diff --git a/src/main/java/vvpkassistant/OTP/model/OTPDTO.java b/src/main/java/vvpkassistant/OTP/model/OTPDTO.java
new file mode 100644
index 0000000..1250aa6
--- /dev/null
+++ b/src/main/java/vvpkassistant/OTP/model/OTPDTO.java
@@ -0,0 +1,12 @@
+package vvpkassistant.OTP.model;
+
+import lombok.Data;
+
+/*
+ * @author: ziin
+ * @date: 2025/8/14 20:53
+ */
+@Data
+public class OTPDTO {
+    private String secretKey;
+}
diff --git a/src/main/java/vvpkassistant/OTP/service/OTPService.java b/src/main/java/vvpkassistant/OTP/service/OTPService.java
new file mode 100644
index 0000000..6334270
--- /dev/null
+++ b/src/main/java/vvpkassistant/OTP/service/OTPService.java
@@ -0,0 +1,11 @@
+package vvpkassistant.OTP.service;
+
+import vvpkassistant.OTP.model.OTPDTO;
+
+/*
+ * @author: ziin
+ * @date: 2025/8/14 20:51
+ */
+public interface OTPService {
+    Object getOPT();
+}
diff --git a/src/main/java/vvpkassistant/OTP/service/OTPServiceImpl.java b/src/main/java/vvpkassistant/OTP/service/OTPServiceImpl.java
new file mode 100644
index 0000000..1658054
--- /dev/null
+++ b/src/main/java/vvpkassistant/OTP/service/OTPServiceImpl.java
@@ -0,0 +1,41 @@
+package vvpkassistant.OTP.service;
+
+import cn.hutool.core.codec.Base64;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import vvpkassistant.OTP.model.OTPDTO;
+import vvpkassistant.common.ErrorCode;
+import vvpkassistant.exception.BusinessException;
+
+import javax.crypto.Cipher;
+import javax.crypto.spec.SecretKeySpec;
+
+/*
+ * @author: ziin
+ * @date: 2025/8/14 20:51
+ */
+@Slf4j
+@Service
+public class OTPServiceImpl implements OTPService {
+
+    @Value("${IM-secretKey}")
+    private String IM_SecretKey;
+
+    @Override
+    public Object getOPT() {
+        try {
+            String otp = "000" + System.currentTimeMillis();
+            SecretKeySpec key = new SecretKeySpec(IM_SecretKey.getBytes(), "AES");
+            Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
+            byte[] otpBytes = otp.getBytes();
+            cipher.init(Cipher.ENCRYPT_MODE, key);
+            byte[] encryptedOTP = cipher.doFinal(otpBytes);
+            otp = Base64.encode(encryptedOTP);
+            return otp;
+        } catch (Exception e) {
+            log.error("Failed to generate GoEasy-OTP.", e);
+            throw new BusinessException(ErrorCode.SYSTEM_ERROR,"Failed to generate GoEasy-OTP.");
+        }
+    }
+}
diff --git a/src/main/java/vvpkassistant/User/service/UserServiceImpl.java b/src/main/java/vvpkassistant/User/service/UserServiceImpl.java
index 245e23a..e95b0df 100644
--- a/src/main/java/vvpkassistant/User/service/UserServiceImpl.java
+++ b/src/main/java/vvpkassistant/User/service/UserServiceImpl.java
@@ -133,10 +133,15 @@ public class UserServiceImpl extends ServiceImpl<UserDao, UserModel> implements
     @Override
     public UserModelVO addUserWithMail(UserModelDTO userModelDTO) {
         LambdaQueryWrapper<UserModel> lambdaQueryWrapper = new LambdaQueryWrapper<>();
+
+
+        LambdaQueryWrapper<UserModel> usernameWrapper = new LambdaQueryWrapper<>();
+
         lambdaQueryWrapper.eq(UserModel::getEmail,userModelDTO.getEmail());
         UserModel userModel = userDao.selectOne(lambdaQueryWrapper);
 
-        UserModel usernameModel = userDao.selectOne(lambdaQueryWrapper
+
+        UserModel usernameModel = userDao.selectOne(usernameWrapper
                 .eq(UserModel::getUserName, userModelDTO.getUserName()));
 
         if (userModel != null) {
@@ -341,9 +346,12 @@ public class UserServiceImpl extends ServiceImpl<UserDao, UserModel> implements
         if (mail != null && mail.isEmpty()) {
             throw new BusinessException(ErrorCode.SYSTEM_ERROR,"验证码过期或验证码错误");
         }
+        LambdaQueryWrapper<UserModel> duplicateMailUserWrapper = new LambdaQueryWrapper<>();
+
         LambdaQueryWrapper<UserModel> lambdaQueryWrapper = new LambdaQueryWrapper<>();
 
-        UserModel duplicateMailUser = userDao.selectOne(lambdaQueryWrapper.eq(UserModel::getEmail, mailModel.getMailAddress()));
+        UserModel duplicateMailUser = userDao.selectOne(duplicateMailUserWrapper
+                .eq(UserModel::getEmail, mailModel.getMailAddress()));
         if (duplicateMailUser != null) {
             throw new BusinessException(ErrorCode.SYSTEM_ERROR,"邮箱地址已被使用");
         }
diff --git a/src/main/java/vvpkassistant/controller/OTPController.java b/src/main/java/vvpkassistant/controller/OTPController.java
new file mode 100644
index 0000000..420db26
--- /dev/null
+++ b/src/main/java/vvpkassistant/controller/OTPController.java
@@ -0,0 +1,26 @@
+package vvpkassistant.controller;
+
+import org.springframework.web.bind.annotation.*;
+import vvpkassistant.Data.ResponseData;
+import vvpkassistant.OTP.model.OTPDTO;
+import vvpkassistant.OTP.service.OTPService;
+
+import javax.annotation.Resource;
+
+/*
+ * @author: ziin
+ * @date: 2025/8/14 20:50
+ */
+@RestController
+@RequestMapping("otp")
+public class OTPController {
+
+
+    @Resource
+    private OTPService otpService;
+
+    @GetMapping("/getopt")
+    public ResponseData<Object> getOTP() {
+        return ResponseData.success(otpService.getOPT());
+    }
+}
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index b1de7a4..bf19aed 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -60,3 +60,4 @@ dromara:
         domain: https://vv-1317974657.cos.ap-shanghai.myqcloud.com # 访问域名，注意“/”结尾，例如：https://abc.cos.ap-nanjing.myqcloud.com/
         base-path: /headerIcon/ # 基础路径
 
+IM-secretKey: 04452c3231ae4fe5
\ No newline at end of file