本文實(shí)例為大家分享了java導(dǎo)出包含多個(gè)sheet的Excel的具體代碼，供大家參考，具體內(nèi)容如下
要導(dǎo)出多個(gè)sheet，關(guān)鍵就是Excel導(dǎo)出的時(shí)間設(shè)定，在執(zhí)行導(dǎo)出文件之前，創(chuàng)建多個(gè)工作表
HSSFSheet sheet = workbook.createSheet(sheettitle);
這樣每創(chuàng)建一個(gè)工作表，便會(huì)生成一個(gè)新的sheet表，在最后導(dǎo)出Excel的時(shí)候一次性導(dǎo)出。
示例：
Java類：
try { HSSFWorkbook workbook = new HSSFWorkbook(); OutputStream out = response.getOutputStream(); for(int j=0;j<n;j++){ BaseResult<List<T>> teasalList = service.select(teasal); //接下來循環(huán)list放到Excel表中 if(teasalList.isSuccess()&&teasalList.getResult().size()>0){ //文件標(biāo)題 SimpleDateFormat formatter1 = new SimpleDateFormat("yyyy-MM-dd"); String nowdate = formatter1.format(new Date()); String String sheettitle = "sheet表名"; //設(shè)置表格標(biāo)題行 String oneheaders = "首行標(biāo)題" ; String dateheaders = nowdate ; String[] headers = new String[] {"列1","列2","列3","列4"}; List<Object[]> dataList = new ArrayList<Object[]>(); Object[] objs = null; for(int i =0; i<3 ; i++){ //循環(huán)每一條數(shù)據(jù) objs = new Object[headers.length]; objs[1] = "張三"; //姓名 objs[2] = "3"; //序號(hào) //數(shù)據(jù)添加到excel表格 dataList.add(objs); } //使用流將數(shù)據(jù)導(dǎo)出 //防止中文亂碼 String headStr = "attachment; filename=/"" + new String( title.getBytes("gb2312"), "ISO8859-1" ) + "/""; response.setContentType("octets/stream"); response.setContentType("APPLICATION/OCTET-STREAM"); response.setHeader("Content-Disposition", headStr); ExportExcelDownFee ex ; ex = new ExportExcelDownFee(sheettitle, oneheaders, dateheaders,headers, dataList);//沒有標(biāo)題 ex.export(workbook,out); } } workbook.write(out); //循環(huán)生成多個(gè)sheet之后在導(dǎo)出Excel out.close(); //關(guān)閉流} catch (Exception e) { e.printStackTrace(); }工具類：
public class ExportExcelDownFee { //導(dǎo)出表的列名 private String[] rowName ; //導(dǎo)出表的小標(biāo)題 private String oneheaders; //導(dǎo)出表的日期 private String dateheaders; //sheet表表名 private String sheettitle; private List<Object[]> dataList = new ArrayList<Object[]>(); HttpServletResponse response; //構(gòu)造方法2，傳入要導(dǎo)出的數(shù)據(jù) public ExportExcelDownFee( String sheettitle, String oneheaders, String dateheaders, String[] rowName,List<Object[]> dataList){ this.dataList = dataList; this.oneheaders = oneheaders; this.dateheaders = dateheaders; this.rowName = rowName; this.sheettitle = sheettitle; } /* * 導(dǎo)出數(shù)據(jù) * */ public void export(HSSFWorkbook workbook,OutputStream out) throws Exception{ try{ HSSFSheet sheet = workbook.createSheet(sheettitle); // 創(chuàng)建工作表 HSSFCellStyle columnTopStyle = this.getColumnTopStyle(workbook);//獲取列頭樣式對象 HSSFCellStyle style = this.getStyle(workbook); //單元格樣式對象 //第一行 HSSFRow rowfirstName = sheet.createRow(0); HSSFCell oneCellRowName = rowfirstName.createCell(0); //創(chuàng)建列頭對應(yīng)個(gè)數(shù)的單元格 oneCellRowName.setCellType(HSSFCell.CELL_TYPE_STRING); //設(shè)置列頭單元格的數(shù)據(jù)類型 HSSFRichTextString onetext = new HSSFRichTextString(oneheaders); oneCellRowName.setCellValue(onetext); //設(shè)置列頭單元格的值 //合并單元格CellRangeAddress構(gòu)造參數(shù)依次表示起始行，截至行，起始列， 截至列 sheet.addMergedRegion(new CellRangeAddress(0,0,0,3)); oneCellRowName.setCellStyle(columnTopStyle); //設(shè)置列頭單元格樣式 //第二行 HSSFRow rowDateName = sheet.createRow(1); HSSFCell DateCellRowName = rowDateName.createCell(3); DateCellRowName.setCellValue(dateheaders); DateCellRowName.setCellStyle(columnTopStyle); // 定義所需列數(shù) int columnNum = rowName.length; HSSFRow rowRowName = sheet.createRow(2); // 在索引2的位置創(chuàng)建行(最頂端的行開始的第二行) // 將列頭設(shè)置到sheet的單元格中 for(int n=0;n<columnNum;n++){ HSSFCell cellRowName = rowRowName.createCell(n); //創(chuàng)建列頭對應(yīng)個(gè)數(shù)的單元格 cellRowName.setCellType(HSSFCell.CELL_TYPE_STRING); //設(shè)置列頭單元格的數(shù)據(jù)類型 HSSFRichTextString text = new HSSFRichTextString(rowName[n]); cellRowName.setCellValue(text); //設(shè)置列頭單元格的值 cellRowName.setCellStyle(style); //設(shè)置列頭單元格樣式 } //將查詢出的數(shù)據(jù)設(shè)置到sheet對應(yīng)的單元格中 for(int i=0;i<dataList.size();i++){ Object[] obj = dataList.get(i);//遍歷每個(gè)對象 HSSFRow row = sheet.createRow(i+3);//創(chuàng)建所需的行數(shù)（從第二行開始寫數(shù)據(jù)） for(int j=0; j<obj.length; j++){ HSSFCell cell = null; //設(shè)置單元格的數(shù)據(jù)類型 if(j == 0){ cell = row.createCell(j,HSSFCell.CELL_TYPE_NUMERIC); cell.setCellValue(i+1); }else{ cell = row.createCell(j,HSSFCell.CELL_TYPE_STRING); if(!"".equals(obj[j]) && obj[j] != null){ cell.setCellValue(obj[j].toString()); //設(shè)置單元格的值 } } cell.setCellStyle(style); //設(shè)置單元格樣式 } } //讓列寬隨著導(dǎo)出的列長自動(dòng)適應(yīng) for (int colNum = 0; colNum < columnNum; colNum++) { int columnWidth = sheet.getColumnWidth(colNum) / 256; for (int rowNum = 0; rowNum < sheet.getLastRowNum(); rowNum++) { HSSFRow currentRow; //當(dāng)前行未被使用過 if (sheet.getRow(rowNum) == null) { currentRow = sheet.createRow(rowNum); } else { currentRow = sheet.getRow(rowNum); } if (currentRow.getCell(colNum) != null) { HSSFCell currentCell = currentRow.getCell(colNum); if (currentCell.getCellType() == HSSFCell.CELL_TYPE_STRING) { int length = 0; try { length = currentCell.getStringCellValue().getBytes().length; } catch (Exception e) { e.printStackTrace(); } if (columnWidth < length) { columnWidth = length; } } } } if(colNum == 0){ sheet.setColumnWidth(colNum, (columnWidth-2) * 256); }else{ sheet.setColumnWidth(colNum, (columnWidth+4) * 256); } } }catch(Exception e){ e.printStackTrace(); } } /* * 列頭單元格樣式 */ public HSSFCellStyle getColumnTopStyle(HSSFWorkbook workbook) { // 設(shè)置字體 HSSFFont font = workbook.createFont(); //設(shè)置字體大小 font.setFontHeightInPoints((short)11); //字體加粗 //font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); //設(shè)置字體名字 font.setFontName("宋體"); //設(shè)置樣式; HSSFCellStyle style = workbook.createCellStyle(); //在樣式用應(yīng)用設(shè)置的字體; style.setFont(font); //設(shè)置自動(dòng)換行; style.setWrapText(false); //設(shè)置水平對齊的樣式為居中對齊; style.setAlignment(HSSFCellStyle.ALIGN_CENTER); //設(shè)置垂直對齊的樣式為居中對齊; style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); return style; } /* * 列數(shù)據(jù)信息單元格樣式 */ public HSSFCellStyle getStyle(HSSFWorkbook workbook) { // 設(shè)置字體 HSSFFont font = workbook.createFont(); //設(shè)置字體名字 font.setFontName("宋體"); //設(shè)置樣式; HSSFCellStyle style = workbook.createCellStyle(); //設(shè)置底邊框; style.setBorderBottom(HSSFCellStyle.BORDER_THIN); //設(shè)置底邊框顏色; style.setBottomBorderColor(HSSFColor.BLACK.index); //設(shè)置左邊框; style.setBorderLeft(HSSFCellStyle.BORDER_THIN); //設(shè)置左邊框顏色; style.setLeftBorderColor(HSSFColor.BLACK.index); //設(shè)置右邊框; style.setBorderRight(HSSFCellStyle.BORDER_THIN); //設(shè)置右邊框顏色; style.setRightBorderColor(HSSFColor.BLACK.index); //設(shè)置頂邊框; style.setBorderTop(HSSFCellStyle.BORDER_THIN); //設(shè)置頂邊框顏色; style.setTopBorderColor(HSSFColor.BLACK.index); //在樣式用應(yīng)用設(shè)置的字體; style.setFont(font); //設(shè)置自動(dòng)換行; style.setWrapText(false); //設(shè)置水平對齊的樣式為居中對齊; style.setAlignment(HSSFCellStyle.ALIGN_CENTER); //設(shè)置垂直對齊的樣式為居中對齊; style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); return style; } }以上所述是小編給大家介紹的java導(dǎo)出包含多個(gè)sheet的Excel代碼示例詳解整合，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對VeVb武林網(wǎng)網(wǎng)站的支持！
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