怎么实现 从网页导出xsl文件 就是下载从数据库读出的数据 然后生成xsl文件 在下载到客户端
------解决方案--------------------
response.setHeader("Content-disposition", "attachment;filename="test.xls");
response.setContentType("application/msexcel");
OutputStream os = response.getOutputStream();
使用POI生成xls文件，生成时使用到Workbook wb = new HSSFWorkbook();
最后wb.write(os);即可。
附上我在项目中使用的代码：
- Java code
public static int createSheet(HttpServletResponse response,Form1324 form)throws Exception { response.setHeader("Content-disposition", "attachment; filename="+form.getGate_id()+"_"+form.getDate_begin()+"_"+form.getDate_end()+".xls"); response.setContentType("application/msexcel"); OutputStream os = response.getOutputStream(); HSSFWorkbook wb = new HSSFWorkbook(); Sheet sheet = wb.createSheet("T中行"); Row row = null; Cell cell = null; String[] refundLogs = form.getRefund_logs(); String[] str = null; int len = refundLogs.length; int i = 0,j=0,k=0; int pageNo = (len -1)/10 + 1; int rndNum = 0; String cardNo = ""; String txnDt = ""; String txnAmt = ""; String refAmt = ""; String authCd = ""; String bk_date = ""; String sysSeqId = ""; String sysDt = ""; String orgData = ""; int pageFrom = 0; double totalTxnAmt = 0.00; double totalRefAmt = 0.00; double subAmt = 0.00; DecimalFormat format = new DecimalFormat("0.00"); CellStyle cs1 = wb.createCellStyle(); Font font1 = wb.createFont(); font1.setFontName("宋体"); font1.setFontHeightInPoints((short)20); font1.setBoldweight(Font.BOLDWEIGHT_BOLD); cs1.setFont(font1); cs1.setAlignment(CellStyle.ALIGN_CENTER); CellStyle cs2 = wb.createCellStyle(); Font font2 = wb.createFont(); font2.setFontName("宋体"); font2.setFontHeightInPoints((short)10); cs2.setFont(font2); cs2.setAlignment(CellStyle.ALIGN_CENTER); CellStyle cs3 = wb.createCellStyle(); cs3.setFont(font2); cs3.setBorderTop(HSSFCellStyle.BORDER_THIN); cs3.setBorderBottom(HSSFCellStyle.BORDER_THIN); cs3.setBorderLeft(HSSFCellStyle.BORDER_THIN); cs3.setBorderRight(HSSFCellStyle.BORDER_THIN); cs3.setAlignment(CellStyle.ALIGN_CENTER); cs3.setVerticalAlignment(CellStyle.VERTICAL_CENTER); CellStyle cs4 = wb.createCellStyle(); Font font4 = wb.createFont(); font4.setFontHeightInPoints((short)14); font4.setFontName("宋体"); font4.setBoldweight(Font.BOLDWEIGHT_BOLD); cs4.setFont(font4); cs4.setVerticalAlignment(CellStyle.VERTICAL_CENTER); for(j=0;j<pageNo;j++){ totalTxnAmt = 0; totalRefAmt = 0; pageFrom = j*37; if(j==(pageNo-1)){ if(len % 10 == 0 ){ rndNum = 10; }else{ rndNum = len % 10; } }else{ rndNum = 10; } row = sheet.createRow(pageFrom); row.setHeightInPoints((short)40); cell = row.createCell(0); cell.setCellStyle(cs1); cell.setCellValue("中国银行人民币卡退款申请表"); sheet.addMergedRegion(new CellRangeAddress(pageFrom, pageFrom, 0, 6)); row = sheet.createRow(pageFrom+1); row.setHeightInPoints((short)20); cell = row.createCell(0); cell.setCellStyle(cs2); cell.setCellValue("此申请为第_____次发送 上次发送日期：____________."); sheet.addMergedRegion(new CellRangeAddress(pageFrom+1, pageFrom+1, 0, 6)); row = sheet.createRow(pageFrom+2); cell = row.createCell(0); cell.setCellValue("TO：中国银行银行卡部"); sheet.addMergedRegion(new CellRangeAddress(pageFrom+2, pageFrom+2, 0, 2)); cell = row.createCell(3); cell.setCellValue("FROM： 汇付天下有限公司"); sheet.addMergedRegion(new CellRangeAddress(pageFrom+2, pageFrom+2, 3, 6)); row = sheet.createRow(pageFrom+3); cell = row.createCell(0); cell.setCellValue("电话：63219234"); sheet.addMergedRegion(new CellRangeAddress(pageFrom+3, pageFrom+3, 0, 2)); cell = row.createCell(3); cell.setCellValue("*商户编号：104310148160006"); sheet.addMergedRegion(new CellRangeAddress(pageFrom+3, pageFrom+3, 3, 6)); row = sheet.createRow(pageFrom+4); cell = row.createCell(0); cell.setCellValue("传真：63291037/63291049"); sheet.addMergedRegion(new CellRangeAddress(pageFrom+4, pageFrom+4, 0, 2)); cell = row.createCell(3); cell.setCellValue("电话：021-61613999*6209 传真：021-61613099"); sheet.addMergedRegion(new CellRangeAddress(pageFrom+4, pageFrom+4, 3, 6)); row = sheet.createRow(pageFrom+5); row.setHeightInPoints((short)30); cell = row.createCell(0); cell = row.createCell(0); cell.setCellStyle(cs3); cell.setCellValue(""); cell = row.createCell(1); cell.setCellStyle(cs3); cell.setCellValue("*卡号"); cell = row.createCell(2); cell.setCellStyle(cs3); cell.setCellValue("*原交易日期"); cell = row.createCell(3); cell.setCellStyle(cs3); cell.setCellValue("*原交易金额"); cell = row.createCell(4); cell.setCellStyle(cs3); cell.setCellValue("*原交易授权号"); cell = row.createCell(5); cell.setCellStyle(cs3); cell.setCellValue("*退款金额"); cell = row.createCell(6); cell.setCellStyle(cs3); cell.setCellValue("◇原因"); for(i=0;i<rndNum;i++){ str = refundLogs[j*10+i].split("\\|"); cardNo = str[1]; bk_date = str[12]; sysSeqId = str[10]; sysDt = str[11]; if(!"".equals(sysDt)) orgData = sysDt; if(!"".equals(sysSeqId)) orgData = orgData + sysSeqId; if(!"".equals(bk_date)) orgData = orgData + bk_date; txnDt = orgData.substring(0,8); txnAmt = str[2]; refAmt = str[3]; authCd = str[9]; row = sheet.createRow(pageFrom+6+i); row.setHeightInPoints((short)30); cell = row.createCell(0); cell.setCellStyle(cs3); cell.setCellValue(i+1); cell = row.createCell(1); cell.setCellStyle(cs3); cell.setCellValue(cardNo); cell = row.createCell(2); cell.setCellStyle(cs3); cell.setCellValue(txnDt); cell = row.createCell(3); cell.setCellStyle(cs3); cell.setCellValue(txnAmt); cell = row.createCell(4); cell.setCellStyle(cs3); cell.setCellValue(authCd); cell = row.createCell(5); cell.setCellStyle(cs3); cell.setCellValue(refAmt); cell = row.createCell(6); cell.setCellStyle(cs3); cell.setCellValue("持卡人退货"); totalTxnAmt += Double.parseDouble(txnAmt); totalRefAmt += Double.parseDouble(refAmt); } //最后一页补充 if(j==((pageNo-1))){ rndNum = 10-rndNum; for(k=0;k<rndNum;k++){ row = sheet.createRow(pageFrom+6+i+k); row.setHeightInPoints((short)30); row.createCell(0).setCellStyle(cs3); row.createCell(1).setCellStyle(cs3); row.createCell(2).setCellStyle(cs3); row.createCell(3).setCellStyle(cs3); row.createCell(4).setCellStyle(cs3); row.createCell(5).setCellStyle(cs3); row.createCell(6).setCellStyle(cs3); } } row = sheet.createRow(pageFrom+16); row.setHeightInPoints((short)30); cell = row.createCell(0); cell.setCellStyle(cs3); cell.setCellValue("合计"); cell = row.createCell(1); cell.setCellStyle(cs3); cell.setCellValue("退款总金额:"); row.createCell(2).setCellStyle(cs3); row.createCell(3).setCellStyle(cs3); row.createCell(4).setCellStyle(cs3); sheet.addMergedRegion(new CellRangeAddress(pageFrom+16, pageFrom+16, 1, 4)); cell = row.createCell(5); cell.setCellStyle(cs3); cell.setCellValue(format.format(totalRefAmt)); row.createCell(6).setCellStyle(cs3); sheet.addMergedRegion(new CellRangeAddress(pageFrom+16, pageFrom+16, 5, 6)); row = sheet.createRow(pageFrom+17); cell = row.createCell(0); cs2.setWrapText(true); cell.setCellStyle(cs2); cell.setCellValue("◇原因： A.持卡人退货 B.刷卡后付现金 C.银行重复清算 D.收银重复刷卡 E.POS机误操作 F.有查询编号 G.其他"); sheet.addMergedRegion(new CellRangeAddress(pageFrom+17, pageFrom+18, 0, 6)); row = sheet.createRow(pageFrom+19); cell = row.createCell(0); cell.setCellStyle(cs4); cell.setCellValue("其中加*号的项目为必填项"); row = sheet.createRow(pageFrom+20); cell = row.createCell(0); cell.setCellStyle(cs4); cell.setCellValue("公司财务章或公章:"); sheet.addMergedRegion(new CellRangeAddress(pageFrom+20, pageFrom+26, 0, 6)); row = sheet.createRow(pageFrom+27); cell = row.createCell(0); cell.setCellValue("备注：1.上述退款金额将从信用卡交易中抵扣，轧差后净额结算。"); row = sheet.createRow(pageFrom+28); cell = row.createCell(0); cell.setCellValue(" 2.每份退款申请表的退款笔数请勿超过10笔，如有超过请换页，退款总金额请单页统计。"); subAmt += totalRefAmt; } row = sheet.createRow(29); cell = row.createCell(0); cell.setCellStyle(cs4); cell.setCellValue("账号：455959692203"); sheet.addMergedRegion(new CellRangeAddress(29, 29, 0, 6)); row = sheet.createRow(30); cell = row.createCell(0); cell.setCellStyle(cs4); cell.setCellValue("一共"+pageNo+"张退款表，共"+len+"笔"); sheet.addMergedRegion(new CellRangeAddress(30, 30, 0, 2)); row = sheet.createRow(31); cell = row.createCell(0); cell.setCellStyle(cs4); cell.setCellValue("退款总金额："+format.format(subAmt)+"元；扣除手续费后金额："+format.format(subAmt*0.008)+"元"); sheet.addMergedRegion(new CellRangeAddress(31, 31, 0, 6)); sheet.setColumnWidth(0, 4*256); sheet.setColumnWidth(1, 20*256); sheet.setColumnWidth(2, 13*256); sheet.setColumnWidth(3, 13*256); sheet.setColumnWidth(4, 13*256); sheet.setColumnWidth(5, 12*256); sheet.setColumnWidth(6, 12*256); wb.write(os); return 0; }