/**
* 罫線スタイルの<b>CellStyle</b>を生成 1行のみ描画する
*
* @param workbook ワークブック
* @param sheet シート
* @param nRow 行
* @param nColumn 列
* @param isBold 太字フラグ
* @param fontSize 文字サイズ
* @param fontHeight 行高
*/
public static void setCellStyleForLabel(
XSSFWorkbook workbook,
XSSFSheet sheet,
int nRow,
int nColumn,
boolean isBold,
short fontSize,
float fontHeight) {
assert sheet != null;
// style設定
XSSFCellStyle style = workbook.createCellStyle();
XSSFFont font = workbook.createFont();
if (isBold) {
font.setBoldweight(XSSFFont.BOLDWEIGHT_BOLD); // 文字太字
}
font.setFontHeightInPoints((short) fontSize); // 文字サイズ
font.setFontName(DEFAULT_FONT_NAME);
style.setFont(font); // 文字太字 と 文字サイズ
style.setAlignment(CellStyle.ALIGN_GENERAL); // 水平方向の標準
style.setVerticalAlignment(CellStyle.VERTICAL_TOP); // 垂直方向の上詰め
style.setWrapText(true); // 折り返して全体を表示する
// セルに罫線を描画
XSSFRow row = getRowAnyway(sheet, nRow);
XSSFCell cell = getCellAnyway(row, nColumn);
cell.setCellStyle(style);
row.setHeightInPoints(fontHeight); // 行高設定
}
/**
* 创建标题，并设置字体、字号、加粗、颜色
*
* @param workbook
*/
private void setHeadCellFont(XSSFWorkbook workbook, String title) {
XSSFCellStyle style = workbook.createCellStyle();
XSSFRow row = (XSSFRow) workbook.getSheetAt(0).createRow(0); // 创建一个行对象
XSSFCell cell = row.createCell(0); // 创建单元格
XSSFFont font = workbook.createFont(); // 创建字体对象
font.setFontName(HSSFFont.FONT_ARIAL); // 字体
font.setFontHeightInPoints((short) 16); // 字号
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); // 加粗
style.setFont(font);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER_SELECTION); // 水平居中
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 垂直居中
row.setHeightInPoints(23); // 设置行高23像素
cell.setCellStyle(style); // 应用样式对象
workbook
.getSheetAt(0)
.addMergedRegion(new CellRangeAddress(0, 0, 0, 16)); // 四个参数分别是：起始行，结束行，起始列，结束列
cell.setCellValue(title); // 写入头标题
}
private void renderCell(
BandElement bandElement,
String bandName,
Object value,
int gridRow,
int sheetRow,
int sheetColumn,
int rowSpan,
int colSpan,
boolean image) {
if (bandElement instanceof ReportBandElement) {
colSpan = 1;
}
XSSFCellStyle cellStyle =
buildBandElementStyle(bandElement, value, gridRow, sheetColumn, colSpan);
// if we have a subreport on the current grid row we have to take care of the sheetColumn
if (ReportLayout.HEADER_BAND_NAME.equals(bandName)
&& (gridRow == prevSubreportFirstRow)
&& (prevSubreportLastColumn != -1)) {
sheetColumn = prevSubreportLastColumn - prevSubreportFirstColumn - 1 + sheetColumn;
}
XSSFCell c = xlsRow.createCell(sheetColumn);
if (image) {
if ((value == null) || "".equals(value)) {
c.setCellType(XSSFCell.CELL_TYPE_STRING);
c.setCellValue(wb.getCreationHelper().createRichTextString(IMAGE_NOT_FOUND));
} else {
try {
ImageBandElement ibe = (ImageBandElement) bandElement;
byte[] imageBytes = getImage((String) value, ibe.getWidth(), ibe.getHeight());
XSSFClientAnchor anchor =
new XSSFClientAnchor(
0,
0,
0,
0,
(short) sheetColumn,
sheetRow,
(short) (sheetColumn + colSpan),
(sheetRow + rowSpan));
int index = wb.addPicture(imageBytes, XSSFWorkbook.PICTURE_TYPE_JPEG);
// image is created over the cells, so if it's height is bigger we set the row height
short height = xlsRow.getHeight();
int realImageHeight = getRealImageSize((String) value)[1];
if (ibe.isScaled()) {
realImageHeight = ibe.getHeight();
}
short imageHeight = (short) (realImageHeight * POINTS_FOR_PIXEL / 2.5);
boolean doResize = false;
if (imageHeight > height) {
xlsRow.setHeight(imageHeight);
} else {
doResize = true;
}
Picture picture = patriarch.createPicture(anchor, index);
if (doResize) {
picture.resize();
}
anchor.setAnchorType(2);
} catch (Exception ex) {
c.setCellType(XSSFCell.CELL_TYPE_STRING);
c.setCellValue(wb.getCreationHelper().createRichTextString(IMAGE_NOT_LOADED));
}
}
if (cellStyle != null) {
c.setCellStyle(cellStyle);
}
} else {
if (bandElement instanceof HyperlinkBandElement) {
Hyperlink hyp = ((HyperlinkBandElement) bandElement).getHyperlink();
XSSFHyperlink link = wb.getCreationHelper().createHyperlink(XSSFHyperlink.LINK_URL);
link.setAddress(hyp.getUrl());
c.setHyperlink(link);
c.setCellValue(wb.getCreationHelper().createRichTextString(hyp.getText()));
c.setCellType(XSSFCell.CELL_TYPE_STRING);
} else if (bandElement instanceof ReportBandElement) {
Report report = ((ReportBandElement) bandElement).getReport();
ExporterBean eb = null;
try {
eb = getSubreportExporterBean(report, true);
XlsxExporter subExporter = new XlsxExporter(eb, cellStyle);
subExporter.export();
XSSFSheet subreportSheet = subExporter.getSubreportSheet();
if (ReportLayout.HEADER_BAND_NAME.equals(bandName)
&& (gridRow == prevSubreportFirstRow)) {
// other subreports on the same header line after the first
sheetColumn = prevSubreportLastColumn;
sheetRow -= addedPageRows;
pageRow -= addedPageRows;
addedPageRows = 0;
} else {
addedPageRows = subreportSheet.getLastRowNum();
pageRow += addedPageRows;
// if subreport is not on the first column we merge all cells in the columns before,
// between the rows subreport occupies
if (sheetColumn > 0) {
for (int i = 0; i <= sheetColumn - 1; i++) {
CellRangeAddress cra = new CellRangeAddress(sheetRow, pageRow, i, i);
regions.add(new XlsxRegion(cra, null));
}
}
}
int cols = XlsxUtil.copyToSheet(xlsSheet, sheetRow, sheetColumn, subreportSheet);
addRegions(xlsSheet, subExporter.getSubreportRegions(), wb);
if (ReportLayout.HEADER_BAND_NAME.equals(bandName)) {
prevSubreportFirstRow = gridRow;
prevSubreportFirstColumn = sheetColumn;
prevSubreportLastColumn = sheetColumn + cols;
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if ((eb != null) && (eb.getResult() != null)) {
eb.getResult().close();
}
}
} else if (bandElement instanceof ImageColumnBandElement) {
try {
ImageColumnBandElement icbe = (ImageColumnBandElement) bandElement;
String v = StringUtil.getValueAsString(value, null);
if (StringUtil.BLOB.equals(v)) {
c.setCellType(XSSFCell.CELL_TYPE_STRING);
c.setCellValue(wb.getCreationHelper().createRichTextString(StringUtil.BLOB));
} else {
byte[] imageD = StringUtil.decodeImage(v);
byte[] imageBytes = getImage(imageD, icbe.getWidth(), icbe.getHeight());
XSSFClientAnchor anchor =
new XSSFClientAnchor(
0,
0,
0,
0,
(short) sheetColumn,
sheetRow,
(short) (sheetColumn + colSpan),
(sheetRow + rowSpan));
int index = wb.addPicture(imageBytes, XSSFWorkbook.PICTURE_TYPE_JPEG);
// image is created over the cells, so if it's height is bigger we set the row height
short height = xlsRow.getHeight();
int realImageHeight = getRealImageSize(imageBytes)[1];
if (icbe.isScaled()) {
realImageHeight = icbe.getHeight();
}
short imageHeight = (short) (realImageHeight * POINTS_FOR_PIXEL / 2.5);
if (imageHeight > height) {
xlsRow.setHeight(imageHeight);
}
Picture picture = patriarch.createPicture(anchor, index);
picture.resize();
anchor.setAnchorType(2);
}
} catch (Exception e) {
e.printStackTrace();
c.setCellType(XSSFCell.CELL_TYPE_STRING);
c.setCellValue(wb.getCreationHelper().createRichTextString(IMAGE_NOT_LOADED));
}
} else {
if (value == null) {
c.setCellType(XSSFCell.CELL_TYPE_STRING);
c.setCellValue(wb.getCreationHelper().createRichTextString(""));
} else if (value instanceof Number) {
c.setCellType(XSSFCell.CELL_TYPE_NUMERIC);
c.setCellValue(((Number) value).doubleValue());
} else {
String pattern = null;
if (bandElement instanceof FieldBandElement) {
FieldBandElement fbe = (FieldBandElement) bandElement;
pattern = fbe.getPattern();
}
if ((value instanceof java.sql.Date) || (value instanceof java.sql.Timestamp)) {
Date date;
if (value instanceof java.sql.Date) {
date = new Date(((java.sql.Date) value).getTime());
} else {
date = (java.sql.Timestamp) value;
}
if (cellStyle != null) {
if (pattern == null) {
// use default pattern if none selected
Locale locale = Locale.getDefault();
pattern =
((SimpleDateFormat) DateFormat.getDateInstance(SimpleDateFormat.MEDIUM, locale))
.toPattern();
} else {
pattern = StringUtil.getI18nString(pattern, getReportLanguage());
}
cellStyle.setDataFormat(wb.createDataFormat().getFormat(pattern));
}
c.setCellValue(date);
} else {
c.setCellType(XSSFCell.CELL_TYPE_STRING);
String text = StringUtil.getValueAsString(value, pattern);
if ((bandElement != null) && bandElement.isWrapText()) {
// try to interpret new line characters
// \\n is used here to be possible to add in designer grid cell with \n
if (text.contains("\\n")
|| text.contains("\n")
|| text.contains("\r")
|| text.contains("\r\n")) {
String crLf = Character.toString((char) 13) + Character.toString((char) 10);
int lines = countLines(text);
if (text.contains("\r\n")) {
text = text.replaceAll("\r\n", crLf);
} else {
text = text.replaceAll("(\n)|(\r)|(\\\\n)", crLf);
}
c.setCellValue(text);
cellStyle.setWrapText(true);
xlsRow.setHeightInPoints(lines * (cellStyle.getFont().getFontHeightInPoints() + 3));
} else {
c.setCellValue(wb.getCreationHelper().createRichTextString(text));
}
} else {
c.setCellValue(wb.getCreationHelper().createRichTextString(text));
}
}
}
}
if (cellStyle != null) {
if (bandElement != null) {
cellStyle.setRotation(bandElement.getTextRotation());
}
if (!(bandElement instanceof ReportBandElement)) {
c.setCellStyle(cellStyle);
}
}
if ((rowSpan > 1) || (colSpan > 1)) {
CellRangeAddress cra =
new CellRangeAddress(
sheetRow, sheetRow + rowSpan - 1, sheetColumn, sheetColumn + colSpan - 1);
Border beBorder = bandElement.getBorder();
if (hasRowRenderConditions(bandElement, gridRow, value)) {
// for row render conditions we must keep the row border
beBorder = border;
}
regions.add(new XlsxRegion(cra, beBorder));
}
}
}
@Override
public Workbook writeWorkbook(
Workbook workbook, String sheetTitle, List<List<String>> tableDataList, int headerNum) {
if (workbook == null) workbook = new XSSFWorkbook();
int exportRecordNum = tableDataList.size(); // 导出的总记录数
int tableStartRowNum = headerNum > 0 ? headerNum : 0; // 表体数据开始行数
int sheetNum =
exportRecordNum / (CommonConst.EXCEL_MAX_EXPORT_NUM - headerNum)
+ 1; // 工作表的页数
List<XSSFSheet> sheetList = new ArrayList<XSSFSheet>();
if (StringUtils.isEmpty(sheetTitle)) sheetTitle = "sheet";
for (int i = 0; i < sheetNum; i++) {
// 在Excel工作簿中建一工作表
String sTitle = sheetTitle + (i + 1);
XSSFSheet sheet = (XSSFSheet) workbook.createSheet(sTitle);
sheet.setSelected(true); // 设置工作薄为选中
sheet.setAutobreaks(true);
sheet.setPrintGridlines(true);
sheetList.add(sheet);
}
/** ***********************输出表头********************************* */
if (headerNum > 0) {
for (XSSFSheet sheet : sheetList) {
XSSFRow headRow = sheet.createRow(0);
headRow.setHeightInPoints(20);
for (int i = 0; i < headerNum; i++) {
List<String> headerRowDataList = tableDataList.get(i);
for (int j = 0; j < headerRowDataList.size(); j++) {
XSSFCellStyle cellStyle = (XSSFCellStyle) createDefHeaderCellStyle(workbook); // 默认表头样式
createCell(headRow, j, headerRowDataList.get(j), cellStyle);
}
}
// 固定表头
sheet.createFreezePane(0, 1);
}
}
/** *********************输出表体内容************************* */
// 设置列样式
XSSFCellStyle columnStyle = (XSSFCellStyle) workbook.createCellStyle();
columnStyle.setFillBackgroundColor(HSSFColor.GREEN.index);
columnStyle.setWrapText(true);
if (tableDataList.size() > (tableStartRowNum + 1)) {
for (int i = tableStartRowNum; i < exportRecordNum; i++) {
List<String> rowDataList = tableDataList.get(i);
XSSFRow row = null;
int currentSheet = i / CommonConst.EXCEL_MAX_EXPORT_NUM; // 当前工作表的页数
XSSFSheet sheet = sheetList.get(currentSheet);
int rowIndex = i - CommonConst.EXCEL_MAX_EXPORT_NUM * currentSheet;
row = sheet.createRow(rowIndex);
for (int colIndex = 0, colLength = rowDataList.size(); colIndex < colLength; colIndex++) {
createCell(row, colIndex, rowDataList.get(colIndex));
}
}
}
// 调整列的宽度(取第一列为基准)
for (XSSFSheet sheet : sheetList) {
for (int i = 0; i < tableDataList.get(0).size(); i++) {
sheet.autoSizeColumn((short) i);
sheet.setColumnWidth((short) i, (short) (sheet.getColumnWidth((short) i) + 1000));
}
}
return workbook;
}