如何向 JSON 文件中的 interface{} 追加内容？

huangapple
go评论104阅读模式
英文:

How to append to an interface{} in json file

问题

我正在尝试将一个map[string]interface{}追加到一个现有的map[string]interface{}中的json文件中。

原始的json文件：

  1. {
  2.     "frames": {
  3.         "d_65541723636int": {
  4.             "objectId": "d_65541723636"
  5.         }
  6.     }
  7. }

期望追加后的json文件：

  1. {
  2.     "frames": {
  3.         "d_65541723636int": {
  4.             "objectId": "d_65541723636"
  5.         },
  6.         "anotherthing": {
  7.             "objectId": "d_65541723636"
  8.         }
  9.     }
  10. }

我应该如何实现这个功能？

英文:

I'm trying to append a map[string]interface{} to an existing map[string]interface{} in a json file.

Original json file:

  1. {
  2.    
  3.     "frames": {
  4.       "d_65541723636int": {
  5.         "objectId": "d_65541723636"
  6.       }
  7.     }
  8.  }

expect json file after append:

  1. {
  2.        
  3.  "frames": {
  4.     "d_65541723636int": {
  5.         "objectId": "d_65541723636"
  6.     }
  7.     "anotherthing": {
  8.         "objectId": "d_65541723636"
  9.     }
  10.  }
  11. }

How should I do it?

答案1

得分: 1

  1. import (
  2. 	"encoding/json"
  3. 	"fmt"
  4. )
  6. func main() {
  7. 	var m = make(map[string]interface{})
  8. 	sjson := `{
  9. 		"frames": {
  10. 			"d_65541723636int": {
  11. 				"objectId": "d_65541723636"
  12. 			}
  13. 		}
  14. 	}`
  15. 	json.Unmarshal([]byte(sjson), &m)
  16. 	m["anotherthing"] = make(map[string]interface{})
  17. 	m["anotherthing"].(map[string]interface{})["objectId"] = "d_65541723636"
  18. 	fmt.Printf("%v\n", m)
  19. }
  1. import (
  2. 	"encoding/json"
  3. 	"fmt"
  4. )
  6. func main() {
  7. 	var m = make(map[string]interface{})
  8. 	sjson := `{
  9. 		"frames": {
  10. 			"d_65541723636int": {
  11. 				"objectId": "d_65541723636"
  12. 			}
  13. 		}
  14. 	}`
  15. 	json.Unmarshal([]byte(sjson), &m)
  16. 	m["anotherthing"] = make(map[string]interface{})
  17. 	m["anotherthing"].(map[string]interface{})["objectId"] = "d_65541723636"
  18. 	fmt.Printf("%v\n", m)
  19. }
英文: 
  1. import (
  2. 	"encoding/json"
  3. 	"fmt"
  4. )
  6. func main() {
  7. 	var m = make(map[string]interface{})
  8. 	sjson := `{   
  9.     "frames": {
  10.       "d_65541723636int": {
  11.         "objectId": "d_65541723636"
  12.       }
  13.     }
  14.  }`
  15. 	json.Unmarshal([]byte(sjson), &m)
  16. 	m["anotherthing"] = make(map[string]interface{})
  17. 	m["anotherthing"].(map[string]interface{})["objectId"] = "d_65541723636"
  18. 	fmt.Printf("%v\n", m)
  19. }

huangapple
  • 本文由 发表于 2022年10月12日 11:55:46
  • 转载请务必保留本文链接：https://go.coder-hub.com/74036325.html
  • go
  • json
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