Question

我正在开发一个将Spring框架与Ibatis和C3P0连接池结合使用的应用程序。该系统连接到大约12个单独的数据库。

当其中一个数据库无法访问时，我在Spring生成的日志文件中得到一个堆栈跟踪（见下文）。但是，此日志记录缺少关于无法访问数据库的重要信息。

基本上，我希望在连接错误时记录jdbc连接字符串（无密码）。有没有一种简单的方法可以告诉Spring记录这个？

Invocation of init method failed; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!
Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!
Caused by: java.sql.SQLException: Connections could not be acquired from the underlying database!
        at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106)
        at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:529)
        at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
        at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:113)
        at org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy.getConnection(TransactionAwareDataSourceProxy.java:109)
        at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:113)
        at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79)
        at org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:183)
        at org.springframework.orm.ibatis.SqlMapClientTemplate.queryForObject(SqlMapClientTemplate.java:242)

...

Answer 1

您可以在Spring的ORM层中启用日志记录，如此（假设您使用log4j）：

log4j.logger.org.springframework.orm =微量，DEBUGLOG

您还可以使用P6Spy记录数据库连接。

最后，在IDE中如何在SQLException上设置断点（在抛出此异常时中断）？

如何在org.springframework.jdbc.CannotGetJdbcConnectionException上记录JDBC连接信息

1 个答案: