apache-poi

问题 I have this code: public class ImageAttachmentInDocument { /** * @param args * @throws IOException * @throws InvalidFormatException */ public static void main(String[] args) throws IOException, InvalidFormatException { XWPFDocument doc = new XWPFDocument(); FileInputStream is = new FileInputStream("encabezado.jpg"); doc.addPictureData(IOUtils.toByteArray(is), doc.PICTURE_TYPE_JPEG); XWPFParagraph title = doc.createParagraph(); XWPFRun run = title.createRun(); run.setText("Fig.1 A Natural

问题 Im trying to download an Excel file in Reactjs by calling a Spring REST endpoint but I'm running into issues with a corrupt file. React call... getFile(){ axios.get('get/download') .then((response) => { var blob = new Blob([response.data], {type:'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'}); filesaver.saveAs(blob, "excel.xlsx"); }); } Spring controller.... @RequestMapping(value = "/download", method = RequestMethod.GET) public void downloadExcelFile(final

问题 Is there any way I can get to the formatted value that excel shows in a row, versus the raw value I am getting returned from the stream? Or would this fall under the "formula evaluation" category, which this does not support? 回答1: If you have the Cell that you're trying to get the data out of, try the following DataFormatter formatter = new DataFormatter(); String formattedCellValue = formatter.formatCellValue(myCell); If that doesn't get exactly what you're looking for, there are a number of

问题 I am developing a compare tool for the word document, whenever there is difference in both the document i need to highlight the substring in the paragraph.When i try to highlight using run, its highlighting whole paragraph instead of the sub string. Can you please guide us, how can i achieve this for a substring. 回答1: I had the same problem. Here I post a sample method where you highlight a substring contained in a run. private int highlightSubsentence(String sentence, XWPFParagraph p, int i)

问题 I have Java code to create table and some text to word document using Apache POI but it adds table in last document. I want to write some text, then add table and write some text again. Currently it adds table first and last document add 2 test (Hi & Bye) My code : public static void main(String[] args)throws Exception { //Blank Document XWPFDocument document= new XWPFDocument(); //Write the Document in file system FileOutputStream out = new FileOutputStream( new File("create_table.docx")); /

问题 I have Java code to create table and some text to word document using Apache POI but it adds table in last document. I want to write some text, then add table and write some text again. Currently it adds table first and last document add 2 test (Hi & Bye) My code : public static void main(String[] args)throws Exception { //Blank Document XWPFDocument document= new XWPFDocument(); //Write the Document in file system FileOutputStream out = new FileOutputStream( new File("create_table.docx")); /

问题 According to numerous sources, for example Limitations section on official page, probably the only good way to work with excel charts from POI is using Excel file with existing chart as a template and modify source cells used by chart. And it works great. The problem is that we need to have not only one but multiple (and we don't know how many at compile time) worksheets with the same chart but different (dynamically generated) data. Using cloneSheet(sheetNumber) is a way to duplicate a

问题 In order to emulate Excel's rate function, I'm using the Apache POI rate function I grabbed from the svn: private double calculateRate(double nper, double pmt, double pv, double fv, double type, double guess) { //FROM MS http://office.microsoft.com/en-us/excel-help/rate-HP005209232.aspx int FINANCIAL_MAX_ITERATIONS = 20; //Bet accuracy with 128 double FINANCIAL_PRECISION = 0.0000001; //1.0e-8 double y, y0, y1, x0, x1 = 0, f = 0, i = 0; double rate = guess; if (Math.abs(rate) < FINANCIAL

问题 I've written module that generates excel, and deployed it under Servicemix. In Windows environment everything is fine, but under Linux Servicemix unexpectedly crashes on following call: for (short i=0;i<=3;i++) { log.trace("AutoSize column {}", i); worksheet.autoSizeColumn(i); } I'm using POI version 4.2-FINAL, FuseESB 4.2, Java 5.0. There are, however, no hs_err*.pid files. Servicemix logs ends on first autoSizeColumn call. Did anyone met such behaviour and know, how it is caused and how to

问题 I use example: http://svn.apache.org/repos/asf/poi/trunk/src/examples/src/org/apache/poi/ss/examples/BusinessPlan.java This is my dependencies list: <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.15</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3