Go struct 转 map（利用反射reflect）
package main
import (
"fmt"
"reflect"
)
type User struct {
Id int `json:"id"`
Username string `json:"username"`
Password string `json:"password"`
}
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", "password"}
data := Struct2Map(user)
fmt.Printf("struct2map得到的map内容为:%v \n", data)
}