Java 压缩Excel文件生成.zip文件

首先创建文件目录，然后生成Excel文件到创建的目录下，

通过IO流压缩Excel文件成zip文件 到指定目录，最后删除指定目录下所有的Excel文件。

 

具体代码如下：

package pack.java.io.demo;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import jxl.Workbook;
import jxl.format.Alignment;
import jxl.format.Border;
import jxl.format.BorderLineStyle;
import jxl.format.Colour;
import jxl.format.UnderlineStyle;
import jxl.format.VerticalAlignment;
import jxl.write.Label;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;

/**
 * zip压缩文件实例
 * add by 周海涛
 * @author Administrator
 *
 */
public class ZipDemo {

	/**
	 * @param args
	 * @throws IOException 
	 * @throws WriteException 
	 * @throws RowsExceededException 
	 */
	public static void main(String[] args) throws RowsExceededException, WriteException, IOException {
		String path = "C:/document/excel";
		//创建文件夹;
		createFile(path);
		//创建Excel文件;
		createExcelFile(path);
		//生成.zip文件;
		craeteZipPath(path);
		//删除目录下所有的文件;
		File file = new File(path);
		//删除文件;
		deleteExcelPath(file);
		//重新创建文件;
		file.mkdirs();
	}
	
	/**
	 * 创建文件夹;
	 * @param path
	 * @return
	 */
	public static String createFile(String path){
		File file = new File(path);
		//判断文件是否存在;
		if(!file.exists()){
			//创建文件;
			boolean bol = file.mkdirs();
			if(bol){
				System.out.println(path+" 路径创建成功!");
			}else{
				System.out.println(path+" 路径创建失败!");
			}
		}else{
			System.out.println(path+" 文件已经存在!");
		}
		return path;
	}
	
	/**
	 * 在指定目录下创建Excel文件;
	 * @param path
	 * @throws IOException 
	 * @throws WriteException 
	 * @throws RowsExceededException 
	 */
	public static void createExcelFile(String path) throws IOException, RowsExceededException, WriteException{
		for(int i =0;i<3;i++){
			//创建Excel;
			WritableWorkbook workbook = Workbook.createWorkbook(new File(path+"/" + new SimpleDateFormat("yyyyMMddHHmmsss").format(new Date() )+"_"+(i+1)+".xls"));
			//创建第一个sheet文件;
			WritableSheet sheet = workbook.createSheet("导出Excel文件", 0);
			//设置默认宽度;
			sheet.getSettings().setDefaultColumnWidth(30);
			
			//设置字体;
			WritableFont font1 = new WritableFont(WritableFont.ARIAL,14,WritableFont.BOLD,false,UnderlineStyle.NO_UNDERLINE,Colour.RED);

			WritableCellFormat cellFormat1 = new WritableCellFormat(font1);
			//设置背景颜色;
			cellFormat1.setBackground(Colour.BLUE_GREY);
			//设置边框;
			cellFormat1.setBorder(Border.ALL, BorderLineStyle.DASH_DOT);
			//设置自动换行;
			cellFormat1.setWrap(true);
			//设置文字居中对齐方式;
			cellFormat1.setAlignment(Alignment.CENTRE);
			//设置垂直居中;
			cellFormat1.setVerticalAlignment(VerticalAlignment.CENTRE);
			//创建单元格
			Label label1 = new Label(0, 0, "第一行第一个单元格(测试是否自动换行!)",cellFormat1);
			Label label2 = new Label(1, 0, "第一行第二个单元格",cellFormat1);
			Label label3 = new Label(2, 0, "第一行第三个单元格",cellFormat1);
			Label label4 = new Label(3, 0, "第一行第四个单元格",cellFormat1);
			//添加到行中;
			sheet.addCell(label1);
			sheet.addCell(label2);
			sheet.addCell(label3);
			sheet.addCell(label4);
			
			//给第二行设置背景、字体颜色、对齐方式等等;
			WritableFont font2 = new WritableFont(WritableFont.ARIAL,14,WritableFont.NO_BOLD,false,UnderlineStyle.NO_UNDERLINE,Colour.BLUE2);
			WritableCellFormat cellFormat2 = new WritableCellFormat(font2);
			cellFormat2.setAlignment(Alignment.CENTRE);
			cellFormat2.setBackground(Colour.PINK);
			cellFormat2.setBorder(Border.ALL, BorderLineStyle.THIN);
			cellFormat2.setWrap(true);

			//创建单元格;
			Label label11= new Label(0,  1, "第二行第一个单元格(测试是否自动换行!)",cellFormat2);
			Label label22 = new Label(1, 1, "第二行第二个单元格",cellFormat2);
			Label label33 = new Label(2, 1, "第二行第三个单元格",cellFormat2);
			Label label44 = new Label(3, 1, "第二行第四个单元格",cellFormat2);

			sheet.addCell(label11);
			sheet.addCell(label22);
			sheet.addCell(label33);
			sheet.addCell(label44);

			//写入Excel表格中;
			workbook.write();
			//关闭流;
			workbook.close();
		}
	}
	
	/**
	 * 生成.zip文件;
	 * @param path
	 * @throws IOException 
	 */
	public static void craeteZipPath(String path) throws IOException{
		ZipOutputStream zipOutputStream = null;
		File file = new File(path+new SimpleDateFormat("yyyyMMddHHmmss").format(new Date())+".zip");
		zipOutputStream = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(file)));
		File[] files = new File(path).listFiles();
		FileInputStream fileInputStream = null;
		byte[] buf = new byte[1024];
		int len = 0;
		if(files!=null && files.length > 0){
			for(File excelFile:files){
				String fileName = excelFile.getName();
				fileInputStream = new FileInputStream(excelFile);
				//放入压缩zip包中;
				zipOutputStream.putNextEntry(new ZipEntry(path + "/"+fileName));
				
				//读取文件;
				while((len=fileInputStream.read(buf)) >0){
					zipOutputStream.write(buf, 0, len);
				}
				//关闭;
				zipOutputStream.closeEntry();
				if(fileInputStream != null){
					fileInputStream.close();
				}
			}
		}
		
		if(zipOutputStream !=null){
			zipOutputStream.close();
		}
	}
	
	/**
	 * 删除目录下所有的文件;
	 * @param path
	 */
	public static boolean deleteExcelPath(File file){
		String[] files = null;
		if(file != null){
			files = file.list();
		}
		
		if(file.isDirectory()){
			for(int i =0;i<files.length;i++){
				boolean bol = deleteExcelPath(new File(file,files[i]));
				if(bol){
					System.out.println("删除成功!");
				}else{
					System.out.println("删除失败!");
				}
			}
		}
		return file.delete();
	}
}