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golang遍历json/处理json/读取全部的key value
发布于: 2021-01-24 更新于: 2025-02-26

golang如何遍历json呢?

在某些特定需求下,我们需要遍历json,并修改之,请参考下面的代码!!把key和value都打印了出来!

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package main

import (
"encoding/json"
"fmt"
)

func main() {
// Creating the maps for JSON
m := map[string]interface{}{}

// Parsing/Unmarshalling JSON encoding/json
err := json.Unmarshal([]byte(input), &m)

if err != nil {
panic(err)
}
parseMap(m)
}

func parseMap(aMap map[string]interface{}) {
for key, val := range aMap {
switch concreteVal := val.(type) {
case map[string]interface{}:
fmt.Println(key)
parseMap(val.(map[string]interface{}))
case []interface{}:
fmt.Println(key)
parseArray(val.([]interface{}))
default:
fmt.Println(key, ":", concreteVal)
}
}
}

func parseArray(anArray []interface{}) {
for i, val := range anArray {
switch concreteVal := val.(type) {
case map[string]interface{}:
fmt.Println("Index:", i)
parseMap(val.(map[string]interface{}))
case []interface{}:
fmt.Println("Index:", i)
parseArray(val.([]interface{}))
default:
fmt.Println("Index", i, ":", concreteVal)

}
}
}

const input = `
{
"data": [
{
"domain": "ni.suock.com",
"method": "GET",
"data": "empty data",
"path": "/node/clientnodelist",
"reply": "reply data1",
"base64reply": "reply data2"
},
{
"domain": "hi.nihao.com",
"method": "POST",
"data": "",
"path": "/base/captcha",
"reply": "reply data1",
"base64reply": ""
}
]
}
`

备注

  • json一定要{}方式打开
  • 支持数组里的每一项遍历打印
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