//++++++++++++++++++++++++++++++++++++++++
// 《Go Web编程实战派从入门到精通》源码
//++++++++++++++++++++++++++++++++++++++++
// Author:廖显东（ShirDon）
// Blog:https://www.shirdon.com/
// 仓库地址：https://gitee.com/shirdonl/goWebActualCombat
// 仓库地址：https://github.com/shirdonl/goWebActualCombat
//++++++++++++++++++++++++++++++++++++++++

package main

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
)

//定义配置文件解析后的结构
type MongoConfig struct {
	MongoAddr      string
	MongoPoolLimit int
	MongoDb        string
	MongoCollection       string
}

type Config struct {
	Port  string
	Mongo MongoConfig
}

func main() {
	JsonParse := NewJsonStruct()
	v := Config{}
	JsonParse.Load("./json_parse.json", &v)
	fmt.Println(v.Port)
	fmt.Println(v.Mongo.MongoDb)
}

type JsonStruct struct {
}

func NewJsonStruct() *JsonStruct {
	return &JsonStruct{}
}

func (js *JsonStruct) Load(filename string, v interface{}) {
	//ReadFile函数会读取文件的全部内容，并将结果以[]byte类型返回
	data, err := ioutil.ReadFile(filename)
	if err != nil {
		return
	}

	//读取的数据为json格式，需要进行解码
	err = json.Unmarshal(data, v)
	if err != nil {
		return
	}
}