SSM提取單列數據報錯
Caused by: org.apache.ibatis.executor.ExecutorException: A query was run and no Result Maps were found for the Mapped Statement 'org.libM.dao.bookDao.getImage'.? It's likely that neither a Result Type nor a Result Map was specified.
單列數據的類型是String ,不是不用配置嗎?我如果配置成實體類的話,它不就是返回一個封裝的實體類?我不需要別的呀
2018-04-06
需要配置resultType類型的。