Java生成Excel加密

Java生成Excel加密文件

导入poi包

<!-- POI -->  
	<dependency>  
	    <groupId>org.apache.poi</groupId>  
	    <artifactId>poi</artifactId>  
	    <version>3.17</version>  
	</dependency>  
	<dependency>  
	    <groupId>org.apache.poi</groupId>  
	    <artifactId>poi-ooxml</artifactId>  
	    <version>3.17</version>  
	</dependency>

实现的Java类

package xlsxCreateAndJiami;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.openxml4j.opc.PackageAccess;
import org.apache.poi.poifs.crypt.EncryptionInfo;
import org.apache.poi.poifs.crypt.EncryptionMode;
import org.apache.poi.poifs.crypt.Encryptor;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class XlsxCreate {
	public static void main(String[] args) {
			XlsxCre();
}

	@SuppressWarnings("resource")
	public static void XlsxCre() {
		String filename="D:\\TestCreate.xlsx";

		XSSFWorkbook workbook = new XSSFWorkbook();
		Sheet sheet = workbook.createSheet("sheet"+1);
		Row headRow=sheet.createRow(0);
		headRow.createCell(0).setCellValue("one");
		headRow.createCell(1).setCellValue("two");
		headRow.createCell(2).setCellValue("three");
		headRow.createCell(3).setCellValue("four");

		Row firstRow=sheet.createRow(1);
		firstRow.createCell(0).setCellValue("1");
		firstRow.createCell(1).setCellValue("2");
		firstRow.createCell(2).setCellValue("3");
		firstRow.createCell(3).setCellValue("4");

		FileOutputStream fos=null;
		try {
			//保存此XSSFWorkbook对象为xlsx文件
			workbook.write(new FileOutputStream(filename));

			POIFSFileSystem fs = new POIFSFileSystem();
			EncryptionInfo info = new EncryptionInfo(EncryptionMode.standard);
			Encryptor enc = info.getEncryptor();
			//设置密码
			enc.confirmPassword("zmf");
			//加密文件
			OPCPackage opc = OPCPackage.open(new File(filename), PackageAccess.READ_WRITE);
			OutputStream os = enc.getDataStream(fs);
			opc.save(os);
			opc.close();

			//把加密后的文件写回到流
			fos = new FileOutputStream(filename);
			fs.writeFilesystem(fos);
			
			fos.flush();
		}catch (Exception e) {
			e.printStackTrace();
		}finally {
			try {
				fos.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		System.out.println("over");

	}


	

}