是否可以用未知字段解组JSON?该字段名称总是不同,但结构是相同的。 JSON是POST请求的结果。
我的代码:
package main
import "fmt"
import "encoding/json"
var body = []byte(`{
"unknown_field": {
"known_field_1": [[1,2,3,4,5],[10,20,30,40,50],[100,200,300,400,500]],
"known_field_2": [[11,21,31,41,51]],
"known_field_3": [[12,22,32,42,52],[14,44,34,44,54]]
}
}`)
type MyStruct struct {
MainData map[string]mData `json:"-"`
}
type mData struct {
knownField1 [][5]int `json:"known_field_1"`
knownField2 [][5]int `json:"known_field_2"`
knownField3 [][5]int `json:"known_field_3"`
}
func NewMyStruct() MyStruct {
ms := MyStruct{}
ms.MainData = make(map[string]mData)
return ms
}
func main() {
myStruct := NewMyStruct()
if err := json.Unmarshal(body, &myStruct); err != nil {
panic(err)
}
fmt.Println(myStruct) // gives {map[]}
}
答案 0 :(得分:3)
如果您不知道密钥,只需使用地图,地图的值类型可以是描述结构的结构:
<DataGridTextColumn Binding="{Binding Value, Converter={StaticResource SetBitConverter}}"/>
请注意,您必须导出字段才能生效!
和解编码:
type mData struct {
KnownField1 [][5]int `json:"known_field_1"`
KnownField2 [][5]int `json:"known_field_2"`
KnownField3 [][5]int `json:"known_field_3"`
}
输出(在Go Playground)上尝试:
var data map[string]mData
if err := json.Unmarshal(body, &data); err != nil {
panic(err)
}
fmt.Println(data)
for k, v := range data {
fmt.Println(k, v)
}
参见相关问题:
How to parse/deserlize a dynamic JSON in Golang
Unmarshal JSON with unknown fields
Unmarshal json string to a struct that have one element of the struct itself