*关于错误：org.apache.ibatis.datasource.DataSourceException: Unknown DataSource property: name

今天在测试mybatis时，出现了点问题。我把它总结了下来

错误提示：
log4j:WARN No appenders could be found for logger (org.apache.ibatis.logging.LogFactory).
log4j:WARN Please initialize the log4j system properly.
Exception in thread “main” 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: name
Type interface com.atguigu.mybatis.test.EmployeeMapper is not known to the MapperRegistry.

分析原因：
因为一开始使用了properties文件来连接数据库，用户名的键设成name，我在mybatis.xml里是这样写的

mybatis在这一块的非常严谨，要严格按照格式进行写即可避免这个错误

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