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Excel学习4_ java poi 读取有合并单元格的EXCEL文件

2017-09-06 21:55 639 查看

数据的样子是这样的

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public String addReportByExcel(Long userId,InputStream inputStream,String fileName)

 throws BusinessException{

 String message = "Import success";



 boolean isE2007 = false; //判断是否是excel2007格式

 if(fileName.endsWith("xlsx")){

 isE2007 = true;

 }



 int rowIndex = 0;

 int columnIndex = 0;

 try {

 InputStream input = inputStream; //建立输入流

 Workbook wb = null;

 //根据文件格式(2003或者2007)来初始化

 if(isE2007){

 wb = new XSSFWorkbook(input);

 }else{

 wb = new HSSFWorkbook(input);

 }

 Sheet sheet = wb.getSheetAt(0); //获得第一个表单



 //System.out.println("总行数:"+sheet.getLastRowNum());



 List<CellRangeAddress> cras = getCombineCell(sheet);

 //isMergedRegion(Sheet sheet,int row ,int column);判断是不是合并单元格\

 int count = sheet.getLastRowNum()+1;//总行数



 List<InspectionReport> irs = new ArrayList<>();

 for(int i = 1; i < count;i++){

 rowIndex = i;

 Row row = sheet.getRow(i);

 InspectionReport ir = new InspectionReport();



 ir.setReportName(getCellValue(row.getCell(0)));

 ir.setShift(Double.valueOf(getCellValue(row.getCell(1))).intValue());

 ir.setLine(getCellValue(row.getCell(2)));

 ir.setStationCode(getCellValue(row.getCell(3)));

 ir.setArea(Double.valueOf(getCellValue(row.getCell(4))).intValue());

 ir.setReportStatus(Double.valueOf(getCellValue(row.getCell(5))).intValue());



 List<InspectionItem> items = new ArrayList<>();

 if(isMergedRegion(sheet,i,0)){

 int lastRow = getRowNum(cras,sheet.getRow(i).getCell(0),sheet);



 for(;i<=lastRow;i++){

 row = sheet.getRow(i);

 InspectionItem item = new InspectionItem();

 item.setItem(getCellValue(row.getCell(6)));

 item.setMethod(getCellValue(row.getCell(7)));

 item.setMode(getCellValue(row.getCell(8)));

 item.setStandardValue(getCellValue(row.getCell(9)));

 item.setDeviationValue(getCellValue(row.getCell(10)));

 String pinci = getCellValue(row.getCell(11));

 Double d = Double.valueOf(pinci);

 item.setFrequency(d.intValue());

 items.add(item);

 }

 i--;

 }else{

 row = sheet.getRow(i);

 InspectionItem item = new InspectionItem();

 item.setItem(getCellValue(row.getCell(6)));

 item.setMethod(getCellValue(row.getCell(7)));

 item.setMode(getCellValue(row.getCell(8)));

 item.setStandardValue(getCellValue(row.getCell(9)));

 item.setDeviationValue(getCellValue(row.getCell(10)));

 String pinci = getCellValue(row.getCell(11));

 Double d = Double.valueOf(pinci);

 item.setFrequency(d.intValue());

 items.add(item);

 }

 ir.setItems(items);

 irs.add(ir);



 }



 XaResult<List<InspectionReport>> saved = inspectionReportService.createByXls(1l, irs);

 message = saved.getMessage();



 /*JSONArray js= new JSONArray();

 js.addAll(irs);

 System.out.println(js.toJSONString());*/



 } catch (Exception ex) {

 //xr.setMessage("Import failed, please check the data in "+rowIndex+" rows "+columnIndex+" columns ");

 message = "Import failed, please check the data in "+rowIndex+" rows ";

 }

 return message;

 }

使用到的工具类：

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/**

 * 获取单元格的值

 * @param cell

 * @return

 */

 public String getCellValue(Cell cell){

 if(cell == null) return "";

 if(cell.getCellType() == Cell.CELL_TYPE_STRING){

 return cell.getStringCellValue();

 }else if(cell.getCellType() == Cell.CELL_TYPE_BOOLEAN){

 return String.valueOf(cell.getBooleanCellValue());

 }else if(cell.getCellType() == Cell.CELL_TYPE_FORMULA){

 return cell.getCellFormula() ;

 }else if(cell.getCellType() == Cell.CELL_TYPE_NUMERIC){

 return String.valueOf(cell.getNumericCellValue());

 }

 return "";

 }<pre code_snippet_id="2306825" snippet_file_name="blog_20170401_2_6166356" name="code" class="java">/**

 * 合并单元格处理,获取合并行

 * @param sheet

 * @return List<CellRangeAddress>

 */

 public List<CellRangeAddress> getCombineCell(Sheet sheet)

 {

 List<CellRangeAddress> list = new ArrayList<CellRangeAddress>();

 //获得一个 sheet 中合并单元格的数量

 int sheetmergerCount = sheet.getNumMergedRegions();

 //遍历所有的合并单元格

 for(int i = 0; i<sheetmergerCount;i++)

 {

 //获得合并单元格保存进list中

 CellRangeAddress ca = sheet.getMergedRegion(i);

 list.add(ca);

 }

 return list;

 }



 private int getRowNum(List<CellRangeAddress> listCombineCell,Cell cell,Sheet sheet){

 int xr = 0;

 int firstC = 0;

 int lastC = 0;

 int firstR = 0;

 int lastR = 0;

 for(CellRangeAddress ca:listCombineCell)

 {

 //获得合并单元格的起始行, 结束行, 起始列, 结束列

 firstC = ca.getFirstColumn();

 lastC = ca.getLastColumn();

 firstR = ca.getFirstRow();

 lastR = ca.getLastRow();

 if(cell.getRowIndex() >= firstR && cell.getRowIndex() <= lastR)

 {

 if(cell.getColumnIndex() >= firstC && cell.getColumnIndex() <= lastC)

 {

 xr = lastR;

 }

 }



 }

 return xr;



 }

 /**

 * 判断单元格是否为合并单元格，是的话则将单元格的值返回

 * @param listCombineCell 存放合并单元格的list

 * @param cell 需要判断的单元格

 * @param sheet sheet

 * @return

 */

 public String isCombineCell(List<CellRangeAddress> listCombineCell,Cell cell,Sheet sheet)

 throws Exception{

 int firstC = 0;

 int lastC = 0;

 int firstR = 0;

 int lastR = 0;

 String cellValue = null;

 for(CellRangeAddress ca:listCombineCell)

 {

 //获得合并单元格的起始行, 结束行, 起始列, 结束列

 firstC = ca.getFirstColumn();

 lastC = ca.getLastColumn();

 firstR = ca.getFirstRow();

 lastR = ca.getLastRow();

 if(cell.getRowIndex() >= firstR && cell.getRowIndex() <= lastR)

 {

 if(cell.getColumnIndex() >= firstC && cell.getColumnIndex() <= lastC)

 {

 Row fRow = sheet.getRow(firstR);

 Cell fCell = fRow.getCell(firstC);

 cellValue = getCellValue(fCell);

 break;

 }

 }

 else

 {

 cellValue = "";

 }

 }

 return cellValue;

 }



 /**

 * 获取合并单元格的值

 * @param sheet

 * @param row

 * @param column

 * @return

 */

 public String getMergedRegionValue(Sheet sheet ,int row , int column){

 int sheetMergeCount = sheet.getNumMergedRegions();



 for(int i = 0 ; i < sheetMergeCount ; i++){

 CellRangeAddress ca = sheet.getMergedRegion(i);

 int firstColumn = ca.getFirstColumn();

 int lastColumn = ca.getLastColumn();

 int firstRow = ca.getFirstRow();

 int lastRow = ca.getLastRow();



 if(row >= firstRow && row <= lastRow){

 if(column >= firstColumn && column <= lastColumn){

 Row fRow = sheet.getRow(firstRow);

 Cell fCell = fRow.getCell(firstColumn);

 return getCellValue(fCell) ;

 }

 }

 }



 return null ;

 }





 /**

 * 判断指定的单元格是否是合并单元格

 * @param sheet

 * @param row 行下标

 * @param column 列下标

 * @return

 */

 private boolean isMergedRegion(Sheet sheet,int row ,int column) {

 int sheetMergeCount = sheet.getNumMergedRegions();

 for (int i = 0; i < sheetMergeCount; i++) {

 CellRangeAddress range = sheet.getMergedRegion(i);

 int firstColumn = range.getFirstColumn();

 int lastColumn = range.getLastColumn();

 int firstRow = range.getFirstRow();

 int lastRow = range.getLastRow();

 if(row >= firstRow && row <= lastRow){

 if(column >= firstColumn && column <= lastColumn){

 return true;

 }

 }

 }

 return false;

 }</pre> 

<pre></pre>



<pre></pre>

 

 

 



原文来自：http://blog.csdn.net/a919423654/article/details/68946507

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