如何使用Apache POI获取java中各行excel表的最后一列值

Question

i have following excel sheet

id     JobId     Name      Dept        Add       Salary
101      41      Bob     Editing    New York     $ 5000 

i am passing id,jobid as request parameter to servlet from $.ajax() method. i want to get salary cell data of excel sheet by matching request parameters ie id and jobid with excel sheet contents and insert it other table. How to do this?

here is my code...

   FileInputStream file = new FileInputStream(fileToBeRead);
   workbook = new HSSFWorkbook(file);
   int jobid = Integer.ParseInt(request.getParameter("jobid"));

          if (id == 101) {
             // get first sheet 
               HSSFSheet sheet = workbook.getSheetAt(0);
               Iterator<Row> rowIterator = sheet.iterator();
               statement = conn.createStatement() ;
               ResultSet resultset = statement.executeQuery("Select job_id,Job,Name, Deptname from Emp,Department where Department.job_id=" + jobid + " AND Emp.Id=" + id + " ");

                while (resultset.next()) { 

                   //how to match database result with excel records and save to other table



                }//resultset.next() ends here...

            resultset.close();
        }

i try to do like this......? for eg but it gives error i am trying to match id=101 and Add=New York for eg and want to get salary data. if use if(data[i][j].equalsIgnoreCase("101")) condition it works but i want to match both id and Address ie if(data[i][j].equalsIgnoreCase("101") && data[i][j+5].equalsIgnoreCase("New York")) it gives error

    int rowNum = sheet.getLastRowNum() + 1;
    int colNum = sheet.getRow(0).getLastCellNum();
    String[][] data = new String[rowNum][colNum];
   // System.out.println("Row No :"+rowNum +" \nCol no:"+colNum);

    for (int i = 1; i < rowNum; i++) {
        Row row = sheet.getRow(i);
        for (int j = 0; j < colNum; j++) {
            Cell cell = row.getCell(j);
            String value = null;
            double price;
           // int type = cell.getCellType();

            value = cell.getStringCellValue();

                    data[i][j] = value;
                    if(data[i][j].equalsIgnoreCase("101") && data[i][j+4].equalsIgnoreCase("New York"))
                        {
                            Cell lastCellInRow = row.getCell(row.getLastCellNum() - 1);
                            System.out.println(lastCellInRow.getStringCellValue());

                    }

        }
    }

Answer 1

If you're simply trying to get access to the last cell in a row, and you have a Row , try the following:

Cell lastCellInRow = row.getCell(row.getLastCellNum() - 1); // -1 because #s are 0-based

EDIT To address your updated question and the comments below. This code should do what you're looking for without going through the rigmarole of converting the entire spreadsheet into a 2D array, which is frankly terribly inefficient when you have access to all the data right at your fingertips.

for (int i = 1; i < rowNum; i++) {
  Row row = sheet.getRow(i);
  Cell cell1 = row.getCell(0);
  Cell cell2 = row.getCell(4);
  String id = cell1.getStringCellValue();
  String city = cell2.getStringCellValue();

  if(id.equalsIgnoreCase("101") && city.equalsIgnoreCase("New York")) {
    Cell lastCellInRow = row.getCell(row.getLastCellNum() - 1);
    System.out.println(lastCellInRow.getStringCellValue());
  }
}