android 从 zip 文件中解压文件夹并从该文件夹中读取内容
android unzip folder from zip file and read content from that folder
在我的一个应用程序中,我需要提取一个包含文件夹的 zip 文件,该文件夹包含图像,这意味着 abc.zip=>adb(folder)=>abc.png
我想提取图像文件
我用了下面的方法
private boolean extractFolder(File destination, File zipFile) throws ZipException, IOException
{
int BUFFER = 8192;
File file = zipFile;
//This can throw ZipException if file is not valid zip archive
ZipFile zip = new ZipFile(file);
// String newPath = destination.getAbsolutePath() + File.separator + FilenameUtils.removeExtension(zipFile.getName());
String newPath = destination.getAbsolutePath() + File.separator + zipFile.getName();
//Create destination directory
new File(newPath).mkdir();
Enumeration zipFileEntries = zip.entries();
//Iterate overall zip file entries
while (zipFileEntries.hasMoreElements())
{
ZipEntry entry = (ZipEntry) zipFileEntries.nextElement();
String currentEntry = entry.getName();
File destFile = new File(newPath, currentEntry);
File destinationParent = destFile.getParentFile();
//If entry is directory create sub directory on file system
destinationParent.mkdirs();
if (!entry.isDirectory())
{
//Copy over data into destination file
BufferedInputStream is = new BufferedInputStream(zip
.getInputStream(entry));
int currentByte;
byte data[] = new byte[BUFFER];
//orthodox way of copying file data using streams
FileOutputStream fos = new FileOutputStream(destFile);
BufferedOutputStream dest = new BufferedOutputStream(fos, BUFFER);
while ((currentByte = is.read(data, 0, BUFFER)) != -1) {
dest.write(data, 0, currentByte);
}
dest.flush();
dest.close();
is.close();
}
}
return true;//some error codes etc.
}
但得到 zipfolder/foldername/ (Is a directory)
private void unzip(String src, String dest){
final int BUFFER_SIZE = 4096;
BufferedOutputStream bufferedOutputStream = null;
FileInputStream fileInputStream;
try {
fileInputStream = new FileInputStream(src);
ZipInputStream zipInputStream = new ZipInputStream(new BufferedInputStream(fileInputStream));
ZipEntry zipEntry;
while ((zipEntry = zipInputStream.getNextEntry()) != null){
String zipEntryName = zipEntry.getName();
String name = dest.substring(dest.lastIndexOf("/")-1);
File FileName = new File(FolderName);
if (!FileName.isDirectory()) {
try {
if (FileName.mkdir()) {
} else {
}
} catch (Exception e) {
e.printStackTrace();
}
}
File file = new File(FolderName+"/" +zipEntryName);
if (file.exists()){
} else {
if(zipEntry.isDirectory()){
file.mkdirs();
}else{
byte buffer[] = new byte[BUFFER_SIZE];
FileOutputStream fileOutputStream = new FileOutputStream(file);
bufferedOutputStream = new BufferedOutputStream(fileOutputStream, BUFFER_SIZE);
int count;
while ((count = zipInputStream.read(buffer, 0, BUFFER_SIZE)) != -1) {
bufferedOutputStream.write(buffer, 0, count);
}
bufferedOutputStream.flush();
bufferedOutputStream.close();
}
}
}
zipInputStream.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
试试这个对我有用的代码。
在我的一个应用程序中,我需要提取一个包含文件夹的 zip 文件,该文件夹包含图像,这意味着 abc.zip=>adb(folder)=>abc.png 我想提取图像文件
我用了下面的方法
private boolean extractFolder(File destination, File zipFile) throws ZipException, IOException
{
int BUFFER = 8192;
File file = zipFile;
//This can throw ZipException if file is not valid zip archive
ZipFile zip = new ZipFile(file);
// String newPath = destination.getAbsolutePath() + File.separator + FilenameUtils.removeExtension(zipFile.getName());
String newPath = destination.getAbsolutePath() + File.separator + zipFile.getName();
//Create destination directory
new File(newPath).mkdir();
Enumeration zipFileEntries = zip.entries();
//Iterate overall zip file entries
while (zipFileEntries.hasMoreElements())
{
ZipEntry entry = (ZipEntry) zipFileEntries.nextElement();
String currentEntry = entry.getName();
File destFile = new File(newPath, currentEntry);
File destinationParent = destFile.getParentFile();
//If entry is directory create sub directory on file system
destinationParent.mkdirs();
if (!entry.isDirectory())
{
//Copy over data into destination file
BufferedInputStream is = new BufferedInputStream(zip
.getInputStream(entry));
int currentByte;
byte data[] = new byte[BUFFER];
//orthodox way of copying file data using streams
FileOutputStream fos = new FileOutputStream(destFile);
BufferedOutputStream dest = new BufferedOutputStream(fos, BUFFER);
while ((currentByte = is.read(data, 0, BUFFER)) != -1) {
dest.write(data, 0, currentByte);
}
dest.flush();
dest.close();
is.close();
}
}
return true;//some error codes etc.
}
但得到 zipfolder/foldername/ (Is a directory)
private void unzip(String src, String dest){
final int BUFFER_SIZE = 4096;
BufferedOutputStream bufferedOutputStream = null;
FileInputStream fileInputStream;
try {
fileInputStream = new FileInputStream(src);
ZipInputStream zipInputStream = new ZipInputStream(new BufferedInputStream(fileInputStream));
ZipEntry zipEntry;
while ((zipEntry = zipInputStream.getNextEntry()) != null){
String zipEntryName = zipEntry.getName();
String name = dest.substring(dest.lastIndexOf("/")-1);
File FileName = new File(FolderName);
if (!FileName.isDirectory()) {
try {
if (FileName.mkdir()) {
} else {
}
} catch (Exception e) {
e.printStackTrace();
}
}
File file = new File(FolderName+"/" +zipEntryName);
if (file.exists()){
} else {
if(zipEntry.isDirectory()){
file.mkdirs();
}else{
byte buffer[] = new byte[BUFFER_SIZE];
FileOutputStream fileOutputStream = new FileOutputStream(file);
bufferedOutputStream = new BufferedOutputStream(fileOutputStream, BUFFER_SIZE);
int count;
while ((count = zipInputStream.read(buffer, 0, BUFFER_SIZE)) != -1) {
bufferedOutputStream.write(buffer, 0, count);
}
bufferedOutputStream.flush();
bufferedOutputStream.close();
}
}
}
zipInputStream.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
试试这个对我有用的代码。