Golang在一个字段中使用多个json标记名称[重复]

Question

This question already has an answer here:

• How to define multiple name tags in a struct 2 answers

It it possible in Golang to use more than one name for a JSON struct tag ?

type Animation struct {
    Name    string  `json:"name"`
    Repeat  int     `json:"repeat"`
    Speed   uint    `json:"speed"`
    Pattern Pattern `json:"pattern",json:"frames"`
}

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Answer 1

See How to define multiple name tags in a struct on how you can define multiple tags on one struct field.

You can also use a type Info map[string]interface{} instead of your struct.

Or you can use both types in your structure, and make method Details() which will return right pattern.

type Animation struct {
    Name    string  `json:"name"`
    Repeat  int     `json:"repeat"`
    Speed   uint    `json:"speed"`
    Pattern Pattern `json:"pattern"`
    Frame   Pattern `json:"frames"`
}

func (a Animation) Details() Pattern {
    if a.Pattern == nil {
        return a.Frame
    }
    return a.Pattern
}