Java实现解压Apk、往apk中增加文件

import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.Enumeration;

import org.apache.commons.compress.archivers.ArchiveInputStream;
import org.apache.commons.compress.archivers.ArchiveStreamFactory;
import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream;
import org.apache.commons.compress.archivers.zip.ZipFile;

/**
* @Title: Apk.java
* @Description: 解压Apk、往apk中增加文件的 实现
* @author xieyuan 734584250@qq.com
* @date 2016-1-15 上午9:54:17
*/

/**
* @author xieyuan
*/
public class ApkUtils {
private void copy(InputStream inputStream, OutputStream outputStream) throws IOException{
byte[] b = new byte[2048];
int len = 0;
while((len = inputStream.read(b)) != -1){
outputStream.write(b, 0, len);
}
}
/**
* 往Apk中byte[]
* @param apkPath
* @param outputPath
* @param addFilePath 文件路径
* @param entryName 希望在apk中显示的路径、名称
*/
public void addByteToApk(String apkPath,String outputPath,byte[] addFileBytes,String entryName){
File file = new File(apkPath);
File outputFile = new File(outputPath);
if(!file.exists()){
System.out.println("not found "+apkPath);
return;
}
if(outputFile.exists()){
outputFile.delete();
}
try {
ZipArchiveOutputStream zipArchiveOutputStream = new ZipArchiveOutputStream(outputFile);

ZipFile zipFile = new ZipFile(file);
Enumeration<ZipArchiveEntry> enumeration = zipFile.getEntries();
//原样拷贝
while (enumeration.hasMoreElements()) {
ZipArchiveEntry zipArchiveEntry =  enumeration.nextElement();
if(zipArchiveEntry.getName().equals(entryName)){
System.out.println("Wranning! found "+entryName+" cover it !");
continue;
}

zipArchiveOutputStream.putArchiveEntry(zipArchiveEntry);
if(!zipArchiveEntry.isDirectory()){
copy(zipFile.getInputStream(zipArchiveEntry), zipArchiveOutputStream);
}
zipArchiveOutputStream.closeArchiveEntry();
}
//添加文件

ZipArchiveEntry zipArchiveEntry = new ZipArchiveEntry(entryName);

zipArchiveOutputStream.putArchiveEntry(zipArchiveEntry);
zipArchiveOutputStream.write(addFileBytes);
zipArchiveOutputStream.closeArchiveEntry();

zipFile.close();
zipArchiveOutputStream.close();

} catch (Exception e) {
e.printStackTrace();
}

}
public void addStrToApk(String apkPath,String outputPath,String addStr,String entryName){
try {
addByteToApk(apkPath, outputPath, addStr.getBytes("utf-8"), entryName);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

/**
* 往Apk中添加文件
* @param apkPath
* @param outputPath
* @param addFilePath 文件路径
* @param entryName 希望在apk中显示的路径、名称
*/
public void addFileToApk(String apkPath,String outputPath,String addFilePath,String entryName){
try {
File addFile = new File(addFilePath);
FileInputStream fileInputStream = new FileInputStream(addFile);
BufferedInputStream bufferedInputStream = new BufferedInputStream(fileInputStream);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
int len =0;
byte[] buffer = new byte[2048];
while((len = bufferedInputStream.read(buffer)) != -1){
bos.write(buffer, 0 ,len);
}
bos.flush();

bufferedInputStream.close();
fileInputStream.close();

addByteToApk(apkPath, outputPath, bos.toByteArray(), entryName);
} catch (IOException e) {
// TODO: handle exception
}

}

/**
* 解压apk
* @param apkPath
* @param outPath
*/
public void unZipApk(String apkPath,String outPath){
File file = new File(apkPath);
if(!file.exists()){
System.out.println("not found "+apkPath);
return;
}
try {

File outputDir = new File(outPath);
outputDir.mkdir();

BufferedInputStream bufferedInputStream = new BufferedInputStream(new FileInputStream(file));
ArchiveInputStream inputStream = new ArchiveStreamFactory().createArchiveInputStream(ArchiveStreamFactory.ZIP, bufferedInputStream);
ZipArchiveEntry zipArchiveEntry = null;
try {
while((zipArchiveEntry = (ZipArchiveEntry) inputStream.getNextEntry()) != null){

if(zipArchiveEntry.isDirectory()){
new File(outputDir,zipArchiveEntry.getName()).mkdirs();
}else{
File tempFile = new File(outputDir,zipArchiveEntry.getName());
if(!tempFile.getParentFile().exists()){
tempFile.getParentFile().mkdirs();
}

FileOutputStream fos = null;
try {
fos = new FileOutputStream(tempFile);
//IOUtils.copy(inputStream, fos);
byte[] b = new byte[2048];
int len = 0;
while((len = inputStream.read(b)) != -1){
fos.write(b, 0, len);
}
fos.flush();
} catch (IOException e) {
e.printStackTrace();

}finally{
if(fos != null){
fos.close();
}
}

}
}

} catch (Exception e) {
e.printStackTrace();
}finally{
if(inputStream != null){
inputStream.close();
}
}

System.out.println("unZipApk done !");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}

public static void main(String[] args){
ApkUtils apkUtils = new ApkUtils();
//apkUtils.unZipApk("d:\\Administrator\\Desktop\\ApkIDE_ApkIDE_Apk.apk", "d:\\Administrator\\Desktop\\ApkIDE_ApkIDE_Apk");
apkUtils.addStrToApk("d:\\Administrator\\Desktop\\ApkIDE_ApkIDE_Apk.apk",
"d:\\Administrator\\Desktop\\new.apk",
"d:\\Administrator\\Desktop\\DEV信息APP版本-cyl(4).doc",
"DEV信息APP版本-cyl(4).txt");
}
}