diff --git a/mybatis516/src/main/resources/jdbc.properties b/mybatis516/src/main/resources/jdbc.properties
index 0058fcd..d0a6baf 100644
--- a/mybatis516/src/main/resources/jdbc.properties
+++ b/mybatis516/src/main/resources/jdbc.properties
@@ -1,4 +1,4 @@
 jdbc.driver=com.mysql.cj.jdbc.Driver
 jdbc.url=jdbc:mysql://localhost:3306/person_info?serverTimezone=Asia/Shanghai
 jdbc.username=root
-jdbc.password=zyx007
\ No newline at end of file
+jdbc.password=
\ No newline at end of file
diff --git a/mybatis517-518/src/main/resources/jdbc.properties b/mybatis517-518/src/main/resources/jdbc.properties
index 0058fcd..d0a6baf 100644
--- a/mybatis517-518/src/main/resources/jdbc.properties
+++ b/mybatis517-518/src/main/resources/jdbc.properties
@@ -1,4 +1,4 @@
 jdbc.driver=com.mysql.cj.jdbc.Driver
 jdbc.url=jdbc:mysql://localhost:3306/person_info?serverTimezone=Asia/Shanghai
 jdbc.username=root
-jdbc.password=zyx007
\ No newline at end of file
+jdbc.password=
\ No newline at end of file
diff --git a/mybatis519/src/main/resources/jdbc.properties b/mybatis519/src/main/resources/jdbc.properties
index 0058fcd..d0a6baf 100644
--- a/mybatis519/src/main/resources/jdbc.properties
+++ b/mybatis519/src/main/resources/jdbc.properties
@@ -1,4 +1,4 @@
 jdbc.driver=com.mysql.cj.jdbc.Driver
 jdbc.url=jdbc:mysql://localhost:3306/person_info?serverTimezone=Asia/Shanghai
 jdbc.username=root
-jdbc.password=zyx007
\ No newline at end of file
+jdbc.password=
\ No newline at end of file