fix: 修改了数据库配置

src/main/resources/application.yml

@@ -1,6 +1,6 @@
 spring:
   datasource:
-    url: jdbc:mysql://localhost:3306/BlueWhale
+    url: jdbc:mysql://localhost:3306/BlueWhale?characterEncoding=utf-8&serverTimezone=Asia/Shanghai&useSSL=false
     username: root
     password: 123456
   jpa: