WXingSong opened a new issue, #37103:
URL: https://github.com/apache/shardingsphere/issues/37103
I use sharding-jdbc.
I have configured the following data source configurations in YAML
```
dataSources:
ds0:
dataSourceClassName: com.mysql.cj.jdbc.Driver
driverClassName: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://127.0.0.1:3306/demo?serverTimezone=UTC&useSSL=false
username: root
password: 123456
initialSize: 5
maxActive: 20
minIdle: 5
maxWait: 60000
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: SELECT 1
ds1:
dataSourceClassName: com.mysql.cj.jdbc.Driver
driverClassName: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://127.0.0.1:3307/demo?serverTimezone=UTC&useSSL=false
username: root
password: 123456
initialSize: 5
maxActive: 20
minIdle: 5
maxWait: 60000
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: SELECT 1
```
the log output：testWhileIdle is true, validationQuery not set.
This means that the configuration is unavailable.
my druid version is 1.2.27
```
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.2.27</version>
</dependency>
```
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