Golang gorilla 从表单中解析特定格式的日期

Question

我从表格中收到日期。该日期具有特定格式“dd/mm/yyyy”。

为了将其解析为我的结构，我使用 gorilla/schema 包，但该包无法将接收到的数据识别为日期。

我如何解析日期并将其放入正确的结构中？作为字段，其格式为“01/02/2006”

我的实现:

type User struct {
  Date   time.Time `schema:"date"`
}


func MyRoute(w http.ResponseWriter, r *http.Request) {
  user := User{}
  r.ParseForm()
  defer r.Body.Close()

  decoder := schema.NewDecoder()
  if err := decoder.Decode(&user, r.Form); err != nil {
     fmt.Println(err)
  }
  .......................
}

Answer 1

我还没有测试这个答案，因为我没有时间建立一个例子，但根据这个:http://www.gorillatoolkit.org/pkg/schema

The supported field types in the destination struct are:

• bool
• float variants (float32, float64)
• int variants (int, int8, int16, int32, int64)
• string
• uint variants (uint, uint8, uint16, uint32, uint64)
• struct
• a pointer to one of the above types
• a slice or a pointer to a slice of one of the above types

Non-supported types are simply ignored, however custom types can be registered to be converted.

所以你需要说:

var timeConverter = func(value string) reflect.Value {
    if v, err := time.Parse("02/01/2006", value); err == nil {
        return reflect.ValueOf(v)
    }
    return reflect.Value{} // this is the same as the private const invalidType
}

func MyRoute(w http.ResponseWriter, r *http.Request) {
    user := User{}
    r.ParseForm()
    defer r.Body.Close()
    decoder := schema.NewDecoder()
    decoder.RegisterConverter(time.Time{}, timeConverter)

    if err := decoder.Decode(&user, r.Form); err != nil {
        fmt.Println(err)
    }
}

参见:https://github.com/gorilla/schema/blob/master/decoder.go