出现的异常有:Could not close JDBC Connection,java.sql.SQLException: Already closed.,java.sql.SQLException: 关闭的连接, 出现这种断开的解决可以在数据源里设置一个testOnBorrow为true.在设置这个参数时还要设置validationQuery这个为一个最少返回一条数据的select语句。 org.apache.commons.dbcp.BasicDataSource数据...
org.springframework.jdbc.datasource.DataSourceUtils -564890472 [DefaultQuartzScheduler_Worker-2] ERROR org.springframework.jdbc.datasource.DataSourceUtils - Could not close JDBC Connection java.sql.SQLException: Already closed. at org.apache.tomcat.dbcp.dbcp.PoolableConnection.close(PoolableConnection.jav...
### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Access denied for user 'root '@'localhost' (using password: YES)) #...
### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot createPoolableConnectionFactory(Access deniedforuser'root '@'localhost'(using password: YES)) ### The ...
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection 这个问题困扰许久,许久。原来只是data source的properties引入文件,el表达式前必须加jdbc 原文解决参考:http://blog.csdn.net/liwuyang2013/article/details/25986597
driverClass=com.mysql.jdbc.Driver url=jdbc:mysql://localhost:3306/mysql user=root password=As3014 DBCP数据源配置如下: <!-- JNDI获取数据源(使用dbcp连接池) --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" scope="singleton"> <property name="...
Mysql报错:com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create co... 1、一开始我认为这个问题是因为在创建了了connection后使用完未关闭connection而又创立新的connection导致的,因此要在用完connection之后使用.close()方法将connection关闭。
JDBC c3p0 配置异常:java.sql.SQLException: Connections could not be acquired from the underlying database,程序员大本营,技术文章内容聚合第一站。
如果用连接池 把mysql的驱动包放入到 common\lib 的下面 这样就会好 如果用jdbc 那就放到工程下面的lib就ok了 在执行这句的时候出现问题 at com.mysql.jdbc.MysqlIO.quit(MysqlIO.java:1616)说的是你在终止一个线程时出了问题 看一下你的quit方法 当她调用MysqlIO.send时出的问题 ...
1、Why does the link marked with the discard connection not throw the error but continue 2、Why is there an anomaly in submitting things, Is it because the first link to be discarded also exists in the io.shardingjdbc.core.jdbc.adapter.AbstractConnectionAdapter#cachedConnections ...