一篇在一個Excel表中建立多個sheet的代碼

 1 package projectUtil;
 2 
 3 import org.apache.commons.lang3.StringUtils;
 4 import org.apache.poi.hssf.usermodel.*;
 5 import org.apache.poi.ss.usermodel.HorizontalAlignment;
 6 import org.apache.poi.ss.usermodel.VerticalAlignment;
 7 
 8 import java.util.List;
 9 import java.util.Map;
10 
11 /**
12  * 建立Excel表
13  * @author tian
14  * @date 2019/3/2315:46
15  */
16 public class WorkbookUtil {
17     private HSSFWorkbook workbook = new HSSFWorkbook();// 建立一個Excel文件
18 
19 
20     public HSSFWorkbook getWorkbook() {
21         return this.workbook;
22     }
23 
24     public HSSFSheet writeExcel(List<Map<String, Object>> list, List<String> head, String sheetName) {
25         HSSFSheet sheet;// 建立一個Excel的Sheet
26         if (!StringUtils.isBlank(sheetName)) {
27             sheet = workbook.createSheet(sheetName);// 建立一個Excel的Sheet
28         } else {
29             sheet = workbook.createSheet("Sheet");// 建立一個Excel的Sheet
30         }
31         HSSFRow row4 = sheet.createRow(0);
32 
33         HSSFCellStyle style4 = workbook.createCellStyle();
34         style4.setAlignment(HorizontalAlignment.CENTER);//水平居中
35         style4.setVerticalAlignment(VerticalAlignment.CENTER);//垂直居中
36         style4.setWrapText(true);//自動換行
37         style4.setAlignment(HorizontalAlignment.CENTER);//水平居中
38         style4.setVerticalAlignment(VerticalAlignment.CENTER);//垂直居中
39         HSSFFont font4 = workbook.createFont();
40         // font.setFontName("華文行楷");//設置字體名稱
41         font4.setFontHeightInPoints((short) 12);//設置字號
42         // font4.setBold( true);
43         style4.setFont(font4);
44         for (int i = 0; i < head.size(); i++
45         ) {
46             sheet.setColumnWidth(i, 20 * 256);
47             HSSFCell cell4_1 = row4.createCell(i);
48             cell4_1.setCellValue(head.get(i));
49             cell4_1.setCellStyle(style4);
50         }
51         for (int i = 0; i < list.size(); i++) {
52             HSSFRow row5 = sheet.createRow(i + 1);
53             for (int y = 0; y < head.size(); y++
54             ) {
55                 HSSFCell cell5_1 = row5.createCell(y);
56                 cell5_1.setCellValue(list.get(i).get(head.get(y)) == null ? "" : list.get(i).get(head.get(y)) + "");
57                 cell5_1.setCellStyle(style4);
58             }
59 
60         }
61 
62         return sheet;
63     }
64 
65 
66 }

　　　　本身寫的工具類，能夠參考一下，若是有bug但願各位大俠指教。

 1    List<Map<String, Object>> rows = new ArrayList<>();
 2         List<Map<String, Object>> zifu = new ArrayList<>();
 3         List<Map<String, Object>> yinhang = new ArrayList<>();
 4         for (Map one : list) {
 5             Integer state = (Integer) one.get("state");
 6             Map<String, Object> reMap = new LinkedHashMap<>();
 7             reMap.put("提現編號", one.get("id"));
 8             reMap.put("用戶ID", one.get("userId"));
 9             reMap.put("用戶名稱", one.get("name"));
10             reMap.put("用戶手機號", one.get("phone"));
11             reMap.put("銀行卡戶主名稱", one.get("userName"));
12             reMap.put("銀行", one.get("bankName"));
13             reMap.put("所屬支行", one.get("subBranchName"));
14             reMap.put("銀行卡號", one.get("cardNumber"));
15             reMap.put("提現金額", one.get("arrivalAmountMoney"));
16             reMap.put("提現狀態", state == -1 ? "處理中" : state == 1 ? "已處理" : state == 0 ? "待處理" : state == 2 ? "信息錯誤" : "千萬不要打款");
17             reMap.put("支付寶帳號", one.get("withdraw"));
18             reMap.put("提現方式", (Integer) one.get("withdrawType") == 0 ? "支付寶" : "銀行卡");
19             reMap.put("備註", one.get("remark"));
20             reMap.put("打款進度", "");
21             rows.add(reMap);
22             if ((Integer) one.get("withdrawType") == 0) {//支付寶提現
23                 Map<String, Object> ss = reMap;
24                 ss.remove("銀行卡戶主名稱", one.get("userName"));
25                 ss.remove("銀行", one.get("bankName"));
26                 ss.remove("銀行卡號", one.get("cardNumber"));
27                 ss.remove("所屬支行", one.get("subBranchName"));
28                 zifu.add(ss);
29             }
30             if ((Integer) one.get("withdrawType") == 1) {//銀行卡提現
31                 Map<String, Object> ss = reMap;
32                 ss.remove("支付寶帳號", one.get("withdraw"));
33                 yinhang.add(ss);
34             }
35         }
36         List<String> head = new ArrayList<>();
37         head.add("提現編號");
38         head.add("用戶ID");
39         head.add("用戶名稱");
40         head.add("用戶手機號");
41         head.add("銀行卡戶主名稱");
42         head.add("銀行");
43         head.add("所屬支行");
44         head.add("銀行卡號");
45         head.add("提現金額");
46         head.add("提現狀態");
47         head.add("支付寶帳號");
48         head.add("提現方式");
49         head.add("備註");
50         head.add("打款進度");
51         WorkbookUtil workbookUtil = new WorkbookUtil();
52         HSSFSheet sheet1 = workbookUtil.writeExcel(rows, head, "用戶總提現");
53         sheet1.setColumnWidth(5,30 * 256);
54         sheet1.setColumnWidth(6,30 * 256);
55         sheet1.setColumnWidth(7,30 * 256);
56         List<String> head1= (List<String>) ((ArrayList<String>) head).clone();
57         head1.remove(10);
58         HSSFSheet sheet2 = workbookUtil.writeExcel(yinhang, head1, "銀行卡提現");
59         sheet2.setColumnWidth(5,30 * 256);
60         sheet2.setColumnWidth(6,30 * 256);
61         sheet2.setColumnWidth(7,30 * 256);
62         List<String> head2=(List<String>) ((ArrayList<String>) head).clone();
63         head2.remove(4);
64         head2.remove(4);
65         head2.remove(4);
66         head2.remove(4);
67         HSSFSheet sheet3 = workbookUtil.writeExcel(zifu, head2, "支付寶提現");
68         // 第六步，將文件存到指定位置
69         ServletOutputStream out = response.getOutputStream();
70         try {
71             response.setContentType("application/vnd.ms-excel;charset=ISO8859-1");
72             response.setHeader("Content-Disposition", "attachment;filename=" + new String("用戶提現".getBytes("UTF-8"), "ISO8859-1") + new SimpleDateFormat("yyyy-MM-dd->HH").format(new Date()) + ".xls");
73             workbookUtil.getWorkbook().write(out);
74         } catch (Exception e) {
75             e.printStackTrace();
76         } finally {
77             out.close();
78         }
79         return;

　　使用的方法片斷。記錄一下