mybatis动态批量插入

以下是Mybatis动态批量插入的示例代码：

public void batchInsert(List<User> userList) {
    SqlSession sqlSession = sqlSessionFactory.openSession(ExecutorType.BATCH, false);
    UserDao userDao = sqlSession.getMapper(UserDao.class);
    try {
        int batchCount = 1000; // 每批commit的个数
        int batchLastIndex = batchCount; // 每批最后一个的下标
        for (int index = 0; index < userList.size();) {
            if (batchLastIndex >= userList.size()) {
                batchLastIndex = userList.size();
                userDao.batchInsert(userList.subList(index, batchLastIndex));
                sqlSession.commit();
                break;// 数据插入完毕，退出循环
            } else {
                userDao.batchInsert(userList.subList(index, batchLastIndex));
                sqlSession.commit();
                index = batchLastIndex;// 设置下一批下标
                batchLastIndex = index + (batchCount - 1);
            }
        }
    } finally {
        sqlSession.close();
    }
}