mybatis Invalid bound statement (not found)

解決方式：

1.mapper.xml與mapper.java放在相同目錄

2.mapper.xml放在resource目錄，目錄層次結構和mapper.java一致

如：java代碼  src/main/java/com/test/mapper/***Mapper.java

       xml文件   src/main/resources/com/test/mapper/***Mapper.xml