doumang20060820
2019-06-03 14:08
浏览 222
已采纳

使用golang生成嵌套的JSON

So what am I doing wrong here, am not really understanding how to generate a nested JSON structure:

I am getting "missing type in composite literal" exception. https://play.golang.org/p/pA1fpbQHbb0

package main

import "fmt"

type FamilyRequestBody struct {
    Family string `json:"family"`
}

type DataRequestBody struct {
    Family FamilyRequestBody `json:"family"`
}

type EventRequestBody struct {
    Account string `json:"account"`
    Player  string `json:"player"`
    Count   int    `json:"count"`
}

type TeamRequestBody struct {
    Account string `json:"account"`
    Team    string `json:"team"`
}

type PlayerRequestBody struct {
    Account string          `json:"account"`
    Team    string          `json:"team"`
    Player  string          `json:"player"`
    Data    DataRequestBody `json:"data"`
}

func main() {
    l := PlayerRequestBody{
        Account: "my-account",
        Team:    "12345",
        Player:  "23424234",
        Data:    {Family: "12345"},
    }

    fmt.Printf("%#v
", l)
}

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所以我在这里做错了什么,不是很了解如何生成嵌套的JSON结构:

我收到“复合文字中缺少类型”异常。 https:/ /play.golang.org/p/pA1fpbQHbb0

 包main 
 
import“ fmt” 
 
type FamilyRequestBody struct {
家庭字符串`json  :“ family”`
} 
 
type DataRequestBody结构{
 Family FamilyRequestBody json:“ family”`
} 
 
type EventRequestBody结构{
帐户字符串`json:“ account”`
播放器 字符串`json:“ player”`
计数int`json:“ count”`
} 
 
type TeamRequestBody结构{
帐户字符串`json:“ account”`
团队字符串`json:“ team”  
} 
 
type PlayerRequestBody struct {
帐户字符串`json:“ account”`
团队字符串`json:“ team”`
播放器字符串`json:“ player”`
 Data DataRequestBody`json  :“数据 “`
} 
 
func main(){
l:= PlayerRequestBody {
帐户:” my-account“,
团队:” 12345“,
玩家:” 23424234“,
数据:{ 族:“ 12345”},
} 
 
 fmt.Printf(“%#v 
”,l)
} 
 
   
 
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1条回答 默认 最新

  • doulin6448 2019-06-03 14:18
    已采纳

    Its pretty straight forward, you definded it like this:

    type PlayerRequestBody struct {
        Account string          `json:"account"`
        Team    string          `json:"team"`
        Player  string          `json:"player"`
        Data    DataRequestBody `json:"data"`
    
     l := PlayerRequestBody{
            Account: "my-account",
            Team:    "12345",
            Player:  "23424234",
            Data:    DataRequestBody{FamilyRequestBody{Family:"hello"}},
        }
    

    but wanted it to use it like that:

    type PlayerRequestBody struct {
        Account string           `json:"account"`
        Team    string           `json:"team"`
        Player  string           `json:"player"`
        Data    FamilyRequestBody`json:"family"`
    
     l := PlayerRequestBody{
            Account: "my-account",
            Team:    "12345",
            Player:  "23424234",
            Data:    {Family:"hello"}},
        }
    

    Your field Data is from type DataRequestBody like defined in your struct, you cant put another struct there. In golang there is no such thing as inheritance, and that is probably not what you wanted either.

    I agree that OP´s question is not JSON related, like Flimzy mentioned in the comments, but i leave the links for good measures.

    If that is not what you wanted, check out the many other questions explaining how json with go works, or use gobyexample, or the docs.

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