Android(安卓)zip文件压缩解压

Android zip文件压缩解压

Android项目中需要将一些信息进行收集再进行压缩,最后将压缩文件上传到服务器中，以下代码实现此功能，并支持中文文件名

package com.example.androidzip.tools;import java.io.File;import java.util.ArrayList;import java.util.LinkedList;/** * 文件夹遍历 * @author miaowei * */public class DirTraversal {//no recursion    public static LinkedList<File> listLinkedFiles(String strPath) {        LinkedList<File> list = new LinkedList<File>();        File dir = new File(strPath);        File file[] = dir.listFiles();        for (int i = 0; i < file.length; i++) {            /*if (file[i].isDirectory()){                        list.add(file[i]);            }else{                        System.out.println(file[i].getAbsolutePath());                        }*/        list.add(file[i]);         }        /*File tmp;        while (!list.isEmpty()) {            tmp = (File) list.removeFirst();            if (tmp.isDirectory()) {                file = tmp.listFiles();                if (file == null)                    continue;                for (int i = 0; i < file.length; i++) {                    if (file[i].isDirectory())                        list.add(file[i]);                    else                        System.out.println(file[i].getAbsolutePath());                }            } else {                System.out.println(tmp.getAbsolutePath());            }        }*/        return list;    }          //recursion    public static ArrayList<File> listFiles(String strPath) {        return refreshFileList(strPath);    }     public static ArrayList<File> refreshFileList(String strPath) {        ArrayList<File> filelist = new ArrayList<File>();        File dir = new File(strPath);        File[] files = dir.listFiles();         if (files == null)            return null;        for (int i = 0; i < files.length; i++) {            if (files[i].isDirectory()) {                refreshFileList(files[i].getAbsolutePath());            } else {                if(files[i].getName().toLowerCase().endsWith("zip")){                                filelist.add(files[i]);                }                                }        }        return filelist;    }        public static ArrayList<File> arrayListFiles(String strPath){         ArrayList<File> filelist = new ArrayList<File>();         File dir = new File(strPath);         File[] files = dir.listFiles();         for (int i = 0; i < files.length; i++) {         filelist.add(files[i].getAbsoluteFile());}         return filelist;    }    //-----4.0读取文件的报 open failed: ENOENT (No such file or directory)    /** * 1\可先创建文件的路径 * @param filePath */public static void makeRootDirectory(String filePath) {File file = null;try {file = new File(filePath);if (!file.exists()) {file.mkdir();}} catch (Exception e) {e.printStackTrace();}}    /**     * 2\然后在创建文件名就不会在报该错误     * @param filePath     * @param fileName     * @return     */public static File getFilePath(String filePath, String fileName) {File file = null;makeRootDirectory(filePath);try {file = new File(filePath + fileName);} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}return file;}}

package com.example.androidzip.tools;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.io.OutputStream;import java.io.UnsupportedEncodingException;import java.util.ArrayList;import java.util.Collection;import java.util.Enumeration;import java.util.zip.ZipEntry;import java.util.zip.ZipException;import java.util.zip.ZipFile;import java.util.zip.ZipOutputStream;/** * Java utils 实现的Zip工具 * @author miaowei * */public class ZipUtils {private static final int BUFF_SIZE = 1024 * 1024; // 1M Byte     /**     * 批量压缩文件（夹）     *     * @param resFileList 要压缩的文件（夹）列表     * @param zipFile 生成的压缩文件     * @throws IOException 当压缩过程出错时抛出     */    public static void zipFiles(Collection<File> resFileList, File zipFile) throws IOException {        ZipOutputStream zipout = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFile), BUFF_SIZE));        for (File resFile : resFileList) {            zipFile(resFile, zipout, "");        }        zipout.close();    }     /**     * 批量压缩文件（夹）     *     * @param resFileList 要压缩的文件（夹）列表     * @param zipFile 生成的压缩文件     * @param comment 压缩文件的注释     * @throws IOException 当压缩过程出错时抛出     */    public static void zipFiles(Collection<File> resFileList, File zipFile, String comment)            throws IOException {        ZipOutputStream zipout = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(                zipFile), BUFF_SIZE));        for (File resFile : resFileList) {            zipFile(resFile, zipout, "");        }        zipout.setComment(comment);        zipout.close();    }     /**     * 解压缩一个文件     *     * @param zipFile 压缩文件     * @param folderPath 解压缩的目标目录     * @throws IOException 当解压缩过程出错时抛出     */    public static void upZipFile(File zipFile, String folderPath) throws ZipException, IOException {        File desDir = new File(folderPath);        if (!desDir.exists()) {            desDir.mkdirs();        }        ZipFile zf = new ZipFile(zipFile);        for (Enumeration<?> entries = zf.entries(); entries.hasMoreElements();) {            ZipEntry entry = ((ZipEntry)entries.nextElement());            if (entry.isDirectory()) {            continue;}            InputStream in = zf.getInputStream(entry);            String str = folderPath + File.separator + entry.getName();            str = new String(str.getBytes(), "utf-8");            File desFile = new File(str);            if (!desFile.exists()) {                File fileParentDir = desFile.getParentFile();                if (!fileParentDir.exists()) {                    fileParentDir.mkdirs();                }                desFile.createNewFile();            }            OutputStream out = new FileOutputStream(desFile);            byte buffer[] = new byte[BUFF_SIZE];            int realLength;            while ((realLength = in.read(buffer)) > 0) {                out.write(buffer, 0, realLength);            }            in.close();            out.close();        }    }     /**     * 解压文件名包含传入文字的文件     *     * @param zipFile 压缩文件     * @param folderPath 目标文件夹     * @param nameContains 传入的文件匹配名     * @throws ZipException 压缩格式有误时抛出     * @throws IOException IO错误时抛出     */    public static ArrayList<File> upZipSelectedFile(File zipFile, String folderPath,            String nameContains) throws ZipException, IOException {        ArrayList<File> fileList = new ArrayList<File>();         File desDir = new File(folderPath);        if (!desDir.exists()) {            desDir.mkdir();        }         ZipFile zf = new ZipFile(zipFile);        for (Enumeration<?> entries = zf.entries(); entries.hasMoreElements();) {            ZipEntry entry = ((ZipEntry)entries.nextElement());            if (entry.getName().contains(nameContains)) {                InputStream in = zf.getInputStream(entry);                String str = folderPath + File.separator + entry.getName();                str = new String(str.getBytes("utf-8"), "gbk");                // str.getBytes("GB2312"),"8859_1" 输出                // str.getBytes("8859_1"),"GB2312" 输入                File desFile = new File(str);                if (!desFile.exists()) {                    File fileParentDir = desFile.getParentFile();                    if (!fileParentDir.exists()) {                        fileParentDir.mkdirs();                    }                    desFile.createNewFile();                }                OutputStream out = new FileOutputStream(desFile);                byte buffer[] = new byte[BUFF_SIZE];                int realLength;                while ((realLength = in.read(buffer)) > 0) {                    out.write(buffer, 0, realLength);                }                in.close();                out.close();                fileList.add(desFile);            }        }        return fileList;    }     /**     * 获得压缩文件内文件列表     *     * @param zipFile 压缩文件     * @return 压缩文件内文件名称     * @throws ZipException 压缩文件格式有误时抛出     * @throws IOException 当解压缩过程出错时抛出     */    public static ArrayList<String> getEntriesNames(File zipFile) throws ZipException, IOException {        ArrayList<String> entryNames = new ArrayList<String>();        Enumeration<?> entries = getEntriesEnumeration(zipFile);        while (entries.hasMoreElements()) {            ZipEntry entry = ((ZipEntry)entries.nextElement());            entryNames.add(new String(getEntryName(entry).getBytes("GB2312"), "8859_1"));        }        return entryNames;    }     /**     * 获得压缩文件内压缩文件对象以取得其属性     *     * @param zipFile 压缩文件     * @return 返回一个压缩文件列表     * @throws ZipException 压缩文件格式有误时抛出     * @throws IOException IO操作有误时抛出     */    public static Enumeration<?> getEntriesEnumeration(File zipFile) throws ZipException,            IOException {        ZipFile zf = new ZipFile(zipFile);        return zf.entries();     }     /**     * 取得压缩文件对象的注释     *     * @param entry 压缩文件对象     * @return 压缩文件对象的注释     * @throws UnsupportedEncodingException     */    public static String getEntryComment(ZipEntry entry) throws UnsupportedEncodingException {        return new String(entry.getComment().getBytes("GB2312"), "8859_1");    }     /**     * 取得压缩文件对象的名称     *     * @param entry 压缩文件对象     * @return 压缩文件对象的名称     * @throws UnsupportedEncodingException     */    public static String getEntryName(ZipEntry entry) throws UnsupportedEncodingException {        return new String(entry.getName().getBytes("GB2312"), "8859_1");    }     /**     * 压缩文件     *     * @param resFile 需要压缩的文件（夹）     * @param zipout 压缩的目的文件     * @param rootpath 压缩的文件路径     * @throws FileNotFoundException 找不到文件时抛出     * @throws IOException 当压缩过程出错时抛出     */    private static void zipFile(File resFile, ZipOutputStream zipout, String rootpath)            throws FileNotFoundException, IOException {        rootpath = rootpath + (rootpath.trim().length() == 0 ? "" : File.separator)                + resFile.getName();        rootpath = new String(rootpath.getBytes(), "utf-8");        if (resFile.isDirectory()) {            File[] fileList = resFile.listFiles();            for (File file : fileList) {                zipFile(file, zipout, rootpath);            }        } else {            byte buffer[] = new byte[BUFF_SIZE];            BufferedInputStream in = new BufferedInputStream(new FileInputStream(resFile),                    BUFF_SIZE);            zipout.putNextEntry(new ZipEntry(rootpath));            int realLength;            while ((realLength = in.read(buffer)) != -1) {                zipout.write(buffer, 0, realLength);            }            in.close();            zipout.flush();            zipout.closeEntry();        }    }        //第二种实现public static void zip(String src, String dest) throws IOException {// 提供了一个数据项压缩成一个ZIP归档输出流ZipOutputStream out = null;try {//DirTraversal.makeRootDirectory(dest);//File outFile = DirTraversal.getFilePath(dest,"cache.zip");File outFile = new File(dest);// 源文件或者目录File fileOrDirectory = new File(src);// 压缩文件路径out = new ZipOutputStream(new FileOutputStream(outFile));// 如果此文件是一个文件，否则为false。if (fileOrDirectory.isFile()) {zipFileOrDirectory(out, fileOrDirectory, "");} else {// 返回一个文件或空阵列。File[] entries = fileOrDirectory.listFiles();for (int i = 0; i < entries.length; i++) {// 递归压缩，更新curPathszipFileOrDirectory(out, entries[i], "");}}} catch (IOException ex) {ex.printStackTrace();} finally {// 关闭输出流if (out != null) {try {out.close();} catch (IOException ex) {ex.printStackTrace();}}}}private static void zipFileOrDirectory(ZipOutputStream out,File fileOrDirectory, String curPath) throws IOException {// 从文件中读取字节的输入流FileInputStream in = null;try {// 如果此文件是一个目录，否则返回false。if (!fileOrDirectory.isDirectory()) {// 压缩文件byte[] buffer = new byte[4096];int bytes_read;in = new FileInputStream(fileOrDirectory);// 实例代表一个条目内的ZIP归档ZipEntry entry = new ZipEntry(curPath+ fileOrDirectory.getName());// 条目的信息写入底层流out.putNextEntry(entry);while ((bytes_read = in.read(buffer)) != -1) {out.write(buffer, 0, bytes_read);}out.closeEntry();} else {// 压缩目录File[] entries = fileOrDirectory.listFiles();for (int i = 0; i < entries.length; i++) {// 递归压缩，更新curPathszipFileOrDirectory(out, entries[i], curPath+ fileOrDirectory.getName() + "/");}}} catch (IOException ex) {ex.printStackTrace();// throw ex;} finally {if (in != null) {try {in.close();} catch (IOException ex) {ex.printStackTrace();}}}}@SuppressWarnings("unchecked")public static void unzip(String zipFileName, String outputDirectory)throws IOException {ZipFile zipFile = null;try {zipFile = new ZipFile(zipFileName);Enumeration e = zipFile.entries();ZipEntry zipEntry = null;File dest = new File(outputDirectory);dest.mkdirs();while (e.hasMoreElements()) {zipEntry = (ZipEntry) e.nextElement();String entryName = zipEntry.getName();InputStream in = null;FileOutputStream out = null;try {if (zipEntry.isDirectory()) {String name = zipEntry.getName();name = name.substring(0, name.length() - 1);File f = new File(outputDirectory + File.separator+ name);f.mkdirs();} else {int index = entryName.lastIndexOf("\\");if (index != -1) {File df = new File(outputDirectory + File.separator+ entryName.substring(0, index));df.mkdirs();}index = entryName.lastIndexOf("/");if (index != -1) {File df = new File(outputDirectory + File.separator+ entryName.substring(0, index));df.mkdirs();}File f = new File(outputDirectory + File.separator+ zipEntry.getName());// f.createNewFile();in = zipFile.getInputStream(zipEntry);out = new FileOutputStream(f);int c;byte[] by = new byte[1024];while ((c = in.read(by)) != -1) {out.write(by, 0, c);}out.flush();}} catch (IOException ex) {ex.printStackTrace();throw new IOException("解压失败：" + ex.toString());} finally {if (in != null) {try {in.close();} catch (IOException ex) {}}if (out != null) {try {out.close();} catch (IOException ex) {}}}}} catch (IOException ex) {ex.printStackTrace();throw new IOException("解压失败：" + ex.toString());} finally {if (zipFile != null) {try {zipFile.close();} catch (IOException ex) {}}}}}

package com.example.androidzip;import java.io.File;import java.io.IOException;import java.lang.reflect.Field;import java.util.LinkedList;import java.util.zip.ZipException;import android.app.Activity;import android.os.Bundle;import android.os.Environment;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import com.example.androidzip.tools.DirTraversal;import com.example.androidzip.tools.ZipUtils;/** * Android zip文件压缩解压缩 * @author miaowei * */public class MainActivity extends Activity {/** * 压缩 */private Button btn_zip;/** * 解压 */private Button btn_unzip;String pathString = Environment.getExternalStorageDirectory().getAbsolutePath();@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);btn_unzip = (Button)findViewById(R.id.btn_unzip);btn_zip = (Button)findViewById(R.id.btn_zip);btn_zip.setOnClickListener(onClickListener);btn_unzip.setOnClickListener(onClickListener);}private OnClickListener onClickListener = new OnClickListener(){@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.btn_zip:try {//测试数据，注意更换目录LinkedList<File> files = DirTraversal.listLinkedFiles(pathString+"/Android/data/com.mapbar.info.collection/files/cache");File file = DirTraversal.getFilePath(pathString+"/Android/data/com.mapbar.info.collection/files/", "cache.zip");ZipUtils.zipFiles(files, file);//第二种实现//ZipUtils.zip(pathString+"/Android/data/com.mapbar.info.collection/files/cache", pathString+"/Android/data/com.mapbar.info.collection/files/cache.zip");//ZipUtils.unzip(pathString+"/Android/data/com.mapbar.info.collection/files/cache.zip", pathString+"/Android/data/com.mapbar.info.collection/files/cache");} catch (IOException e) {e.printStackTrace();}break;case R.id.btn_unzip:File file = DirTraversal.getFilePath(pathString+"/Android/data/com.mapbar.info.collection/files/", "cache.zip");try {ZipUtils.upZipFile(file, pathString+"/Android/data/com.mapbar.info.collection/files/cachezip");} catch (ZipException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}break;default:break;}}};}

以下为处理乱码转换字符串的编码

/** * 转换字符串的编码 */  public class ChangeCharset {  /** 7位ASCII字符，也叫作ISO646-US、Unicode字符集的基本拉丁块 */  public static final String US_ASCII = "US-ASCII";    /** ISO 拉丁字母表 No.1，也叫作 ISO-LATIN-1 */  public static final String ISO_8859_1 = "ISO-8859-1";    /** 8 位 UCS 转换格式 */  public static final String UTF_8 = "UTF-8";    /** 16 位 UCS 转换格式，Big Endian（最低地址存放高位字节）字节顺序 */  public static final String UTF_16BE = "UTF-16BE";    /** 16 位 UCS 转换格式，Little-endian（最高地址存放低位字节）字节顺序 */  public static final String UTF_16LE = "UTF-16LE";    /** 16 位 UCS 转换格式，字节顺序由可选的字节顺序标记来标识 */  public static final String UTF_16 = "UTF-16";    /** 中文超大字符集 */  public static final String GBK = "GBK";    /** * 将字符编码转换成US-ASCII码 */  public String toASCII(String str) throws UnsupportedEncodingException {  return this.changeCharset(str, US_ASCII);  }  /** * 将字符编码转换成ISO-8859-1码 */  public String toISO_8859_1(String str) throws UnsupportedEncodingException {  return this.changeCharset(str, ISO_8859_1);  }  /** * 将字符编码转换成UTF-8码 */  public String toUTF_8(String str) throws UnsupportedEncodingException {  return this.changeCharset(str, UTF_8);  }  /** * 将字符编码转换成UTF-16BE码 */  public String toUTF_16BE(String str) throws UnsupportedEncodingException {  return this.changeCharset(str, UTF_16BE);  }  /** * 将字符编码转换成UTF-16LE码 */  public String toUTF_16LE(String str) throws UnsupportedEncodingException {  return this.changeCharset(str, UTF_16LE);  }  /** * 将字符编码转换成UTF-16码 */  public String toUTF_16(String str) throws UnsupportedEncodingException {  return this.changeCharset(str, UTF_16);  }  /** * 将字符编码转换成GBK码 */  public String toGBK(String str) throws UnsupportedEncodingException {  return this.changeCharset(str, GBK);  }    /** * 字符串编码转换的实现方法 * @param str 待转换编码的字符串 * @param newCharset 目标编码 * @return * @throws UnsupportedEncodingException */  public String changeCharset(String str, String newCharset)  throws UnsupportedEncodingException {  if (str != null) {  //用默认字符编码解码字符串。  byte[] bs = str.getBytes();  //用新的字符编码生成字符串  return new String(bs, newCharset);  }  return null;  }  /** * 字符串编码转换的实现方法 * @param str 待转换编码的字符串 * @param oldCharset 原编码 * @param newCharset 目标编码 * @return * @throws UnsupportedEncodingException */  public String changeCharset(String str, String oldCharset, String newCharset)  throws UnsupportedEncodingException {  if (str != null) {  //用旧的字符编码解码字符串。解码可能会出现异常。  byte[] bs = str.getBytes(oldCharset);  //用新的字符编码生成字符串  return new String(bs, newCharset);  }  return null;  }    public static void main(String[] args) throws UnsupportedEncodingException {  ChangeCharset test = new ChangeCharset();  String str = "This is a 中文的 String!";  System.out.println("str: " + str);  String gbk = test.toGBK(str);  System.out.println("转换成GBK码: " + gbk);  System.out.println();  String ascii = test.toASCII(str);  System.out.println("转换成US-ASCII码: " + ascii);  gbk = test.changeCharset(ascii,ChangeCharset.US_ASCII, ChangeCharset.GBK);  System.out.println("再把ASCII码的字符串转换成GBK码: " + gbk);  System.out.println();  String iso88591 = test.toISO_8859_1(str);  System.out.println("转换成ISO-8859-1码: " + iso88591);  gbk = test.changeCharset(iso88591,ChangeCharset.ISO_8859_1, ChangeCharset.GBK);  System.out.println("再把ISO-8859-1码的字符串转换成GBK码: " + gbk);  System.out.println();  String utf8 = test.toUTF_8(str);  System.out.println("转换成UTF-8码: " + utf8);  gbk = test.changeCharset(utf8,ChangeCharset.UTF_8, ChangeCharset.GBK);  System.out.println("再把UTF-8码的字符串转换成GBK码: " + gbk);  System.out.println();  String utf16be = test.toUTF_16BE(str);  System.out.println("转换成UTF-16BE码:" + utf16be);  gbk = test.changeCharset(utf16be,ChangeCharset.UTF_16BE, ChangeCharset.GBK);  System.out.println("再把UTF-16BE码的字符串转换成GBK码: " + gbk);  System.out.println();  String utf16le = test.toUTF_16LE(str);  System.out.println("转换成UTF-16LE码:" + utf16le);  gbk = test.changeCharset(utf16le,ChangeCharset.UTF_16LE, ChangeCharset.GBK);  System.out.println("再把UTF-16LE码的字符串转换成GBK码: " + gbk);  System.out.println();  String utf16 = test.toUTF_16(str);  System.out.println("转换成UTF-16码:" + utf16);  gbk = test.changeCharset(utf16,ChangeCharset.UTF_16LE, ChangeCharset.GBK);  System.out.println("再把UTF-16码的字符串转换成GBK码: " + gbk);  String s = new String("中文".getBytes("UTF-8"),"UTF-8");  System.out.println(s);  }  }

附件中有源码供参考

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