取消编组时跳过解码Unicode字符串：golang

Question

I have this JSON:

{
    "code":"\u5728\u4e30\u5fb7\u5c14Berro\u8212\u9002\u76841\u623f\u5355\u4f4d"
}

And this struct

type Text struct {
    Code string
}

If I use any of the json.Unmarshal or NewDecoder.Decode, the Unicode is converted to the actual Chinese. So Text.Code is

在丰德尔Berro舒适的1房单位

I don't want it to convert, I want the same unicode string.

Answer 1

You can do this with custom decoder https://play.golang.org/p/H-gagzJGPI

package main

import (
    "encoding/json"
    "fmt"
)

type RawUnicodeString string

func (this *RawUnicodeString) UnmarshalJSON(b []byte) error {
    *this = RawUnicodeString(b)
    return nil
}

func (this RawUnicodeString) MarshalJSON() ([]byte, error) {
    return []byte(this), nil
}

type Message struct {
    Code RawUnicodeString
}

func main() {
    var r Message
    data := `{"code":"\u5728\u4e30\u5fb7\u5c14Berro\u8212\u9002\u76841\u623f\u5355\u4f4d"}`
    json.Unmarshal([]byte(data), &r)
    fmt.Println(r.Code)
    out, _ := json.Marshal(r)
    fmt.Println(string(out))
}