json - 如何在 JSON 文件中设置新日期

Question

我有一个工作代码:

data, err := ioutil.ReadFile("D:/Go/Go_project/Go_pro/firstfile.json")
    if err != nil {
        fmt.Print(err)
    }
    data1, err := ioutil.ReadFile("D:/Go/Go_project/Go_pro/secondfile.json")
    if err != nil {
        fmt.Print(err)
    }
    var migrations map[string]interface{}
    var migrations1 map[string]interface{}

err = json.Unmarshal([]byte(data), &migrations)
err = json.Unmarshal([]byte(data1), &migrations1)

if err != nil {
    log.Println("Error:", err)
}

layout := "2006-01-02T15:04:05.000Z"

t, err := time.Parse(layout, fmt.Sprint(migrations["date"]))
t1, err := time.Parse(layout, fmt.Sprint(migrations1["date"]))
if err != nil {
    fmt.Println(err)
}

firsthour := t.Hour()
secondhour := t1.Hour()

if firsthour == secondhour {
    result := make(map[string][]interface{})

    for k, v := range migrations {
        result[k] = append(result[k], v)
    }

    for k, v := range migrations1 {
        result[k] = append(result[k], v)
    }

    b, err := json.Marshal(result)
    if err != nil {
        fmt.Println(err)
    }

    os.Stdout.Write(b)

} else {
    err = json.Unmarshal([]byte(data), &migrations)
    if err != nil {
        panic(err)
    }

    err = json.Unmarshal([]byte(data1), &migrations1)
    if err != nil {
        panic(err)
    }

    a, err := json.Marshal(migrations)
    a2, err := json.Marshal(migrations1)
    if err != nil {
        fmt.Println(err)
    }

    os.Stdout.Write(a)
    os.Stdout.Write(a2)

最后我得到:

{"data":["is nice","is a good person"],"date":["2012-04-23T18:24:59.511Z","2012-04-23T18:25:00.511Z"],"name":["Kate","Gleison"]}

我需要如何更改代码，最终将得到:

  {
        "name":["kate","gleison"],
        "date":"2012-04-23T18:00:00.000Z",
        "data":["is nice","is a good person"]
    }

这是我的 2 个 json 文件。

第一的:

{
    "name":"Kate",
    "date":"2012-04-23T18:24:59.511Z",
    "data":"is nice"
}

第二:

{
    "name":"Gleison",
    "date":"2012-04-23T18:25:00.511Z",
    "data":"is a good person"
}

Answer 1

只是我的猜测(可能有更好的方法):

声明 result作为字符串到接口(interface)的映射并添加date单独的键(我将把它的值留给你。我也跳过了 else 部分，因为它似乎与问题无关):

if firsthour == secondhour { 

     result := make(map[string]interface{})

     result["date"] = "value_of_date"

     for k, v := range migrations {

         if k != "date" {


            if result[k] == nil {
               result[k] = make([]string, 0)
            }

            result[k] = append(result[k].([]string), v.(string))
         }

     }

     for k, v := range migrations1 {

         if k != "date" {


            if result[k] == nil {
               result[k] = make([]string, 0)
            }

            result[k] = append(result[k].([]string), v.(string))
         }

     }


     b, err := json.Marshal(result)
     if err != nil {
        fmt.Println(err)
     }

     fmt.Print(string(b))

} else { ... }