xssf

问题 I'm trying to read the xlsx file from asset folder. I received below exception, 05-16 10:12:05.613: E/AndroidRuntime(2915): FATAL EXCEPTION: main 05-16 10:12:05.613: E/AndroidRuntime(2915): java.lang.VerifyError: org/apache/poi/xssf/usermodel/XSSFWorkbook before this exception, I received some warnings also like, Could not find method org.openxmlformats.schemas.spreadsheetml.x2006.main.WorkbookDocument$Factory.parse, referenced from method org.apache.poi.xssf.usermodel.XSSFWorkbook

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 read a excel file to pass the input for some data fields. But when I run the program, some cell values are returning as null, some as blank.Physically when I open the excel file no value is available in the cell. How can I identify manually an excel cell is null or blank. For some scenarios I need to pass the blank values to the fields. If the cell is null I cannot pass the values to the fields. Guide me to reach out. Code: public static void readAllData() throws IOException{ Object result

问题 I read a excel file to pass the input for some data fields. But when I run the program, some cell values are returning as null, some as blank.Physically when I open the excel file no value is available in the cell. How can I identify manually an excel cell is null or blank. For some scenarios I need to pass the blank values to the fields. If the cell is null I cannot pass the values to the fields. Guide me to reach out. Code: public static void readAllData() throws IOException{ Object result

问题 HSSFWorkbook vs XSSFWorkbook and the advantages/disadvantages of XSSFWorkbook and SXSSFWorkbook ? 回答1: A spreadsheet of each with as a summary of API features: Source: https://poi.apache.org/spreadsheet/ 来源： https://stackoverflow.com/questions/33047512/hssfworkbook-vs-xssfworkbook-vs-sxssfworkbook-apache-poi

问题 I need to create a drop down list in excel file using Apache POI. and I am able to do that so But I am not able to make first item in drop down list as default Item. public class sd { /** * @param args * @throws IOException */ public static void main(String[] args) throws IOException { DataValidation dataValidation = null; DataValidationConstraint constraint = null; DataValidationHelper validationHelper = null; XSSFWorkbook wb = new XSSFWorkbook(); XSSFSheet sheet1=(XSSFSheet) wb.createSheet(

问题 I am using the following code: File file = new File("abc.xlsx"); InputStream st = new FileInputStream(file); XSSFWorkbook wb = new XSSFWorkbook(st); The xlsx file itself has 25,000 rows and each row has content in 500 columns. During debugging, I saw that the third row where I create a XSSFWorkbook, it takes a lot of time (1 hour!) to complete this statement. Is there a better way to access the values of the original xlsx file? 回答1: First up, don't load a XSSFWorkbook from an InputStream when

问题 I am using the following code: File file = new File("abc.xlsx"); InputStream st = new FileInputStream(file); XSSFWorkbook wb = new XSSFWorkbook(st); The xlsx file itself has 25,000 rows and each row has content in 500 columns. During debugging, I saw that the third row where I create a XSSFWorkbook, it takes a lot of time (1 hour!) to complete this statement. Is there a better way to access the values of the original xlsx file? 回答1: First up, don't load a XSSFWorkbook from an InputStream when

问题 I am using below code to get date value from XLSX file. This is working absolutely fine for some xlsx file . But It is not giving exact date format which is in xlsx file. This issue is for some file. eg; I have date like this 21/01/2016 (dd/mm/yyyy) but after reading, it gives date as 01/21/16(mm/dd/yy) Is there any other way to get cellstyle? Is it issue of xlsx file?? String dateFmt = cell.getCellStyle().getDataFormatString(); if (DateUtil.isCellDateFormatted(cell)) { double val = cell

问题 I am using POI for generating excel. I have a scenario Like i want to apply background to cell row in the table.But i am unable to do it.I have given the code below.Please tell what is the mistake in my code or is the code i am doing is correct.. Code System.out.println("Called"); try { XSSFWorkbook xb = new XSSFWorkbook(); XSSFSheet sheet = xb.createSheet(sheetName); XSSFCellStyle cellStyle = xb.createCellStyle(); XSSFFont font = xb.createFont(); int rowIdx = 10; short cellIdx = 1;