Apache poi 複雜表頭匯出
阿新 • • 發佈：2018-12-19
本來公司是有一套自己的Excel匯出工具，他是基於EasyPoi，奈何整合的EasyPoi版本過低，不支援一些複雜表頭，只好用Apache poi 的這套框架來做，當然EasyPoi也是基於Apache poi 封裝的
我參考的是這篇文章
但是對於這篇博文有一些問題，自己又在上面按照自己的理解改了一下，也達到了與原博主相同的效果
修改後的程式碼如下：
public HSSFWorkbook export(List list) { // 宣告String陣列，並初始化元素（表頭名稱） //第一行表頭欄位，合併單元格時欄位跨幾列就將該欄位重複幾次 String[] excelHeader0 = { "城市名稱", "監測點", "汙染物濃度及空氣質量分指數（AQI）", "汙染物濃度及空氣質量分指數（AQI）","汙染物濃度及空氣質量分指數（AQI）", "汙染物濃度及空氣質量分指數（AQI）", "汙染物濃度及空氣質量分指數（AQI）", "汙染物濃度及空氣質量分指數（AQI）","汙染物濃度及空氣質量分指數（AQI）", "汙染物濃度及空氣質量分指數（AQI）", "汙染物濃度及空氣質量分指數（AQI）", "汙染物濃度及空氣質量分指數（AQI）","汙染物濃度及空氣質量分指數（AQI）", "汙染物濃度及空氣質量分指數（AQI）", "空氣質量指數（AQI）", "首要汙染物", "空氣質量指數級別","空氣質量指數類別", "空氣質量指數類別" }; // “0,2,0,0” ===> “起始行，截止行，起始列，截止列” String[] headnum0 = { "0,2,0,0", //第0列跨3行 "0,2,1,1", //第1列跨3行 "0,0,2,13", //第2-13列跨1行 "0,2,14,14",//第14列跨3行 "0,2,15,15",//第15列跨3行 "0,2,16,16",//第16列跨3行 "0,1,17,18" //第17-18列跨2行 }; //第二行表頭欄位，其中的空的雙引號是為了補全表格邊框 String[] excelHeader1 = { "二氧化硫（SO₂）24小時平均", "二氧化硫（SO₂）24小時平均", "二氧化氮（NO₂）24小時平均", "二氧化氮（NO₂）24小時平均", "顆粒物（粒徑小於等於10μm）24小時平均","顆粒物（粒徑小於等於10μm）24小時平均", "一氧化碳（CO）24小時平均", "一氧化碳（CO）24小時平均", "臭氧（O₃）最大8小時平均", "臭氧（O₃）最大8小時平均", "顆粒物（粒徑小於等於2.5μm）24小時平均", "顆粒物（粒徑小於等於2.5μm）24小時平均" }; // 合併單元格 String[] headnum1 = { "1,1,2,3", //第2-3列跨第1行 "1,1,4,5", //第4-5列跨第1行 "1,1,6,7", "1,1,8,9", "1,1,10,11", "1,1,12,13" }; System.out.println(headnum1.length); //第三行表頭欄位 String[] excelHeader2 = { "濃度/（μg/m3）", "分指數", "濃度/（μg/m3）", "分指數", "濃度/（μg/m3）", "分指數", "濃度/（μg/m3）", "分指數", "濃度/（μg/m3）", "分指數", "濃度/（μg/m3）", "分指數", "類別", "顏色" }; String[] headnum2 = { "2,2,2,2", //第2列跨第2行 "2,2,3,3", "2,2,4,4", "2,2,5,5", "2,2,6,6", "2,2,7,7", "2,2,8,8", "2,2,9,9", "2,2,10,10", "2,2,11,11", "2,2,12,12", "2,2,13,13", "2,2,17,17", "2,2,18,18" }; // 宣告一個工作簿 HSSFWorkbook wb = new HSSFWorkbook(); // 生成一個表格 HSSFSheet sheet = wb.createSheet("競品收集彙總報表2"); // 生成一種樣式style HSSFCellStyle style = wb.createCellStyle(); // 設定樣式 style.setFillForegroundColor(HSSFColor.SKY_BLUE.index); style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); style.setBorderBottom(HSSFCellStyle.BORDER_THIN); style.setBorderLeft(HSSFCellStyle.BORDER_THIN); style.setBorderRight(HSSFCellStyle.BORDER_THIN); style.setBorderTop(HSSFCellStyle.BORDER_THIN); style.setAlignment(HSSFCellStyle.ALIGN_CENTER); style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 生成一種字型 HSSFFont font = wb.createFont(); // 設定字型 font.setFontName("微軟雅黑"); // 設定字型大小 font.setFontHeightInPoints((short) 12); // 字型加粗 font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); // 在樣式中引用這種字型 style.setFont(font); // 生成並設定另一個樣式style2 HSSFCellStyle style2 = wb.createCellStyle(); style2.setFillForegroundColor(HSSFColor.LIGHT_YELLOW.index); style2.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); style2.setBorderBottom(HSSFCellStyle.BORDER_THIN); style2.setBorderLeft(HSSFCellStyle.BORDER_THIN); style2.setBorderRight(HSSFCellStyle.BORDER_THIN); style2.setBorderTop(HSSFCellStyle.BORDER_THIN); style2.setAlignment(HSSFCellStyle.ALIGN_CENTER); style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 生成另一種字型2 HSSFFont font2 = wb.createFont(); // 設定字型 font2.setFontName("微軟雅黑"); // 設定字型大小 font2.setFontHeightInPoints((short) 12); // 字型加粗 // font2.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); // 在樣式2中引用這種字型 style2.setFont(font2); // 生成表格的第0行表頭 HSSFRow row = sheet.createRow(0); for (int i = 0; i < excelHeader0.length; i++) { HSSFCell cell = row.createCell(i); cell.setCellValue(excelHeader0[i]); cell.setCellStyle(style); sheet.autoSizeColumn(i, true);// 根據欄位長度自動調整列的寬度 } // 動態合併單元格 for (int i = 0; i < headnum0.length; i++) { sheet.autoSizeColumn(i, true); String[] temp = headnum0[i].split(","); Integer startrow = Integer.parseInt(temp[0]); Integer overrow = Integer.parseInt(temp[1]); Integer startcol = Integer.parseInt(temp[2]); Integer overcol = Integer.parseInt(temp[3]); sheet.addMergedRegion(new CellRangeAddress(startrow, overrow, startcol, overcol)); } // 第二行表頭 row = sheet.createRow(1); for (int i = 0; i < excelHeader1.length; i++) { HSSFCell cell = row.createCell(i+2); cell.setCellValue(excelHeader1[i]); cell.setCellStyle(style); sheet.autoSizeColumn(i+2, true);// 自動調整寬度 } // 動態合併單元格 for (int i = 0; i < headnum1.length; i++) { sheet.autoSizeColumn(i, true); String[] temp = headnum1[i].split(","); Integer startrow = Integer.parseInt(temp[0]); Integer overrow = Integer.parseInt(temp[1]); Integer startcol = Integer.parseInt(temp[2]); Integer overcol = Integer.parseInt(temp[3]); sheet.addMergedRegion(new CellRangeAddress(startrow, overrow, startcol, overcol)); } // 第三行表頭 row = sheet.createRow(2); for (int i = 0; i < excelHeader2.length; i++) { if(i>=12){ HSSFCell cell = row.createCell(i + 2 + 3); cell.setCellValue(excelHeader2[i]); cell.setCellStyle(style); sheet.autoSizeColumn(i + 2 + 3, true);// 自動調整寬度 }else { HSSFCell cell = row.createCell(i + 2); cell.setCellValue(excelHeader2[i]); cell.setCellStyle(style); sheet.autoSizeColumn(i + 2, true);// 自動調整寬度 } } // 動態合併單元格 for (int i = 0; i < headnum2.length; i++) { sheet.autoSizeColumn(i, true); String[] temp = headnum2[i].split(","); Integer startrow = Integer.parseInt(temp[0]); Integer overrow = Integer.parseInt(temp[1]); Integer startcol = Integer.parseInt(temp[2]); Integer overcol = Integer.parseInt(temp[3]); sheet.addMergedRegion(new CellRangeAddress(startrow, overrow, startcol, overcol)); } //這個至此只是輸出了表頭，對於表格內容應當遍歷list，迴圈填充每一個單元格 return wb; }
呼叫這個方法
protected <T> void doExportXls(HttpServletResponse response, HttpServletRequest request, List<TsReportVo> dataSet, Class<?> pojoClass, String title) { response.setContentType("application/vnd.ms-excel"); ServletOutputStream fOut = null; try { workbookname = new String(title.getBytes("UTF-8"), "ISO8859-1"); response.setHeader("Content-Disposition", "attachment;filename=" + workbookname + ".xls"); } /** Workbook workbook = new HSSFWorkbook(); //如果沒有sheet匯出來的表格內容異常 Sheet sheet = workbook.createSheet("new sheet"); // Create a row and put some cells in it. Rows are 0 based. Row row = sheet.createRow(0); // Create a cell and put a value in it. Cell cell = row.createCell(0); cell.setCellValue("我是123"); Cell cell2 = row.createCell(9); cell2.setCellValue("我是row.createCell(9)建立，9代表這一行第9個單元格，從0開始"); fOut = response.getOutputStream(); workbook.write(fOut); **/ ExportUtil exportUtil = new ExportUtil(); HSSFWorkbook wb = exportUtil.export(dataSet);//這一句呼叫我們上面寫的方法 wb.write(fOut); } catch (Exception var15) { var15.printStackTrace(); throw new Exception("匯出失敗！"); } finally { try { fOut.flush(); fOut.close(); } catch (IOException var14) { var14.printStackTrace(); } } }
上面一一共渲染了三個表頭，我們分解一下
第一個表頭
第一二個表頭
可以看到這個表頭的表格中的字比較擁擠，主要是因為這個方法
https://poi.apache.org/apidocs/dev/org/apache/poi/ss/usermodel/Sheet.html#autoSizeColumn autoSizeColumn void autoSizeColumn（int column） 調整列寬以適合內容。 在大型工作表上，此過程可能相對較慢，因此通常只應在處理結束時每列呼叫一次。 您可以指定是否應考慮或忽略合併單元格的內容。預設是忽略合併的單元格。 引數： column - 列索引
autoSizeColumn void autoSizeColumn（int column， boolean useMergedCells） 調整列寬以適合內容。 在大型工作表上，此過程可能相對較慢，因此通常只應在處理結束時每列呼叫一次。 您可以指定是否應考慮或忽略合併單元格的內容。預設是忽略合併的單元格。 引數： column - 列索引 useMergedCells - 在計算列的寬度時是否使用合併單元格的內容
需要注意的是要理解Excel的表格資料的渲染是從左往右，從上往下，逐個單元格渲染的
單個單元格
Workbook workbook = new HSSFWorkbook(); //如果沒有sheet匯出來的表格內容異常 Sheet sheet = workbook.createSheet("new sheet"); // Create a row and put some cells in it. Rows are 0 based. Row row = sheet.createRow(0); // Create a cell and put a value in it. Cell cell = row.createCell(0); cell.setCellValue("我是123"); Cell cell2 = row.createCell(9); cell2.setCellValue("我是row.createCell(9)建立，9代表這一行第9個單元格，從0開始"); fOut = response.getOutputStream(); workbook.write(fOut);
最後貼上我實際寫的程式碼
@RequestMapping(params = "exportExcel2")
public void ExportExcel2(TsCGCReportVo vo, HttpServletRequest request, HttpServletResponse response){
List<TsCGCReportVo> collection = tsCompGoodsCollectionReportService.findGoodsCollection2(vo, null);
this.doExportXls(response, request, collection, TsCGCReportVo.class, "競品收集彙總表");
}
protected <T> void doExportXls(HttpServletResponse response, HttpServletRequest request, List<TsCGCReportVo> dataSet, Class<?> pojoClass, String title) {
response.setContentType("application/vnd.ms-excel");
ServletOutputStream fOut = null;
try {
String workbookname;
if (BrowserUtils.isIE(request)) {
response.reset();
response.setHeader("Cache-Control", "private");
response.setHeader("Pragma", "private");
response.setContentType("application/vnd.ms-excel;charset=UTF-8");
response.setHeader("Content-Type", "application/force-download");
workbookname = URLEncoder.encode(title + ".xls", "UTF-8");
response.setHeader("Content-disposition", "attachment;filename=" + workbookname);
} else {
workbookname = new String(title.getBytes("UTF-8"), "ISO8859-1");
response.setHeader("Content-Disposition", "attachment;filename=" + workbookname + ".xls");
}
ExportUtil exportUtil = new ExportUtil();
HSSFWorkbook wb = exportUtil.exportGoods(dataSet);
wb.write(fOut);
} catch (Exception var15) {
var15.printStackTrace();
throw new BusinessException("匯出失敗！");
} finally {
try {
fOut.flush();
fOut.close();
} catch (IOException var14) {
var14.printStackTrace();
}
}
}
}
public class ExportUtil {
public HSSFWorkbook exportGoods(List<TsCGCReportVo> list) {
//int titleRow = 6;//表頭標題及副標題佔6行
//int tableBody = titleRow+1;//表頭開始
// 宣告String陣列，並初始化元素（表頭名稱）
//第一行表頭欄位，合併單元格時欄位跨幾列就將該欄位重複幾次
String[] excelHeader0 = {
"組織",
"職位",
"姓名",
"終端編碼",
"終端名稱",
"終端地址",
"拜訪時間",
"競品編碼",
"競品名稱",
"當月銷量",
"競品渠道促銷","競品渠道促銷","競品渠道促銷","競品渠道促銷","競品渠道促銷",
"競品消費者促銷","競品消費者促銷","競品消費者促銷"
};//length=12
// “0,2,0,0” ===> “起始行，截止行，起始列，截止列”
String[] headnum0 = {
"7,9,0,0",
"7,9,1,1",
"7,9,2,2",
"7,9,3,3",
"7,9,4,4",
"7,9,5,5",
"7,9,6,6",
"7,9,7,7",
"7,9,8,8",
"7,9,9,9",
"7,7,10,14",
"7,7,15,17"
};
//第二行表頭欄位，其中的空的雙引號是為了補全表格邊框
String[] excelHeader1 = {
"渠道促銷",
"陳列獎勵","陳列獎勵",
"促銷效果打分",
"文字描述",
"消費者活動",
"促銷效果打分",
"文字描述"
};
// 合併單元格
String[] headnum1 = {
"8,9,10,10",
"8,8,11,12",
"8,9,13,13",
"8,9,14,14",
"8,9,15,15",
"8,9,16,16",
"8,9,17,17"
};
System.out.println(headnum1.length);
//第三行表頭欄位
String[] excelHeader2 = {
"天",
"瓶"
};
String[] headnum2 = {
"9,9,11,11",
"9,9,12,12",
};
// 宣告一個工作簿
HSSFWorkbook wb = new HSSFWorkbook();
// 生成一個表格
HSSFSheet sheet = wb.createSheet("競品收集彙總報表2");
// 生成一種樣式style
HSSFCellStyle style = wb.createCellStyle();
// 設定樣式
style.setFillForegroundColor(HSSFColor.SKY_BLUE.index);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
// 生成一種字型
HSSFFont font = wb.createFont();
// 設定字型
font.setFontName("微軟雅黑");
// 設定字型大小
font.setFontHeightInPoints((short) 12);
// 在樣式中引用這種字型
style.setFont(font);
// 生成標題樣式style1
HSSFCellStyle style1 = wb.createCellStyle();
// 設定樣式
style1.setAlignment(HSSFCellStyle.ALIGN_CENTER);
style1.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
// 生成標題字型1
HSSFFont font1 = wb.createFont();
// 設定字型
font1.setFontName("微軟雅黑");
// 設定字型大小
font1.setFontHeightInPoints((short) 25);
// 字型加粗
font1.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
// 在樣式中引用這種字型
style1.setFont(font1);
HSSFRow titleRow = sheet.createRow(0);
HSSFCell titleCell = titleRow.createCell(0);
titleCell.setCellValue("競品收集報表");
titleCell.setCellStyle(style1);
sheet.autoSizeColumn(0, true);
sheet.addMergedRegion(new CellRangeAddress(0, 4, 0, 17));
// 生成標題樣式style2
HSSFCellStyle style2 = wb.createCellStyle();
// 設定樣式
style2.setAlignment(HSSFCellStyle.ALIGN_CENTER);
style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
HSSFRow titleRow2 = sheet.createRow(5);
HSSFCell titleCell2 = titleRow2.createCell(14);
titleCell2.setCellValue("匯出人：超級管理員");
titleCell2.setCellStyle(style2);
sheet.autoSizeColumn(14, true);
sheet.addMergedRegion(new CellRangeAddress(5, 6, 14, 17));
HSSFRow row = sheet.createRow(7);
for (int i = 0; i < excelHeader0.length; i++) {
HSSFCell cell = row.createCell(i);
cell.setCellValue(excelHeader0[i]);
cell.setCellStyle(style);
sheet.autoSizeColumn(i, true);// 根據欄位長度自動調整列的寬度
}
// 動態合併單元格
for (int i = 0; i < headnum0.length; i++) {
sheet.autoSizeColumn(i, true);
String[] temp = headnum0[i].split(",");
Integer startrow = Integer.parseInt(temp[0]);
Integer overrow = Integer.parseInt(temp[1]);
Integer startcol = Integer.parseInt(temp[2]);
Integer overcol = Integer.parseInt(temp[3]);
sheet.addMergedRegion(new CellRangeAddress(startrow, overrow, startcol, overcol));
}
// 第二行表頭
row = sheet.createRow(8);
for (int i = 0; i < excelHeader1.length; i++) {
HSSFCell cell = row.createCell(i+10);
cell.setCellValue(excelHeader1[i]);
cell.setCellStyle(style);
sheet.autoSizeColumn(i+10, true);// 自動調整寬度
}
// 動態合併單元格
for (int i = 0; i < headnum1.length; i++) {
sheet.autoSizeColumn(i, true);
String[] temp = headnum1[i].split(",");
Integer startrow = Integer.parseInt(temp[0]);
Integer overrow = Integer.parseInt(temp[1]);
Integer startcol = Integer.parseInt(temp[2]);
Integer overcol = Integer.parseInt(temp[3]);
sheet.addMergedRegion(new CellRangeAddress(startrow, overrow, startcol, overcol));
}
// 第三行表頭
row = sheet.createRow(9);
for (int i = 0; i < excelHeader2.length; i++) {
HSSFCell cell = row.createCell(i + 11);
cell.setCellValue(excelHeader2[i]);
cell.setCellStyle(style);
sheet.autoSizeColumn(i + 11, true);// 自動調整寬度
}
// 動態合併單元格
for (int i = 0; i < headnum2.length; i++) {
sheet.autoSizeColumn(i, true);
String[] temp = headnum2[i].split(",");
Integer startrow = Integer.parseInt(temp[0]);
Integer overrow = Integer.parseInt(temp[1]);
Integer startcol = Integer.parseInt(temp[2]);
Integer overcol = Integer.parseInt(temp[3]);
sheet.addMergedRegion(new CellRangeAddress(startrow, overrow, startcol, overcol));
}
for(int i =0;i<list.size();i++){
TsCGCReportVo vo = list.get(i);
row = sheet.createRow(i+10);
HSSFCell cell0 = row.createCell(0);
cell0.setCellValue(vo.getOrgName());
HSSFCell cell1 = row.createCell(1);
cell1.setCellValue(vo.getPositionName());
HSSFCell cell2 = row.createCell(2);
cell2.setCellValue(vo.getUserName());
HSSFCell cell3 = row.createCell(3);
cell3.setCellValue(vo.getTerminalCode());
HSSFCell cell4 = row.createCell(4);
cell4.setCellValue(vo.getTerminalName());
HSSFCell cell5 = row.createCell(5);
cell5.setCellValue(vo.getTerminalAddress());
HSSFCell cell6 = row.createCell(6);
cell6.setCellValue(vo.getCreateDate());
HSSFCell cell7 = row.createCell(7);
cell7.setCellValue(vo.getComGoodsName());
HSSFCell cell8 = row.createCell(8);
cell8.setCellValue(vo.getTheMonthSale());
HSSFCell cell9 = row.createCell(9);
cell9.setCellValue(vo.getChannelGiftName());
HSSFCell cell10 = row.createCell(10);
cell10.setCellValue(vo.getColumnDay());
HSSFCell cell11 = row.createCell(11);
cell11.setCellValue(vo.getColumnReward());
HSSFCell cell12 = row.createCell(12);
cell12.setCellValue(vo.getChannelAnalPromEff());
HSSFCell cell13 = row.createCell(13);
cell13.setCellValue(vo.getChannelSaleRemark());
HSSFCell cell14 = row.createCell(14);
cell14.setCellValue(vo.getConsumerActivitiesName());
HSSFCell cell15 = row.createCell(15);
cell15.setCellValue(vo.getConsumerActivitiesName());
HSSFCell cell16 = row.createCell(16);
cell16.setCellValue(vo.getConAnalPromEff());
HSSFCell cell17 = row.createCell(17);
cell17.setCellValue(vo.getConSaleRemark());
}
return wb;
}
}