tszxlzc的专栏

先添加maven配置 <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <dependency> <groupId&g...

在spring配置中引入MapperScannerConfigurer bean，这个bean是入口，一般配置方法是 &amp;amp;amp;lt;bean class=&amp;amp;quot;org.mybatis.spring.mapper.MapperScannerConfigurer&amp;amp;quot;&amp;amp;amp;gt; &amp;amp;amp;lt;property name=&amp;amp;quot;

多个update语句&lt;update id="updateStudentUnreadLabelForEach"&gt; &lt;foreach collection="subjectiveSharedLabelCountDTOList" item="item" separator=";"&gt; update h_homework_student_copy set