java中的jxl及poi實現讀取、修改、另存excel

java實現讀取excel並修改部分內容最終寫入到新的文件中

pom.xml引入相關的jxl.jar與poi.jar

pom文件如下

<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>
java實現具體代碼如下：

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讀取文件
*workbook為只讀文件 可以讀取內容
* @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實現excel讀取並輸出
* 讀取excel修改之后重新輸出
*/
public static void ModifyExcelAndOutput() {
try {
File file=new File("C:\\Users\\Administrator\\Desktop\\excels\\example.xls");
//這里讀出來的workbook作為模版
Workbook workbook=Workbook.getWorkbook(file);
//這里是將要輸出的workbook
for(int i=0;i<2;i++){//這里模擬輸出兩個文件
//輸出文件名
String outFileName="C:\\Users\\Administrator\\Desktop\\excels\\output"+i+".xls";
// jxl.Workbook 對象是只讀的，所以如果要修改Excel，需要創建一個可讀的副本，副本指向原Excel文件（即下面的new File(excelpath)）
//WritableWorkbook如果直接createWorkbook模版文件會覆蓋原有的文件
WritableWorkbook writeBook=Workbook.createWorkbook(new File(outFileName),workbook);
//讀取第一個sheet
WritableSheet sheet=writeBook.getSheet(0);
//讀取將要修改的cell
WritableCell cell=sheet.getWritableCell(2, 1);
//獲取上一部cell的格式
jxl.format.CellFormat cf=cell.getCellFormat();
Label lable=new Label(2, 1, "商戶名稱：修改后的商戶名"+i);
//將修改后的單元格格式設置成和原來一樣的
lable.setCellFormat(cf);
//將修改后的cell放回sheet中
sheet.addCell(lable);
writeBook.write();
writeBook.close();
}
workbook.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* poi實現excel修改
* 讀取excel並且修改部分內容並輸出
*/
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("聯系人姓名：王"+i+"麻子");
HSSFCell cell1=row.getCell(3);
cell1.setCellValue("手機："+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();
}