gzip压缩指定目录下的所有文件

package com.example.testgzip;

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.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.GZIPOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import com.example.androidandjs.R;

import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class TestGzip extends Activity implements OnClickListener {
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_gzip);
  Button myGzip = (Button) findViewById(R.id.myGzip);
  myGzip.setOnClickListener(this);
 }

 @Override
 public void onClick(View v) {
  switch (v.getId()) {
  case R.id.myGzip:
   // 获取当前文件的路径
   String path = getApplicationContext().getFilesDir().getParent();
   // 将这些文件将当前路径下的文件进行复制压缩
   String targetPath = Environment.getExternalStorageDirectory() + "/haha";
   File target = new File(targetPath);
   if (!target.exists()) {
    target.mkdirs();
   }
   Log.d("aaa", "target:" + target.exists());
   // 创建一个gzip包
   File targetGZip = new File(target.getAbsolutePath() + "/" + new File(path).getName() + ".gz");
   try {
    ZipOutputStream out = new ZipOutputStream(new FileOutputStream(targetGZip));
    BufferedOutputStream bo = new BufferedOutputStream(out);
    File source = new File(path);
    gzipFile(source, out, source.getName(), bo);
   } catch (Exception e) {
    e.printStackTrace();
   }
   break;
  default:
   break;
  }
 }

 public void gzipFile(File source, ZipOutputStream out, String base, BufferedOutputStream bo) {
  if (source.isDirectory()) {
   File[] listFiles = source.listFiles();
   if (listFiles.length == 0) {
    try {
     out.putNextEntry(new ZipEntry(base + "/"));
    } catch (IOException e) {
     e.printStackTrace();
    }
    // 创建zip压缩进入点base
    System.out.println(base + "/");
   }
   for (int i = 0; i < listFiles.length; i++) {
    gzipFile(listFiles[i], out, base + "/" + listFiles[i].getName(), bo);
   }
  } else if (source.isFile()) {
   try {
    out.putNextEntry(new ZipEntry(base)); // 创建zip压缩进入点base
             FileInputStream in = new FileInputStream(source);
             BufferedInputStream bi = new BufferedInputStream(in);
             int b;
             while ((b = bi.read()) != -1) {
                 bo.write(b); // 将字节流写入当前zip目录
             }
             bi.close();
             in.close(); // 输入流关闭
   } catch (Exception e) {
    Log.d("aaa", "error:" + e.getMessage());
   }
  } else {
   throw new IllegalArgumentException("当前source不存在");
  }
 }

 //拷贝指定目录下多级目录里的文件
 public void copyFile(File source, File target) {
  if (source.isDirectory()) {
   File target1 = new File(target.getAbsolutePath() + "/" + source.getName());
   target1.mkdirs();
   File[] listFiles = source.listFiles();
   for (int i = 0; i < listFiles.length; i++) {
    copyFile(listFiles[i], target1);
   }
  } else if (source.isFile()) {
   try {
    FileInputStream in = new FileInputStream(source);
    String targetPath = target.getAbsolutePath();
    targetPath = targetPath + "/" + source.getName();
    Log.d("aaa", "targetPath===>" + targetPath);
    FileOutputStream out = new FileOutputStream(new File(targetPath));
    byte[] bys = new byte[1024 * 5];
    int len = -1;
    while ((len = in.read(bys)) != -1) {
     out.write(bys, 0, len);
    }
    in.close();
    out.close();
   } catch (Exception e) {
    Log.d("aaa", "error:" + e.getMessage());
   }
  } else {
   throw new IllegalArgumentException("当前source不存在");
  }
 }
}