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// 空值校验工具 仅用于检验空字符串 其余类型请勿使用
package utils
import (
"errors"
"fmt"
"reflect"
)
func HasGap(input interface{}) error {
getType := reflect.TypeOf(input)
getValue := reflect.ValueOf(input)
// 获取方法字段
for i := 0; i < getType.NumField(); i++ {
field := getType.Field(i)
value := getValue.Field(i).Interface()
switch value.(type) {
case string:
if value == "" {
fmt.Printf("%s为空", field.Name)
return errors.New(fmt.Sprintf("%s为空", field.Name))
}
default:
if value == nil {
fmt.Printf("%s为空", field.Name)
return errors.New(fmt.Sprintf("%s为空", field.Name))
}
}
}
// 获取方法
// 1. 先获取interface的reflect.Type,然后通过.NumMethod进行遍历
//for i := 0; i < getType.NumMethod(); i++ {
// m := getType.Method(i)
// fmt.Printf("%s: %v\n", m.Name, m.Type)
//}
return nil
}