GcExcel 追踪导出进度
GcExcel在V4版本中提供了追踪导出进度的新功能。该功能可以在导出PDF的时候实时监听导出的进度。GcExcel在PdfSaveOptions类中提供getPagePrinting和getPagePrinted事件来跟踪工作簿到PDF的导出进度。
下面的代码用于显示工作簿导出PDF的进度。
//创建pdf文件流
FileOutputStream outputStream = null;
try {
outputStream = new FileOutputStream("PagePrintEventsTrackProgress.pdf");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
// 创建新的工作簿
Workbook workbook = new Workbook();
IWorksheet activeSheet = workbook.getActiveSheet();
activeSheet.getRange("A1").setValue(1);
activeSheet.getRange("A2:A100").setFormulaR1C1("=R[-1]C+1");
PdfSaveOptions options = new PdfSaveOptions();
options.getPagePrintingEvent().addListener(
(sender, e) -> System.out.println(String.format("Printing page %1$s of %2$s", e.getPageNumber(), e.getPageCount())));
activeSheet.getPageSetup().setCenterHeader("Page &P of &N");
workbook.save(outputStream, options);
// 关闭文件流
try {
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
}还可以用setSkipThisPage方法在导出时跳过页面。
例如:
// 创建pdf文件流
FileOutputStream outputStream = null;
try {
outputStream = new FileOutputStream("PagePrintEventsSkipPage.pdf");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
// 创建新的工作簿
Workbook workbook = new Workbook();
IWorksheet activeSheet = workbook.getActiveSheet();
activeSheet.getRange("A1").setValue(1);
activeSheet.getRange("A2:A100").setFormulaR1C1("=R[-1]C+1");
PdfSaveOptions options = new PdfSaveOptions();
options.getPagePrintingEvent().addListener((sender, e) -> {
if (e.getPageNumber() == 2) {
e.setSkipThisPage(true);
}
});
activeSheet.getPageSetup().setCenterHeader("Page &P of &N");
workbook.save(outputStream, options);
// 关闭文件流
try {
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
}最后提供了setHasMorePages方法退出PDF导出。
// 创建pdf文件流
FileOutputStream outputStream = null;
try {
outputStream = new FileOutputStream("PagePrintEventsExitPrinting.pdf");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
// 创建新的工作簿
Workbook workbook = new Workbook();
IWorksheet activeSheet = workbook.getActiveSheet();
activeSheet.getRange("A1").setValue(1);
activeSheet.getRange("A2:A100").setFormulaR1C1("=R[-1]C+1");
PdfSaveOptions options = new PdfSaveOptions();
options.getPagePrintedEvent().addListener((sender, e) -> {
if (e.getPageNumber() == 2) {
e.setHasMorePages(false);
}
});
activeSheet.getPageSetup().setCenterHeader("Page &P of &N");
workbook.save(outputStream, options);
// 关闭文件流
try {
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
导出xlsm文件,可以追加进度吗 Jun2005 发表于 2022-5-14 09:42
导出xlsm文件,可以追加进度吗
你好,目前只支持追踪导出pdf的进度,暂不支持其余文件导出进度追踪。
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