public class MsgClient implements java.io.Serializable { /** id */ private java.lang.String id; // 电话号码(主键) @Excel(name = "电话号码", width = 20, orderNum = "2") private String clientPhone = null; // 客户姓名 @Excel(name = "姓名", orderNum = "1") private String clientName = null; // 所属分组 @ExcelEntity private MsgClientGroup group = null; // 备注 @Excel(name = "备注") private String remark = null; // 生日 @Excel(name = "出生日期", format = "yyyy-MM-dd", width = 20) private Date birthday = null; // 创建人 private String createBy = null; public class MsgClientGroup implements Serializable { /** * */ private static final long serialVersionUID = 6946265640897464878L; // 组名 @Excel(name = "分组") private String groupName = null; /** * 创建人 */ private String createBy; @Test public void test() throws Exception { List<MsgClient> list = new ArrayList<MsgClient>(); for (int i = 0; i < 25000; i++) { MsgClient client = new MsgClient(); client.setBirthday(new Date()); client.setClientName("小明" + i); client.setClientPhone("18797" + i); client.setCreateBy("jueyue"); client.setId("1" + i); client.setRemark("测试" + i); MsgClientGroup group = new MsgClientGroup(); group.setGroupName("测试" + i); client.setGroup(group); list.add(client); } Date start = new Date(); Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams("2412312", "测试"), MsgClient.class, list); System.out.println(new Date().getTime() - start.getTime()); File savefile = new File("d:/"); if (!savefile.exists()) { savefile.mkdirs(); } FileOutputStream fos = new FileOutputStream("d:/tt.xls"); workbook.write(fos); fos.close(); }| 测试No |
数据量
|
用时
|
|
1
|
25000
|
1381
|
|
2
|
25000
|
1292
|
|
3
|
50000
|
1551
|
|
4
|
50000
|
1604
|
| 测试No |
数据量
|
用时
|
|
1
|
25000
|
6276
|
|
2
|
25000
|
6342
|
|
3
|
50000
|
10014
|
|
4
|
50000
|
9897
|
| 测试No |
数据量
|
用时
|
|
1
|
25000
|
3224
|
|
2
|
25000
|
3457
|
|
3
|
50000
|
4044
|
|
4
|
50000
|
3924
|
原文地址:http://blog.csdn.net/qjueyue/article/details/41909577