apache-poi

问题 i have an excel to upload which has a column material id.That column contains alphanumeric values,But when i am trying to upload this file value the uploaded column in the jsp page is taking an unexpected E and also taking decimal of that number i am using apache POI to parse the excel.Here i have done so far while(rowIterator.hasNext()) { boolean isValidentry=true; System.out.println("Row number =" + (i+1)); Row row = rowIterator.next(); CategoryObject categoryObject = new CategoryObject();

问题 I am messing with apache poi to manipulate word document. Is there any way to get headings from a doc file? i am able to get plain text from the doc but I need to differentiate all headings from the document file?. IS any function available in apache poi api to get only headings from the ms word file?? 回答1: Promoting a comment to an answer There are two ways to make a "Heading" in Word. The "proper" way, and the way that most people seem to do it... In the styles dropdown, pick the

问题 I want read only excel sheet after creating it using Apache POI HSSF. How can I do that? 回答1: A detailed description can be found here: http://systeminetwork.com/article/locking-cells-hssf Basically you have to assign your cells a custom CellStyle with CellStyle.setLocked(true) Edited Hi Gaurav, here is the complete and working code: HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet sheet = workbook.createSheet("sheet1"); /* password required for locks to become effective */ sheet

问题 Hi I'm having a bit of trouble using the Apache POI library in java. I've downloaded and imported the library into my project, but am unable to import it into my java class. (like you would do): import java.awt.*; Am I looking at this the wrong way, or am I missing something? 回答1: If you are using maven, map de dependecies: <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.14</version> </dependency> Then import and use the apache poi library: import org

问题 I have written code as below to fetch value from Excel. String CID = s1.getRow(i).getCell(0).getStringCellValue(); but in excel, 1st cell is a numeric value, but in above code I am trying to fetch String cell value. thats why I am getting error as : Exception in thread "main" java.lang.IllegalStateException: Cannot get a text value from a numeric cell Can anyone please provide a solution for this. how to fetch the numeric value from excel? 回答1: getCellType() for any cell gives you the type of

问题 I need some help on setting the cell style base on the cell value. The code used to populate cell. String totalvariationweightv1 = "J" + (x+1); String totalvariationweightv2 = "L" + (x+1); cell85014.setCellType(Cell.CELL_TYPE_FORMULA); cell85014.setCellFormula("SUM(((" + totalvariationweightv2 + "-" + totalvariationweightv1 + ")/" + totalvariationweightv1 + ")*100)"); Then I need to color the field if it exceeds a certain value. Right now I just have alternating colors: cell85014.setCellStyle

问题 Am trying to create a web application which reads an existing xls file(we do not control file creation ) using POI and java. The size of the uploaded file is quite large so the goal is to use event driven excel parsing APIs. I was not able to find any API to access cell colors using the event driven approach. However the uploaded excels have some logic based on the cell colors. Any one has an idea how I can go about it? Thanks! 回答1: You probably want a FormatTrackingHSSFListener - that will

问题 Hi encountered an error in build xml. From the log i think that the error is with apache poi library "poi-ooxml-3.9-20121203" and regarding Java versions. I am currently using JDK 4 and apache poi 3.9. Buildfile: C:\POITest\build.xml init: clean: [delete] Deleting directory C:\POITest\build [delete] Deleting directory C:\POITest\dist init: [mkdir] Created dir: C:\POITest\dist [mkdir] Created dir: C:\POITest\build [mkdir] Created dir: C:\POITest\dist\lib compile: [javac] C:\POITest\build.xml

问题 I have a GWT application with server and client code. I want to read and display an Excel (.xslx) file from the user in the GUI without passing it to the server. Is it possible to do this with the Apache POI or can't GWT compile all needed code from POI? 回答1: On the client side you will only be able to use this packages: http://www.gwtproject.org/doc/latest/RefJreEmulation.html You have to pass the excel to the server 来源： https://stackoverflow.com/questions/29649868/read-and-edit-excel-in-gwt

问题 Please read full before marking as duplicate. I have seen all the related/similar questions already and I guess I have something weird happening here. I'm using Apache POI version 3.9 to generate a 4 sheet workbook. Every time I'm done filling the sheet, I auto-size the columns. Here's the code: for (String alias : map.keySet()) { Sheet sheet = workbook.createSheet(getSheetNameForAlias(alias)); List<Object[]> resultList = (List<Object[]>) map.get(alias); Collections.sort(resultList.subList(1,