org.springframework.transaction.CannotCreateTransactionException:CouldnotopenJDBCConnectionfortransaction;nestedexceptionisorg.apache.commons.dbcp.SQLNestedException:CannotcreatePoolableConnectionFactory(Couldnotcreateconnectiontoda

Question

org.springframework.transaction.CannotCreateTransactionException:Could not open JDBC Connection for transaction; nested exception is org.apache.commons.dbcp.SQLNestedException:Cannot create PoolableConnectionFactory (Could not create connection to database server.Attempted reconnect 3 times.Giving up.)
at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:240)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:127)
at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:40)
at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)
at org.activiti.engine.impl.ProcessEngineImpl.(ProcessEngineImpl.java:81)
at org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl.buildProcessEngine(ProcessEngineConfigurationImpl.java:380)
at org.activiti.spring.SpringProcessEngineConfiguration.buildProcessEngine(SpringProcessEngineConfiguration.java:64)
at org.activiti.spring.ProcessEngineFactoryBean.getObject(ProcessEngineFactoryBean.java:56)
at org.activiti.spring.ProcessEngineFactoryBean.getObject(ProcessEngineFactoryBean.java:32)
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:142)
...44 more

Answer 1

先确保数据 库服务打开；
再看看账号密码端口是否正确,
还有驱动包