我的應用程序前端的 json 字符串是{"ticker":"glencore","dated":"25/5/2121","resource_name":"testing","latlong":"","type":"","measured":{"0":{"symbol":"4","grade":"4","grade_unit":"grams_per_ton","contained":"48000000","contained_unit":"t"},"1":{"symbol":"1","grade":"4","grade_unit":"grams_per_ton","contained":"48000000","contained_unit":"t"},"value":"5","unit":"tons"},"indicated":{"0":{"symbol":"4","grade":"1","grade_unit":"grams_per_ton","contained":"10000000","contained_unit":"t"},"1":{"symbol":"1","grade":"1","grade_unit":"grams_per_ton","contained":"10000000","contained_unit":"t"},"value":"4","unit":"tons"},"inferred":{"0":{"symbol":"4","grade":"2","grade_unit":"grams_per_ton","contained":"18000000","contained_unit":"t"},"1":{"symbol":"1","grade":"2","grade_unit":"grams_per_ton","contained":"18000000","contained_unit":"t"},"value":"3","unit":"tons"},"total":{"0":{"symbol":"4","grade":"3","grade_unit":"grams_per_ton","contained":"24000000","contained_unit":"t"},"1":{"symbol":"1","grade":"3","grade_unit":"grams_per_ton","contained":"24000000","contained_unit":"t"},"value":"2","unit":"tons"}}我要解碼的golang代碼是type HTTPMineral struct { Symbol string `json:"symbol"` Grade string `json:"grade"` GradeUnit string `json:"grade_unit"` Contained string `json:"contained"` ContainedUnit string `json:"contained_unit"` } type HTTPResource struct { Ticker string `json:"ticker"` ResourceName string `json:"resource_name"` DateOfRelease string `json:"dated"` Measured []HTTPMineral `json:"measured"` Indicated []HTTPMineral `json:"indicated"` Inferred []HTTPMineral `json:"inferred"` Total []HTTPMineral `json:"total"` }我不斷收到以下錯誤2020/11/30 16:36:34 unmarshaling error json: cannot unmarshal object into Go struct field HTTPResource.measured of type []main.HTTPMineralDecodedresource我確定它一定是我忽略的東西，但我已經看過好幾次了，我不明白我的結構是如何不正確的。非常感謝幫助
2 回答
炎炎設計
TA貢獻1808條經驗 獲得超4個贊
、等字段不是數組，它們是像數組一樣組織的 JSON 對象measured。indicated利用
Measured map[string]HTTPMineral
然后通過使用data.Measured["0"]而不是獲取項目data.Measured[0]
呼啦一陣風
TA貢獻1802條經驗 獲得超6個贊
Key Indicated、Inferred 和 Total 不是數組類型，它們是關聯數組（以鍵名作為索引）。
type HTTPMineral struct {
Symbol string `json:"symbol"`
Grade string `json:"grade"`
GradeUnit string `json:"grade_unit"`
Contained string `json:"contained"`
ContainedUnit string `json:"contained_unit"`
}
type SHttpMineral map[string]HTTPMineral
type PHttpMineral struct {
IHttpMineral
Value string `json:"value"`
Unit string `json:"unit"`
}
type HTTPResource struct {
Ticker string `json:"ticker"`
ResourceName string `json:"resource_name"`
DateOfRelease string `json:"dated"`
Measured PHttpMineral `json:"measured"`
Indicated PHttpMineral `json:"indicated"`
Inferred PHttpMineral `json:"inferred"`
Total PHttpMineral `json:"total"`
}
resource := &HTTPResource{}
if err := json.NewDecoder(r.Body).Decode(resource); err != nil {
log.Println("unmarshaling error ", err)
}
fmt.Println("Decodedresource")
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