douzhuo6931
douzhuo6931
2016-09-30 06:45

如何在Golang中将json字符串编组到bson文档以写入MongoDB?

已采纳

What I am looking is equivalent of Document.parse()

in golang, that allows me create bson from json directly? I do not want to create intermediate golang structs for marshaling

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  • douyin8623 douyin8623 5年前

    The gopkg.in/mgo.v2/bson package has a function called UnmarshalJSON which does exactly what you want.

    The data parameter should hold you JSON string as []byte value.

     func UnmarshalJSON(data []byte, value interface{}) error
    

    UnmarshalJSON unmarshals a JSON value that may hold non-standard syntax as defined in BSON's extended JSON specification.

    Example:

    var bdoc interface{}
    err = bson.UnmarshalJSON([]byte(`{"id": 1,"name": "A green door","price": 12.50,"tags": ["home", "green"]}`),&bdoc)
    if err != nil {
        panic(err)
    }
    err = c.Insert(&bdoc)
    
    if err != nil {
        panic(err)
    }
    
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