Android zip文件压缩解压 博客分类： android androidzip压缩解压
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2024-03-24 16:53:58
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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 block
e.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curPaths
zipFileOrDirectory(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curPaths
zipFileOrDirectory(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();
@Override
protected 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(){
@Override
public 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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Android如何实现压缩和解压缩文件