import android.content.Context;
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; 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 , Context context) 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(, szName.length() - );
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[];
// 读取（字节）字节到缓冲区
while ((len = inZip.read(buffer)) != -) {
// 从缓冲区（0）位置写入（字节）字节
out.write(buffer, , 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(, szName.length() - );
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[];
// 读取（字节）字节到缓冲区
while ((len = inZip.read(buffer)) != -) {
// 从缓冲区（0）位置写入（字节）字节
out.write(buffer, , 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[];
while((len=inputStream.read(buffer)) != -)
{
zipOutputSteam.write(buffer, , len);
}
zipOutputSteam.closeEntry();
}
else {
//文件夹
String fileList[] = file.list();
//没有子文件和压缩
if (fileList.length <= ) {
ZipEntry zipEntry = new ZipEntry(fileString+ File.separator);
zipOutputSteam.putNextEntry(zipEntry);
zipOutputSteam.closeEntry();
}
//子文件和递归
for (int i = ; 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(, szName.length() - );
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;
}
}
使用：
// 需要解压的文件
String zipFileName = Environment.getExternalStorageDirectory().getPath() + "/xxxx/resource/"+fileName;
// 解压到的目录位置
String zipToFilePath = Environment.getExternalStorageDirectory().getPath() + "/xxxx/"+fileName;
// 解压指定文件到指定目录 ，成功后删除
try {
ZipUtils.UnZipFolder(zipFileName, zipToFilePath,getActivity());
hasDowmResourceNum++; // 已经下载完成的资源个数+1
} catch (Exception e) {
e.printStackTrace();
Log.i("xqxinfo","e:"+e.getMessage().toString());
hasDowmErrorResourceNum++; // 下载失败的资源个数+1
}