Cannot create PoolableConnectionFactory (Communications link failure
問題：鏈接數據庫失敗！！ 解決辦法： 一、檢查鏈接配置，包括url、username、password在內的全部鏈接屬性是否正確； 二、關閉鏈接目標地址的防火牆（多是端口被攔截）； 三、更換高版本的mysql-connector-java.jar的jar包。
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- 1. Cannot create PoolableConnectionFactory (Communications link failure The last packet sent successfu
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- 4. com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
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- 6. com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
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- 8. Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure
- 9. sqoop import 報錯Communications link failure
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相關文章
- 1. Cannot create PoolableConnectionFactory (Communications link failure The last packet sent successfu
- 2. 數據庫連接失敗Cannot create PoolableConnectionFactory (Communications link failure
- 3. Communications link failure
- 4. com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
- 5. org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory
- 6. com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
- 7. MySQL的Communications link failure
- 8. Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure
- 9. sqoop import 報錯Communications link failure
- 10. com.mysql.jdbc.CommunicationsException: Communications link failure due to under