model

type TopicQuery struct {
    UserName string `form:"username" json:"username"`
    Page     int    `form:"page" json:"page" binding:"required"` //binding:required表示必须有这个参数，否则err := context.Bind(query)在写入结构体时检查key会报错
    PageSize int    `form:"pagesize" json:"pagesize"`
}

来自为知笔记(Wiz)