我有一個變量緩沖區，它將一組鍵值對存儲在表單的數組中：[{"Key":"area1", "Record": {"name":"belfast","type":"surburban","validity":"true"}},{Key,Record},{Key, Record}....]即緩沖區數組中的一組 Key-Record 對。現在我只想檢索具有特定記錄條目的鍵記錄對，例如，我只想要有效值為“true”的記錄，我想返回所有具有有效性字段值的鍵記錄對真的。有什么建議么 ？謝謝這是如何創建鍵記錄對的代碼段，之后我想過濾具有 true 有效性的鍵記錄var buffer bytes.Buffer buffer.WriteString("[") bArrayMemberAlreadyWritten := false for resultsIterator.HasNext() { queryResponse, err := resultsIterator.Next() if err != nil { return shim.Error(err.Error()) } // Add a comma before array members, suppress it for the first array member if bArrayMemberAlreadyWritten == true { buffer.WriteString(",") } buffer.WriteString("{\"Key\":") buffer.WriteString("\"") buffer.WriteString(queryResponse.Key) buffer.WriteString("\"") buffer.WriteString(", \"Record\":") // Record is a JSON object, so we write as-is buffer.WriteString(string(queryResponse.Value)) buffer.WriteString("}") bArrayMemberAlreadyWritten = true } buffer.WriteString("]")所以緩沖區數組有鍵記錄對，我想過濾它。
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TA貢獻1810條經驗 獲得超5個贊
如果可以unmarshal將數據放入結構體中，則可以使用以下代碼：
package main
import (
"encoding/json"
"fmt"
)
type DataStructure struct {
Key string `json:"Key"`
Record struct {
Name string `json:"name"`
Type string `json:"type"`
Validity bool `json:"validity"`
} `json:"Record"`
}
var data string = `[{"Key":"area1", "Record": {"name":"belfast","type":"surburban","validity":true}},{"Key":"area1", "Record": {"name":"belfast","type":"surburban","validity":false}}]`
func main() {
var datastruct []DataStructure
var result []DataStructure
if err := json.Unmarshal([]byte(data), &datastruct); err != nil {
panic(err)
}
for _, item := range datastruct {
if item.Record.Validity {
result = append(result, item)
}
}
fmt.Println(result)
}
輸入：
[{"Key":"area1", "Record": {"name":"belfast","type":"surburban","validity":true}},{"Key":"area1", "Record": {"name":"belfast","type":"surburban","validity":false}}]
預期結果：
[{Key:area1 Record:{Name:belfast Type:surburban Validity:true}}]
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