go中的类型嵌套json解码[复制]

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这个问题在这里已有答案：

• json.Marshal(struct) returns “{}” 2 answers
• json.Marshal（struct）返回“{}”2个答案

I try to Unmarshal some nested JSON in go, the structs go something along this

我尝试在go中解组一些嵌套的JSON，结构就是这样的

type GameState struct {
  missiles []*Missile
  others   []*Player
  you      *Player
}
type Message struct {
  gamestate   *GameState
  messagetype string
}
// json like {"gamestate":{...},"messagetype":"stateupdate"}

I've also put a running example online.

我还在线提供了一个运行示例。

Now when I use map[string]interface{} to Unmarshal everything gets deserialized. But the moment I use the structs to Unmarshal I get nil back, both as result and error.

现在，当我使用map [string] interface {}来解组时，所有内容都会被反序列化。但是当我使用结构组织Unmarshal时，我得到了nil，结果和错误。

How come?

怎么来的？

1 个解决方案

#1

All struct fields you want to marshal should start with uppercase letter (be public). This works https://play.golang.org/p/ReCp3BAfTb

您要编组的所有结构字段都应以大写字母开头（是公共的）。这适用于https://play.golang.org/p/ReCp3BAfTb