结构体验证

使用gin框架的数据校验，可以不用解析数据，简少代码量。

package main
import (
    "fmt"
    "time"
    "github.com/gin-gonic/gin"
)
type Person struct {
    Age            int            `form:"age" binding:"required,gt=10"`
    Name        string        `form:"name" binding:"required"`
    Birthday    time.Time    `form:"birthday" time_format:"2006-01-02" time_utc
}
func main() {
    r := gin.Default()
    r.GET("/text", func(c *gin.Context) {
        var person Person
        if err := c.ShouldBind(&persion); err != nil {
            c.String(500, fmt.Sprint(err))
            return
        }
        c.String(200, fmt.Sprint("%#", person))
    })
    r.Run()
}

自定义校验

package main
import (
    "net/http"
    "reflect"
    "github.com/gin-gonic/gin"
    "github.com/gin-gonic/gin/binding"
    "gopkg.in/go-playground/validator.v8"
)
type Person struct {
    Age        int        `form:"age" binding:"required,gt=10"`
    Name    string     `form:"name" binding:"NotNullAndAdmin"`
    Address    string    `form:"address" binding:"required"`
}
// 自定义校验方法
func nameNotNullAndAdmin(v *validator.Validate, topStruct reflect.Value, currentStructOrField reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
    if value, ok := field.Interface().(string); ok {
        // 字段不能为空，并且不等于  admin
        return value != "" && !("5lmh" == value)
    }
    return true
}
func main() {
    r := gin.Default()
    if v, ok := binding.Validator.Engine().(*validator.Validate); ok {
        v.RegisterValidation("NotNullAndAdmin", nameNotNullAndAdmin)
    }
    r.GET("/test", func(c *gin.Context) {
        var person Person
        if err := c.ShouldBind(&person); err == nil {
            c.String(200, "%v", person)
        } else {
            c.String(500, "person bind err:%v", err.Error())
        }
    })
    r.Run()
}