严重: StandardWrapper.Throwableorg.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!…
数据库无法连接(JDBC) 用户名密码正确,但是一直报错:Connection timed out 后来知道了原因:我用的是BAE提供的云mysql数据库,对访问的IP有限制 ,所以在本机上无法连接. ~~~~(>_<)~~~~ Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.SocketException MESSAGE: java.ne…
运行项目rds_web时,出现错误提示:Could not get JDBC Connection; nested exception is java.sql.SQLException: No suitable driver. 更详细的错误提示:org.apache.ibatis.exceptions.PersistenceException:### Error updating database.Cause: org.springframework.jdbc.CannotGetJdbcConn…
在一个SSM分布式项目中一个服务报错: ### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: ${jdbc.driver} ### The error may exist in com/pinyougou/mappe…
写jsp加载数据驱动以后老是提示Only a type can be imported. com.mysql.jdbc.Connection resolves to a package的错误,然而改成java就无报错 出错的原因:没有成功引入包 解决方法:将mysql-connector-java-5.1.39-bin.jar放到tomcat的bin目录下就可以解决 …