wzshuang opened a new issue, #31449:
URL: https://github.com/apache/shardingsphere/issues/31449

   version: 5.2.1
   
   In my project, I have multi datasources, the yml file like this:
   ``` sql
     shardingsphere:
       datasource: 
         names: db_01,db_02,db_03
         db_01: 
           type: com.alibaba.druid.pool.DruidDataSource
           driver-class-name: com.mysql.cj.jdbc.Driver
           url: 
jdbc:mysql://127.0.0.1:3306/aaa?useunicode=true&rewriteBatchedStatements=true&characterEncoding=utf-8&useTimezone=true&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true&verifyServerCertificate=false&useSSL=false&zeroDateTimeBehavior=convertToNull&allowMultiQueries=true&nullCatalogMeansCurrent=true&autoReconnect=true
           username: aaa
           password: bbb
           initial-size: 2
           min-idle: 2
           max-active: 20
           query-timeout: 3
           max-wait: 10000
           connect-timeout: 10000
           socket-timeout: 60000
           time-between-eviction-runs-millis: 60000
           min-evictable-idle-time-millis: 300000
           max-evictable-idle-time-millis: 900000
           validation-query: SELECT 1 FROM DUAL
           max-wait-thread-count: 1000
         db_02: 
           type: com.alibaba.druid.pool.DruidDataSource
           driver-class-name: com.mysql.cj.jdbc.Driver
           url: 
jdbc:mysql://127.0.0.1:3306/aaa/gov_ds_330000?useunicode=true&rewriteBatchedStatements=true&characterEncoding=utf-8&useTimezone=true&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true&verifyServerCertificate=false&useSSL=false&zeroDateTimeBehavior=convertToNull&allowMultiQueries=true&nullCatalogMeansCurrent=true&autoReconnect=true
           username: aaa
           password: bbb
           initial-size: 2
           min-idle: 2
           max-active: 20
           query-timeout: 3
           max-wait: 10000
           connect-timeout: 10000
           socket-timeout: 60000
           time-between-eviction-runs-millis: 60000
           min-evictable-idle-time-millis: 300000
           max-evictable-idle-time-millis: 900000
           validation-query: SELECT 1 FROM DUAL
           max-wait-thread-count: 1000
         db_03:
           type: com.alibaba.druid.pool.DruidDataSource
           driver-class-name: com.mysql.cj.jdbc.Driver
           url: 
jdbc:mysql://127.0.0.1:3306/aaa?useunicode=true&rewriteBatchedStatements=true&characterEncoding=utf-8&useTimezone=true&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true&verifyServerCertificate=false&useSSL=false&zeroDateTimeBehavior=convertToNull&allowMultiQueries=true&nullCatalogMeansCurrent=true&autoReconnect=true
           username: aaa
           password: bbb
           initial-size: 2
           min-idle: 2
           max-active: 20
           query-timeout: 3
           max-wait: 10000
           connect-timeout: 10000
           socket-timeout: 60000
           time-between-eviction-runs-millis: 60000
           min-evictable-idle-time-millis: 300000
           max-evictable-idle-time-millis: 900000
           validation-query: SELECT 1 FROM DUAL
           max-wait-thread-count: 1000
   ```
   
   both datasource have same properties:
   ```
   initial-size: 2
   min-idle: 2
   max-active: 20
   query-timeout: 3
   max-wait: 10000
   connect-timeout: 10000
   socket-timeout: 60000
   time-between-eviction-runs-millis: 60000
   min-evictable-idle-time-millis: 300000
   max-evictable-idle-time-millis: 900000
   validation-query: SELECT 1 FROM DUAL
   max-wait-thread-count: 1000
   ```
   
   is there any way to config druid properties just once


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