
j, _ := json.Marshal(persion)
fmt.Println(time.Now().Sub(t), string(j))
}
func Test3() {
m := make(map[string]interface{})
t := time.Now()
persion := Body{"aaa", 2, 12.34}
j, _ := json.Marshal(persion)
json.Unmarshal(j, &m)
fmt.Println(time.Now().Sub(t), m)
}
func Test4() {
t := time.Now()
persion := Body{"aaa", 2, 12.34}
ret, _ := Struct2Map(persion)
fmt.Println(time.Now().Sub(t), ret)
}
func main() {
Test1()
Test2()
Test3()
Test4()
}
package main import ( "fmt" "reflect" "time" ) type User struct { Id int64 Username string Password string Logintime time.Time } func Struct2Map(obj interface{}) map[string]interface{} { t := reflect.TypeOf(obj) v := reflect.ValueOf(obj) var data = make(map[string]interface{}) for i := 0; i < t.NumField(); i++ { data[t.Field(i).Name] = v.Field(i).Interface() } return data } func main() { user := User{5, "zhangsan", "pwd", time.Now()} data := Struct2Map(user) fmt.Println(data) }
golang結構體轉map