Question

我需要在xls文件或csv文件中编写测试用例名称和结果。我已经使用了现有文件并将结果写入现有文件，它在行 * cell = row.getCell（0）上返回NULL指针异常; *

在下面我的代码..

  package com.testCases;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;

import com.test.utility.PrintResultinExcel;
import com.test.utility.ReadExcelSheet;
import com.test.utility.clearText;
import com.test.utility.clickEvent;
import com.test.utility.globalVariables;
import com.test.utility.selectCheckbox;
import com.test.utility.text;
import com.test.utility.verifyText;
import com.test.utility.writeExcel;

public class SQLInject extends globalVariables{
    public static void sqlinjection() throws InterruptedException, IOException{
        ArrayList<HashMap> data = ReadExcelSheet.readExcel("Sheet1");
        int size = data.size();     
        System.out.println("Total Number of Keywords: "+size);      
        for(int i=0;i<=size-1;i++){
        clickEvent.clickAt("allcustomers_linkText");
        Thread.sleep(2000);
        clickEvent.clickAt("sqlquery_xpath");       
        Thread.sleep(2000);
        String keyword = data.get(i).get("Keywords").toString();
        text.enterText("sql_id", keyword);
        clickEvent.clickAt("sqlsearchbutton_id");
        verifyText.verify("SQL statement does NOT contain valid  keywords.");
        String result="PASS";   
        PrintResultinExcel.excelLog(keyword, result, i);
        }
    }

}

实用程序文件：

package com.test.utility;

import java.io.File;
import java.io.FileInputStream;
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;
import org.apache.poi.ss.usermodel.Cell;

public class PrintResultinExcel extends globalVariables {


    public static void excelLog(String keyword, String result, int rowNum) {
        try {
            FileInputStream file = new FileInputStream(new File("D:\\testexcel.xls"));

            HSSFWorkbook workbook = new HSSFWorkbook(file);
            HSSFSheet sheet = workbook.getSheetAt(0);
            // Find empty cell
            HSSFRow row = sheet.getRow(rowNum);
            Cell cell = null;
            cell=row.getCell(0);
            cell.setCellValue(keyword);
            cell=row.getCell(1);
            cell.setCellValue(result);
            // Update the value of cell

            file.close();

            FileOutputStream outFile = new FileOutputStream(new File("D:\\testexcel.xls"));
            workbook.write(outFile);
            outFile.close();

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    }

Answer 1

将数据添加到WorkBook并将其保留在内存中。完成数据添加后，将其写入文件。

示例代码

package com.test.utility;

import java.io.FileOutputStream;

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 extends globalVariables {

    private static String dest = "D:\\testexcel.xls";
    private static HSSFWorkbook myWorkBook = new HSSFWorkbook();
    private static HSSFSheet mySheet = myWorkBook.createSheet();

    public static void excelLog(String keyword, String result, int rowNum) {

        HSSFRow myRow = null;
        HSSFCell myCell = null;

        myRow = mySheet.createRow(rowNum);

        myCell = myRow.createCell(0);
        myCell.setCellValue(keyword);
        myCell = myRow.createCell(1);
        myCell.setCellValue(result);
    }

    public static void main(String[] args) {
        for (int i = 1;i <= 100;i++) {
            excelLog("Exec" + i, "PASS" + i, i);
        }

        try {
            FileOutputStream out = new FileOutputStream(dest);
            myWorkBook.write(out);
            out.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

修改

文件/ workBook / Sheet / row / cell可能不存在。因此有必要处理所有案件。

查看HSSFSheet.getRow(int rowNum)。
的文档
以下是执行相同操作的更新代码：

package com.test.utility; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; 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.ss.usermodel.Cell; public class writeExcel { public static void main(String[] args) { for (int i = 0; i < 100; i++) { excelLog("Exec" + i, "PASS" + i, i); } } public static void excelLog(String keyword, String result, int rowNum) { String fileName = "testexcel.xls"; try { File f = new File(fileName); HSSFWorkbook workbook = getWorkBook(f); HSSFSheet sheet = getSheet(workbook); HSSFRow row = getRow(sheet, rowNum); // Find empty cell Cell cell = null; cell = getCell(row, 0); cell.setCellValue(keyword); cell = getCell(row, 1); cell.setCellValue(result); // Update the value of cell workbook.close(); FileOutputStream outFile = new FileOutputStream(new File(fileName)); workbook.write(outFile); outFile.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } private static Cell getCell(HSSFRow row, int cellNum) { Cell cell = row.getCell(cellNum); if (cell == null) { cell = row.createCell(cellNum); } return cell; } private static HSSFRow getRow(HSSFSheet sheet, int rowNum) { HSSFRow row = sheet.getRow(rowNum); if (row == null) { row = sheet.createRow(rowNum); } return row; } private static HSSFSheet getSheet(HSSFWorkbook workbook) { HSSFSheet sheet = null; try { sheet = workbook.getSheetAt(0); } catch (Exception e) { sheet = workbook.createSheet(); } return sheet; } private static HSSFWorkbook getWorkBook(File f) throws IOException { FileInputStream file = null; HSSFWorkbook workbook = null; if (f.exists()) { file = new FileInputStream(f); workbook = new HSSFWorkbook(file); } else { workbook = new HSSFWorkbook(); } return workbook; } }

Answer 2

我可以更新现有工作表。

   public class writeExcel extends globalVariables {
        public static void write(int row, int column, String result) throws InvalidFormatException {


            try {
                InputStream inp = new FileInputStream("/SQLInjection.xlsx");
                org.apache.poi.ss.usermodel.Workbook wb = WorkbookFactory.create(inp);
                Sheet sheet = wb.getSheet("Results");
              //  Sheet sheet = wb.getSheet(0);
                Row sheetRow = sheet.getRow(row);
                Cell cell = sheetRow.getCell(column);
                if (cell == null) {
                    cell = sheetRow.createCell(column);
                    cell.setCellType(Cell.CELL_TYPE_STRING);
                }
                cell.setCellType(Cell.CELL_TYPE_STRING);
                cell.setCellValue(result);
                FileOutputStream fileOut = new FileOutputStream("/SQLInjection.xlsx");
                wb.write(fileOut);
                fileOut.close();
              //  System.out.println("Results updated in Excel Sheet");

            } catch (IOException ex) {

            } 
        }
     /*  public static void main(String[] args) throws BiffException, IOException, InvalidFormatException {
            for (int i = 1;i <= 10;i++) {
                //excelLog("Exec" + i, "PASS" + i, i);
                System.out.println("Test");
                write(i,1,"Test", "PASS");
            } 
       }*/
    }

需要在Xls中写入结果

2 个答案: