增加time的函数,crypto的函数

tools/crypto.go

@@ -0,0 +1,85 @@
+package tools
+
+import (
+	"crypto/md5"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"math/big"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+// HashPassword 使用bcrypt加密密码
+func HashPassword(password string) (string, error) {
+	bytes, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	return string(bytes), err
+}
+
+// CheckPassword 验证密码
+func CheckPassword(password, hash string) bool {
+	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
+	return err == nil
+}
+
+// MD5 计算MD5哈希值
+func MD5(text string) string {
+	hash := md5.Sum([]byte(text))
+	return hex.EncodeToString(hash[:])
+}
+
+// SHA256 计算SHA256哈希值
+func SHA256(text string) string {
+	hash := sha256.Sum256([]byte(text))
+	return hex.EncodeToString(hash[:])
+}
+
+// GenerateRandomString 生成指定长度的随机字符串
+func GenerateRandomString(length int) string {
+	const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	b := make([]byte, length)
+	for i := range b {
+		num, _ := rand.Int(rand.Reader, big.NewInt(int64(len(charset))))
+		b[i] = charset[num.Int64()]
+	}
+	return string(b)
+}
+
+// GenerateRandomNumber 生成指定长度的随机数字字符串
+func GenerateRandomNumber(length int) string {
+	const charset = "0123456789"
+	b := make([]byte, length)
+	for i := range b {
+		num, _ := rand.Int(rand.Reader, big.NewInt(int64(len(charset))))
+		b[i] = charset[num.Int64()]
+	}
+	return string(b)
+}
+
+// GenerateSMSCode 生成短信验证码
+func GenerateSMSCode() string {
+	return GenerateRandomNumber(6)
+}
+
+// GenerateOrderNo 生成订单号
+func GenerateOrderNo(prefix string) string {
+	timestamp := GetTimestamp()
+	random := GenerateRandomNumber(6)
+	return fmt.Sprintf("%s%d%s", prefix, timestamp, random)
+}
+
+// GeneratePaymentNo 生成支付单号
+func GeneratePaymentNo() string {
+	return GenerateOrderNo("PAY")
+}
+
+// GenerateRefundNo 生成退款单号
+func GenerateRefundNo() string {
+	return GenerateOrderNo("RF")
+}
+
+// GenerateTransferNo 生成调拨单号
+func GenerateTransferNo() string {
+	return GenerateOrderNo("TF")
+}