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golang json 编解码枚举字段映射包 - jsonmap
source link: https://studygolang.com/articles/36294
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golang json 编解码枚举字段映射包 - jsonmap
cg33 · 5天之前 · 469 次点击 · 预计阅读时间 1 分钟 · 大约8小时之前 开始浏览从数据源查出来到结构体，还需要映射返回输出，不想那么麻烦。试试这个包：
https://github.com/chenhg5/jsonmap
只需要在结构体的tag声明即可：
package main
import (
"encoding/json"
"fmt"
"github.com/chenhg5/jsonmap"
)
func main() {
var text = `{
"type": "cow"
}`
type Animal struct {
Type uint8 `json:"type" jsonmap:"0:dog;1:cat;2:cow;3:others"`
}
var animal = new(Animal)
_ = json.Unmarshal([]byte(text), jsonmap.Wrap(animal))
fmt.Printf("%+v\n", animal)
// &Animal{Type: 2}
res, _ := json.MarshalIndent(jsonmap.Wrap(animal), "", " ")
fmt.Println(string(res))
// {"type": "cow"}
}
dddd.
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