type Status struct {
slug string `json:"slug"`
}
type Instance struct {
Slug string `json:"slug"`
Stat map[string]*Status `json:"status"`
}
此次Json响应已收到API调用:
[ {
"status": {
"stop": false,
"traffic": true,
"label": null,
"dead": true,
"slug": "up",
},
"slug": "instances_raw",
"started_at": "15120736198",
"replacement": null
},
{
"status": {
"stop": false,
"traffic": true,
"label": null,
"dead": true,
"slug": "down",
},
"slug": "instance_raw2",
"started_at": "1512073194",
"replacement": null
}
]
我正在尝试将json编组到上面的结构中但遇到问题:
instances := make([]Instance, 0)
res := api call return above json
body, _ := ioutil.ReadAll(res.Body)
json.Unmarshal(body, &instances)
fmt.Println("I am struct %s",instances)
它正在编组:
I am struct %s [{ map[stop:0xc42018e1b0 dead:0xc42018e1e0 label:<nil> running:0xc42018e220 down:0xc42018e150 traffic:0xc42018e180]}]
有人可以帮我弄清楚为什么它不像我期待的那样编组吗?
预期的编组:
[{instances_raw map[slug:up]} {instances_raw2 map[slug:down]}]
答案 0 :(得分:2)
结构与数据结构不匹配。也许你想要这个:
type Status struct {
Slug string `json:"slug"`
}
type Instance struct {
Slug string `json:"slug"`
Stat Status `json:"status"`
}
输出:[{instances_raw {up}} {instance_raw2 {down}}]
或者这个:
type Instance struct {
Slug string `json:"slug"`
Stat map[string]interface{} `json:"status"`
}
输出:[{instances_raw map [label:dead:true slug:up stop:false traffic:true]} {instance_raw2 map [slug:down stop:false traffic:true label:dead:true]}]
始终检查错误。上面的示例JSON无效,json.Unmarshal函数报告此错误。