json - 操纵mongodb的bson.D输出格式

Question

我正在使用FindOne查询一行数据(单个文档):
包主

import (
    "context"
    "fmt"
    "github.com/fatih/color" 
    "go.mongodb.org/mongo-driver/bson"
    "go.mongodb.org/mongo-driver/mongo"
    "go.mongodb.org/mongo-driver/mongo/options"
)

func mongoDbFindOne(key, value string) bson.D {
    var result bson.D
    _ = Collection.FindOne(context.TODO(), bson.D{{key, value}}).Decode(&result)
    color.Green("[+] Found: %+v\n", result)
    return result
}

这只是结果显示方式的一小部分:

[
    {
        "Key": "_id",
        "Value": "1600540844649"
    },
    {
        "Key": "hostname",
        "Value": "DESKTOP-xxxxxx"
    },
    {
        "Key": "cmdLine",
        "Value": []
    },
    {
        "Key": "pid",
        "Value": 4816
    }
]

但这就是我想要的样子:

[
    {
        "_id": "1600540844649"
    },
    {
        "hostname": "DESKTOP-xxxxxx"
    },
    {
        "cmdLine": []
    },
    {
        "pid": 4816
    }
]

或者:

[
    {
        "_id": "1600540844649",
        "hostname": "DESKTOP-xxxxxx",
        "cmdLine": [],
        "pid": 4816,
    }
]

我该怎么办？我已经搜索了SO和Google，但没有运气。我应该使用 struct还是创建任何对象？我还搜索了将bson保存/转换为json的方法，但是有解决方案。

Answer 1

我自己找到了解决方案:
使用bson.M而不是bson.D解决了我的问题:

import (
    "context"
    "fmt"
    "github.com/fatih/color" 
    "go.mongodb.org/mongo-driver/bson"
    "go.mongodb.org/mongo-driver/mongo"
    "go.mongodb.org/mongo-driver/mongo/options"
)

func mongoDbFindOne(key, value string) bson.M {
    var result bson.M
    _ = Collection.FindOne(context.TODO(), bson.M{key:value}).Decode(&result)
    color.Green("[+] Found: %+v\n", result)
    return result
}