demo.go

demo.go

package main

import (
	"encoding/json"
	"fmt"
)

type Source struct {
	ID        string      `json:"id"`
	Title     string      `json:"title"`
	Types     string      `json:"type"`
	Partition interface{} `json:"partition"`
}

func main() {

	jsonStr1 := `{
	"id": "node1",
	"name": "name1",
	"partition": [
		"title",
		"type",
		"value"
	]
}`

	var s1 Source
	if err := json.Unmarshal([]byte(jsonStr1), &s1); err != nil {
		panic(err)
	}

	// 类型推断
	if p, ok := s1.Partition.([]interface{}); ok {
		for i, v := range p {
			fmt.Printf("Index: %d Value: %s\n", i, v)
		}
	}

	jsonStr2 := `{
	"id": "node1",
	"name": "name1",
	"partition": {
		"key1": "value1",
		"key2": "value2"
	}
}`

	var s2 Source
	if err := json.Unmarshal([]byte(jsonStr2), &s2); err != nil {
		panic(err)
	}

	// 类型推断
	if p, ok := s2.Partition.(map[string]interface{}); ok {
		for k, v := range p {
			fmt.Printf("Key: %s Value: %s\n", k, v)
		}
	}

}

Result:

Index: 0 Value: title
Index: 1 Value: type
Index: 2 Value: value
Key: key1 Value: value1
Key: key2 Value: value2