81 lines
1.9 KiB
Go
81 lines
1.9 KiB
Go
package common
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import (
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"crypto/md5"
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"encoding/hex"
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"fmt"
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"io"
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"mime/multipart"
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"reflect"
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"strconv"
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)
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func GetFileMd5(file multipart.File) (string, error) {
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hash := md5.New()
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if _, err := io.Copy(hash, file); err != nil {
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return "", err
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}
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// 计算MD5并转换为16进制字符串
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md5Bytes := hash.Sum(nil)
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md5Str := hex.EncodeToString(md5Bytes)
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return md5Str, nil
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}
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func Bool2String(b bool) string {
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return strconv.FormatBool(b)
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}
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// StructToMapWithTag 将结构体转换为 map[string]string，key 使用指定标签的值
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func StructToMapWithTag(obj interface{}, tagName string) (map[string]string, error) {
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result := make(map[string]string)
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// 获取值的反射对象
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val := reflect.ValueOf(obj)
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if val.Kind() == reflect.Ptr {
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val = val.Elem() // 解引用指针
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}
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if val.Kind() != reflect.Struct {
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return nil, fmt.Errorf("input is not a struct or pointer to struct")
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}
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// 获取类型信息
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typ := val.Type()
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// 遍历结构体字段
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for i := 0; i < val.NumField(); i++ {
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field := val.Field(i)
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fieldType := typ.Field(i)
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// 获取字段的标签值
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tagValue := fieldType.Tag.Get(tagName)
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if tagValue == "" {
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continue // 如果标签不存在，跳过该字段
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}
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// 获取字段值并转换为字符串
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var fieldValue string
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switch field.Kind() {
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case reflect.String:
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fieldValue = field.String()
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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fieldValue = strconv.FormatInt(field.Int(), 10)
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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fieldValue = strconv.FormatUint(field.Uint(), 10)
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case reflect.Float32, reflect.Float64:
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fieldValue = strconv.FormatFloat(field.Float(), 'f', -1, 64)
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case reflect.Bool:
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fieldValue = strconv.FormatBool(field.Bool())
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default:
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// 如果字段类型不支持，跳过
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continue
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}
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// 将标签值和字段值存入 map
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result[tagValue] = fieldValue
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}
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return result, nil
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}
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