Go：当 json.Unmarshal 到结构时，如何忽略类型不匹配错误？

Question

Assume I have a struct like

type A struct {
    Val1 int `json:"val1"`
    Val2 int `json:"val2"`
}

then:

str := `{"val1": "abc", "val2": 2}`
var a A
error := json.Unmarshal([]byte(jsonString),&a)

How can I ingore val1 type mismatch error? I just want to ignore errors when the types don't match, and parse normally if they match.

Answer 1

How can I ingore val1 type mismatch error? I just want to ignore errors when the types don't match, and parse normally if they match.

You cannot do that.

The best thing you can do is have the type eg interface{} or json.Number and decide later.