Golang如何从REST API的JSON响应中获取特定键（来自多层结构）

huangapple
go评论112阅读模式
英文:

Golang how to fetch specific key (from multistructure) from the rest api json response

问题

所需的JSON特定键是：status -> name和id的值

  1. getUrl := "https://www.test.com"
  3. reqTransitionID, err := http.NewRequest("GET", getUrl, nil)
  5. respTransitionID, err := client.Do(reqTransitionID)
  7. if err != nil {
  8.     log.Fatal(err)
  9. }
  10. defer respTransitionID.Body.Close()
  12. type Statuskey struct {
  13.     Id   string `json:"id"`
  14.     Name string `json:"name"`
  15. }
  17. type TransitionID struct {
  18.     Status Statuskey `json:"status"`
  19. }
  21. jsonData, errrr := ioutil.ReadAll(respTransitionID.Body)
  22. if errrr != nil {
  23.     fmt.Println("Error reading JSON data:", errrr)
  24.     return
  25. }
  27. fmt.Println(string(jsonData))
  28. var ss TransitionID
  29. json.Unmarshal(jsonData, &ss)
  30. fmt.Println(ss.Status)
  31. fmt.Println(ss.Status.Id)
  32. fmt.Println(ss.Status.Name)

我的JSON响应是：

  1. {  
  2.    "expand":"demo",
  3.    "id":"825",
  4.    "self":"TEST",
  5.    "key":"TEST",
  6.    "fields":{  
  7.       "status":{  
  8.          "self":"tst",
  9.          "description":"test",
  10.          "iconUrl":"test",
  11.          "name":"Closed",
  12.          "id":"6",
  13.          "statusCategory":{  
  14.             "self":"test",
  15.             "id":3,
  16.             "key":"done",
  17.             "colorName":"green",
  18.             "name":"Done"
  19.          }
  20.       }
  21.    }
  22. }
英文:

Required json specific key: status -> name and id values only

  1. getUrl := "https://www.test.com" 
  3. reqTransitionID, err := http.NewRequest("GET", getUrl, nil)
  5. respTransitionID, err := client.Do(reqTransitionID)
  7. if err != nil {
  8.     log.Fatal(err)
  9. }
  10. defer respTransitionID.Body.Close()
  12. type Statuskey struct {
  13.     Id   string `json:"id"`
  14.     Name string `json:"name"`
  15. }
  17. type TransitionID struct {
  18.     Status Statuskey `json:"status"`
  19. }
  21. jsonData, errrr := ioutil.ReadAll(respTransitionID.Body)
  22. if errrr != nil {
  23.     fmt.Println("Error reading JSON data:", errrr)
  24.     return
  25. }
  27. fmt.Println(string(jsonData))
  28. var ss TransitionID
  29. json.Unmarshal(jsonData, &ss)
  30. fmt.Println(ss.Status)
  31. fmt.Println(ss.Status.Id)
  32. fmt.Println(ss.Status.Name)

My Json response is :

  1. {  
  2.    "expand":"demo",
  3.    "id":"825",
  4.    "self":"TEST",
  5.    "key":"TEST",
  6.    "fields":{  
  7.       "status":{  
  8.          "self":"tst",
  9.          "description":"test",
  10.          "iconUrl":"test",
  11.          "name":"Closed",
  12.          "id":"6",
  13.          "statusCategory":{  
  14.             "self":"test",
  15.             "id":3,
  16.             "key":"done",
  17.             "colorName":"green",
  18.             "name":"Done"
  19.          }
  20.       }
  21.    }
  22. }

答案1

得分: 1

jsonDataSrc, err := ioutil.ReadAll(respTransitionID.Body)

if err != nil {
fmt.Println("读取JSON数据时出错:", err)
return
}

type Status struct {
Name string json:"name"
Id string json:"id"
}

type Fields struct {
Status Status json:"status"
}

type JsonResponse struct {
Fields Fields json:"fields"
}

res := JsonResponse{}
json.Unmarshal([]byte(jsonDataSrc), &res)

fmt.Println(res.Fields.Status.Id)
fmt.Println(res.Fields.Status.Name)

输出结果：
6
Closed

英文: 
  1. jsonDataSrc, errrr := ioutil.ReadAll(respTransitionID.Body)
  3. 						if errrr != nil {
  4. 							fmt.Println("Error reading JSON data:", errrr)
  5. 							return
  6. 						}
  8. 						type Status struct {
  9. 							Name string `json:"name"`
  10. 							Id   string `json:"id"`
  11. 						}
  13. 						type Fields struct {
  14. 							Status Status `json:"status"`
  15. 						}
  17. 						type JsonResponse struct {
  18. 							Fields Fields `json:"fields"`
  19. 						}
  21. 						res := JsonResponse{}
  22. 						json.Unmarshal([]byte(jsonDataSrc), &res)
  23. 						
  24. 						fmt.Println(res.Fields.Status.Id)
  25. 						fmt.Println(res.Fields.Status.Name)

output - 6
Closed

huangapple
  • 本文由 发表于 2016年12月22日 00:01:58
  • 转载请务必保留本文链接：https://go.coder-hub.com/41267046.html
  • go
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