Forum Discussion

Don's avatar
8 years ago

Opening and updateing an excel sheet using jxl

Hello,   I am working using the following code example but I am unable to get it to work.   import jxl.*; import jxl.write.*; import*; public class CreateExcel_JxlApi {     public st...
  • Don's avatar
    8 years ago

    I found a solution to the problem.


    First I switched to Apache POI. It's similar to jxl but has more support and is constantly updated.


    With POI, in order to update get your desired results (at least from what I'm seeing) you would have to upload the file you want to update and create a copy of the file. The reason this happens is because the system locks the first while. When I was doing this with jxl, the whole file would overwrite any data that was in the file and wouldn't output my desired results.


    Here is some sample code that I found that works for me.



    FileInputStream fsIP= new FileInputStream(new File("C:/FileLocation/Excel.xls")); //Read the spreadsheet that needs to be updated
                    HSSFWorkbook wb = new HSSFWorkbook(fsIP); //Access the workbook
                    HSSFSheet worksheet = wb.getSheetAt(6); //Access the worksheet, so that we can update / modify it.
       def response=context.expand('${RESTAPI#Response}')
       def i = (context.expand('${RESTAPI#Order}')).toInteger()
       def json = new JsonSlurper().parseText(response)
                    //Cell cell = null; // declare a Cell object
                    cell = worksheet.getRow(i).getCell(14);   // Access the second cell in second row to update the value
                    cell.setCellValue(a);  // Get current cell value value and overwrite the value
                    cell = worksheet.getRow(i).getCell(15);
                    cell = worksheet.getRow(i).getCell(16);
                    fsIP.close(); //Close the InputStream
                    FileOutputStream output_file =new FileOutputStream(new File("C:/FileLocation/File2.xls"));  //Open FileOutputStream to write updates
                    wb.write(output_file); //write changes
                    output_file.close();  //close the stream



    I ran into another issue though. During a DataSource Loop, the file only writes it to one line when I have multiple. I will look for a solution and post it here once I find it for those who are looking for the same.


    I'm new to Groovy and Ready API so I'm learning this as I go.