The jxl and poi in java realize reading, modifying and saving excel

Java implements reading excel and modifying part of the content and finally writing it to a new file

pom.xml introduces related jxl.jar and poi.jar

pom file is as follows

<dependencies>
		<!-- https://mvnrepository.com/artifact/net.sourceforge.jexcelapi/jxl -->
		<dependency>
		    <groupId>net.sourceforge.jexcelapi</groupId>
		    <artifactId> jxl </artifactId>
		    <version>2.6.12</version>
		</dependency>
		<!-- https://mvnrepository.com/artifact/org.apache.poi/poi -->
		<dependency>
			<groupId>org.apache.poi</groupId>
			<artifactId>poi</artifactId>
			<version>3.17</version>
		</dependency>
    </dependencies>

The specific code of java implementation is as follows:

package Util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFComment;
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.util.CellAddress;

import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
import jxl.write.Label;
import jxl.write.WritableCell;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;

public class ExcelHandler {
	/**
	 * jxl read file
	 *workbook is a read-only file that can read the content
	 * @throws BiffException
	 * @throws IOException
	 */
	public static void ExcelReader(){
		File file=new File("C:\\Users\\Administrator\\Desktop\\excels\\example.xls");
		Workbook workbook;
		try {
			workbook = Workbook.getWorkbook(file);
			Sheet sheet=workbook.getSheet(0);
			Cell cell=sheet.getCell(2, 1);
			Cell cell1=sheet.getCell(2, 1);
			Cell cell2=sheet.getCell(2, 1);
			Cell cell3=sheet.getCell(2, 1);
			System.out.println(cell.getContents());
		} catch (BiffException | IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace ();
		}
	}
	/**‘
	 * jxl realizes excel read and output
	 * Re-output after reading excel modification
	 */
	public static void ModifyExcelAndOutput() {
		try {
			File file=new File("C:\\Users\\Administrator\\Desktop\\excels\\example.xls");
			//The workbook read here is used as a template
			Workbook workbook=Workbook.getWorkbook(file);
			//here is the workbook that will be output
			for(int i=0;i<2;i++){//This simulation outputs two files
				// output file name
				String outFileName="C:\\Users\\Administrator\\Desktop\\excels\\output"+i+".xls";
				// The jxl.Workbook object is read-only, so if you want to modify Excel, you need to create a readable copy that points to the original Excel file (ie new File(excelpath) below)  
				//WritableWorkbook will overwrite the original file if the directly createWorkbook template file
				WritableWorkbook writeBook=Workbook.createWorkbook(new File(outFileName),workbook);
				//read the first sheet
				WritableSheet sheet=writeBook.getSheet(0);
				//Read the cell to be modified
				WritableCell cell=sheet.getWritableCell(2, 1);
				//Get the format of the previous cell
				jxl.format.CellFormat cf = cell.getCellFormat ();
				Label lable=new Label(2, 1, "Business Name: Modified Business Name"+i);
				//Set the format of the modified cell to the same as the original
				lable.setCellFormat(cf);
				// Put the modified cell back into the sheet
				sheet.addCell(lable);
				writeBook.write();
				writeBook.close();
			}
			workbook.close();
		} catch (Exception e) {
			e.printStackTrace ();
		}
	}
	/**
	 * Poi realizes excel modification
	 * Read excel and modify some content and output
	 */
	public static void ModifyAndExport() {
		InputStream io;
		try {
			io = new FileInputStream(new File("C:\\Users\\Administrator\\Desktop\\excels\\output0.xls"));
			HSSFWorkbook workbook = new HSSFWorkbook(io);
			HSSFSheet sheet=workbook.getSheetAt(0);
			for(int i=2;i<5;i++){
				HSSFRow row=sheet.getRow(4);
				HSSFCell cell=row.getCell(0);
				cell.setCellValue("Contact Name: Wang"+i+"Mazi");
				HSSFCell cell1=row.getCell(3);
				cell1.setCellValue("手机："+i+"10110");
				String outputPath="C:\\Users\\Administrator\\Desktop\\excels\\output"+i+".xls";
				FileOutputStream fo=new FileOutputStream(new File(outputPath));
				workbook.write(fo);
			}
			workbook.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace ();
		}
		
	}
	public static void main(String[] args) {
		ModifyAndExport();
	}
}