1 工程所需jar包如下：
commons-codec-1.5.jar
commons-logging-1.1.jar
log4j-1.2.13.jar
junit-3.8.1.jar
poi-3.9-20121203.jar

2 Code:

/** 
 * 導出設備信息Excel 
 * @param form      和 HTTP 請求相關的表格對象 
 * @param resources 信息資源對象 
 * @param locale    本地化對象 
 * @param session   HTTP 會話對象 
 * @param request   HTTP 請求對象 
 * @param response  HTTP 響應對象 
 * @return 
 */  
public String exportExcel(DynaBean form, MessageResources resources,  
        Locale locale, HttpSession session, HttpServletRequest request,  
        HttpServletResponse response) throws Exception{  
    int iLanguage = (locale.getLanguage().indexOf("en")>=0)?0:1;  
    response.reset();  
    response.setContentType("application/vnd.ms-excel");  
    response.setHeader("Content-Disposition","attachment;filename="+java.net.URLEncoder.encode(resources.getMessage(locale, "device.details")+".xls","UTF-8"));  
    OutputStream sos = response.getOutputStream();  
    List<DeviceVO> deviceList = dao.getAllDevice();  
    HSSFWorkbook wb = new HSSFWorkbook();  
    Map<String, CellStyle> styles = createStyles(wb);  
    // 創建sheet頁  
    Sheet sheet = wb.createSheet("Sheet");  
    PrintSetup printSetup = sheet.getPrintSetup();  
    printSetup.setLandscape(true);  
    sheet.setFitToPage(true);  
    sheet.setHorizontallyCenter(true);  
    /** 
    *合並單元格的行或者列 
    */  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$F$1:$H$1"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$M$1:$P$1"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$Q$1:$S$1"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$A$1:$A$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$B$1:$B$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$C$1:$C$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$D$1:$D$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$E$1:$E$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$I$1:$I$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$J$1:$J$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$K$1:$K$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$L$1:$L$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$T$1:$T$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$U$1:$U$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$V$1:$V$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$W$1:$W$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$X$1:$X$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$Y$1:$Y$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$Z$1:$Z$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$AA$1:$AA$2"));  
    sheet.addMergedRegion(CellRangeAddress.valueOf("$AB$1:$AB$2"));  
      
  
      
    // 創建表頭  
    Row headerRow = sheet.createRow(0);  
    headerRow.setHeightInPoints(30);  
    Cell headerCell;  
      
    headerCell = headerRow.createCell(0);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.number")); //設備編號  
    headerCell.setCellStyle(styles.get("header"));  
  
    headerCell = headerRow.createCell(1);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.qrcode")); //設備二維碼  
    headerCell.setCellStyle(styles.get("header"));  
  
    headerCell = headerRow.createCell(2);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.customerbase")); //客戶群  
    headerCell.setCellStyle(styles.get("header"));  
  
    headerCell = headerRow.createCell(3);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.customertype")); //客戶類別  
    headerCell.setCellStyle(styles.get("header"));  
  
    headerCell = headerRow.createCell(4);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.customername")); //客戶名稱  
    headerCell.setCellStyle(styles.get("header"));  
  
    headerCell = headerRow.createCell(5);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.area")); //設備區域  
    headerCell.setCellStyle(styles.get("header"));  
  
    headerCell = headerRow.createCell(8);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.itemname")); //所屬項目名稱  
    headerCell.setCellStyle(styles.get("header"));  
  
    headerCell = headerRow.createCell(9);  
    headerCell.setCellValue(resources.getMessage(locale, "device.category")); //設備類別  
    headerCell.setCellStyle(styles.get("header"));  
  
    headerCell = headerRow.createCell(10);  
    headerCell.setCellValue(resources.getMessage(locale, "device.name")); //設備名稱  
    headerCell.setCellStyle(styles.get("header"));  
  
    headerCell = headerRow.createCell(11);  
    headerCell.setCellValue(resources.getMessage(locale, "device.no")); //設備信息編號  
    headerCell.setCellStyle(styles.get("header"));  
  
    headerCell = headerRow.createCell(12);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.baseinfomation")); //設備基本信息  
    headerCell.setCellStyle(styles.get("header"));  
      
    headerCell = headerRow.createCell(16);  
    headerCell.setCellValue(resources.getMessage(locale, "device.location")); //設備位置  
    headerCell.setCellStyle(styles.get("header"));  
      
    headerCell = headerRow.createCell(19);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.enabledate")); //設備啟用日期  
    headerCell.setCellStyle(styles.get("header"));  
      
    headerCell = headerRow.createCell(20);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.backendload")); //後端負載  
    headerCell.setCellStyle(styles.get("header"));  
      
    headerCell = headerRow.createCell(21);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.operationtips")); //操作提示  
    headerCell.setCellStyle(styles.get("header"));  
      
    headerCell = headerRow.createCell(22);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.maintenancepeople")); //維護責任人  
    headerCell.setCellStyle(styles.get("header"));  
      
    headerCell = headerRow.createCell(23);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.usetime")); //巡檢時間  
    headerCell.setCellStyle(styles.get("header"));  
      
    headerCell = headerRow.createCell(24);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.intervaltime")); //巡檢下臺設備時間間隔  
    headerCell.setCellStyle(styles.get("header"));  
      
    headerCell = headerRow.createCell(25);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.patrolpath")); //巡檢路徑  
    headerCell.setCellStyle(styles.get("header"));  
      
    headerCell = headerRow.createCell(26);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.enable")); //是否啟用巡檢路徑  
    headerCell.setCellStyle(styles.get("header"));  
      
    headerCell = headerRow.createCell(27);  
    headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.other")); //其他信息  
    headerCell.setCellStyle(styles.get("header"));  
      
      
    Row headerRowRegion = sheet.createRow(1);  
    headerRowRegion.setHeightInPoints(15);  
    Cell headerCellRegion;  
    headerCellRegion = headerRowRegion.createCell(5);  
    headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.province")); //省份  
    headerCellRegion.setCellStyle(styles.get("header"));  
      
    headerCellRegion = headerRowRegion.createCell(6);  
    headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.region")); //市  
    headerCellRegion.setCellStyle(styles.get("header"));  
      
    headerCellRegion = headerRowRegion.createCell(7);  
    headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.county")); //縣/區  
    headerCellRegion.setCellStyle(styles.get("header"));  
      
    headerCellRegion = headerRowRegion.createCell(12);  
    headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.brand")); //品牌  
    headerCellRegion.setCellStyle(styles.get("header"));  
      
    headerCellRegion = headerRowRegion.createCell(13);  
    headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.model")); //型號  
    headerCellRegion.setCellStyle(styles.get("header"));  
      
    headerCellRegion = headerRowRegion.createCell(14);  
    headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.capacity")); //容量  
    headerCellRegion.setCellStyle(styles.get("header"));  
      
    headerCellRegion = headerRowRegion.createCell(15);  
    headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.systemtype")); //系統類型  
    headerCellRegion.setCellStyle(styles.get("header"));  
      
    headerCellRegion = headerRowRegion.createCell(16);  
    headerCellRegion.setCellValue(resources.getMessage(locale, "device.build")); //樓號  
    headerCellRegion.setCellStyle(styles.get("header"));  
      
    headerCellRegion = headerRowRegion.createCell(17);  
    headerCellRegion.setCellValue(resources.getMessage(locale, "device.floor")); //樓層  
    headerCellRegion.setCellStyle(styles.get("header"));  
      
    headerCellRegion = headerRowRegion.createCell(18);  
    headerCellRegion.setCellValue(resources.getMessage(locale, "device.room")); //房間號  
    headerCellRegion.setCellStyle(styles.get("header"));  
      
    for(int i=0;i<deviceList.size();i++){  
        DeviceVO device = deviceList.get(i);  
        Cell rowCell;  
        Row cellRow = sheet.createRow(i + 2);  
          
        rowCell = cellRow.createCell(0);  
        rowCell.setCellValue(device.getDeviceId());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(1);  
        rowCell.setCellValue(device.getQrcode());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(2);  
        //判斷是否是中文  
        if(iLanguage==1){  
            rowCell.setCellValue(device.getItemId().getCustomerBase().substring(device.getItemId().getCustomerBase().indexOf(":")+1,device.getItemId().getCustomerBase().length()));  
        }else if(iLanguage==0){ //判斷是否是英文  
            rowCell.setCellValue(device.getItemId().getCustomerBase().substring(0,device.getItemId().getCustomerBase().indexOf(":")));  
        }  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(3);  
        //判斷是否是中文  
        if(iLanguage==1){  
            rowCell.setCellValue(device.getItemId().getCustomerType().substring(device.getItemId().getCustomerType().indexOf(":")+1,device.getItemId().getCustomerType().length()));  
        }else if(iLanguage==0){ //判斷是否是英文  
            rowCell.setCellValue(device.getItemId().getCustomerType().substring(0,device.getItemId().getCustomerType().indexOf(":")));  
        }  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(4);  
        rowCell.setCellValue(device.getItemId().getCustomerName());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(5);  
        rowCell.setCellValue(device.getItemId().getProvince());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(6);  
        rowCell.setCellValue(device.getItemId().getCity());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(7);  
        rowCell.setCellValue(device.getItemId().getCounty());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(8);  
        //判斷是否是中文  
        if(iLanguage==1){  
            rowCell.setCellValue(device.getItemId().getItemName());  
        }else if(iLanguage==0){ //判斷是否是英文  
            rowCell.setCellValue(device.getItemId().getForShort());  
        }  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(9);  
        //判斷是否是中文  
        if(iLanguage==1){  
            rowCell.setCellValue(device.getZequipId().getZequipGroup().getNameLoc());  
        }else if(iLanguage==0){ //判斷是否是英文  
            rowCell.setCellValue(device.getZequipId().getZequipGroup().getNameEn());  
        }  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(10);  
        rowCell.setCellValue(device.getDeviceName());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(11);  
        rowCell.setCellValue(device.getDeviceNo());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(12);  
        rowCell.setCellValue(device.getDeviceBrand());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(13);  
        rowCell.setCellValue(device.getEquipDriveId().getModel());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(14);  
        rowCell.setCellValue(device.getDeviceCapacity());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(15);  
        rowCell.setCellValue(device.getSystemType());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(16);  
        rowCell.setCellValue(device.getStairsNo());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(17);  
        rowCell.setCellValue(device.getFloor());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(18);  
        rowCell.setCellValue(device.getRoomNo());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(19);  
        rowCell.setCellValue(device.getEnableDate()!=null ? new SimpleDateFormat("yyyy-MM-dd").format(device.getEnableDate()) : "");  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(20);  
        rowCell.setCellValue(device.getBackendLoad());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(21);  
        rowCell.setCellValue(device.getOperationTips());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(22);  
        rowCell.setCellValue(device.getPersonId().getUserName());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(23);  
        rowCell.setCellValue(device.getInspecTime()+resources.getMessage(locale, "device.export.excel.minute"));  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(24);  
        rowCell.setCellValue(device.getIntervalTime()+resources.getMessage(locale, "device.export.excel.minute"));  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(25);  
        rowCell.setCellValue(device.getDevicePath());  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(26);  
        rowCell.setCellValue(device.getValidityNr() == 0 ? resources.getMessage(locale, "mmc.soft.person.disabled") : resources.getMessage(locale, "mmc.soft.person.enable"));  
        rowCell.setCellStyle(styles.get("cell"));  
          
        rowCell = cellRow.createCell(27);  
        rowCell.setCellValue(device.getOtherInfo() != null ? device.getOtherInfo() : "");  
        rowCell.setCellStyle(styles.get("cell"));  
    }  
    wb.write(sos);  
    sos.flush();  
    sos.close();  
    return null;  
}  
  
//excel樣式  
private Map<String, CellStyle> createStyles(Workbook wb)  
{  
    Map<String, CellStyle> styles = new HashMap<String, CellStyle>();  
    CellStyle style;  
    Font titleFont = wb.createFont();  
    titleFont.setFontHeightInPoints((short) 18);  
    titleFont.setBoldweight(Font.BOLDWEIGHT_BOLD);  
    style = wb.createCellStyle();  
    style.setAlignment(CellStyle.ALIGN_CENTER);  
    style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);  
    style.setFont(titleFont);  
    styles.put("title", style);  
  
    style = wb.createCellStyle();  
    style.setAlignment(CellStyle.ALIGN_CENTER);  
    style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);  
    style.setWrapText(true);  
    styles.put("header", style);  
  
    style = wb.createCellStyle();  
    style.setAlignment(CellStyle.ALIGN_CENTER);  
    style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);  
    style.setWrapText(true);  
    styles.put("cell", style);  
  
    style = wb.createCellStyle();  
    style.setAlignment(CellStyle.ALIGN_CENTER);  
    style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);  
    style.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());  
    style.setFillPattern(CellStyle.SOLID_FOREGROUND);  
    style.setDataFormat(wb.createDataFormat().getFormat("0.00"));  
    styles.put("formula", style);  
  
    style = wb.createCellStyle();  
    style.setAlignment(CellStyle.ALIGN_CENTER);  
    style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);  
    style.setFillForegroundColor(IndexedColors.GREY_40_PERCENT.getIndex());  
    style.setFillPattern(CellStyle.SOLID_FOREGROUND);  
    style.setDataFormat(wb.createDataFormat().getFormat("0.00"));  
    styles.put("formula_2", style);  
  
    return styles;  
}  

poi導出excel合並單元格(包括列合並、行合並)