Using windows-7 and keep getting errors to write code to ready excel
Trying to read excel data file in java maven Keep getting error on
line#49 sheet= book.getSheet(sheetname); I have added all dependencies and imported but still can not clear this error.
package com.newTour.qa.util;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.apache.poi.hslf.model.Sheet;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import com.newTour.qa.Base.TestBase;
public class TestUtil extends TestBase {
public static String TESTDATA_SHEET_PATH = "C:\\Users\\shahgee\\newtour.qu\\src\\main\\java\\"
+ "com\\qa\\newtour\\testdata\\MercutyTourTestData.xlsx" ;
static Workbook book;
static Sheet sheet;
public static Object[][]getTestData(String sheetname){
FileInputStream file = null;
try {
file = new FileInputStream(TESTDATA_SHEET_PATH);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
try {
book= WorkbookFactory.create(file);
} catch (InvalidFormatException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
sheet = book.getSheet(sheetname);
Object[][]data = new Object[sheet.getLastRowNum()][sheet.getRow(0).getLastCellNum()];
for (int i =0; i <sheet.getLastRowNum();i++){
for (int k =0;k <sheet.getRow(0).getLastCellNum(); k++){
data[i][k]= sheet.getRow(i+1).getCell(k).toString();
}
}
return data;
}
}
try to change the import of Sheet class with
org.apache.poi.ss.usermodel.Sheet
what you use right now is Sheet for Powerpoint Document.
here the reference of the library you use right now:
https://www.oschina.net/uploads/doc/poi-3.1-FINAL/org/apache/poi/hslf/model/Sheet.html
Related
I am new to XML.After a lot of search i found XMLUnit to do that but the problem am getting is :
whenever i change the contents of xml file to simple string text and try to execute the code ,it still shows green in junit test which it should not do although it is throwing an exception but my requirement is the signal should be red even the files are not in proper xml format.Enclosing my work for so far.
package mypack;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.List;
import org.custommonkey.xmlunit.DetailedDiff;
import org.custommonkey.xmlunit.Diff;
import org.custommonkey.xmlunit.XMLTestCase;
import org.custommonkey.xmlunit.XMLUnit;
import org.junit.Test;
import org.xml.sax.SAXException;
public class MyXMLTestCase extends XMLTestCase {
enter code here
#Test
public void testMyXmlTestCase() {
FileReader expected = null;
FileReader output = null;
try {
expected = new FileReader("D:/vivek.xml");
output = new FileReader("D:/rahul.xml");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
XMLUnit.setNormalizeWhitespace(Boolean.TRUE);
try {
Diff diff = new Diff(expected,output);
// assertTrue("XMLSimilar"+diff.toString(),diff.similar());
//assertTrue("XMLIdentical"+diff.toString(),diff.identical());
DetailedDiff mydiff = new DetailedDiff(diff);
List allDifferences = mydiff.getAllDifferences();
assertEquals(mydiff.toString(), 0, allDifferences.size());
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
I have an excel sheet from where I am reading excel cel values and importing to DB
Using Apache POI :
if (row.getCell(8) != null) {
setActualDeparture(DateUtil.getJavaDate(row.getCell(8).getNumericCellValue()));
}
The excel sheet has null on Cell 8 , so it should not import anything . but it takes dates like 1899-12-31T00:00:00
What could be the issue ?
The Row.getCell(int cellnum) returns only NULL if there is nothing stored in the file for this cell. It returns the cell if there is something stored in the file for this cell. Even if this is only a NumberFormat for example or any other information for this cell.
But there is a second method Row.getCell(int cellnum, Row.MissingCellPolicy policy) http://poi.apache.org/apidocs/org/apache/poi/ss/usermodel/Row.html#getCell%28int,%20org.apache.poi.ss.usermodel.Row.MissingCellPolicy%29 which can be used in your case.
Example:
There is nothing in A1 but there is a special NumberFormat and not General applied.
import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.*;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import java.io.FileOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.FileInputStream;
import java.io.InputStream;
class GetEmtyCellTest {
public static void main(String[] args) {
try {
InputStream inp = new FileInputStream("workbook.xlsx");
Workbook wb = WorkbookFactory.create(inp);
Sheet sheet = wb.getSheetAt(0);
Row row = sheet.getRow(0);
System.out.println(row.getCell(0).getNumericCellValue()); //0.0
System.out.println(row.getCell(0, Row.RETURN_BLANK_AS_NULL)); //null
FileOutputStream fileOut = new FileOutputStream("workbook.xlsx");
wb.write(fileOut);
fileOut.flush();
fileOut.close();
} catch (InvalidFormatException ifex) {
} catch (FileNotFoundException fnfex) {
} catch (IOException ioex) {
}
}
}
Here is my code:
import org.apache.poi.hslf.HSLFSlideShow;
import org.apache.poi.hslf.model.Slide;
import org.apache.poi.hslf.usermodel.SlideShow;
import java.io.*;
public class CreateNewPresentation
{
public static void main(args[])
{
try
{
SlideShow slideShow = new SlideShow();
Slide slide = slideShow.createSlide();
FileOutputStream out = new
FileOutputStream("slideshow.ppt");
slideShow.write(out);
System.out.println("File Created...");
out.close();
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
The issue is that it does not recognise org.apache.poi package.
How can I make it work?
If you are using netbeans, refer this for setting classpath.
If you want to set classpath from command line refer this
jars I have used : dom4j poi-3.8.jar poi-ooxml-3.8.jar poi-ooxml-schemas-3.8.jar xbean.jar
The code :
package org.capgemini.ui;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Date;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.Vector;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class XSSFWorkBookWriter {
public void writeWorkBook(Vector table) throws Exception {
XSSFWorkbook workBook = new XSSFWorkbook();
XSSFSheet sheet = workBook.createSheet();
table=new Vector();
table.add(new String("Howdy"));
table.add(new java.sql.Date(2012,06,20));
table.add(new Double(13.35D));
table.add(new String("Fine"));
table.add(new java.sql.Date(2012,06,20));
table.add(new Double(13.38D));
Iterator rows=table.iterator();
Enumeration rowsOfVector=table.elements();
int totalNoOfRows=table.size()/2;
int currentRow=0;
while (rows.hasNext () && currentRow<totalNoOfRows){
XSSFRow row = sheet.createRow(currentRow++);
for (int i = 0; i < 3; i++) {
XSSFCell cell=row.createCell(i);
Object val=rows.next();
if( val instanceof String){
cell.setCellValue(val.toString());
}
else if(val instanceof Date){
cell.setCellValue((java.sql.Date)val);
}
else if(val instanceof Double){
cell.setCellValue((Double)val);
}
}
}
FileOutputStream outPutStream = null;
try {
outPutStream = new FileOutputStream("D:/Try.xlsx");
workBook.write(outPutStream);
} catch (IOException e) {
e.printStackTrace();
} finally {
if (outPutStream != null) {
try {
outPutStream.flush();
outPutStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
public static void main(String[] args) {
XSSFWorkBookWriter bookWriter=new XSSFWorkBookWriter();
try {
bookWriter.writeWorkBook(new Vector());
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
ERROR ::
org.apache.poi.hssf.dev.BiffViewer$CommandParseException: Biff viewer needs a filename
at org.apache.poi.hssf.dev.BiffViewer$CommandArgs.parse(BiffViewer.java:333)
at org.apache.poi.hssf.dev.BiffViewer.main(BiffViewer.java:386)
BiffViewer is part of HSSF, which only works with the older .xls files (OLE2 based). You're generating a .xlsx file with XSSF, which is a different low level format.
If you really want to use BiffViewer (not sure why, it's normally only used with debugging, but still), then you'll need to change your XSSF code to be HSSF code. Otherwise, if you did mean to be using XSSF to generate a .xlsx file, then you can't use the HSSF debugging tools. If you want to know what's in your .xlsx file, unzip it (.xlsx is a zip of xml files) and view the XML.
I'm new to this kabeja package so please can some one provide code example or reading material to render PNG from DXF file using Java?
This is the sample code that generate PNG image from DXF file.
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.HashMap;
import org.kabeja.dxf.DXFDocument;
import org.kabeja.parser.*;
import org.kabeja.parser.ParserBuilder;
import org.kabeja.svg.SVGGenerator;
import org.kabeja.xml.*;
public class MyClass {
public static void main(String[] args) {
MyClas x=new MyClas();
x.parseFile("C:\\Users\\Space\\Desktop\\test2.dxf");
}
public void parseFile(String sourceFile) {
try {
FileOutputStream o=new FileOutputStream("C:\\Users\\Space\\Desktop\\test2.png");
InputStream in = new FileInputStream(sourceFile);//your stream from upload or somewhere
Parser dxfParser = ParserBuilder.createDefaultParser();
dxfParser.parse(in, "");
DXFDocument doc = dxfParser.getDocument();
SVGGenerator generator = new SVGGenerator();
//org.xml.sax.InputSource out = SAXPNGSerializer;
SAXSerializer out = new org.kabeja.batik.tools.SAXPNGSerializer();
out.setOutput(o);
generator.generate(doc,out,new HashMap());
} catch (ParseException e) {
e.printStackTrace();
} catch (Exception ioe) {
ioe.printStackTrace();
}
}
}
Hope you get what you required :)