apache-poi

问题 Requirement I need a new XSSFCellStyle because I have to change some stylings. Situation I only have a XSSFCellStyle - I don't have the XSSFCell it belongs to. Thus I also don't have access to the related XSSFSheet or XSSFWorkbook . What I already tried I don't have the XSSFWorkbook therefore I can't call workbook.createCellStyle() . The XSSFCellStyle constructor needs at least a StylesTable which I also don't have (because I couldn't find a way to get it from the old XSSFCellStyle ). The

问题 I am uploading one excel file from browser. I am using POI jar. But getting error Invalid header signature; read 3255307777713450285, expected -2226271756974174256 below the two jsp files i have used: JSP 1: <form action="Upload.jsp" enctype="MULTIPART/FORM-DATA" method=post > <input type="file" name="filename" /> <input type="submit" value="Upload" /> </form> JSP 2:Upload.jsp try{ InputStream file = request.getInputStream(); POIFSFileSystem myFileSystem = new POIFSFileSystem(file);

问题 I'm having problems getting the exact size I want with my calculations for columnWidth and my calculated row height because I don't understand the documentation. In terms of columnWidth, I am using the line of code sheet.setColumnWidth(int columnIndex, int width); but I don't understand how to properly calculate width. I get that it says: width = Truncate([{Number of Visible Characters} * {Maximum Digit Width} + {5 pixel padding}]/{Maximum Digit Width}*256)/256 So I have an exact Excel sheet

问题 I wrote a programm, that writes values into a xlsx-file. At the first glance it seems to work like it should. But in my xlsx-file I've got a Formula in another cell that should works correct if I type in the value manually, but if my programm sets exactly the same value it doesn't work like it should. If I open the file manually after my programm wrote a value and confirm the wrote value by pressing the enter button in the processing strip it works like it should. There are no Exceptions

问题 My objective is to load MS-Word, PDF etc. documents onto HDFS and extract certain 'content' out of each document and use it further for some analysis. Instead of beginning to fiddle with InputFormat etc., I thought that libraries like Tika can be used and incorporated in MR. The partial content of one of the Word doc. is as follows: 6. Statement of Strategy We have 4 strategic interventions that will deliver a competitive advantage. Innovate upstream and downstream 1. Biopulp. We will execute

问题 I'm using the OpenNTF POI 4 XPages plugin. This works very well for generating Word Documents. Now, after generating the Word document, I would like to create a new response document and store the word document as an attachment in a rich text field in this response document. Here is my code (in the poi postGenerationProcess property of the POI 4 XPages widget): var doc:NotesDocument = currentDocument.getDocument(); var rdoc:NotesDocument = database.createDocument(); rdoc.appendItemValue("Form

问题 Im using an xlsx file that contains a DATE(year, month, day) formula within a cell. This cell is formatted as date, so Excel/OpenOffice shows the proper date. e.g. the cell content is '=DATE(2013;1;1)' which produces : '01.01.2013' So far - so good. When reading this file with the poi library I do: XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(new File("/home/detlef/temp/test.xlsx"))); XSSFSheet sheet = workbook.getSheet("Sheet A"); XSSFCell cell = sheet.getRow(0).getCell(0);

问题 I have gone through many questions posted here and referred POI documentation too, but i am not able to resolve this issue. Issue: When trying to re-calculate the formula i am getting an exception. Formula: =CONCATENATE("#DFLT=",COUNTIF(C5:C390,"=DEFAULTERS"),"; #NP=",COUNTIF(C5:C390,"=NOT PAID"),"; #PCsh=",COUNTIF(C5:C390,"=Paid Cash"),"; #PChk=",COUNTIF(C5:C390,"=Paid Cheque"),"; #PNeft=",COUNTIF(C5:C390,"=Paid Neft")) Exception: 10-22 17:13:15.177: E/AndroidRuntime(26300): FATAL EXCEPTION:

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . I need to convert doc/docx to html. I have files stored in Amazon s3. I need to view & edit it in browser. Right now, I am using Apache POI to convert doc/docx to html. And I am displaying the response on HTML editor(Jquery Plugin). It works but alignment/format changes. Also images not extracted. Any solution

问题 I have been trying to segment a docx document to multiple documents based on a predefined criteria. following is my approach to cut it to paragraphs try { FileInputStream in = new FileInputStream(file); XWPFDocument doc = new XWPFDocument(in); List<XWPFParagraph> paragraphs = doc.getParagraphs(); for (int idx = 0; idx < paragraphs.size(); idx++) { XWPFDocument outputDocument = new XWPFDocument(); createParagraphInAnotherDocument(outputDocument, paragraphs.get(idx).getText()); String fullPath