golang encoding/json

 1 package main
 2 
 3 import (
 4 "bytes"
 5 "encoding/json"
 6 "fmt"
 7 )
 8 
 9 type ColorGroup struct {
10 ID int
11 Name string
12 Colors []string
13 }
14 
15 func main() {
16 
17 //---------------Marshal
18 group := ColorGroup{
19 ID: 1,
20 Name: "Reds",
21 Colors: []string{"Crimson", "Red", "Ruby", "Maroon"},
22  }
23 b, err := json.Marshal(group)
24 if err != nil {
25 fmt.Println("error:", err)
26  }
27 //os.Stdout.Write(b)
28 fmt.Println(string(b[:]))
29 
30 //---------------Unmarshal
31 var jsonBlob = []byte(`[
32 {"ID":1,"Name":"Reds1","Colors":["Crimson","Red1","Ruby1","Maroon1"]},
33 {"ID":2,"Name":"Reds2","Colors":["Crimson","Red2","Ruby2","Maroon2"]},
34 {"ID":3,"Name":"Reds3","Colors":["Crimson","Red3","Ruby3","Maroon3"]}
35  ]`)
36 
37 var animals []ColorGroup
38 error := json.Unmarshal(jsonBlob, &animals)
39 if error != nil {
40 fmt.Println("error:", error)
41  }
42 
43 //fmt.Printf("%+v", animals)
44 //fmt.Println(animals)
45 for i, x := range animals {
46  fmt.Println(i, x)
47 
48  }
49 //---------------Indent
50 dst := new(bytes.Buffer)
51 json.Indent(dst, jsonBlob, "##", "**")
52  fmt.Println(dst)
53 }

有疑问加站长微信联系(非本文作者)

• 请尽量让自己的回复能够对别人有帮助
• 支持 Markdown 格式, **粗体**、~~删除线~~、`单行代码`
• 支持 @ 本站用户;支持表情(输入 : 提示),见 Emoji cheat sheet
• 图片支持拖拽、截图粘贴等方式上传