Mapped Statements collection does not contain value哪位大神指導這是什么錯誤嗎
org.apache.ibatis.exceptions.PersistenceException:?
### Error querying database. ?Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for Message.getListDao
### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for Message.getListDao
at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:122)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:113)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:108)
at com.imooc.dao.ListDao.getListDao(ListDao.java:45)
at com.imooc.service.ListService.getListDao(ListService.java:18)
at com.imooc.service.ListService.main(ListService.java:22)
Caused by: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for Message.getListDao
at org.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:832)
at org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:665)
at org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:658)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:119)
... 5 more
2020-06-23
確認xml文件沒有寫錯，那就是位置的問題了，這是老外的答案?
2017-10-16
映射語句集合不包含值,原因可能是
1.mybatis的映射文件的命令空間與接口的全限定名不一致;
2有可能mybatis的映射文件名字與接口的類名字不一致;
3.還有一種情況就是接口聲明的方法在映射文件里面沒有。