Mybatis|opening session的空指针异常

1. 控制台错误代码
   `org.apache.ibatis.exceptions.PersistenceException:

Error opening session. Cause: java.lang.NullPointerException

Cause: java.lang.NullPointerException`

2. 原因
   核心配置文件的<environments default="development">和<environment id="database">的default和id的要一致

3. 修改
   <environments default="database">和<environment id="database">

标签：lang,java,opening,session,Mybatis,Cause,NullPointerException
来源： https://www.cnblogs.com/SuSVIP/p/15783907.html