一、json反序列化

package main

import (
	"encoding/json"
	"fmt"
)

//定义一个结构体
type Monster struct {
	Name string `json:"name"`
	Age int `json:"age"`
	Birthday string `json:"birthday"`
	Sal float64 `json:"sal"`
	Skill string `json:"skill"`
}
//初始化结构体
func testStruct()  {
	monster := Monster{
		"老王",
		25,
		"1995-10-10",
		6000,
		"打工",
	}
	//将monster数据序列化
	bytes, err := json.Marshal(monster)
	if err != nil {
		fmt.Println("序列化失败",err)
	}
	//反序列化
	err = json.Unmarshal([]byte(string(bytes)), &monster)
	if err != nil {
		fmt.Println("反序列化失败:",err)
	}
	fmt.Println("结构体:",string(bytes))
	fmt.Println("结构体反序列化后:",monster)
}
//map序列化
func testMap()  {
	a := make(map[string]interface{})
	a["name"] = "小王"
	a["age"] = 12
	a["address"] = "成都"
	//将a序列化
	data, err := json.Marshal(a)
	if err != nil {
		fmt.Println("序列化错误:",err)
	}
	//反序列化
	err = json.Unmarshal([]byte(string(data)),&a)
	if err != nil {
		fmt.Println("反序列化失败:",err)
	}
	//fmt.Println("map序列化:",string(data))
	fmt.Println("map反序列化后:",a)

}
//切片序列化
func testSlice()  {
	var slice []map[string]interface{}
	b := make(map[string]interface{})
	b["name"] = "老李"
	b["age"] = 22
	b["address"] = "江苏"
	b2 := make(map[string]interface{})
	b2["name"] = "老妹"
	b2["age"] = 25
	b2["address"] = "北京"
	slice = append(slice, b)
	slice = append(slice, b2)
	data, err := json.Marshal(slice)
	if err != nil {
		fmt.Println("序列化错误:",err)
	}
	//反序列化
	err = json.Unmarshal([]byte(string(data)),&slice)
	if err != nil {
		fmt.Println("反序列化失败:",err)
	}
	//fmt.Println("切片序列化:",string(data))
	fmt.Println("切片反序列化后:",slice)
}

func main() {
  testStruct()
  testMap()
  testSlice()
}