/Java/Deal with empty or blank cell in excel file using apache poi

Deal with empty or blank cell in excel file using apache poi

package com.roytuts.java.apache.poi.excel.deal.empty.blank.cell;

public class Info {

	private String name;
	private String mobile;
	private String phone;
	private String permAddress;
	private String commAddress;

	//getters and setters

	@Override
	public String toString() {
		return "Info [name=" + name + ", mobile=" + mobile + ", phone=" + phone + ", permAddress=" + permAddress
				+ ", commAddress=" + commAddress + "]";
	}

}

Source: roytuts.com

Deal with empty or blank cell in excel file using apache poi

mobileCell.setCellType(Cell.CELL_TYPE_STRING);
info.setMobile(mobileCell.getStringCellValue());

Source: roytuts.com

Deal with empty or blank cell in excel file using apache poi

package com.roytuts.java.apache.poi.excel.deal.empty.blank.cell;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.util.NumberToTextConverter;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public final class ExcelUtil {

	private ExcelUtil() {
	}

	public static List<Info> extractInfo(final String file) {
		List<Info> infoList = new ArrayList<Info>();
		Workbook wb = null;

		try {
			wb = new XSSFWorkbook(new FileInputStream(new File(file)));
			Sheet sheet = wb.getSheetAt(0);

			boolean skipHeader = true;

			for (Row row : sheet) {
				if (skipHeader) {
					skipHeader = false;
					continue;
				}

				List<Cell> cells = new ArrayList<Cell>();

				int lastColumn = Math.max(row.getLastCellNum(), 5);// because my
																	// excel
																	// sheet has
																	// max 5
																	// columns,
																	// in case
																	// last
																	// column is
																	// empty
																	// then
																	// row.getLastCellNum()
																	// will
																	// return 4
				for (int cn = 0; cn < lastColumn; cn++) {
					Cell c = row.getCell(cn, Row.MissingCellPolicy.RETURN_BLANK_AS_NULL);
					cells.add(c);
				}

				Info info = extractInfoFromCell(cells);
				infoList.add(info);
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if (wb != null) {
				try {
					wb.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}

		return infoList;
	}

	private static Info extractInfoFromCell(List<Cell> cells) {
		Info info = new Info();

		Cell nameCell = cells.get(0);
		if (nameCell != null) {
			info.setName(nameCell.getStringCellValue());
		}

		Cell mobileCell = cells.get(1);
		if (mobileCell != null) {
			switch (mobileCell.getCellType()) {
			case NUMERIC:
				info.setMobile(NumberToTextConverter.toText(mobileCell.getNumericCellValue()));
				break;
			case BLANK:
				break;
			default:
				break;
			}
		}

		Cell phoneCell = cells.get(2);
		if (phoneCell != null) {
			switch (phoneCell.getCellType()) {
			case NUMERIC:
				info.setPhone(NumberToTextConverter.toText(phoneCell.getNumericCellValue()));
				break;
			case BLANK:
				break;
			default:
				break;
			}
		}

		Cell permAddressCell = cells.get(3);
		if (permAddressCell != null) {
			info.setPermAddress(permAddressCell.getStringCellValue());
		}

		Cell commAddressCell = cells.get(4);
		if (commAddressCell != null) {
			info.setCommAddress(commAddressCell.getStringCellValue());
		}

		return info;
	}

}

Source: roytuts.com

Deal with empty or blank cell in excel file using apache poi

package com.roytuts.java.apache.poi.excel.deal.empty.blank.cell;

import java.util.List;

public class BlankCellHandlerApp {

	public static void main(String[] args) {
		List<Info> infoList = ExcelUtil.extractInfo("info.xlsx");

		for (Info info : infoList) {
			System.out.println(info);
		}
	}

}

Source: roytuts.com

Deal with empty or blank cell in excel file using apache poi

//If you are using apache dependency version 3.12 then you need to handle different way. The switch case statement should be replaced in the following way for numeric cell types.

switch (mobileCell.getCellType()) {
case NUMERIC:
	info.setMobile(NumberToTextConverter.toText(mobileCell.getNumericCellValue()));
	break;
case BLANK:
	break;
default:
	break;
}

Source: roytuts.com

Similar codes

0 vote215 views1 answer
Fhow to find location of java jdk
Java
0 vote229 views1 answer
Spring boot return 201 created
Java
9 votes209 views4 answers
How to iterate over a string in java
Java
-1 vote229 views2 answers
Adminlte 3 laravel
Java
1 vote174 views1 answer
Java boolean null
Java
0 vote225 views1 answer
Intellij evaluate expression
Java
1 vote214 views2 answers
Java long to double
Java
1 vote222 views1 answer
Count vowels in a string java
Java
0 vote204 views2 answers
Java completablefuture chain 2 operations
Java
-1 vote247 views1 answer
Spring jpa group by query method
Java Spring