diff --git a/pywxdump/cli.py b/pywxdump/cli.py
index 46937dc..a9fa61c 100644
--- a/pywxdump/cli.py
+++ b/pywxdump/cli.py
@@ -155,7 +155,7 @@ class MainWxDbPath(BaseSubMainClass):
         # 添加 'wx_db_path' 子命令解析器
         parser.add_argument("-r", "--db_types", type=str,
                             help="(可选)需要的数据库名称(eg: -r MediaMSG;MicroMsg;FTSMSG;MSG;Sns;Emotion )",
-                            default="all", metavar="")
+                            default=None, metavar="")
         parser.add_argument("-wf", "--wx_files", type=str, help="(可选)'WeChat Files'路径", default=None,
                             metavar="")
         parser.add_argument("-id", "--wxid", type=str, help="(可选)wxid_,用于确认用户文件夹",
@@ -163,11 +163,11 @@ class MainWxDbPath(BaseSubMainClass):
         return parser
 
     def run(self, args):
+        print(f"[*] PyWxDump v{pywxdump.__version__}")
         # 从命令行参数获取值
-        db_types = args.require_list
+        db_types = args.db_types
         msg_dir = args.wx_files
         wxid = args.wxid
-
         ret = get_wx_db(msg_dir=msg_dir, db_types=db_types, wxids=wxid)
         for i in ret: print(i)
         return ret
@@ -243,7 +243,7 @@ class MainMerge(BaseSubMainClass):
             print(f"[+] 创建输出文件夹：{out_path}")
 
         print(f"[*] 合并中...（用时较久，耐心等待）")
-
+        dbpaths = [{"db_path": i} for i in dbpaths if os.path.exists(i)]  # 去除不存在的路径
         result = merge_db(dbpaths, out_path)
 
         print(f"[+] 合并完成：{result}")
diff --git a/pywxdump/server.py b/pywxdump/server.py
index 5c30aff..1e5f405 100644
--- a/pywxdump/server.py
+++ b/pywxdump/server.py
@@ -45,6 +45,7 @@ def start_falsk(merge_path="", wx_path="", key="", my_wxid="", port=5000, online
         print(f"[+] 创建临时文件夹：{work_path}")
 
     conf_auto_file = os.path.join(work_path, "conf_auto.json")  # 用于存放各种基础信息
+    at = "auto_setting"
 
     from flask import Flask, g
     from flask_cors import CORS
@@ -85,14 +86,21 @@ def start_falsk(merge_path="", wx_path="", key="", my_wxid="", port=5000, online
         def before_request():
             g.work_path = work_path  # 临时文件夹,用于存放图片等-新版本
             g.caf = conf_auto_file  # 用于存放各种基础信息-新版本
-            g.at = "auto_setting"  # 用于默认设置-新版本
+            g.at = at  # 用于默认设置-新版本
 
-        if merge_path: set_conf(conf_auto_file, g.at, "merge_path", merge_path)
-        if wx_path: set_conf(conf_auto_file, g.at, "wx_path", wx_path)
-        if key: set_conf(conf_auto_file, g.at, "key", key)
-        if my_wxid: set_conf(conf_auto_file, g.at, "my_wxid", my_wxid)
+        if merge_path:
+            set_conf(conf_auto_file, at, "merge_path", merge_path)
+            db_config = {
+                "key": "merge_all",
+                "type": "sqlite",
+                "path": "D:\\_code\\py_code\\pywxdumpProject\\z_test\\wxdump_work\\wxid_zh12s67kxsqs22\\merge_all.db"
+            }
+            set_conf(conf_auto_file, at, "db_config", db_config)
+        if wx_path: set_conf(conf_auto_file, at, "wx_path", wx_path)
+        if key: set_conf(conf_auto_file, at, "key", key)
+        if my_wxid: set_conf(conf_auto_file, at, "my_wxid", my_wxid)
         if not os.path.exists(conf_auto_file):
-            set_conf(conf_auto_file, g.at, "last", my_wxid)
+            set_conf(conf_auto_file, at, "last", my_wxid)
 
         app.register_blueprint(rs_api)
         app.register_blueprint(ls_api)
diff --git a/pywxdump/wx_core/wx_info.py b/pywxdump/wx_core/wx_info.py
index ad7c334..e383639 100644
--- a/pywxdump/wx_core/wx_info.py
+++ b/pywxdump/wx_core/wx_info.py
@@ -384,12 +384,12 @@ def get_wx_db(msg_dir: str = None,
     wxids = wxids.split(";") if isinstance(wxids, str) else wxids
     if not isinstance(wxids, list) or len(wxids) <= 0:
         wxids = None
-    db_types = db_types.split(";") if isinstance(db_types, str) else db_types
+    db_types = db_types.split(";") if isinstance(db_types, str) and db_types else db_types
     if not isinstance(db_types, list) or len(db_types) <= 0:
         db_types = None
 
     wxid_dirs = {}  # wx用户目录
-    if "All Users"in os.listdir(msg_dir) or  "Applet"in os.listdir(msg_dir) or "WMPF"in os.listdir(msg_dir):
+    if "All Users" in os.listdir(msg_dir) or "Applet" in os.listdir(msg_dir) or "WMPF" in os.listdir(msg_dir):
         for sub_dir in os.listdir(msg_dir):
             if os.path.isdir(os.path.join(msg_dir, sub_dir)) and sub_dir not in ["All Users", "Applet", "WMPF"]:
                 wxid_dirs[os.path.basename(sub_dir)] = os.path.join(msg_dir, sub_dir)