英文:
Nested Json Array constructs un-marshalling in golang
问题
我主要是在看如何在golang中解析下面的JSON数组。
{
"status": {"code": "SUCCESS"},
"result": {
"total_records": 1,
"records": [{
"last_modified_timestamp": 1501209015807,
"dns_servers": null,
"is_secured": false,
"nis_domains": null,
"storage_platform_resource_key": "e1ee32f9-6576-11e7-82a8-00a098697714",
"name": "vs1",
"nis_servers": null,
"created_timestamp": 1501208944094,
"dns_domains": null,
"key": "f59dacca-7379-11e7-82a8-00a098697714"
}]
}
}
我想提取这里的"key"字段。尝试了下面的语法，但无法成功获取我想要的内容。
var dat map[string]interface{}
// 反序列化JSON数据
if err := json.Unmarshal(body, &dat); err != nil {
fmt.Println(err)
}
svmRecordsMap := dat["result"].(map[string]interface{})["records"]
fmt.Printf("%+v", svmRecordsMap)
result := (svmRecordsMap["key"].([]interface{})[0]).(map[string]interface{})
在这里需要帮助。请注意，我不打算定义相应的结构并进行复制。
谢谢！
英文:
I was mainly looking at un-marshalling the below JSON array in golang.
{
"status":{"code":"SUCCESS"},
"result": {
"total_records":1,
"records": [{
"last_modified_timestamp":1501209015807,
"dns_servers":null,
"is_secured":false,
"nis_domains":null,
"storage_platform_resource_key":"e1ee32f9-6576-11e7-82a8-00a098697714",
"name":"vs1",
"nis_servers":null,
"created_timestamp":1501208944094,
"dns_domains":null,
"key":"f59dacca-7379-11e7-82a8-00a098697714"
}]
}
}
I am looking to extract the "key" field here. Tried the below syntax but not able to successfully get what i want.
var dat map[string]interface{}
// Unmarshall the JSON body
if err := json.Unmarshal(body, &dat); err != nil {
fmt.Println(err)
}
svmRecordsMap := dat["result"].(map[string]interface{})["records"]
fmt.Printf("%+v", svmRecordsMap)
result := (svmRecordsMap["key"].([]interface{})[0]).(map[string]interface{})
Any help here would be very much appreciated. Note that i am not looking at defining corresponding structs and making a copy.
Thanks!
答案1
得分: 0
我认为这个解决方案可以给你一个提示，告诉你如何从这个JSON中提取key，而不需要创建任何额外的type。
英文:
I think this solution can give you a hint what you suppose to do to extract keys from this JSON without any additional type creation.
答案2
得分: 0
我给你提供一个例子：https://play.golang.org/p/tReMMtGA2V
package main
import (
"encoding/json"
"fmt"
)
func main() {
txt := `{
"status":{"code":"SUCCESS"},
"result": {
"total_records":1,
"records": [{
"last_modified_timestamp":1501209015807,
"dns_servers":null,
"is_secured":false,
"nis_domains":null,
"storage_platform_resource_key":"e1ee32f9-6576-11e7-82a8-00a098697714",
"name":"vs1",
"nis_servers":null,
"created_timestamp":1501208944094,
"dns_domains":null,
"key":"f59dacca-7379-11e7-82a8-00a098697714"
}]
}
}`
var dat map[string]interface{}
if err := json.Unmarshal([]byte(txt), &dat); err != nil {
fmt.Println(err)
}
svmRecordsMap := dat["result"].(map[string]interface{})["records"]
fmt.Printf("%+v", svmRecordsMap)
result := svmRecordsMap.([]interface{})[0].(map[string]interface{})
fmt.Println(result)
}
在你的例子中，当你访问svmRecordsMap时，需要删除"[key]"。
英文:
I let you an example: https://play.golang.org/p/tReMMtGA2V
package main
import (
"encoding/json"
"fmt"
)
func main() {
txt := `{
"status":{"code":"SUCCESS"},
"result": {
"total_records":1,
"records": [{
"last_modified_timestamp":1501209015807,
"dns_servers":null,
"is_secured":false,
"nis_domains":null,
"storage_platform_resource_key":"e1ee32f9-6576-11e7-82a8-00a098697714",
"name":"vs1",
"nis_servers":null,
"created_timestamp":1501208944094,
"dns_domains":null,
"key":"f59dacca-7379-11e7-82a8-00a098697714"
}]
}
}`
var dat map[string]interface{}
if err := json.Unmarshal([]byte(txt), &dat); err != nil {
fmt.Println(err)
}
svmRecordsMap := dat["result"].(map[string]interface{})["records"]
fmt.Printf("%+v", svmRecordsMap)
result := (svmRecordsMap.([]interface{})[0]).(map[string]interface{})
fmt.Println(result)
}
In your example have to remove the "[key]" when you access to svmRecordsMap
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