新版本，代理功能上线

pkg/lzkit/crypto/crypto_url.go

@@ -0,0 +1,67 @@
+package crypto
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"encoding/base64"
+	"errors"
+	"io"
+)
+
+// AES CBC模式加密，Base64传入传出
+func AesEncryptURL(plainText, key []byte) (string, error) {
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return "", err
+	}
+	blockSize := block.BlockSize()
+	plainText = PKCS7Padding(plainText, blockSize)
+
+	cipherText := make([]byte, blockSize+len(plainText))
+	iv := cipherText[:blockSize] // 使用前blockSize字节作为IV
+	_, err = io.ReadFull(rand.Reader, iv)
+	if err != nil {
+		return "", err
+	}
+
+	mode := cipher.NewCBCEncrypter(block, iv)
+	mode.CryptBlocks(cipherText[blockSize:], plainText)
+
+	return base64.URLEncoding.EncodeToString(cipherText), nil
+}
+
+// AES CBC模式解密，Base64传入传出
+func AesDecryptURL(cipherTextBase64 string, key []byte) ([]byte, error) {
+	cipherText, err := base64.URLEncoding.DecodeString(cipherTextBase64)
+	if err != nil {
+		return nil, err
+	}
+
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+
+	blockSize := block.BlockSize()
+	if len(cipherText) < blockSize {
+		return nil, errors.New("ciphertext too short")
+	}
+
+	iv := cipherText[:blockSize]
+	cipherText = cipherText[blockSize:]
+
+	if len(cipherText)%blockSize != 0 {
+		return nil, errors.New("ciphertext is not a multiple of the block size")
+	}
+
+	mode := cipher.NewCBCDecrypter(block, iv)
+	mode.CryptBlocks(cipherText, cipherText)
+
+	plainText, err := PKCS7UnPadding(cipherText)
+	if err != nil {
+		return nil, err
+	}
+
+	return plainText, nil
+}

pkg/lzkit/lzUtils/sqlutls.go

@@ -36,3 +36,37 @@ func NullTimeToTime(nt sql.NullTime) time.Time {
 	}
 	return time.Time{} // 返回零值时间
 }
+
+// Int64ToNullInt64 将 int64 转换为 sql.NullInt64
+func Int64ToNullInt64(i int64) sql.NullInt64 {
+	return sql.NullInt64{
+		Int64: i,
+		Valid: i != 0, // 仅当 i 非零时才设置为有效
+	}
+}
+
+// NullInt64ToInt64 将 sql.NullInt64 转换为 int64
+func NullInt64ToInt64(ni sql.NullInt64) int64 {
+	if ni.Valid {
+		return ni.Int64
+	}
+	return 0 // 返回零值 int64
+}
+
+// Float64ToNullFloat64 将 float64 转换为 sql.NullFloat64
+// Valid 字段在 f 非零时设置为有效（注意：NaN 会被视为有效，需结合业务场景使用）
+func Float64ToNullFloat64(f float64) sql.NullFloat64 {
+	return sql.NullFloat64{
+		Float64: f,
+		Valid:   f != 0,
+	}
+}
+
+// NullFloat64ToFloat64 将 sql.NullFloat64 转换为 float64
+// 当 Valid 为 false 时，返回 float64 零值
+func NullFloat64ToFloat64(nf sql.NullFloat64) float64 {
+	if nf.Valid {
+		return nf.Float64
+	}
+	return 0.0
+}