Mybatis_IllegalArgumentException: Mapped Statements collection does not contain value for

java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for queryAllUser

可能原因是：resources路径下，mybatis-conf.xml中缺少了对应的mapper

<mapper resource="com/bruce/geekway/model/xml/DemoMapper.xml" />

另外需要注意：

1，