공통 엘러 페이지

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30000ms. ### The error may exist in file [/home/ec2-user/apache-tomcat-8.5.61/webapps/ROOT/WEB-INF/classes/mybatis/mapper/admin/ProductCategoryMapper.xml] ### The error may involve com.eagon.en.common.mapper.admin.ProductCategoryMapper.list ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30000ms.