apache-poi

XWPFDocument doc= new XWPFDocument(); InputStream a = someMethod(underConditions(inputimage)); paragraph.createRun().addPicture(a, Document.PICTURE_TYPE_PNG, "", Units.toEMU(20), Units.toEMU(20)); a.close(); doc.write(new FileOutputStream("CreateWordHeaderFooter.docx")); doc.close(); This is simple code for add a image in poi word. But InputStream a is different under different conditions. If inputimage is small Units.toEMU(20), Units.toEMU(20) is to big, and if inputimage is big Units.toEMU(20), Units.toEMU(20) is too small. In this conditions images are distorted. So my question is how to

I'm using JXLS to populate a template excel spreadsheet. Sometimes, one input - a list - is empty. When this happens, the template fields which use this list are shown in the populated spreadsheet in full JXLS regalia - eg, " ${someList.someValue} ". The fields in question are all in a single row (expanded to list.size() rows by JXLS). I want to clear the whole row when there are no records in the list. Is there a way to do so in JXLS? Alternatively, can anyone suggest a complementary way to use JExcel or POI to do so? You can use <jx:if> tags in your excel template. For example if you have a

Is it possible to create and write to a (new) excel file using the event driven API from POI? I've found examples on how to read with that API, but not how to write. thanks, Jeff Here is one possibility, not very well written, though: http://www.docjar.org/html/api/org/apache/poi/xssf/usermodel/examples/BigGridDemo.java.html I'm using a modified version of that, which does not require temporary files and is overall more efficient Yes. Absolutely. Look at POI-XSSF and POI-HSSF http://poi.apache.org/spreadsheet/how-to.html#user_api You could use the SXSSF from Apache POI https://poi.apache.org

I have done reading doc file now i'm trying to read docx file content. when i searched for sample code i found many, nothing worked. check the code for reference... import java.io.*; import org.apache.poi.xwpf.usermodel.XWPFDocument; import org.apache.poi.xwpf.extractor.XWPFWordExtractor; import com.itextpdf.text.pdf.PdfWriter; import com.itextpdf.text.Document; import com.itextpdf.text.Paragraph; public class createPdfForDocx { public static void main(String[] args) { InputStream fs = null; Document document = new Document(); XWPFWordExtractor extractor = null ; try { fs = new FileInputStream

I need to read (15000) excel files for my thesis. I'm using apache poi to open and later to analyze them but after around 5000 files I'm getting the following exception and stacktrace: Exception in thread "main" java.lang.OutOfMemoryError: GC overhead limit exceeded at org.apache.xmlbeans.impl.store.Cur$CurLoadContext.attr(Cur.java:3044) at org.apache.xmlbeans.impl.store.Cur$CurLoadContext.attr(Cur.java:3065) at org.apache.xmlbeans.impl.store.Locale$SaxHandler.startElement(Locale.java:3263) at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.reportStartTag(Piccolo.java:1082) at org.apache.xmlbeans

I have an image and some text below the image in an excel sheet. when i am applying autoSizeColumn() to the column where text present the image is also getting streched . i am also setting the anchortype to 2 but this is not protecting the image to resize. I am posting some sample code here. public static void main(String[] args) { try{ XSSFWorkbook book = new XSSFWorkbook(); XSSFSheet sheet = book.createSheet("Test Sheet"); InputStream is = new FileInputStream("D:\\RPM_Eclipse_Workspaces\\B6.9\\00POI\\Chrysanthemum.jpg"); byte[] bytes = IOUtils.toByteArray(is); int pictureIdx = book

We are using apache poi 3.8 to parse excels. We need to be able to detect (and skip) hidden rows as they tend to contain junk data in our usecases. It would seem this should work: row.isFormatted() && row.getRowStyle().getHidden() But there never appears to be any row-level formatting (getRowStyle() always returns null). As a last resort we thought checking cell styles might work: for (int i = 0; i < row.getLastCellNum(); i++) { Cell cell = row.getCell(i); if (cell != null && cell.getCellStyle() != null && cell.getCellStyle().getHidden()) ... But for every row we get (custom output in the

I am running a shell script which calls a java class to get some data from database and create an excel report with that data. I get the error Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/poi/ss/usermodel/Workbook when the code hits the below line in my java class: XSSFWorkbook workbook = new XSSFWorkbook (); This is how I have defined the classpath: CLASSPATH=${CLASSPATH}:<path-to-jars>/poi-2.5.1-final-20040804.jar CLASSPATH=${CLASSPATH}:<path-to-jars>/poi-ooxml-3.11.jar I verified that the jars have been downloaded(via gradle), so trying to understand what am I