MYSQL : "Can't get hostname for your address"

    在做Docker集成WEB項目時，tomcat容器正常啓動，MySQL容器正常啓動，只是外部訪問tomcat進行數據庫操作時，應用報錯如下： Last packet sent to the server was 0 ms ago.); nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create

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