最新回答 / 天使踩麻木
这是错误类型### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!### The error...
2018-06-22
讲师回答 / 翔仔
同学好,可以参照 https://gitee.com/xiangze/areadisplay https://gitee.com/xiangze/demo 的源码配置,应该说你的Dao方面的配置没对导致的
2018-06-17
最新回答 / 慕用0639383
update tb_area SET priority=? last_edit_time=? where area_id = ?你这字段中间少逗号了吧?应该这样吧update tb_area SET priority=? ,last_edit_time=? where area_id = ?
2018-06-12
最赞回答 / 慕后端5211452
<!-- https://mvnrepository.com/artifact/c3p0/c3p0 --><dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version></dependency><...code...>
2018-06-10