我有一個地圖對象，當使用json.Marshal(myMapObjct)Golang 對其進行序列化時，它會按字母順序對鍵進行排序，這會導致數據處理方式出現問題。將 JSON 結構創建為字節切片后，保留鍵順序很重要。是否可以以這種方式對其進行序列化，或者我是否需要為這種特定的邊緣情況編寫自己的序列化程序？這是負責生成 JSON 結構的代碼片段：// serializedTraffic wraps around naturalTraffic and serializes map to string.func serializedTraffic(payload string) (string, error) { trafficMap := naturalTraffic(string(payload)) traffic, err := json.Marshal(trafficMap) return string(traffic), err} // naturalTraffic obfuscates 'payload' into JSON-like structure.func naturalTraffic(payload string) map[string]string { // Decide on how many keys there will be in the JSON structure. indexChar := 0 maxChars := 126 minChars := 16 var jsonObject = make(map[string]string) // Build the JSON structure. for indexChar < len(payload) { rand.Seed(time.Now().UnixNano()) chunkSize := rand.Intn(maxChars-minChars) + minChars if len(payload) < indexChar+chunkSize { chunkSize = len(payload) - indexChar } key := randomPopularWord() jsonObject[key] = base64.StdEncoding.EncodeToString([]byte(payload[indexChar : indexChar+chunkSize])) indexChar += chunkSize } return jsonObject}
1 回答
繁花不似錦
TA貢獻1851條經驗 獲得超4個贊
根據建議，我提供了一種不同的結構來修復代碼。
type elem struct{ key, val string }
type object []elem
func (o object) MarshalJSON() (out []byte, err error) {
if o == nil {
return []byte(`null`), nil
}
if len(o) == 0 {
return []byte(`{}`), nil
}
out = append(out, '{')
for _, e := range o {
key, err := json.Marshal(e.key)
if err != nil {
return nil, err
}
val, err := json.Marshal(e.val)
if err != nil {
return nil, err
}
out = append(out, key...)
out = append(out, ':')
out = append(out, val...)
out = append(out, ',')
}
// replace last ',' with '}'
out[len(out)-1] = '}'
return out, nil
}
// serializedTraffic wraps around naturalTraffic and serializes map to string.
func serializedTraffic(payload string) (string, error) {
trafficMap := naturalTraffic(string(payload))
traffic, err := trafficMap.MarshalJSON()
return string(traffic), err
}
// naturalTraffic obfuscates 'payload' into JSON-like structure.
func naturalTraffic(payload string) object {
// Decide on how many keys there will be in the JSON structure.
indexChar := 0
maxChars := 126
minChars := 16
var jsonObject object
// Build the JSON structure.
for indexChar < len(payload) {
rand.Seed(time.Now().UnixNano())
chunkSize := rand.Intn(maxChars-minChars) + minChars
if len(payload) < indexChar+chunkSize {
chunkSize = len(payload) - indexChar
}
key := randomPopularWord()
jsonObject = append(jsonObject, elem{
key: key,
val: base64.StdEncoding.EncodeToString([]byte(payload[indexChar : indexChar+chunkSize])),
})
indexChar += chunkSize
}
return jsonObject
}
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