Java poi導出Excel下載到客戶端

Java poi 導出Excel並下載到客戶端，具體內容如下

Maven配置，包含了其他文件格式的依賴，就全貼出來了

<dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-excelant</artifactId> <version>3.12</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-scratchpad</artifactId> <version>3.12</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.8</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml-schemas</artifactId> <version>3.8</version> </dependency>

Service層

@Override public void export(Long sblsh, String excelName, OutputStream out) { try { // 第一步，創建一個webbook，對應一個Excel文件HSSFWorkbook wb = new HSSFWorkbook(); //生成一個表格HSSFSheet sheet = wb.createSheet(excelName); // 第三步，在sheet中添加表頭第0行HSSFRow row = sheet.createRow(0); // 第四步，創建單元格，並設置值表頭設置表頭居中HSSFCellStyle style = wb.createCellStyle(); style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 創建一個居中格式HSSFCell cell = row.createCell(0); cell.setCellStyle(style); Byte kjzz = qyjbxxMapper.getKjzz(sblsh); List<A> record = this.selectBySblsh(sblsh); this.insertData(wb, sheet, row, record, out); } } catch (Exception e) { logger.info(e.getMessage()); } } /** * 導入數據到表格中* @param wb execl文件* @param sheet 表格* @param row 表格行* @param record 要導出的數據* @param out 輸出流*/ private void insertData(HSSFWorkbook wb,HSSFSheet sheet,HSSFRow row,List<A> record, OutputStream out){ try { row = sheet.createRow(1); for(int i=0;i<title.length;i++){ row.createCell(i).setCellValue(title[i]); } for(int i=0;i<record.size();i++){ row = sheet.createRow(i+2); A data = record.get(i); row.createCell(0).setCellValue(data.getHc()); row.createCell(1).setCellValue(data.getXm()); BigDecimal je = data.getJe(); if(je!=null){ row.createCell(2).setCellValue(je.doubleValue()); } } //合併單元格，前面2位代表開頭結尾行，後面2位代表開頭結尾列CellRangeAddress region = new CellRangeAddress(0,0,0,title.length-1); sheet.addMergedRegion(region); wb.write(out); out.flush(); out.close(); wb.close(); } catch (Exception e) { logger.info(e.getMessage()); } }

Controller

 @RequestMapping("/export") public void export(Long sblsh, HttpServletRequest request, HttpServletResponse response){ response.setContentType("octets/stream"); String excelName = "文件名"; try { response.addHeader("Content-Disposition", "attachment;filename="+new String(excelName.getBytes("gb2312"), "ISO8859-1" )+".xls"); OutputStream out = response.getOutputStream(); aService.export(sblsh,excelName ,out); } catch (Exception e) { e.printStackTrace(); } }

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持武林網。