diff --git a/app.py b/app.py
new file mode 100644
index 0000000..8b3525b
--- /dev/null
+++ b/app.py
@@ -0,0 +1,7 @@
+from flask import Flask
+
+from config import get_config
+
+config = get_config()
+
+app = Flask(__name__)
diff --git a/config/__init__.py b/config/__init__.py
index b2e49c5..1f12718 100644
--- a/config/__init__.py
+++ b/config/__init__.py
@@ -1 +1 @@
-import settings
\ No newline at end of file
+from .utils import get_config
diff --git a/config/param.ini b/config/param.ini
new file mode 100644
index 0000000..42a7e9c
--- /dev/null
+++ b/config/param.ini
@@ -0,0 +1,12 @@
+[APIKey]
+tronscan=cc87d361-7cd6-4f69-a57b-f0a77a213355
+
+[PaymentAddresses]
+usdt=TB592A5QwHvvcJoCmvALmzT3S9Pux91Gub
+
+[MYSQL]
+user: 'your_mysql_username'
+password: 'your_mysql_password'
+host: 'localhost'
+database: 'your_database_name'
+autocommit: false
diff --git a/config/settings.py b/config/settings.py
deleted file mode 100644
index 4c79049..0000000
--- a/config/settings.py
+++ /dev/null
@@ -1,113 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: UTF-8 -*-
-"""
-@Project ：payment
-@File    ：__init__.py.py
-@IDE     ：PyCharm
-@Author  ：rengengchen
-@Time    ：2024/11/06 16:11
-"""
-import argparse
-import os
-import random
-import sys
-from argparse import Namespace
-from configparser import ConfigParser
-
-import requests
-from loguru import logger
-
-random_seed = 20240717
-ROOT_DIR = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
-
-
-def setup_seed(seed):
-    # import torch
-    # torch.manual_seed(seed)
-    # torch.cuda.manual_seed_all(seed)
-    # torch.backends.cudnn.deterministic = True
-    # import numpy as np
-    # np.random.seed(seed)
-    random.seed(seed)
-
-
-setup_seed(random_seed)
-
-
-class Config:
-    def __init__(self,
-                 config_parser: ConfigParser = None,
-                 argument_parser: Namespace = None,
-                 **kwargs):
-        if argument_parser:
-            for k in vars(argument_parser):
-                kwargs[k] = getattr(argument_parser, k)
-        if config_parser:
-            kwargs1 = kwargs.copy()
-            for section in config_parser.sections():
-                section1 = kwargs.setdefault(section, Config(**kwargs1))
-                for option in config_parser.options(section):
-                    section1[option] = config_parser.get(section, option)
-        self.config = {k: Config(**v) if isinstance(v, dict) else v for k, v in kwargs.items()}
-
-    def refresh(self, **kwargs):
-        kwargs = {k: Config(**v) if isinstance(v, dict) else v for k, v in kwargs.items()}
-        self.config.update(kwargs)
-
-    def get(self, item, default=None):
-        if item in self.config:
-            return self.config[item]
-        return default
-
-    def get_int(self, item):
-        v = self.get(item)
-        if v is not None:
-            return int(v)
-
-    def get_float(self, item):
-        v = self.get(item)
-        if v is not None:
-            return float(v)
-
-    def get_bool(self, item):
-        v = self.get(item)
-        if v is not None:
-            return bool(v)
-
-    def __getitem__(self, item):
-        return self.config[item]
-
-    def __setitem__(self, key, value):
-        self.config[key] = value
-
-    def __getattr__(self, key):
-        if key in self.__dict__:
-            return self.__dict__[key]
-        try:
-            return self.config[key]
-        except KeyError:
-            raise AttributeError(f"'{self}' object has no attribute '{key}'")
-
-    def __str__(self):
-        return str(self.config)
-
-
-def log_config(config):
-    # fmt = '%(asctime)s [%(name)s] %(levelname)s: %(message)s'
-    # datefmt = "%Y-%m-%d %H:%M:%S"
-    logger.remove()
-    logger.add(sys.stdout, level=config.log_level)
-    logger.add(sys.stderr, level="ERROR")
-    logger.add(os.path.join(ROOT_DIR, "logs", "{time}.log"), level="DEBUG", encoding='utf8', rotation="100 MB", retention=3)
-
-
-def get_config() -> Config:
-    requests.adapters.DEFAULT_RETRIES = 3
-
-    configparser = ConfigParser()
-    configparser.read(fr'{ROOT_DIR}/config_file/param.conf')
-    parser = argparse.ArgumentParser(description='payment system')
-    parser.add_argument("--seed", type=int, default=2024)
-    args = parser.parse_args()
-    config = Config(configparser, args)
-    return config
diff --git a/config/utils.py b/config/utils.py
new file mode 100644
index 0000000..4a6d836
--- /dev/null
+++ b/config/utils.py
@@ -0,0 +1,145 @@
+#!/usr/bin/env python
+# -*- coding: UTF-8 -*-
+"""
+@Project ：payment
+@File    ：__init__.py.py
+@IDE     ：PyCharm
+@Author  ：rengengchen
+@Time    ：2024/11/06 16:11
+"""
+import argparse
+import os
+import random
+import sys
+from argparse import Namespace
+from configparser import ConfigParser
+
+import requests
+from loguru import logger
+
+random_seed = 20240717
+ROOT_DIR = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
+
+
+def setup_seed(seed):
+    # import torch
+    # torch.manual_seed(seed)
+    # torch.cuda.manual_seed_all(seed)
+    # torch.backends.cudnn.deterministic = True
+    # import numpy as np
+    # np.random.seed(seed)
+    random.seed(seed)
+
+
+setup_seed(random_seed)
+
+
+class Setting:
+    def __init__(self,
+                 config_parser: ConfigParser = None,
+                 argument_parser: Namespace = None,
+                 _visited=None,
+                 _parent=None,
+                 **kwargs):
+        self._parent = _parent
+        if config_parser:
+            for section in config_parser.sections():
+                section_config = Setting(_parent=self)
+                for option in config_parser.options(section):
+                    section_config[option] = config_parser.get(section, option)
+                self.__dict__[section] = section_config
+
+        if argument_parser:
+            for k in vars(argument_parser):
+                self.__dict__[k] = getattr(argument_parser, k)
+
+        if _visited is None:
+            _visited = set()
+        self.update(_visited=_visited, **kwargs)
+
+    def update(self, _visited=None, **kwargs):
+        if _visited is None:
+            _visited = {}
+        for k, v in kwargs.items():
+            cls_attr = getattr(self.__class__, k, None)
+            if callable(cls_attr):
+                raise KeyError(f"The key '{k}' conflicts with an existing class method. you can use {k}_ instead.")
+            if isinstance(v, dict):
+                obj_id = id(v)
+                if obj_id in _visited:
+                    logger.warning(f"Circular reference detected in key: '{k}'.")
+                    v = _visited[obj_id]
+                else:
+                    v = Setting(_visited=_visited, _parent=self, **v)
+                    _visited[obj_id] = v
+            self.__dict__[k] = v
+
+    def get(self, item, default=None):
+        if item not in self.__dict__ and self._parent is not None:
+            return self._parent.get(item, default)
+        return default
+
+    def get_int(self, item):
+        return int(self.get(item))
+
+    def get_float(self, item):
+        return float(self.get(item))
+
+    def get_bool(self, item):
+        return bool(self.get(item))
+
+    def set(self, item, value):
+        self.__dict__[item] = value
+
+    def __getitem__(self, item):
+        return self.__dict__[item]
+
+    def __setitem__(self, key, value):
+        self.__dict__[key] = value
+
+    def __getattr__(self, key):
+        return self.get(key)
+
+    def __str__(self):
+        def _str_helper(config, indent=0, visited=None):
+            if visited is None:
+                visited = set()
+            lines = []
+            indent_str = '    ' * indent
+            for key, value in config.__dict__.items():
+                if key.startswith('_'):
+                    continue
+                if isinstance(value, Setting):
+                    if id(value) in visited:
+                        lines.append(f"{indent_str}{key}: <Circular Reference>")
+                    else:
+                        visited.add(id(value))
+                        lines.append(f"{indent_str}{key}:")
+                        lines.append(_str_helper(value, indent + 1, visited))
+                else:
+                    lines.append(f"{indent_str}{key}: {value}")
+            return '\n'.join(lines)
+
+        return _str_helper(self)
+
+
+def log_config(config):
+    # fmt = '%(asctime)s [%(name)s] %(levelname)s: %(message)s'
+    # datefmt = "%Y-%m-%d %H:%M:%S"
+    logger.remove()
+    logger.add(sys.stdout, level=config.log_level)
+    logger.add(sys.stderr, level="ERROR")
+    logger.add(os.path.join(ROOT_DIR, "logs", "{time}.log"), level="DEBUG", encoding='utf8', rotation="100 MB",
+               retention=3)
+
+
+def get_config(config_file=fr'{ROOT_DIR}/config/param.ini') -> Setting:
+    requests.adapters.DEFAULT_RETRIES = 3
+
+    configparser = ConfigParser()
+    configparser.read(config_file)
+    parser = argparse.ArgumentParser(description='payment system')
+    parser.add_argument("--seed", type=int, default=2024)
+    args = parser.parse_args()
+    config = Setting(configparser, args)
+    return config
diff --git a/utils/db_connection.py b/database.py
similarity index 100%
rename from utils/db_connection.py
rename to database.py
diff --git a/models/__init__.py b/models/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/repositories/order.py b/repositories/order.py
index cb92484..ac92ad8 100644
--- a/repositories/order.py
+++ b/repositories/order.py
@@ -1,20 +1,41 @@
 from ruamel_yaml.util import create_timestamp
 
 from custom_decorators import singleton
+from database import Database
+from utils.datetime import current_timestamp
 
 
 @singleton
 class OrderRepository:
-    def __init__(self):
-        self.db = None
+    def __init__(self, config):
+        self.db = Database(config['MYSQL'])
 
     def create(self, order_id, from_address, to_address):
-        create_time = create_timestamp()
-        pass
+        cur_time = current_timestamp()
+        try:
+            self.db.execute_query(
+                "INSERT INTO orders (order_id, from_address, to_address, create_timestamp, update_timestamp) "
+                "VALUES (%s, %s, %s, %s, %s)",
+                [order_id, from_address, to_address, cur_time, cur_time]
+            )
+            self.db.commit()
+        except Exception:
+            self.db.rollback()
+            raise
 
     def update_status(self, order_id, status):
-        # 更新状态和时间
-        pass
+        try:
+            self.db.execute_query("UPDATE orders "
+                                  "SET status = %s, update_timestamp = %s "
+                                  "WHERE order_id = %s",
+                                  [status, current_timestamp(), order_id])
+            self.db.commit()
+        except Exception:
+            self.db.rollback()
+            raise
 
     def get_order_info(self, order_id):
-        pass
+        self.db.execute_query("SELECT quant, from_address, to_address, create_timestamp "
+                              "FROM orders "
+                              "WHERE order_id = %s",
+                              [order_id])
diff --git a/repositories/user.py b/repositories/user.py
new file mode 100644
index 0000000..4eec1e9
--- /dev/null
+++ b/repositories/user.py
@@ -0,0 +1,40 @@
+from custom_decorators import singleton
+from database import Database
+from utils.database import pack_params
+
+
+@singleton
+class UserRepository:
+    def __init__(self, config):
+        self.db = Database(config['MYSQL'])
+
+    def get_user(self, phone=None, email=None, address=None):
+        params_sql, params = pack_params(phone=phone, email=email, address=address)
+        sql = f"SELECT name, phone, email, address FROM user WHERE {params_sql}"
+        cursor = self.db.execute_query(sql, params)
+        users = cursor.fetchall()
+        return users
+
+    def create_user(self, phone=None, email=None, address=None):
+        _, params = pack_params(phone=phone, email=email, address=address)
+        sql = f"INSERT INTO user (phone, email, address) VALUES (%s, %s, %s)"
+        self.db.execute_query(sql, params)
+        self.db.commit()
+
+    def record_exists(self, phone=None, email=None, address=None):
+        params_sql, params = pack_params(phone=phone, email=email, address=address)
+        sql = f"SELECT EXISTS(SELECT 1 FROM user WHERE {params_sql} LIMIT 1)"
+        cursor = self.db.execute_query(sql, params)
+        result = cursor.fetchone()
+        return bool(result[0])
+
+    def create_if_not_exists(self, phone=None, email=None, address=None):
+        if not self.record_exists(phone=phone, email=email, address=address):
+            self.create_user(phone=phone, email=email, address=address)
+
+    def get_and_create_if_not_exists(self, phone=None, email=None, address=None):
+        users = self.get_user(phone=phone, email=email, address=address)
+        if len(users) == 0:
+            self.create_user(phone=phone, email=email, address=address)
+        else:
+            return users
diff --git a/services/order.py b/services/order.py
index 3d944ec..b86a9a9 100644
--- a/services/order.py
+++ b/services/order.py
@@ -8,11 +8,11 @@ from utils.datetime import current, current_timestamp, is_time_difference_greate
 
 @singleton
 class OrderService:
-    def __init__(self):
-        self.order_repo = OrderRepository()
+    def __init__(self, config):
+        self.order_repo = OrderRepository(config)
         self.payment_service = PaymentService()
 
-    def create_order(self, from_address, to_address, *args, **kwargs):
+    def create_order(self, from_address, to_address):
         date_str = current().strftime('%Y%m%d%H%M%S')
         unique_id = str(uuid.uuid4()).split('-')[0]
         order_id = f"{date_str}-{unique_id}"
@@ -21,14 +21,14 @@ class OrderService:
 
     def finish_order(self, order_id):
         # 判断支付时间是否超过订单存活时间
-        quant, from_address, to_address, creation_timestamp = self.order_repo.get_order_info(order_id)
+        quant, from_address, to_address, create_timestamp = self.order_repo.get_order_info(order_id)
         current = current_timestamp()
         status = 0
-        if is_time_difference_greater_than(creation_timestamp, current, minutes=15):
+        if is_time_difference_greater_than(create_timestamp, current, minutes=15):
             # 订单超时
             status = 4
         else:
-            correct_quant, confirmed = self.payment_service.check_payment(quant, from_address, to_address, creation_timestamp, current)
+            correct_quant, confirmed = self.payment_service.check_payment(quant, from_address, to_address, create_timestamp, current)
             if correct_quant and confirmed:
                 # 支付成功
                 status = 1
diff --git a/services/user.py b/services/user.py
new file mode 100644
index 0000000..7fbae0d
--- /dev/null
+++ b/services/user.py
@@ -0,0 +1,6 @@
+from custom_decorators import singleton
+
+
+@singleton
+class UserService:
+    pass
diff --git a/utils/database.py b/utils/database.py
new file mode 100644
index 0000000..128d6a5
--- /dev/null
+++ b/utils/database.py
@@ -0,0 +1,10 @@
+def pack_params(**kwargs):
+    params = []
+    param_sqls = []
+    flag = False
+    for k, v in kwargs.items():
+        flag =  True
+        params.append(v)
+        param_sqls.append(f"{k}=%s")
+    if flag:
+        return " AND ".join(param_sqls), params