添加绑定所需的标签动态去杜松子酒

Question

type Person struct {
Name string `json:"name"`
Age int `json:"age"`
}

有没有办法添加

binding:"required"

到json:"name"而不进行硬编码？

Answer 1

也许您可以在句柄函数中动态覆盖结构，并且原始的Person结构保持不变。像这样：

func HandleSomething(c *gin.Context) {
type person struct {
Person 
Name string `json:"name" binding:"required"`
}
var p person
if err = c.ShouldBind(&p); err != nil {
err = errors.Wrap(util.ErrParams, err.Error())
return
}
response = util.BuildResponse(middleware.PassCode, "Success", list)
c.JSON(http.StatusOK, response)
return
}