diff --git a/tests/examples/JDBC/taosdemo/src/main/resources/application.properties b/tests/examples/JDBC/taosdemo/src/main/resources/application.properties
index cbd25c82665a8fe9be12595570cd11c1b2f82448..6fd38f1762e6879422cf26fe2dc617caeb5e297c 100644
--- a/tests/examples/JDBC/taosdemo/src/main/resources/application.properties
+++ b/tests/examples/JDBC/taosdemo/src/main/resources/application.properties
@@ -1,21 +1,5 @@
-#spring.datasource.url=jdbc:mysql://master:3306/?useSSL=false&useUnicode=true&characterEncoding=UTF-8
-#spring.datasource.driver-class-name=com.mysql.jdbc.Driver
-#spring.datasource.username=root
-#spring.datasource.password=123456
-spring.datasource.url=jdbc:TAOS://:/?charset=UTF-8&locale=en_US.UTF-8&timezone=UTC-8
-spring.datasource.driver-class-name=com.taosdata.jdbc.TSDBDriver
-spring.datasource.username=root
-spring.datasource.password=taosdata
-#spring.datasource.url=jdbc:TAOS-RS://:/?charset=UTF-8&locale=en_US.UTF-8&timezone=UTC-8
-#spring.datasource.driver-class-name=com.taosdata.RestfulDriver
-#spring.datasource.username=root
-#spring.datasource.password=taosdata
-#spring.datasource.hikari.maximum-pool-size=1
-#spring.datasource.hikari.minimum-idle=1
-#spring.datasource.hikari.max-lifetime=0
-#logging.level.com.taosdata.taosdemo.dao=error
-
 jdbc.driver=com.taosdata.jdbc.rs.RestfulDriver
+#jdbc.driver=com.taosdata.jdbc.TSDBDriver
 hikari.maximum-pool-size=1
 hikari.minimum-idle=1
 hikari.max-lifetime=0
\ No newline at end of file