java將文件打包成ZIP壓縮文件的工具類實例

package com.lanp;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
/**

將文件打包成ZIP壓縮文件
@author LanP
@since 2012-3-1 15:47
*/
public final class FileToZip {
private FileToZip() {
}
/**

將存放在sourceFilePath目錄下的源文件,打包成fileName名稱的ZIP文件,并存放到zipFilePath。
@param sourceFilePath 待壓縮的文件路徑
@param zipFilePath    壓縮后存放路徑
@param fileName       壓縮后文件的名稱
@return flag
*/
public static boolean fileToZip(String sourceFilePath,String zipFilePath,String fileName) {
 boolean flag = false;
 File sourceFile = new File(sourceFilePath);
 FileInputStream fis = null;
 BufferedInputStream bis = null;
 FileOutputStream fos = null;
 ZipOutputStream zos = null;
if(sourceFile.exists() == false) {

 System.out.println(">>>>>> 待壓縮的文件目錄：" + sourceFilePath + " 不存在. <<<<<<");

} else {

 try {
     File zipFile = new File(zipFilePath + "/" + fileName + ".zip");
     if(zipFile.exists()) {
         System.out.println(">>>>>> " + zipFilePath + " 目錄下存在名字為：" + fileName + ".zip" + " 打包文件. <<<<<<");
     } else {
         File[] sourceFiles = sourceFile.listFiles();
         if(null == sourceFiles || sourceFiles.length < 1) {
             System.out.println(">>>>>> 待壓縮的文件目錄：" + sourceFilePath + " 里面不存在文件,無需壓縮. <<<<<<");
         } else {
             fos = new FileOutputStream(zipFile);
             zos = new ZipOutputStream(new BufferedOutputStream(fos));
             byte[] bufs = new byte[1024*10];
             for(int i=0;i<sourceFiles.length;i++) {
                 // 創建ZIP實體,并添加進壓縮包
                 ZipEntry zipEntry = new ZipEntry(sourceFiles[i].getName());
                 zos.putNextEntry(zipEntry);
                 // 讀取待壓縮的文件并寫進壓縮包里
                 fis = new FileInputStream(sourceFiles[i]);
                 bis = new BufferedInputStream(fis,1024*10);
                 int read = 0;
                 while((read=bis.read(bufs, 0, 1024*10)) != -1) {
                     zos.write(bufs, 0, read);
                 }
             }
             flag = true;
         }
     }
 } catch (FileNotFoundException e) {
     e.printStackTrace();
     throw new RuntimeException(e);
 } catch (IOException e) {
     e.printStackTrace();
     throw new RuntimeException(e);
 } finally {
     // 關閉流
     try {
         if(null != bis) bis.close();
         if(null != zos) zos.close();
     } catch (IOException e) {
         e.printStackTrace();
         throw new RuntimeException(e);
     }
 }

}
return flag;
}
/**

將文件打包成ZIP壓縮文件,main方法測試
@param args
*/
public static void main(String[] args) {
 String sourceFilePath = "C:\home\lp20120301";
 String zipFilePath = "C:\home";
 String fileName = "lp20120301";
 boolean flag = FileToZip.fileToZip(sourceFilePath, zipFilePath, fileName);
 if(flag) {
 System.out.println(">>>>>> 文件打包成功. <<<<<<");

 } else {
 System.out.println(">>>>>> 文件打包失敗. <<<<<<");

 }
}
}</pre>