Apache POI, CREATE_NULL_AS_BLANK verursacht Fehler

Question

Im Moment befolge ich ein Tutorial zum Schreiben von Data Driven Tests in Java. Meine IDE ist IntelliJ Community Edition und folgende ist mein Code

package utility; 

import config.Constants; 
import executionEngine.DriverScript; 
import org.apache.poi.ss.usermodel.Row; 
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; 

import java.io.FileInputStream; 
import java.io.FileOutputStream; 

public class ExcelUtils { 
    private static XSSFSheet ExcelWSheet; 
    private static XSSFWorkbook ExcelWBook; 
    private static XSSFCell Cell; 
    private static XSSFRow Row; 

    //This method is to set the File path and to open the Excel File 
    //Pass Excel Path and Sheet Name as Arguments to this method 
    public static void setExcelFile(String Path) throws Exception { 
     try { 
      FileInputStream ExcelFile = new FileInputStream(Path); 
      ExcelWBook = new XSSFWorkbook(ExcelFile); 
     }catch(Exception e){ 
      Log.error("Class Utils | Method setExcelFile | Exception desc: " + e.getMessage()); 
      DriverScript.bResult = false; 
     } 
    } 

    @SuppressWarnings("static-access") 
    //This method is used to write value in the excel sheet 
    //This method accepts four arguments (Result, Row Number, Column Number, Sheet Name) 
    public static void setCellData(String Result, int RowNum, int ColNum, String SheetName) throws Exception{ 
     try{ 
      ExcelWSheet = ExcelWBook.getSheet(SheetName); 
      Row = ExcelWSheet.getRow(RowNum); 

      // CHECK IF ERRORS HAPPEN AFTER THIS!!!!!!!!!!!!!!!! 
      Cell = Row.getCell(ColNum, Row.CREATE_NULL_AS_BLANK); 


      if(Cell == null){ 
       Cell = Row.createCell(ColNum); 
       Cell.setCellValue(Result); 
      }else{ 
       Cell.setCellValue(Result); 
      } 
      //Constant variables Test Data path and Test Data file name 
      FileOutputStream fileOut = new FileOutputStream(Constants.Path_TestData); 
      ExcelWBook.write(fileOut); 
      //fielOut.flush(); 
      fileOut.close(); 
      ExcelWBook = new XSSFWorkbook(new FileInputStream(Constants.Path_TestData)); 
     }catch(Exception e){ 
      DriverScript.bResult = false; 
     } 
    } 

    //This method is to read the test data from the Excel cell 
    //In this we are passing Arguments as Row Num, Col Num & Sheet Name 
    public static String getCellData(int RowNum, int ColNum, String SheetName) throws Exception{ 
     try{ 
      ExcelWSheet = ExcelWBook.getSheet(SheetName); 
      Cell = ExcelWSheet.getRow(RowNum).getCell(ColNum); 
      String CellData = Cell.getStringCellValue(); 
      return CellData; 
     }catch(Exception e){ 
      Log.error("Class Utils | Method getCellData | Exception desc: " + e.getMessage()); 
      DriverScript.bResult = false; 
      return ""; 
     } 
    } 

    //This method id to get the row count used of the excel sheet 
    public static int getRowCount(String SheetName){ 
     int iNumber = 0; 
     try { 
      ExcelWSheet = ExcelWBook.getSheet(SheetName); 
      iNumber = ExcelWSheet.getLastRowNum()+1; 
     }catch(Exception e){ 
      Log.error("Class Utils | Method getRowCount | Exception desc: " + e.getMessage()); 
      DriverScript.bResult = false; 
     } 
     return iNumber; 
    } 

    //This method is to get the Row number of the test case 
    //This method takes three arguments(Test Case Name, Column Number & Sheet name) 
    public static int getRowContains(String sTestCaseName, int colNum, String SheetName) throws Exception{ 
     int iRowNum = 0; 
     try{ 
      //ExcelWSheet = ExcelWBook.getSheet(SheetName); 
      int rowCount = ExcelUtils.getRowCount(SheetName); 
      for(; iRowNum<rowCount; iRowNum++){ 
       if(ExcelUtils.getCellData(iRowNum, colNum, SheetName).equalsIgnoreCase(sTestCaseName)){ 
        break; 
       } 
      } 
     }catch(Exception e){ 
      Log.error("Class Utils | Method getRowContains | Exception desc: " + e.getMessage()); 
      DriverScript.bResult = false; 
     } 
     return iRowNum; 
    } 

    //This method is to get the count of the test steps of test case 
    //This method takes three arguments (Sheet name, Test Case ID & Test case row number) 
    public static int getTestStepsCount(String SheetName, String sTestCaseID, int iTestCaseStart) throws Exception{ 
     try{ 
      for(int i=iTestCaseStart; i<=ExcelUtils.getRowCount(SheetName); i++){ 
       if(!sTestCaseID.equals(ExcelUtils.getCellData(i, Constants.Col_TestCaseID, SheetName))){ 
        int number = i; 
        return number; 
       } 
      } 
      ExcelWSheet = ExcelWBook.getSheet(SheetName); 
      int number = ExcelWSheet.getLastRowNum()+1; 
      return number; 
     }catch(Exception e){ 
      Log.error("Class Utils | Method getTestStepsCount | Exception desc: " + e.getMessage()); 
      DriverScript.bResult = false; 
      return 0; 
     } 
    } 
} 

Mein Problem ist jetzt die folgenden Teil:

public static void setCellData(String Result, int RowNum, int ColNum, String SheetName) throws Exception{ 
    try{ 
     ExcelWSheet = ExcelWBook.getSheet(SheetName); 
     Row = ExcelWSheet.getRow(RowNum); 

     // CHECK IF ERRORS HAPPEN AFTER THIS!!!!!!!!!!!!!!!! 
     Cell = Row.getCell(ColNum, Row.CREATE_NULL_AS_BLANK); 

Ich weiß nicht, was jetzt zu tun ... CREATE_NULL_AS_BLANK ist rot markiert und sagt "Kann Symbol nicht auflösen" und jeder Schritt von meinem datengetriebenen Framework schlägt fehl.

Ich versuchte es mit

org.apache.poi.ss.usermodel.Row.MissingCellPolicy.CREATE_NULL_AS_BLANK; 

Mit diesem Code verwende ich meinen Code ausführen kann, aber mein Framework unterstützt nur den ersten Schritt vor

Hier Brech ist mein Log

2017-10-16 13:19:50,093 INFO [Log] **************************************************************************************** 
2017-10-16 13:19:50,093 INFO [Log] **************************************************************************************** 
2017-10-16 13:19:50,093 INFO [Log] $$$$$$$$$$$$$$$$$$$$$     Wikipedia_01  $$$$$$$$$$$$$$$$$$$$$$$$$ 
2017-10-16 13:19:50,093 INFO [Log] **************************************************************************************** 
2017-10-16 13:19:50,093 INFO [Log] **************************************************************************************** 
2017-10-16 13:19:50,094 ERROR [Log] Class Utils | Method getCellData | Exception desc: null 
2017-10-16 13:19:50,094 INFO [Log] Opening Browser 
2017-10-16 13:19:53,388 INFO [Log] Closing the browser 
2017-10-16 13:19:54,069 INFO [Log] XXXXXXXXXXXXXXXXXXXXXXX    -E---N---D-    XXXXXXXXXXXXXXXXXXXXXX 
2017-10-16 13:19:54,069 INFO [Log] X 
2017-10-16 13:19:54,069 INFO [Log] X 
2017-10-16 13:19:54,069 INFO [Log] X 
2017-10-16 13:19:54,069 INFO [Log] X 

Ich hoffe, jemand kann mir helfen, dieses Problem zu lösen, weil es mich verrückt macht.

Edit: Bevor ich den "setCellData" -Teil hinzufügte, funktionierte das Framework einwandfrei und jeder Schritt wurde fehlerfrei ausgeführt. Der Fehler ist direkt danach aufgetreten

Answer 1

Ersetzen Sie Ihre Row.CREATE_NULL_AS_BLANK durch Row.MissingCellPolicy.CREATE_NULL_AS_BLANK.

und nutzen Sie Ihre "normalen" Import (zum Beispiel: import org.apache.poi.ss.usermodel.Row;)

I v3.14 wurde mit, es aktualisiert V3.17 und bekam den gleichen Fehler. Irgendwo zwischen diesen Versionen wurde das CREATE_NULL_AS_BLANK in eine MissingCellPolicy-Enumeration gepackt, daher der Fehler.