POI:Excel中插入图片,
解析Excel(poi-3.7-20101029.jar,poi-ooxml-3.7-20101029.jar)
/**
* 在Excle2003文档插入条形码
*
* @param fileWordPath
* Excel文档绝对路径
* @param newText
* 需要插入的条形码图片的绝对路径
*/
public static boolean insertImage2Excel03(String fileExcelPath,String fileImagePath) {
FileOutputStream fileOut = null;
BufferedOutputStream bos = null;
BufferedImage bufferImg = null;
ByteArrayOutputStream byteArrayOut = null;
FileInputStream fis = null;
HSSFWorkbook wb = null;
try {
bufferImg = ImageIO.read(new File(fileImagePath));
fis = new FileInputStream(new File(fileExcelPath));
wb = new HSSFWorkbook(fis);
//遍历该excel下的所有页签
for (int i = 0; i < wb.getNumberOfSheets(); i++) {
byteArrayOut = new ByteArrayOutputStream();
HSSFSheet sheet = wb.getSheetAt(i);
ImageIO.write(bufferImg, "jpeg", byteArrayOut);//将图像写入outputStream
sheet.shiftRows(0, sheet.getLastRowNum(), 1, false, false);//获得区域,在第一行上面插入一行
HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
//如果第一行不为空
if (null != sheet.getRow(0))
{
//设置第一行高度
sheet.getRow(0).setHeightInPoints((float) 65);
HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 0, 0,(short) 0, 0, (short)2, 1);//设置条码位置在(0列,0行,1列,1行)
HSSFPicture picture = patriarch.createPicture(anchor, wb.addPicture(byteArrayOut.toByteArray(),HSSFWorkbook.PICTURE_TYPE_JPEG));//把jpeg图片通过流写入该sheet1
picture.resize();//把图片设置成原始大小
}
byteArrayOut.flush();
byteArrayOut.close();
byteArrayOut = null;
}
fileOut = new FileOutputStream(fileExcelPath);
bos = new BufferedOutputStream(fileOut);
wb.write(bos);
bos.flush();
bos.close();
} catch (IOException io) {
io.printStackTrace();
return false;
} finally {
if (null != byteArrayOut)//关闭byteArrayOut流
try {
byteArrayOut.close();
} catch (IOException e) {
e.printStackTrace();
}
if (null != fis) //关闭fis流
try {
fis.close();
} catch (IOException e) {
e.printStackTrace();
}
if (null != fileOut)//关闭fileOut流
try {
fileOut.close();
} catch (IOException e) {
e.printStackTrace();
}
if (null != bos)//关闭fileOut流
try {
bos.close();
bos = null;
} catch (IOException e) {
e.printStackTrace();
}
}
return true;
}
/**
*解析Excel03
*/
public List<List<Map<Integer, DynamicDataEvt>>> readExcel03(String filePath)
{
int startRow = 1;// 开始行
List<List<Map<Integer, DynamicDataEvt>>> content = new ArrayList<List<Map<Integer, DynamicDataEvt>>>();
HSSFWorkbook workbook = null;
FileInputStream input = null;
try
{
input = new FileInputStream(new File(filePath));
workbook = new HSSFWorkbook(input);
}
catch (Exception e)
{
return null;
}
int colsum = 0;
HSSFSheet sheet = null;
HSSFRow dataRow = null;
int sheetnum = workbook.getNumberOfSheets();// 获取页签数
for (int z = 0; z < sheetnum; z++)//
循环页签
{
sheet = workbook.getSheetAt(z);
if (sheet.getFirstRowNum() == sheet.getLastRowNum())// 如果起止行相等说明页签为空
{
continue;
}
if ((startRow - 1) >= sheet.getLastRowNum())
{
continue;
}
List<Map<Integer, DynamicDataEvt>> page = new ArrayList<Map<Integer, DynamicDataEvt>>();
for (int x = (startRow - 1); x <= sheet.getLastRowNum(); x++)
{
dataRow = sheet.getRow(x);
boolean flag = true;
int lastcol = 0;
if (dataRow == null)
{
flag = false;
lastcol = colsum;
}
else
{
colsum = colsum < dataRow.getLastCellNum() ? dataRow
.getLastCellNum() : colsum;
lastcol = dataRow.getLastCellNum();
}
Map<Integer, DynamicDataEvt> cell = new HashMap<Integer, DynamicDataEvt>();
for (int y = 0; y < lastcol; y++)
{
DynamicDataEvt dy = new DynamicDataEvt();
if (flag)
{
MergeCellTwoEvt mer = getHSSFCell(sheet, x, y);
dy.setValue(retrievalCell03(mer.getHcell()));// 单元格的值
dy.setRowNumber(x);// 单元格跨行数
dy.setColNumber(y);// 单元格跨列数
if (mer.isDelegateCall())
{
dy.setRowUniteId(mer.getMergedrowSum());
dy.setColUniteId(mer.getMergedcolSum());
}
else
{
if (mer.isMergedRowSign())
{
dy.setRowUniteId(-1);
}
if (mer.isMergedColSign())
{
dy.setColUniteId(-1);//
}
}
}
else
{
dy.setValue("NULL");
dy.setRowNumber(x);
dy.setColNumber(y);
}
dy.setSheetNumber(z);
cell.put(y, dy);
}
page.add(cell);
}
content.add(page);
}
return content;
}
/**
* 03单元格解析
*
* @param sheet
* @param x
* @param y
* @return
*/
public MergeCellTwoEvt getHSSFCell(HSSFSheet sheet, int x, int y)
{
MergeCellTwoEvt merEvt = new MergeCellTwoEvt();
for (int numMR = 0; numMR < sheet.getNumMergedRegions(); numMR++)
{
CellRangeAddress region = sheet.getMergedRegion(numMR);
if (region.getFirstRow() <= x && region.getLastRow() >= x
&& region.getFirstColumn() <= y
&& region.getLastColumn() >= y)
{
if (region.getFirstRow() == x && region.getFirstColumn() == y)
{
merEvt.setHcell(sheet.getRow(x).getCell(y));
merEvt.setDelegateCall(true);
}
else
{
merEvt.setHcell(sheet.getRow(region.getFirstRow()).getCell(
region.getFirstColumn()));
}
int info = 0;
if ((info = region.getLastRow() - region.getFirstRow()) > 0)
{
merEvt.setMergedrowSum(info + 1);
merEvt.setMergedRowSign(true);
}
if ((info = region.getLastColumn() - region.getFirstColumn()) > 0)
{
merEvt.setMergedcolSum(info + 1);
merEvt.setMergedColSign(true);
}
break;
}
else
{
merEvt.setHcell(sheet.getRow(x).getCell(y));
}
}
if (merEvt.getHcell() == null)
{
merEvt.setHcell(sheet.getRow(x).getCell(y));
}
return merEvt;
}
/**
*获取单元格的值
*/
public String retrievalCell03(HSSFCell hcel)
{
String dataEvt = "";
if (null == hcel)
{
dataEvt = "NULL";
}
// 字符串
else if (hcel.getCellType() == HSSFCell.CELL_TYPE_STRING)
{
dataEvt = (hcel.toString());
}
// 公式
else if (hcel.getCellType() == HSSFCell.CELL_TYPE_FORMULA)
{
dataEvt = (getConversionNumber(getCellValue03(hcel)));
}
else if (hcel.getCellType() == HSSFCell.CELL_TYPE_NUMERIC)
{
if (HSSFDateUtil.isCellDateFormatted(hcel))
{
Date date = hcel.getDateCellValue();
SimpleDateFormat dateFormat = new SimpleDateFormat(
"yyyy年MM月dd日");
dataEvt = (dateFormat.format(date));
}
else
{
dataEvt = (getConversionNumber(String.valueOf(hcel
.getNumericCellValue())));
}
}
else if (hcel.getCellType() == HSSFCell.CELL_TYPE_BLANK)
{
dataEvt = "NULL";
}
else if (hcel.getCellType() == HSSFCell.CELL_TYPE_ERROR)
{
dataEvt = "ERROR";
}
return dataEvt;
}
-------------
还有一个
牛人整理的POI使用pdf。借鉴借鉴。
- poi-ooxml-3.7-20101029.jar (486.6 KB)
- 下载次数: 0
- poi-3.7-20101029.jar (1.6 MB)
- 下载次数: 0
- POI实战_28by_VintageYu_29.pdf (973.8 KB)
- 下载次数: 0