英文:
Unmarshaling string with repeated fields into json
问题
尝试将字符串解组为JSON，但我的结构定义无法工作。如何修复它？
package mainimport "fmt"import "encoding/json"func main() {x := `{"Header": {"Encoding-Type": ["gzip"],"Bytes": ["29"]}}`type HeaderStruct struct {A string `json:"Encoding-Type"`B []string `json:"Bytes"`}type Foo struct {Header HeaderStruct `json:"Header"`}var f Fooif e := json.Unmarshal([]byte(x), &f); e != nil {fmt.Println("Failed:", e)} else {fmt.Println("unmarshalled=", f)}}
尝试将A和B字段的标签添加到HeaderStruct结构体中的字段上，以指定JSON中的字段名称。这样，json.Unmarshal函数将能够正确地将JSON字符串解组到结构体中。
英文:
Trying to unmarshal a string into json, but my struct definitions don't work. How can it be fixed?
package mainimport "fmt"import "encoding/json"func main() {x := `{"Header": {"Encoding-Type": ["gzip"],"Bytes": ["29"]}}`type HeaderStruct struct {A stringB []string}type Foo struct {Header HeaderStruct}var f Fooif e := json.Unmarshal([]byte(x), &f); e != nil {fmt.Println("Failed:", e)} else {fmt.Println("unmarshalled=", f)}}
答案1
得分: 2
你的变量名与 JSON 键的名称不匹配，且它们都是 []string 类型。你可以这样做：
type HeaderStruct struct {A []string `json:"Encoding-Type"`B []string `json:"Bytes"`}
英文:
The names of your variables don't match the names of the json keys and both of them are []string. You can do
type HeaderStruct struct {A []string `json:"Encoding-Type"`B []string `json:"Bytes"}
答案2
得分: 1
你需要使用 JSON 注解来告诉解组器数据应该放在哪里，另外你的模型中的 A 类型是错误的，它也应该是一个数组。我还会将你字段的名称更改为有意义的内容...
type HeaderStruct struct {Encoding []string `json:"Encoding-Type"`Bytes []string `json:"Bytes"`}
英文:
You need json annotations to tell the unmarshaller which data goes where, also the type of A in your model is wrong, it should also be an array. I'm also going to change the names of your fields to something meaningful...
type HeaderStruct struct {Encoding []string `json:"Encoding-Type"`Bytes []string `json:"Bytes"}
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