@Test
public void rand(){
//生成数据
List<Map<String, Object>> list = new ArrayList<>();
for (int i = 0; i < 55; i++) {
Map<String,Object> map = new HashMap<>();
("se_id", i);
(map);
}
int stopIndext = 0;
int startIndext = 0;
int num = 10;
int size = ();
//循环次数
int fori = size%num==0 ? size/num : size/num+1;
//长度不足无需分批
if(num < size) {
for (int i = 0; i < fori; i++) {
//处理切分长度
stopIndext = (i==fori-1) ? stopIndext + size%num : stopIndext + num;
List<Map<String, Object>> lis = (startIndext, stopIndext);
//可以在此处写insert方法
((lis));
//清除切分后的数据
(0,stopIndext).clear();
stopIndext = startIndext;
}
}else {
//可以在此处写insert方法
((list));
}
}
如果支持引用第三方包的话,可以使用hutool工具包
import ;
// 切分list
List<List<Object>> split = (list, 500);