TestNG中的DataProvider使用Java WebDriver从Excel中传递数据

我有一个包含用户名和密码的login页面。 我有一个类XcelParserTestNGLogin来创build，更新和从Excel工作表加载方法。 还有另一个类是TestNG类的Login类。 我正在使用DataProvider从Excel传递数据。 但是我得到exception数据提供者正在尝试传递4个参数，但方法需要2 。

这是我的TestNG代码：

public class Login { private static WebDriver driver; XcelParserTestNGLogin login1 = new XcelParserTestNGLogin(); Object[][] data1; /*public Login() throws IOException, InterruptedException { FileInputStream fis = new FileInputStream("Data//LoginPage.xls"); XcelParserTestNGLogin login1 = new XcelParserTestNGLogin(fis, "Login"); //this.data1 = login1.loadFromSpreadsheet(fis, "Login"); }*/ @BeforeClass public void test() throws Exception { System.setProperty("webdriver.chrome.driver", "C:\\Chrome\\chromedriver_win_26.0.1383.0\\chromedriver.exe"); driver = new ChromeDriver(); driver.get("Any Url"); } @DataProvider public Object[][] dp() throws IOException { //login1.fileName = "Data//Login.xls"; //login1.sheetName = "Sheet1"; FileInputStream fis = new FileInputStream("Data//LoginPage.xls"); String sheetName = "Login"; login1.loadFromSpreadsheet(fis,sheetName); return login1.getData(); } @Test(dataProvider = "dp") public void devLogin(String UserName,String PassWord) throws InterruptedException, IOException { driver.findElement(By.name("txtUserName")).sendKeys(UserName); driver.findElement(By.name("txtPwd")).sendKeys(PassWord); driver.findElement(By.name("btnSignIn")).click(); Thread.sleep(5000); if (driver.findElement(By.linkText("DashBoard")).isDisplayed()) { List<String> arrayList = new ArrayList<String>(); arrayList.add("Pass"); HSSFWorkbook workbook = new HSSFWorkbook(); login1.createSheet("Login", workbook, arrayList); } else { try{ Alert alert=driver.switchTo().alert(); String alertText=alert.getText(); Assert.assertEquals("invalid username or password,please try again",alertText); alert.accept(); }catch(UnhandledAlertException e){ e.printStackTrace(); } List<String> arrayList = new ArrayList<String>(); arrayList.add("Fail"); HSSFWorkbook workbook = new HSSFWorkbook(); login1.createSheet("Login", workbook, arrayList); } } } 

这是我的代码XcelParserTestNGLogin（）

 public class XcelParserTestNGLogin { private transient Object[][] data; String fileName,sheetName; public XcelParserTestNGLogin() { } public XcelParserTestNGLogin(InputStream excelInputStream, String sheetName) throws IOException { this.data = loadFromSpreadsheet(excelInputStream, sheetName); } public Object[][] getData() { return data; } Object[][] loadFromSpreadsheet(InputStream excelFile, String sheetName) throws IOException { // TODO Auto-generated method stub HSSFWorkbook workbook = new HSSFWorkbook(excelFile); Sheet sheet = workbook.getSheet(sheetName); int numberOfColumns = countNonEmptyColumns(sheet); int numberOfRows = sheet.getLastRowNum() + 1; data = new Object[numberOfRows - 1][numberOfColumns - 1]; for (int rowNum = 1; rowNum < numberOfRows; rowNum++) { Row row = sheet.getRow(rowNum); if (isEmpty(row)) { break; } else { for (int column = 1; column < numberOfColumns; column++) { Cell cell = row.getCell(column); if (cell == null || cell.getCellType() == Cell.CELL_TYPE_BLANK) { data[rowNum - 1][column - 1] = ""; } else { data[rowNum - 1][column - 1] = objectFrom(workbook, cell); } } } } return data; } private boolean isEmpty(Row row) { // TODO Auto-generated method stub Cell firstCell = row.getCell(0); boolean rowIsEmpty = (firstCell == null) || (firstCell.getCellType() == Cell.CELL_TYPE_BLANK); return rowIsEmpty; } /** * Count the number of columns, using the number of non-empty cells in the * first row. */ private int countNonEmptyColumns(Sheet sheet) { // TODO Auto-generated method stub Row firstRow = sheet.getRow(0); return firstEmptyCellPosition(firstRow); } private int firstEmptyCellPosition(Row cells) { // TODO Auto-generated method stub int columnCount = 0; for (Cell cell : cells) { if (cell.getCellType() == Cell.CELL_TYPE_BLANK) { break; } columnCount++; } return columnCount; } private Object objectFrom(HSSFWorkbook workbook, Cell cell) { // TODO Auto-generated method stub Object cellValue = null; if (cell.getCellType() == Cell.CELL_TYPE_BLANK) { cellValue = cell.getRichStringCellValue().getString(); } else if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC) { cellValue = getNumericCellValue(cell); } else if (cell.getCellType() == Cell.CELL_TYPE_BOOLEAN) { cellValue = cell.getBooleanCellValue(); } else if (cell.getCellType() == Cell.CELL_TYPE_FORMULA) { cellValue = evaluateCellFormula(workbook, cell); } return cellValue; } private Object getNumericCellValue(final Cell cell) { Object cellValue; if (DateUtil.isCellDateFormatted(cell)) { cellValue = new Date(cell.getDateCellValue().getTime()); } else { cellValue = cell.getNumericCellValue(); } return cellValue; } private Object evaluateCellFormula(final HSSFWorkbook workbook, final Cell cell) { FormulaEvaluator evaluator = workbook.getCreationHelper() .createFormulaEvaluator(); CellValue cellValue = evaluator.evaluate(cell); Object result = null; if (cellValue.getCellType() == Cell.CELL_TYPE_BOOLEAN) { result = cellValue.getBooleanValue(); } else if (cellValue.getCellType() == Cell.CELL_TYPE_NUMERIC) { result = cellValue.getNumberValue(); } else if (cellValue.getCellType() == Cell.CELL_TYPE_STRING) { result = cellValue.getStringValue(); } return result; } public void updateExcel(final InputStream excelFile, String SheetName, List<String> list) { HSSFWorkbook workbook = new HSSFWorkbook(); Sheet sheet = null; if (workbook.getSheetIndex(SheetName) > 0) { sheet = workbook.getSheet(SheetName); if (list != null && list.size() != sheet.getLastRowNum()) { workbook.removeSheetAt(workbook.getSheetIndex(SheetName)); createSheet(SheetName, workbook, list); } else { createSheet(SheetName, workbook, list); } } } void createSheet(String SheetName, HSSFWorkbook workbook, List<String> list) { // TODO Auto-generated method stub String[] Heading = {"UserName", "Password", "Result" }; Sheet sheet = workbook.createSheet(SheetName); HSSFRow row = null; HSSFCell cell = null; row = (HSSFRow) sheet.createRow(0); for (int cellNum = 0; cellNum < Heading.length; cellNum++) { cell = row.createCell(cellNum); cell.setCellValue(Heading[cellNum]); } for (int rowNum = 1; rowNum <= list.size(); rowNum++) { String[] cellVals = {"uname", "pswd", list.get(rowNum - 1) }; row = (HSSFRow) sheet.createRow(rowNum); for (int cellNum = 0; cellNum < cellVals.length; cellNum++) { cell = row.createCell(cellNum); if (!(cellNum == cellVals.length)) cell.setCellValue(cellVals[cellNum]); else cell.setCellValue(true); } } try { FileOutputStream out = new FileOutputStream("Data//LoginPage.xls"); workbook.write(out); out.close(); } catch (Exception e) { e.printStackTrace(); } } } 

Answer 1

记住你的对象数组左边的第一个方括号的长度表示你的testing方法被调用的次数。

第二个方括号的长度表示你的testing方法应该有多less个参数。 根据你的testing方法的签名，你的数组声明应该是obj = new Object[maxRows][2] 。

Answer 2

 package testng; import org.apache.poi.hssf.usermodel.HSSFCellStyle; import org.apache.poi.hssf.usermodel.HSSFDateUtil; import org.apache.poi.hssf.usermodel.HSSFHyperlink; import org.apache.poi.hssf.util.HSSFColor; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.CellStyle; import org.apache.poi.ss.usermodel.IndexedColors; import org.apache.poi.xssf.usermodel.*; import java.io.*; import java.util.Calendar; public class ExcelReader { public String path; public FileInputStream fis = null; public FileOutputStream fileOut =null; private XSSFWorkbook workbook = null; private XSSFSheet sheet = null; private XSSFRow row =null; private XSSFCell cell = null; public ExcelReader(String path) { this.path=path; try { fis = new FileInputStream(path); workbook = new XSSFWorkbook(fis); sheet = workbook.getSheetAt(0); fis.close(); } catch (Exception e) { e.printStackTrace(); } } // returns the row count in a sheet public int getRowCount(String sheetName){ int index = workbook.getSheetIndex(sheetName); if(index==-1) return 0; else{ sheet = workbook.getSheetAt(index); int number=sheet.getLastRowNum()+1; return number; } } // returns the data from a cell public String getCellData(String sheetName,String colName,int rowNum){ try{ if(rowNum <=0) return ""; int index = workbook.getSheetIndex(sheetName); int col_Num=-1; if(index==-1) return ""; sheet = workbook.getSheetAt(index); row=sheet.getRow(0); for(int i=0;i<row.getLastCellNum();i++){ //System.out.println(row.getCell(i).getStringCellValue().trim()); if(row.getCell(i).getStringCellValue().trim().equals(colName.trim())) col_Num=i; } if(col_Num==-1) return ""; sheet = workbook.getSheetAt(index); row = sheet.getRow(rowNum-1); if(row==null) return ""; cell = row.getCell(col_Num); if(cell==null) return ""; if(cell.getCellType()==Cell.CELL_TYPE_STRING) return cell.getStringCellValue(); else if(cell.getCellType()==Cell.CELL_TYPE_NUMERIC || cell.getCellType()==Cell.CELL_TYPE_FORMULA ){ String cellText = String.valueOf(cell.getNumericCellValue()); if (HSSFDateUtil.isCellDateFormatted(cell)) { double d = cell.getNumericCellValue(); Calendar cal =Calendar.getInstance(); cal.setTime(HSSFDateUtil.getJavaDate(d)); cellText = (String.valueOf(cal.get(Calendar.YEAR))).substring(2); cellText = cal.get(Calendar.DAY_OF_MONTH) + "/" + cal.get(Calendar.MONTH)+1 + "/" + cellText; } return cellText; }else if(cell.getCellType()==Cell.CELL_TYPE_BLANK) return ""; else return String.valueOf(cell.getBooleanCellValue()); } catch(Exception e){ e.printStackTrace(); return "row "+rowNum+" or column "+colName +" does not exist in xls"; } } // returns the data from a cell public String getCellData(String sheetName,int colNum,int rowNum){ try{ if(rowNum <=0) return ""; int index = workbook.getSheetIndex(sheetName); if(index==-1) return ""; sheet = workbook.getSheetAt(index); row = sheet.getRow(rowNum-1); if(row==null) return ""; cell = row.getCell(colNum); if(cell==null) return ""; if(cell.getCellType()==Cell.CELL_TYPE_STRING) return cell.getStringCellValue(); else if(cell.getCellType()==Cell.CELL_TYPE_NUMERIC || cell.getCellType()==Cell.CELL_TYPE_FORMULA ){ String cellText = String.valueOf(cell.getNumericCellValue()); if (HSSFDateUtil.isCellDateFormatted(cell)) { // format in form of M/D/YY double d = cell.getNumericCellValue(); Calendar cal =Calendar.getInstance(); cal.setTime(HSSFDateUtil.getJavaDate(d)); cellText = (String.valueOf(cal.get(Calendar.YEAR))).substring(2); cellText = cal.get(Calendar.MONTH)+1 + "/" + cal.get(Calendar.DAY_OF_MONTH) + "/" + cellText; } return cellText; }else if(cell.getCellType()==Cell.CELL_TYPE_BLANK) return ""; else return String.valueOf(cell.getBooleanCellValue()); } catch(Exception e){ e.printStackTrace(); return "row "+rowNum+" or column "+colNum +" does not exist in xls"; } } // returns true if data is set successfully else false public boolean setCellData(String sheetName,String colName,int rowNum, String data){ try{ fis = new FileInputStream(path); workbook = new XSSFWorkbook(fis); if(rowNum<=0) return false; int index = workbook.getSheetIndex(sheetName); int colNum=-1; if(index==-1) return false; sheet = workbook.getSheetAt(index); row=sheet.getRow(0); for(int i=0;i<row.getLastCellNum();i++){ //System.out.println(row.getCell(i).getStringCellValue().trim()); if(row.getCell(i).getStringCellValue().trim().equals(colName)) colNum=i; } if(colNum==-1) return false; sheet.autoSizeColumn(colNum); row = sheet.getRow(rowNum-1); if (row == null) row = sheet.createRow(rowNum-1); cell = row.getCell(colNum); if (cell == null) cell = row.createCell(colNum); cell.setCellValue(data); fileOut = new FileOutputStream(path); workbook.write(fileOut); fileOut.close(); } catch(Exception e){ e.printStackTrace(); return false; } return true; }// returns true if data is set successfully else false public boolean setCellData(String sheetName,String colName,int rowNum, String data,String url){ try{ fis = new FileInputStream(path); workbook = new XSSFWorkbook(fis); if(rowNum<=0) return false; int index = workbook.getSheetIndex(sheetName); int colNum=-1; if(index==-1) return false; sheet = workbook.getSheetAt(index); row=sheet.getRow(0); for(int i=0;i<row.getLastCellNum();i++){ if(row.getCell(i).getStringCellValue().trim().equalsIgnoreCase(colName)) colNum=i; } if(colNum==-1) return false; sheet.autoSizeColumn(colNum); row = sheet.getRow(rowNum-1); if (row == null) row = sheet.createRow(rowNum-1); cell = row.getCell(colNum); if (cell == null) cell = row.createCell(colNum); cell.setCellValue(data); XSSFCreationHelper createHelper = workbook.getCreationHelper(); //cell style for hyperlinks CellStyle hlink_style = workbook.createCellStyle(); XSSFFont hlink_font = workbook.createFont(); hlink_font.setUnderline(XSSFFont.U_SINGLE); hlink_font.setColor(IndexedColors.BLUE.getIndex()); hlink_style.setFont(hlink_font); //hlink_style.setWrapText(true); XSSFHyperlink link = createHelper.createHyperlink(XSSFHyperlink.LINK_FILE); link.setAddress(url); cell.setHyperlink(link); cell.setCellStyle(hlink_style); fileOut = new FileOutputStream(path); workbook.write(fileOut); fileOut.close(); } catch(Exception e){ e.printStackTrace(); return false; } return true; } // returns true if sheet is created successfully else false public boolean addSheet(String sheetname){ FileOutputStream fileOut; try { workbook.createSheet(sheetname); fileOut = new FileOutputStream(path); workbook.write(fileOut); fileOut.close(); } catch (Exception e) { e.printStackTrace(); return false; } return true; } // returns true if sheet is removed successfully else false if sheet does not exist public boolean removeSheet(String sheetName){ int index = workbook.getSheetIndex(sheetName); if(index==-1) return false; FileOutputStream fileOut; try { workbook.removeSheetAt(index); fileOut = new FileOutputStream(path); workbook.write(fileOut); fileOut.close(); } catch (Exception e) { e.printStackTrace(); return false; } return true; } // returns true if column is created successfully public boolean addColumn(String sheetName,String colName){ try{ fis = new FileInputStream(path); workbook = new XSSFWorkbook(fis); int index = workbook.getSheetIndex(sheetName); if(index==-1) return false; XSSFCellStyle style = workbook.createCellStyle(); style.setFillForegroundColor(HSSFColor.GREY_40_PERCENT.index); style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); sheet=workbook.getSheetAt(index); row = sheet.getRow(0); if (row == null) row = sheet.createRow(0); if(row.getLastCellNum() == -1) cell = row.createCell(0); else cell = row.createCell(row.getLastCellNum()); cell.setCellValue(colName); cell.setCellStyle(style); fileOut = new FileOutputStream(path); workbook.write(fileOut); fileOut.close(); }catch(Exception e){ e.printStackTrace(); return false; } return true; }// removes a column and all the contents public boolean removeColumn(String sheetName, int colNum) { try{ if(!isSheetExist(sheetName)) return false; fis = new FileInputStream(path); workbook = new XSSFWorkbook(fis); sheet=workbook.getSheet(sheetName); XSSFCellStyle style = workbook.createCellStyle(); style.setFillForegroundColor(HSSFColor.GREY_40_PERCENT.index); XSSFCreationHelper createHelper = workbook.getCreationHelper(); style.setFillPattern(HSSFCellStyle.NO_FILL); for(int i =0;i<getRowCount(sheetName);i++){ row=sheet.getRow(i); if(row!=null){ cell=row.getCell(colNum); if(cell!=null){ cell.setCellStyle(style); row.removeCell(cell); } } } fileOut = new FileOutputStream(path); workbook.write(fileOut); fileOut.close(); } catch(Exception e){ e.printStackTrace(); return false; } return true; } // find whether sheets exists public boolean isSheetExist(String sheetName){ int index = workbook.getSheetIndex(sheetName); if(index==-1){ index=workbook.getSheetIndex(sheetName.toUpperCase()); if(index==-1) return false; else return true; } else return true; } // returns number of columns in a sheet public int getColumnCount(String sheetName){ // check if sheet exists if(!isSheetExist(sheetName)) return -1; sheet = workbook.getSheet(sheetName); row = sheet.getRow(0); if(row==null) return -1; return row.getLastCellNum(); } //String sheetName, String testCaseName,String keyword ,String URL,String message public boolean addHyperLink(String sheetName,String screenShotColName,String testCaseName,int index,String url,String message){ url=url.replace('\\', '/'); if(!isSheetExist(sheetName)) return false; sheet = workbook.getSheet(sheetName); for(int i=2;i<=getRowCount(sheetName);i++){ if(getCellData(sheetName, 0, i).equalsIgnoreCase(testCaseName)){ setCellData(sheetName, screenShotColName, i+index, message,url); break; } } return true; } public int getCellRowNum(String sheetName,String colName,String cellValue){ for(int i=2;i<=getRowCount(sheetName);i++){ if(getCellData(sheetName,colName , i).equalsIgnoreCase(cellValue)){ return i; } } return -1; } // to run this on stand alone public static void main(String arg[]) throws IOException{ ExcelReader datatable = null; datatable = new ExcelReader("C:\\CM3.0\\app\\test\\Framework\\AutomationBvt\\src\\config\\xlfiles\\Controller.xlsx"); for(int col=0 ;col< datatable.getColumnCount("TC5"); col++){ System.out.println(datatable.getCellData("TC5", col, 1)); } } } 

Answer 3

 package testng; import java.util.Hashtable; import org.testng.annotations.DataProvider; import org.testng.annotations.Test; public class testNGParameterizationExcel { public static ExcelReader excel = null; @Test(dataProvider = "getData") public void testData(Hashtable<String, String> data) { // System.out.println(username + "---------" + password + "------------" // + is_correct); System.out.println(data.get("UserName")); } @DataProvider public static Object[][] getData() { if (excel == null) { excel = new ExcelReader("C:\\Users\\shaanu\\Desktop\\Java\\Test.xlsx"); } String sheetName = "new"; int rows = excel.getRowCount(sheetName); int columns = excel.getColumnCount(sheetName); Object[][] data = new Object[rows - 1][1]; Hashtable<String, String> table = null; for (int rowNums = 2; rowNums <= rows; rowNums++) { table = new Hashtable<String, String>(); for (int colNum = 0; colNum < columns; colNum++) { // data[rowNums-2][colNum] = excel.getCellData(sheetName, // colNum, rowNums); table.put(excel.getCellData(sheetName, colNum, 1), excel.getCellData(sheetName, colNum, rowNums)); data[rowNums - 2][0] = table; } } return data; } }