go - 马提尼绑定(bind) "cannot return value obtained from unexported field or method"

Question

我有以下路线:

m.Post("/users", binding.Bind(models.User{}), func(user models.User, r render.Render)

当我尝试执行 Post 请求时收到以下错误消息:

"PANIC: reflect.Value.Interface: cannot return value obtained from unexported field or method"

type User struct {
    id         int
    UUID       string    `json:"uuid"`
    Username   string    `json:"userName" form:"userName" binding:"required"`
    Firstname  string    `json:"firstName" form:"Firstname" binding:"required`
    Lastname   string    `json:"lastName" form:"Lastname" binding:"required`
    Email      string    `json:"email" form:"Email" binding:"required`
    IsActive   bool      `json:"isActive"`
    DateJoined time.Time `json:"dateJoined"`
}

有人知道吗？

Answer 1

我现在知道问题了。

问题是用户结构的属性“id”。如果“id”重命名为“Id”，绑定(bind)过程将完美运行。

使用标记 form:"-" 可以忽略结构属性。

type User struct {
    id         int       `form:"-"`
    UUID       string    `json:"uuid"`
    Username   string    `json:"userName" form:"userName" binding:"required"`
    Firstname  string    `json:"firstName" form:"Firstname" binding:"required`
    Lastname   string    `json:"lastName" form:"Lastname" binding:"required`
    Email      string    `json:"email" form:"Email" binding:"required`
    IsActive   bool      `json:"isActive"`
    DateJoined time.Time `json:"dateJoined"`
}