拥有此json文件:
{
"colors": [
["#7ad9ab", "#5ebd90", "#41a277", "#21875e", "#713517"],
["#5ebd90", "#41a277", "#21875e", "#006d46", "#561e00"],
["#005430"]
]
}
这段代码:
type Palette struct {
Colors []string
}
func TestStuff(t *testing.T) {
c, err := os.Open("palette.json")
if err != nil {
fmt.Printf("Error: %v", err.Error())
}
defer c.Close()
bc, _ := ioutil.ReadAll(c)
var palette []Palette //also tried with Palette
err = json.Unmarshal(bc, &palette)
if err != nil {
fmt.Printf("Error: %v \n", err.Error())
}
fmt.Printf("Data: %v", palette)
}
并不断获得:
错误:json:无法将数组解组到Go struct字段中 调色板。字符串类型的颜色
如果我更改调色板类型,则类似。提示?谢谢!
答案 0 :(得分:7)
您的JSON Blob在“ colors”元素中具有嵌套数组,因此您需要在Palette结构中嵌套颜色数组。将Palette的声明修改为Colors
类型的[][]string
可以解决此问题:
type Palette struct {
Colors [][]string
}
答案 1 :(得分:1)
您的json具有[] []字符串,而您未指定json属性名称:
package main
import (
"encoding/json"
"fmt"
)
type Palette struct {
Colors [][]string `json:"colors"`
}
func main() {
jsonStr := `{
"colors": [
["#7ad9ab", "#5ebd90", "#41a277", "#21875e", "#713517"],
["#5ebd90", "#41a277", "#21875e", "#006d46", "#561e00"],
["#005430"]
]
}`
var palette Palette
err := json.Unmarshal([]byte(jsonStr),&palette)
if err != nil {
fmt.Printf("Error: %v \n", err.Error())
}
fmt.Printf("Data: %v", palette)
}