Java解压缩zip文件

下面实现的功能是zip文件中的图像文件解压到当前目录下，用jdk自带的处理zip文件的代码处理的，但是不能处理中文名称的文件，要不然就会出错。

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

/**
 * 不能处理中文文件名
 */
public class UnZip
{
    private static final int buffer = 2048;

    public static void main(String[] args)
    {
        unZip("D:\ss\test.zip");
    }

    public static void unZip(String path)
    {
        int count = -1;
        int index = -1;

        String savepath = "";
        boolean flag = false;

        savepath = path.substring(0, path.lastIndexOf("\")) + "\";

        try
        {
            BufferedOutputStream bos = null;
            ZipEntry entry = null;
            FileInputStream fis = new FileInputStream(path);
            ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));

            while((entry = zis.getNextEntry()) != null)
            {
                byte data[] = new byte[buffer];

                String temp = entry.getName();

                flag = isPics(temp);
                if(!flag)
                    continue;

                index = temp.lastIndexOf("/");
                if(index > -1)
                    temp = temp.substring(index+1);
                temp = savepath + temp;

                File f = new File(temp);
                f.createNewFile();

                FileOutputStream fos = new FileOutputStream(f);
                bos = new BufferedOutputStream(fos, buffer);

                while((count = zis.read(data, 0, buffer)) != -1)
                {
                    bos.write(data, 0, count);
                }

                bos.flush();
                bos.close();
            }

            zis.close();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static boolean isPics(String filename)
    {
        boolean flag = false;

        if(filename.endsWith(".jpg") || filename.endsWith(".gif")  || filename.endsWith(".bmp") || filename.endsWith(".png"))
            flag = true;

        return flag;
    }
}

下面是用的apache的zip文件处理包进行处理的，可以处理中文名称的文件，功能跟上面的一样。

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;

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

/**
 * 可以处理中文文件名
 */
public class UnZip2
{
    private static final int buffer = 2048;

    public static void main(String[] args)
    {
        unZip("D:\ss\test.zip");
    }

    public static void unZip(String path)
    {
        int count = -1;
        int index = -1;
        String savepath = "";
        boolean flag = false;

        File file = null;
        InputStream is = null;
        FileOutputStream fos = null;
        BufferedOutputStream bos = null;

        savepath = path.substring(0, path.lastIndexOf("\")) + "\";

        try
        {
            ZipFile zipFile = new ZipFile(path);

            Enumeration<?> entries = zipFile.getEntries();

            while(entries.hasMoreElements())
            {
                byte buf[] = new byte[buffer];

                ZipEntry entry = (ZipEntry)entries.nextElement();

                String filename = entry.getName();
                index = filename.lastIndexOf("/");
                if(index > -1)
                    filename = filename.substring(index+1);

                filename = savepath + filename;

                flag = isPics(filename);
                if(!flag)
                    continue;

                file = new File(filename);
                file.createNewFile();

                is = zipFile.getInputStream(entry);

                fos = new FileOutputStream(file);
                bos = new BufferedOutputStream(fos, buffer);

                while((count = is.read(buf)) > -1)
                {
                    bos.write(buf, 0, count );
                }

                fos.close();

                is.close();
            }

            zipFile.close();

        }catch(IOException ioe){
            ioe.printStackTrace();
        }
    }

    public static boolean isPics(String filename)
    {
        boolean flag = false;

        if(filename.endsWith(".jpg") || filename.endsWith(".gif")  || filename.endsWith(".bmp") || filename.endsWith(".png"))
            flag = true;

        return flag;
    }
}