初学mybatis出现了这个异常:
org.apache.ibatis.exceptions.PersistenceException:
### Error building SqlSession.
### The error may exist in SQL Mapper Configuration
### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.datasource.DataSourceException: Unknown DataSource property: driverClassName
通过调试发现错误出现在第三行代码
InputStream in = Resources.getResourceAsStream("SqlMapConfig.xml");
SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();
SqlSessionFactory factory = builder.build(in);
确定问题出在 SqlMapConfig.xml配置文件中
仔细检查自己的配置文件
<transactionManager type=""></transactionManager>
发现 tpye属性忘了赋值
<transactionManager type="JDBC"></transactionManager>
重新赋值之后成功链接上了数据库
本文地址:https://blog.csdn.net/weixin_45718916/article/details/107665683
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