使用jdbc连接postgresql数据库时报错如下:
org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:
### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (????????: ?????? "uav_test " ??????)
### The error may exist in file [G:\Uav\NewMavenDemo\target\classes\mapper\UserMapper.xml]
### The error may involve UserMapper.getUserInfo
### The error occurred while executing a query
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (????????: ?????? "uav_test " ??????)
at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:79)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:447)
at com.sun.proxy.$Proxy27.selectList(Unknown Source)
关键的报错信息: Cannot create PoolableConnectionFactory (????????: ?????? "uav_test " ??????)
连接的参数如下:
#Postgresql
driver=org.postgresql.Driver
url=jdbc:postgresql://localhost:5432/uav_test
username=postgres
password=root
dialect=postgresql
当我把postgresql数据库改为使用mysql时就没有问题,mysql时的参数:
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/mysql
username=root
password=root
dialect=mysql
不太明白为什么会出现此种情况
填坑来了;
搞了半天,原来是误把uav_test这个连接名当成了数据库名,而且真实的报错信息是这样的: 致命错误: 数据库 "uav_test" 不存在,可能是因为编码格式问题,显示不了中文,导致寻找错误无从下手。
菜鸟才会犯得错啊
应该是sql语句写错了吧,