diff --git a/backend/demo/src/main/resources/application.properties b/backend/demo/src/main/resources/application.properties
index 90968f5..4472028 100644
--- a/backend/demo/src/main/resources/application.properties
+++ b/backend/demo/src/main/resources/application.properties
@@ -1,10 +1,12 @@
-# H2 Configuration (Ensure these are uncommented)
-spring.datasource.url=jdbc:h2:mem:testdb
-spring.datasource.driver-class-name=org.h2.Driver
-spring.datasource.username=sa
-spring.datasource.password=
-spring.h2.console.enabled=true
+# ========== 数据源 ==========
+spring.datasource.url=jdbc:mysql://mysql:3306/mydatabase?serverTimezone=Asia/Shanghai
+spring.datasource.username=myuser
+spring.datasource.password=secret
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
 
-# Required for JPA/Hibernate
-spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
-spring.jpa.hibernate.ddl-auto=update
\ No newline at end of file
+# ========== JWT 配置 ==========
+jwt.secret=YourJWTSecretKeyHere1234567890
+jwt.expirationMs=3600000
+
+# ========== 日志输出（可选） ==========
+logging.level.org.springframework.security=DEBUG