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lock rename of sheet name POI java

lock rename of sheet name POI java
how to protect sheet name to not let users change it
XSSFSheet sheet = ((XSSFSheet)s);
//to lock my sheet name
sheet.lockmysheetName();
I want to protect just sheet name.

Microsoft Excel does not provide lock the sheet name on sheet level. There is a possibility to protect a workbook. That protects the structure of the workbook. This includes the lock of the sheet names but also the lock of the sheets order and the lock inserting new sheets.
This is what XSSFWorkbook.lockStructure sets.
HSSFWorkbook has nothing comparable up to now. But using InternalWorkbook and WorkbookRecordList and knowledge about the binary record stream in a binary *.xls workbook one can achieve the same.
Complete example:
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.record.Record;
import org.apache.poi.hssf.record.ProtectRecord;
import org.apache.poi.hssf.model.InternalWorkbook;
import org.apache.poi.hssf.model.WorkbookRecordList;
public class CreateExcelLockStructure {
static void lockStructure(HSSFWorkbook hssfWorkbook) {
InternalWorkbook internalWorkbook = hssfWorkbook.getInternalWorkbook();
WorkbookRecordList workbookRecordList = internalWorkbook.getWorkbookRecordList();
int protpos = workbookRecordList.getProtpos();
Record record = workbookRecordList.get(protpos);
if (record instanceof ProtectRecord) {
ProtectRecord protectRecord = (ProtectRecord)record;
protectRecord.setProtect(true);
} else {
ProtectRecord protectRecord = new ProtectRecord(true);
protpos = workbookRecordList.size() - 1;
workbookRecordList.add(protpos, protectRecord);
workbookRecordList.setProtpos(protpos);
}
}
public static void main(String[] args) throws Exception {
Workbook workbook = new XSSFWorkbook(); String filePath = "./CreateExcelLockStructure.xlsx";
//Workbook workbook = new HSSFWorkbook(); String filePath = "./CreateExcelLockStructure.xls";
Sheet sheet = workbook.createSheet("SheetName1");
sheet = workbook.createSheet("SheetName2");
if (workbook instanceof XSSFWorkbook) {
XSSFWorkbook xssfWorkbook = (XSSFWorkbook)workbook;
xssfWorkbook.lockStructure();
} else if (workbook instanceof HSSFWorkbook) {
HSSFWorkbook hssfWorkbook = (HSSFWorkbook)workbook;
lockStructure(hssfWorkbook);
}
FileOutputStream out = new FileOutputStream(filePath);
workbook.write(out);
out.close();
workbook.close();
}
}

Change Author in excel generated by Apache poi

i need to change the author name of the generated excel by apache poi in java. Currently the author name of all generated by apache is "Apache POI", i need to change it. can anyone help me on this?
Thanks in advanced.Generated by Apache poi

HSSFWorkbook is a POIDocument which has SummaryInformation.
XSSFWorkbook is a POIXMLDocument which has POIXMLProperties - POIXMLProperties.CoreProperties.
Code to set author (aka creator) for both XSSF and HSSF:
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
class CreateExcelAuthor {
public static void main(String[] args) throws Exception {
String author = "Axel Richter";
Workbook workbook = new XSSFWorkbook();
//Workbook workbook = new HSSFWorkbook();
workbook.createSheet();
if (workbook instanceof XSSFWorkbook) {
((XSSFWorkbook)workbook).getProperties().getCoreProperties().setCreator(author);
} else if (workbook instanceof HSSFWorkbook) {
((HSSFWorkbook)workbook).createInformationProperties();
((HSSFWorkbook)workbook).getSummaryInformation().setAuthor(author);
}
String fileName = (workbook instanceof XSSFWorkbook)?"Excel.xlsx":"Excel.xls";
try (FileOutputStream out = new FileOutputStream(fileName) ) {
workbook.write(out);
}
workbook.close();
}
}

i want to get&set the value in excel .xls file and get the error message from application

i want to get the (valid and invalid) data from excel .xls file and apply that in my application login page.when the error message is display.i want to write failed in excel file.from my code, i can get the value from excel and apply it in my application but cant write the output in excel.i attached my code here.anyone please help me to fix this.
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.EncryptedDocumentException;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
public class exceltowrite {
public FileInputStream fis = null;
public FileOutputStream fos = null;
public HSSFWorkbook workbook = null;
public HSSFSheet sheet = null;
public HSSFRow row = null;
public HSSFCell cell = null;
String xlFilePath;
public exceltowrite(String string, String xlFilePath) throws IOException {
this.xlFilePath = xlFilePath;
fis = new FileInputStream(xlFilePath);
workbook = new HSSFWorkbook(fis);
fis.close();
}
public static void main(String[]args) throws EncryptedDocumentException, InvalidFormatException, IOException, InterruptedException {
for(int i=1;i<=29;i++) {
String u1 =exceltowrite.getdata(i,0);
String p1=exceltowrite.getdata(i,1);
WebDriver d1=new FirefoxDriver();
d1.get("http:\\www.google.com");
d1.get("napplication site");
d1.findElement(By.name("AdminLoginForm[email]")).sendKeys(u1);
d1.findElement(By.name("AdminLoginForm[password]")).sendKeys(p1);
d1.findElement(By.name("login-button")).click();
Thread.sleep(2000);
WebElement e1= d1.findElement(By.xpath("email error message path"));
String s1=e1.getText();
WebElement e2=d1.findElement(By.xpath("password error message path"));
String s2=e2.getText();
if(s1.equals("Email cannot be blank.")) {
System.out.println("emailid failed");
d1.quit();
if(s2.equals("Password cannot be blank.")) {
System.out.println("password failed");
d1.quit();
} else {
System.out.println("password pass");
d1.quit();
}
} else {
d1.quit();
}
}
}
public static String getdata(int i, int j) throws EncryptedDocumentException, InvalidFormatException, IOException {
FileInputStream fis=new FileInputStream("file path");
Workbook wb=WorkbookFactory.create(fis);
String s=wb.getSheet("Sheet1").getRow(i).getCell(j).getStringCellValue();
return s;
}
public boolean setCellData(String sheetName, int colNumber, int rowNum, String value)
{
try
{
sheet = workbook.getSheet(sheetName);
row = sheet.getRow(rowNum);
System.out.println(row);
cell = row.getCell(colNumber);
System.out.println(cell);
cell.setCellValue(value);
fos = new FileOutputStream(xlFilePath);
workbook.write(fos);
fos.close();
System.out.println("Finished");
}
catch (Exception ex)
{
ex.printStackTrace();
return false;
}
return true;
}}
}
my another class is this
public class Demo {
public static void main(String args[]) throws Exception
{
// exceltowrite at=new exceltowrite("file path");
for(int j=0;j<=29;j++){
at.setCellData("Sheet1",2,j,"failed");
}}}

public static void write() throws IOException {
String home = System.getProperty("user.home");
String downlpad = home + "\\Downloads";
File file = new File(downlpad + "\\" + "Suhit-File-to-Download.xlsx");
FileOutputStream outputStream = new FileOutputStream(file);
XSSFWorkbook workbook = new XSSFWorkbook();
XSSFSheet sheet = workbook.createSheet("Java Books");
ArrayList<Object> bookData = new ArrayList<>();
bookData.add("Name");
bookData.add("Address");
bookData.add("Number");
XSSFRow row = sheet.createRow(0);
for (int i = 0; i < bookData.size(); i++) {
XSSFCell cell3 = row.createCell(i);
cell3.setCellValue((String) bookData.get(i));
}
workbook.write(outputStream);
workbook.close();
}

HSSFWorkbook :This element neither has attached source nor attached Javadoc and hence no Javadoc could be found

I have downloaded Apache Poi Jar but when I write the following code (which a youtube instructor ran with ease), it does not give me any output excel file. What am I doing wrong here? I hover my mouse over HSSFWorkbook eclipse tells me
org.apache.poi.hssf.usermodel.HSSFWorkbook Note: This element neither has attached source nor attached Javadoc and hence no Javadoc could be found.
The code.
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
public class WriteExcel {
public static void main(String[] args) throws FileNotFoundException, IOException {
HSSFWorkbook workbook= new HSSFWorkbook();
HSSFSheet sheet= workbook.createSheet("FirstExcelSheet");
HSSFRow row= sheet.createRow(0);
HSSFCell cell= row.createCell(0);
cell.setCellValue("1,Cell");
workbook.write(new FileOutputStream("excel.xls"));
workbook.close();
workbook.getFirstVisibleTab();
}
}

the first thing use XSSFWorkbook instead of HSSFWorkbook take a look at this link,
and the second thing you have to out stream this file add this line
try (FileOutputStream outputStream = new FileOutputStream("slsx.xlsx")) {
workbook.write(outputStream);
so your code should be like this
public static void main(String[] args) throws Exception {
XSSFWorkbook workbook = new XSSFWorkbook();
XSSFSheet spreadsheet = workbook.createSheet("sheet1");
XSSFRow row = spreadsheet.createRow(1);
XSSFCell cell = row.createCell(1);
cell.setCellValue("test");
try (FileOutputStream out = new FileOutputStream(new File("Writesheet.xlsx"))) {
workbook.write(out);
}
System.out.println("Writesheet.xlsx written successfully");
}

you should add your path in this line like:
workbook.write(new FileOutputStream("{yourpath}/excel.xls"));
it works..

Read data from Excel file in Selenium Java

I am trying to read data from excel sheet to automate my testing(with a number of login credentials). I am using a utility that I found on web. But it is not running successfully.
Here is the utility
package google;
import java.io.File;
import java.io.IOException;
import java.util.Hashtable;
import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
public class class2 {
static Sheet wrksheet;
static Workbook wrkbook =null;
static Hashtable dict= new Hashtable();
//Create a Constructor
public class2(String ExcelSheetPath) throws BiffException, IOException
{
//Initialize
wrkbook = Workbook.getWorkbook(new File(ExcelSheetPath));
//For Demo purpose the excel sheet path is hardcoded, but not recommended :)
wrksheet = wrkbook.getSheet("Sheet1");
}
//Returns the Number of Rows
public static int RowCount()
{
return wrksheet.getRows();
`enter code here` }
//Returns the Cell value by taking row and Column values as argument
public static String ReadCell(int column,int row)
{
return wrksheet.getCell(column,row).getContents();
}
//Create Column Dictionary to hold all the Column Names
public static void ColumnDictionary()
{`enter code here`
//Iterate through all the columns in the Excel sheet and store the value
for(int col=0; col <= wrksheet.getColumns();col++)
{
dict.put(ReadCell(col,0), col);
}
}
//Read Column Names
public static int GetCell(String colName)
{
try {
int value;
value = ((Integer) dict.get(colName)).intValue();
return value;
} catch (NullPointerException e) {
return (0);
}
}
}
And following is the class that calls this utility.
package google;
import java.io.IOException;
import jxl.read.biff.BiffException;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.ie.InternetExplorerDriver;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import google.class2;
public class class3 {
//Global initialization of Variables
static class2 xlsUtil;
WebDriver driver = new InternetExplorerDriver();
//Constructor to initialze Excel for Data source
public class3() throws BiffException, IOException
{
//Let's assume we have only one Excel File which holds all Testcases. Demo !!!
xlsUtil = new class2("C:/Users/admin/workspace/login.xls");
//Load the Excel Sheet Col in to Dictionary for Further use in our Test cases.
xlsUtil.ColumnDictionary();
}
#BeforeTest
public void EnvironmentalSetup()
{
System.setProperty("webdriver.chrome.driver",
"C:/Users/admin/Downloads/chromedriver.exe");
WebDriver driver = new ChromeDriver();
driver.get("http://192.168.1.20/dental/userlogin");
}
#Test
public void GmailLoginPage() throws InterruptedException {
//Create a for loop.. for iterate through our Excel sheet for all the test cases.
for(int rowCnt = 1;rowCnt <= xlsUtil.RowCount();rowCnt++)
{
//Enter User Name by reading data from Excel
WebElement userName = driver.findElement(By.name("UserName"));
userName.clear();
userName.sendKeys(xlsUtil.ReadCell(xlsUtil.GetCell("EmailUserName"), rowCnt));
//Enter Password
WebElement password = driver.findElement(By.name("Password"));
password.clear();
password.sendKeys(xlsUtil.ReadCell(xlsUtil.GetCell("Emailpassword"), rowCnt));
//Click on the Sign In Button
// WebElement signin = driver.findElement(By.name("signIn"));
password.submit();
//Sleep for some time,so that we can see things in action # Screen :)
Thread.sleep(2000);
}
}
}
But when I run dis cass it says 'cant instantiate google.class3
I don't get the mistake here.
Please help me run this code successfully.

FileInputStream file = newFileInputStream(newFile("C:/Users/admin/workspace/login.xls"));
//Get the workbook instance for XLS file
HSSFWorkbook workbook = new HSSFWorkbook(file);
//Get first sheet from the workbook
HSSFSheet sheet = workbook.getSheetAt(0);
//Iterate through each rows from first sheet
Iterator<Row> rowIterator = sheet.iterator();
while(rowIterator.hasNext()) {
Row row = rowIterator.next();
//For each row, iterate through each columns
Iterator<Cell> cellIterator = row.cellIterator();
while(cellIterator.hasNext()) {
Cell cell = cellIterator.next();
if(cell.getColumnIndex() == 0){
driver.findElement(By.name("UserName")).sendKeys(cell.getStringCellValue());
}
else
driver.findElement(By.name("Password")).sendKeys(cell.getStringCellValue());
}

public String getExcelData(String sheetName , int rowNum , int colNum) throws InvalidFormatException, IOException{
FileInputStream fis = new FileInputStream(filePath);
Workbook wb = WorkbookFactory.create(fis);
Sheet sh = wb.getSheet(sheetName);
Row row = sh.getRow(rowNum);
String data = row.getCell(colNum).getStringCellValue();
return data;
}
public int getRowCount(String sheetName) throws InvalidFormatException, IOException{
FileInputStream fis = new FileInputStream(filePath);
Workbook wb = WorkbookFactory.create(fis);
Sheet sh = wb.getSheet(sheetName);
int rowCount = sh.getLastRowNum()+1;
return rowCount;
}
public void setExcelData(String sheetName,int rowNum,int colNum,String data) throws InvalidFormatException, IOException{
FileInputStream fis = new FileInputStream(filePath);
Workbook wb = WorkbookFactory.create(fis);
Sheet sh = wb.getSheet(sheetName);
Row row = sh.getRow(rowNum);
Cell cel = row.createCell(colNum);
cel.setCellType(cel.CELL_TYPE_STRING);
cel.setCellValue(data);
FileOutputStream fos = new FileOutputStream(filePath);
wb.write(fos);
}
public int getcellCount(String sheetName,int rowNum) throws InvalidFormatException, IOException{
FileInputStream fis = new FileInputStream(filePath);
Workbook wb = WorkbookFactory.create(fis);
Sheet sh = wb.getSheet(sheetName);
Row row = sh.getRow(rowNum);
return row.getLastCellNum();
}

public class ExcelLIb {
public static String filePath;
public String getExcelData(String sheetName , String testID , String columnHeader) throws InvalidFormatException, IOException{
String userDir = System.getProperty("user.dir");
filePath = userDir+"\\testdata\\Test_Data.xlsx";
String data = null;
FileInputStream fis = new FileInputStream(filePath);
Workbook wb = WorkbookFactory.create(fis);
Sheet sh = wb.getSheet(sheetName);
int rowcount =getRowCount(sheetName);
for(int r=0 ; r<rowcount; r++){
Row row = sh.getRow(r);
if(row.getCell(0).getStringCellValue().toLowerCase().equals(testID.toLowerCase())){
int col = row.getLastCellNum();
for(int c=0; c<col ; c++){
if(row.getCell(c).getStringCellValue().toLowerCase().equals(columnHeader.toLowerCase())){
row = sh.getRow(r+1);
data = row.getCell(c).getStringCellValue();
break;
}
}
}
}
return data;
}