Android Zip解压缩工具类分享

本文实例为大家分享了Android Zip解压缩工具类的具体代码，供大家参考，具体内容如下

package com.example.zip.commons.utils;

import android.util.Log;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;

/**
 * @author: lijuan
 * @description: 解压ZIP文件
 * @date: 2017-04-11
 * @time: 09:22
 */
public class ZipUtils {
 public static final String TAG="ZIP";
 public ZipUtils(){

 }

 /**
  * 解压zip到指定的路径
  * @param zipFileString ZIP的名称
  * @param outPathString 要解压缩路径
  * @throws Exception
  */
 public static void UnZipFolder(String zipFileString, String outPathString) throws Exception {
  ZipInputStream inZip = new ZipInputStream(new FileInputStream(zipFileString));
  ZipEntry zipEntry;
  String szName = "";
  while ((zipEntry = inZip.getNextEntry()) != null) {
   szName = zipEntry.getName();
   if (zipEntry.isDirectory()) {
    //获取部件的文件夹名
    szName = szName.substring(0, szName.length() - 1);
    File folder = new File(outPathString + File.separator + szName);
    folder.mkdirs();
   } else {
    Log.e(TAG,outPathString + File.separator + szName);
    File file = new File(outPathString + File.separator + szName);
    if (!file.exists()){
     Log.e(TAG, "Create the file:" + outPathString + File.separator + szName);
     file.getParentFile().mkdirs();
     file.createNewFile();
    }
    // 获取文件的输出流
    FileOutputStream out = new FileOutputStream(file);
    int len;
    byte[] buffer = new byte[1024];
    // 读取（字节）字节到缓冲区
    while ((len = inZip.read(buffer)) != -1) {
     // 从缓冲区（0）位置写入（字节）字节
     out.write(buffer, 0, len);
     out.flush();
    }
    out.close();
   }
  }
  inZip.close();
 }

 public static void UnZipFolder(String zipFileString, String outPathString,String szName) throws Exception {
  ZipInputStream inZip = new ZipInputStream(new FileInputStream(zipFileString));
  ZipEntry zipEntry;
   while ((zipEntry = inZip.getNextEntry()) != null) {
   //szName = zipEntry.getName();
   if (zipEntry.isDirectory()) {
    //获取部件的文件夹名
    szName = szName.substring(0, szName.length() - 1);
    File folder = new File(outPathString + File.separator + szName);
    folder.mkdirs();
   } else {
    Log.e(TAG,outPathString + File.separator + szName);
    File file = new File(outPathString + File.separator + szName);
    if (!file.exists()){
     Log.e(TAG, "Create the file:" + outPathString + File.separator + szName);
     file.getParentFile().mkdirs();
     file.createNewFile();
    }
    // 获取文件的输出流
    FileOutputStream out = new FileOutputStream(file);
    int len;
    byte[] buffer = new byte[1024];
    // 读取（字节）字节到缓冲区
    while ((len = inZip.read(buffer)) != -1) {
     // 从缓冲区（0）位置写入（字节）字节
     out.write(buffer, 0, len);
     out.flush();
    }
    out.close();
   }
  }
  inZip.close();
 }

 /**
  * 压缩文件和文件夹
  * @param srcFileString 要压缩的文件或文件夹
  * @param zipFileString 解压完成的Zip路径
  * @throws Exception
  */
 public static void ZipFolder(String srcFileString, String zipFileString)throws Exception {
  //创建ZIP
  ZipOutputStream outZip = new ZipOutputStream(new FileOutputStream(zipFileString));
  //创建文件
  File file = new File(srcFileString);
  //压缩
  ZipFiles(file.getParent()+File.separator, file.getName(), outZip);
  //完成和关闭
  outZip.finish();
  outZip.close();
 }

 /**
  * 压缩文件
  * @param folderString
  * @param fileString
  * @param zipOutputSteam
  * @throws Exception
  */
 private static void ZipFiles(String folderString, String fileString, ZipOutputStream zipOutputSteam)throws Exception{
  if(zipOutputSteam == null)
   return;
  File file = new File(folderString+fileString);
  if (file.isFile()) {
   ZipEntry zipEntry = new ZipEntry(fileString);
   FileInputStream inputStream = new FileInputStream(file);
   zipOutputSteam.putNextEntry(zipEntry);
   int len;
   byte[] buffer = new byte[4096];
   while((len=inputStream.read(buffer)) != -1)
   {
    zipOutputSteam.write(buffer, 0, len);
   }
   zipOutputSteam.closeEntry();
  }
  else {
   //文件夹
   String fileList[] = file.list();
   //没有子文件和压缩
   if (fileList.length <= 0) {
    ZipEntry zipEntry = new ZipEntry(fileString+File.separator);
    zipOutputSteam.putNextEntry(zipEntry);
    zipOutputSteam.closeEntry();
   }
   //子文件和递归
   for (int i = 0; i < fileList.length; i++) {
    ZipFiles(folderString, fileString+ File.separator+fileList[i], zipOutputSteam);
   }
  }
 }

 /**
  * 返回zip的文件输入流
  * @param zipFileString zip的名称
  * @param fileString  ZIP的文件名
  * @return InputStream
  * @throws Exception
  */
 public static InputStream UpZip(String zipFileString, String fileString)throws Exception {
  ZipFile zipFile = new ZipFile(zipFileString);
  ZipEntry zipEntry = zipFile.getEntry(fileString);
  return zipFile.getInputStream(zipEntry);
 }

 /**
  * 返回ZIP中的文件列表（文件和文件夹）
  * @param zipFileString  ZIP的名称
  * @param bContainFolder 是否包含文件夹
  * @param bContainFile  是否包含文件
  * @return
  * @throws Exception
  */
 public static List<File> GetFileList(String zipFileString, boolean bContainFolder, boolean bContainFile)throws Exception {
  List<File> fileList = new ArrayList<File>();
  ZipInputStream inZip = new ZipInputStream(new FileInputStream(zipFileString));
  ZipEntry zipEntry;
  String szName = "";
  while ((zipEntry = inZip.getNextEntry()) != null) {
   szName = zipEntry.getName();
   if (zipEntry.isDirectory()) {
    // 获取部件的文件夹名
    szName = szName.substring(0, szName.length() - 1);
    File folder = new File(szName);
    if (bContainFolder) {
     fileList.add(folder);
    }
   } else {
    File file = new File(szName);
    if (bContainFile) {
     fileList.add(file);
    }
   }
  }
  inZip.close();
  return fileList;
 }
}

添加权限

<!-- 允许应用程序写数据到外部存储设备（主要是SD卡） -->
  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
  <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
  <!-- 在sdcard中创建/删除文件的权限 -->
  <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />

在具体的场景中测试一下

ZipUtils.UnZipFolder(AppConfig.DOWNLOAD_PATH + info.getFileName(), AppConfig.UNZIP_PATH);

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持小牛知识库。