1 package cn.shiyanjun.test;
2
3 import java.util.ArrayList;
4 import java.util.List;
5
6 public class ExcelTest3 {
7 List<Integer> rowData = getRowData(17);
8 public static void main(String[] args) {
9 ExcelTest3 excelTest3 = new ExcelTest3();
10 excelTest3.exportExcelTest();
11 }
12
13 // ==================================================================================================
14 public void exportExcelTest() {
15 int dataCount = rowData.size();//数据总数59
16 int exNum = 6;//每个文件导出数
17 int qryNum = 8;//已知查询数
18 int qryCount = getCount(dataCount,qryNum);
19 int end = 1;
20 int fileNum = 0;
21 List<Integer> list = new ArrayList<Integer>();
22
23 for (int i = 0; i < qryCount; i++) {
24 List<Integer> beanList = new ArrayList<Integer>();
25 if(i != (qryCount - 1)){//如果不是最后一次查询
26 beanList = queryForPage(i*qryNum, (i+1)*qryNum);//一次查8条
27 }else{
28 beanList = rowData.subList(i*qryNum, dataCount);
29 }
30 for (int j = 0; j < beanList.size(); j++) {//遍历这8条数据
31 list.add(beanList.get(j));
32 if(list.size() == exNum || (end ==qryCount && j == beanList.size() -1 )){
33 System.out.println((fileNum+1) + ".xls");//创建文件
34 System.out.println("导出"+list.size()+"条数据："+list);
35 list.clear();
36 fileNum++;
37 }
38 }
39 end++;
40 }
41
42
43 }
44
45 public List<Integer> queryForPage(int startIndex, int pageSize){
46 List<Integer> pageData = rowData.subList(startIndex, pageSize);
47 return pageData;
48 }
49
50
51 //根据count和rows来计算个数
52 public int getCount(int count, int rows) {
53 int num = 1;
54 if(count >= rows){
55 if(count % rows == 0){
56 num = count/rows;
57 }else{
58 num = count/rows + 1;
59 }
60 }
61 return num;
62 }
63
64
65 //创建一个包含若干2位随机整数的list集合
66 public List<Integer> getRowData(int count){
67 List<Integer> list = new ArrayList<Integer>();
68 for(int i = 0; i < count; i++){
69 // int num = (int) Math.round(Math.random()*90+10);
70 list.add(i);
71 }
72 return list;
73 }
74
75 public void printExcelApi(List<Integer> exList, List<Integer> list){
76 exList.addAll(list);
77 }
78
79
