diff --git a/snowy-web-app/pom.xml b/snowy-web-app/pom.xml
index 549aa129..21c3be20 100644
--- a/snowy-web-app/pom.xml
+++ b/snowy-web-app/pom.xml
@@ -50,18 +50,18 @@
         </dependency>
 
         <!-- mysql -->
-        <!-- <dependency>
+         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
             <version>${mysql.connector.java.version}</version>
-        </dependency>-->
+        </dependency>
 
         <!-- postgresql -->
-        <dependency>
+        <!--<dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
             <version>${postgres.connector.java.version}</version>
-        </dependency>
+        </dependency>-->
 
         <!-- oracle -->
         <!--<dependency>
diff --git a/snowy-web-app/src/main/resources/application.properties b/snowy-web-app/src/main/resources/application.properties
index 211461df..0f290229 100644
--- a/snowy-web-app/src/main/resources/application.properties
+++ b/snowy-web-app/src/main/resources/application.properties
@@ -21,19 +21,19 @@ spring.servlet.multipart.max-file-size=100MB
 #########################################
 
 # mysql
-#spring.datasource.dynamic.datasource.master.driver-class-name=com.mysql.cj.jdbc.Driver
-#spring.datasource.dynamic.datasource.master.url=jdbc:mysql://localhost:3306/snowy?useUnicode=true&characterEncoding=utf-8&useSSL=false&allowPublicKeyRetrieval=true&nullCatalogMeansCurrent=true&useInformationSchema=true
-#spring.datasource.dynamic.datasource.master.username=root
-#spring.datasource.dynamic.datasource.master.password=123456
-#spring.datasource.dynamic.strict=true
-
-# postgres
-spring.datasource.dynamic.datasource.master.driver-class-name=org.postgresql.Driver
-spring.datasource.dynamic.datasource.master.url=jdbc:postgresql://localhost:5432/snowy
-spring.datasource.dynamic.datasource.master.username=postgres
+spring.datasource.dynamic.datasource.master.driver-class-name=com.mysql.cj.jdbc.Driver
+spring.datasource.dynamic.datasource.master.url=jdbc:mysql://localhost:3306/snowy?useUnicode=true&characterEncoding=utf-8&useSSL=false&allowPublicKeyRetrieval=true&nullCatalogMeansCurrent=true&useInformationSchema=true
+spring.datasource.dynamic.datasource.master.username=root
 spring.datasource.dynamic.datasource.master.password=123456
 spring.datasource.dynamic.strict=true
 
+# postgres
+#spring.datasource.dynamic.datasource.master.driver-class-name=org.postgresql.Driver
+#spring.datasource.dynamic.datasource.master.url=jdbc:postgresql://localhost:5432/snowy
+#spring.datasource.dynamic.datasource.master.username=postgres
+#spring.datasource.dynamic.datasource.master.password=123456
+#spring.datasource.dynamic.strict=true
+
 # oracle
 #spring.datasource.dynamic.datasource.master.driver-class-name=oracle.jdbc.driver.OracleDriver
 #spring.datasource.dynamic.datasource.master.url=jdbc:oracle:thin:@//127.0.0.1:1521/XE?remarksReporting=true