golang struct转map

struct转map

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) // 获取 obj 的类型信息
	v := reflect.ValueOf(obj)
	if t.Kind() == reflect.Ptr { // 如果是指针，则获取其所指向的元素
		t = t.Elem()
		v = v.Elem()
	}

	var data = make(map[string]interface{})
	if t.Kind() == reflect.Struct { // 只有结构体可以获取其字段信息
		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)
}