GO语言的JSON03---JSON文件的序列化与反序列化

package main

import (
	"encoding/json"
	"fmt"
	"os"
)

type Human2 struct {
	Name string
	Age int
	Rmb float64
	Gender bool
	Hobbies []string
}

func NewHuman2(name string, age int,rmb float64,hobbies []string) *Human2 {
	human := new(Human2)
	human.Name = name
	human.Age = age
	human.Rmb = rmb
	human.Hobbies = hobbies
	return human
}

/*编码结构体,map,切片到JSON文件*/
func main061() {
	dstFile, _ := os.OpenFile(`编码文件`, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0666)
	defer dstFile.Close()

	encoder := json.NewEncoder(dstFile)

	zqd := NewHuman2("张全蛋", 20,0.5,[]string{"抽烟", "喝酒","烫头"})
	zld := NewHuman2("张lia蛋", 30,0.5,[]string{"抽烟", "喝酒","烫头"})

	//dataMap := make(map[string]interface{})
	//dataMap["title"] = "东契奇字母哥创历史当选月最佳"
	//dataMap["date"] = "2019-12-04"
	//dataMap["author"] = "至尊狗仔"
	//dataMap["readers"] = 99999999

	humans := make([]Human2, 0)
	humans = append(humans, *zqd, *zld)

	err := encoder.Encode(humans)
	if err != nil{
		fmt.Println("编码human到json文件失败，err=",err)
		return
	}
	fmt.Println("编码human到json文件成功")
}

/*解码json文件为GO数据*/
func main() {
	//打开要编码的文件
	srcFile, _ := os.Open(`编码文件`)
	defer srcFile.Close()

	//创建于JSON结构想匹配的GO语言数据
	//retSlice := make([]Human2,0)
	retSlice := make([]map[string]interface{}, 0)

	//创建JSON文件的解码器
	decoder := json.NewDecoder(srcFile)

	//解码文件数据到GO数据的地址中
	err := decoder.Decode(&retSlice)
	//检查错误
	if err != nil{
		fmt.Println("解码json文件失败，err=", err)
		return
	}
	//打印结果
	fmt.Println("解码成功",retSlice)
}