mybatis批量更新sqlsession

MyBatis provides a way to perform batch updates using the SqlSession interface. Here is an example of how you can use batch updates in MyBatis:

Open a new SqlSession:

SqlSession sqlSession = sqlSessionFactory.openSession();

Create a Mapper interface that defines the batch update method:

public interface MyMapper {
    void updateBatch(List<MyObject> objects);
}

Implement the batch update method in the mapper XML file:

<update id="updateBatch" parameterType="java.util.List">
    <foreach collection="list" item="item" separator=";">
        UPDATE my_table SET column1 = #{item.property1}, column2 = #{item.property2} WHERE id = #{item.id}
    </foreach>
</update>

Call the batch update method in your code:

List<MyObject> objects = new ArrayList<>();
// populate the objects list

MyMapper mapper = sqlSession.getMapper(MyMapper.class);
mapper.updateBatch(objects);

sqlSession.commit();

Close the SqlSession:

sqlSession.close();

This is a basic example of how to perform batch updates using MyBatis. You can customize the batch update method and SQL statements according to your specific requirements