1.壓縮

package com.zhuifeng.common.util;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Properties;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;

/**
 * 
 * @author zhuifeng
 *
 * 檔案壓縮工具類
 */
public class ZipTool {
   /**
     * inputFileName 輸入一個資料夾
     * zipFileName 輸出一個壓縮資料夾
     * basedir 輸入檔案路徑
     */
    private static void compress(File file, ZipOutputStream out, String basedir) {  
        /* 判斷是目錄還是檔案 */  
        if (file.isDirectory())  
        {  
            // System.out.println("壓縮：" + basedir + file.getName());  
            compressDirectory(file, out, basedir);  
        }  
        else  
        {  
            // System.out.println("壓縮：" + basedir + file.getName());  
            compressFile(file, out, basedir);  
        }  
    }  

    /** 壓縮一個目錄 */  
    /**
     * inputFileName 輸入一個資料夾
     * zipFileName 輸出一個壓縮資料夾
     * basedir 輸入位置
     */
    private static void compressDirectory(File dir, ZipOutputStream out, String basedir) {  
        if (!dir.exists()) return;  

        File[] files = dir.listFiles();  
        for (int i = 0; i < files.length; i++)  
        {  
            /* 遞迴 */  
            compress(files[i], out, basedir + dir.getName() + "/");  
        }  
    }  

    /** 壓縮一個檔案 */  
    /**
     * inputFileName 輸入一個資料夾
     * zipFileName 輸出一個壓縮資料夾
     * basedir 輸入位置
     */
    private static void compressFile(File file, ZipOutputStream out, String basedir) {  
        if (!file.exists()) {  
            return;  
        }  
        try  {  
            BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));  
            ZipEntry entry = new ZipEntry(basedir + file.getName());
            Properties pro=System.getProperties();
            String osName=pro.getProperty("os.name");
            if("Linux".equals(osName)||"linux".equals(osName)){
                entry.setUnixMode(644);
            }
            out.putNextEntry(entry);  
            int count;  
            byte data[] = new byte[8192];  
            while ((count = bis.read(data, 0, 8192)) != -1)  {  
                out.write(data, 0, count);  
            }  
            bis.close();  
        }  
        catch (Exception e)  {  
            throw new RuntimeException(e);  
        }  
    }
    /**
     * 
     * @param srcPathName  原輸入檔案
     * @param zipFileName  zip輸入檔案
     */
    public static void zip(String srcPathName, String zipFileName,String basedir) {  
        File file = new File(srcPathName);  
        File zipFile = new File(zipFileName);  
        if (!file.exists()) throw new RuntimeException(srcPathName + "不存在！");  
        try {  
            FileOutputStream fileOutputStream = new FileOutputStream(zipFile);  
            CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream, new CRC32());  
            ZipOutputStream out = new ZipOutputStream(cos);  
            Properties pro=System.getProperties();
            String osName=pro.getProperty("os.name");
            if("Linux".equals(osName)||"linux".equals(osName)){
                out.setEncoding("GBK");//設定檔名編碼方式
            }else{
                out.setEncoding(System.getProperty("sun.jnu.encoding"));//設定檔名編碼方式
            }
            compress(file, out, basedir);  
            out.close();  
        }  
        catch (Exception e) {  
            throw new RuntimeException(e);  
        }  
    }
    
    public static void main(String[] args) {
    	zip("D:\\test\\20161009154206000","D:\\test\\2.zip","");
    }
}
 

package com.zhuifeng.common.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

/**
 * 
 * @author zhuifeng
 * 解壓工具類
 *
 */
public class UnZip {

	/**
	 * 
	 * @param zipFilePath  zip路徑
	 * @param destDir   解壓後存放的位置
	 */
	public static void unzip(String zipFilePath, String destDir) {
		System.setProperty("sun.zip.encoding",
				System.getProperty("sun.jnu.encoding"));
		File dir = new File(destDir);
		if (!dir.exists())
			dir.mkdirs();
		FileInputStream fis = null;
		ZipInputStream zis = null;
		byte[] buffer = new byte[1024];
		try {
			fis = new FileInputStream(zipFilePath);
			zis = new ZipInputStream(fis);
			ZipEntry ze = zis.getNextEntry();
			while (ze != null) {
				String fileName = ze.getName();
				File newFile = new File(destDir + File.separator + fileName);
				new File(newFile.getParent()).mkdirs();
				FileOutputStream fos = new FileOutputStream(newFile);
				int len;
				while ((len = zis.read(buffer)) > 0) {
					fos.write(buffer, 0, len);
				}
				fos.close();
				zis.closeEntry();
				ze = zis.getNextEntry();
			}
			if (zis != null) {
				zis.closeEntry();
				zis.close();
			}
			if (fis != null) {
				fis.close();
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (fis != null) {
					fis.close();
				}
				if (zis != null) {
					zis.closeEntry();
					zis.close();
				}
			} catch (IOException e) {
			}

		}

	}
}