mybatis批量插入大量数据，思路

public void test() {
    List<Map<String, Object>> list = null;
    Map<String, Object> m = new HashMap<>();
    for (int i = 0; i < 100; i++) {
        m.put("i", i);
        list.add(m);
    }
    int insertLength = list.size();
    int i = 0;
    while (insertLength > 50) {//mybatis foreach 30条速度比较快
        sysUserMapper.insert(list.subList(i, i + 50));
        i = i + 50;
        insertLength = insertLength - 50;
    }
    if (insertLength > 0) {
        sysUserMapper.insert(list.subList(i, i + insertLength));
    }
    i += list.size();
}