/**
* 导出Excel
*
* @param cellMapList
* 单元格映射列表
* @param dataList
* 数据列表
* @param rowAccessWindowSize
* 内存中缓存记录数
* @param path
* 保存路径
* @throws Exception
*/
public boolean exportSXSSFExcelImg(String sheetName, List<CellMap> cellMapList, List<T> dataList,
int rowAccessWindowSize, String path) throws Exception {
init(rowAccessWindowSize, sheetName);
Row row;
Cell cell;
BufferedImage bufferImg = null;
ByteArrayOutputStream byteArrayOut = null;
HSSFClientAnchor anchor = null;
if (cellMapList == null || cellMapList.size() <= 0) {
throw new Exception("cellMapList不能为空或小于等于0");
}
int rowIndex = 0;
CellStyle contentStyle = createContentStyle();
row = sheet.createRow(rowIndex++);
sheet.setDefaultColumnWidth(20);
int cellSize = cellMapList.size();
for (int i = 0; i < cellSize; i++) {
CellMap cellMap = cellMapList.get(i);
String title = cellMap.getTitle();
cell = row.createCell(i);
cell.setCellStyle(createHeadStyle());
cell.setCellValue(title);
}
// 数据
int rowSize = (dataList == null) ? 0 : dataList.size();
CreationHelper createHelper = workbook.getCreationHelper();
Hyperlink hyperlink = createHelper.createHyperlink(Hyperlink.LINK_FILE);
HSSFCellStyle hlinkstyle = workbook.createCellStyle();
HSSFFont hssfFont = workbook.createFont();
hssfFont.setUnderline(HSSFFont.U_SINGLE);
hssfFont.setColor(HSSFColor.BLUE.index);
hlinkstyle.setFont(hssfFont);
for (int i = rowIndex; i < rowSize + rowIndex; i++) {
T t = dataList.get(i - rowIndex);
Class<?> clazz = t.getClass();
row = sheet.createRow(i);
row.setHeightInPoints(72);
for (int j = 0; j < cellSize; j++) {
CellMap cellMap = cellMapList.get(j);
cell = row.createCell(j);
cell.setCellStyle(contentStyle);
Object value;
Field field;
try {
field = clazz.getDeclaredField(cellMap.getProperty());
field.setAccessible(true);
value = field.get(t);
} catch (Exception e) {
logger.error("[error] >>> export excel error", e.getMessage());
break;
}
if (!StringUtils.isEmpty(value)) {
if (field.getName().equals("Capture")) {
// 先把读进来的图片放到一个ByteArrayOutputStream中，
// 以便后来的byteArrayOut
byteArrayOut = new ByteArrayOutputStream();
File file = new File(value.toString());
if (file.exists()) {
// 读取图片
bufferImg = ImageIO.read(new File(value.toString()));
// 写入图片
ImageIO.write(bufferImg, "jpg", byteArrayOut);
// 建立插入图片的位置 第1个单元格的行号 第2个单元格的行号
anchor = new HSSFClientAnchor(0, 0, 1023, 255, (short) 0, i, (short) 0, i);
// 插入图片
patriarch.createPicture(anchor,
workbook.addPicture(byteArrayOut.toByteArray(), HSSFWorkbook.PICTURE_TYPE_JPEG));
} else {
cell = row.createCell(j);
cell.setCellValue("Capture");
hyperlink = createHelper.createHyperlink(Hyperlink.LINK_FILE);
String addr = value.toString();
hyperlink.setAddress(addr);
cell.setHyperlink(hyperlink);
cell.setCellStyle(hlinkstyle);
}
}
if (field.getName().equals("Member")) {
// 先把读进来的图片放到一个ByteArrayOutputStream中，
// 以便后来的byteArrayOut
byteArrayOut = new ByteArrayOutputStream();
File file = new File(value.toString());
if (file.exists()) {
// 读取图片
bufferImg = ImageIO.read(new File(value.toString()));
// 写入图片
ImageIO.write(bufferImg, "jpg", byteArrayOut);
// 建立插入图片的位置
anchor = new HSSFClientAnchor(0, 0, 1023, 255, (short) 1, i, (short) 1, i);
// 插入图片
patriarch.createPicture(anchor,
workbook.addPicture(byteArrayOut.toByteArray(), HSSFWorkbook.PICTURE_TYPE_JPEG));
} else {
cell = row.createCell(j);
cell.setCellValue("Member");
hyperlink = createHelper.createHyperlink(Hyperlink.LINK_FILE);
String addr = value.toString();
hyperlink.setAddress(addr);
cell.setHyperlink(hyperlink);
cell.setCellStyle(hlinkstyle);
}
}
if (value instanceof byte[]) {
cell = row.createCell(j);
cell.setCellStyle(contentStyle);
insertPictureByByteArray((byte[]) value, "png", cell);
} else {
cell = row.createCell(j);
cell.setCellStyle(contentStyle);
HSSFRichTextString richString = new HSSFRichTextString((String) value);
HSSFFont font3 = workbook.createFont();
font3.setColor(HSSFColor.BLUE.index);// 定义Excel数据颜色
richString.applyFont(font3);
cell.setCellValue(richString);
}
} else {
cell = row.createCell(j);
cell.setCellStyle(contentStyle);
// RichTextString text = new XSSFRichTextString("");
// cell.setCellValue(text);
HSSFRichTextString richString = new HSSFRichTextString("");
HSSFFont font3 = workbook.createFont();
font3.setColor(HSSFColor.BLUE.index);// 定义Excel数据颜色
richString.applyFont(font3);
cell.setCellValue(richString);
}
}
}
return write2Disk(path);
}
结果类似如下：
OK ，大功告成！