該文章參考了iteye某位大蝦的博客，我自己進行了修改。請大家參考

package cn;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import de.innosystec.unrar.Archive;

import de.innosystec.unrar.exception.RarException;

import de.innosystec.unrar.rarfile.FileHeader;

/**

* 對rar或者zip進行解壓縮

*

* @authorxfworld

*

*/

public class Decompress {

//private static String fileName = "";

/**

* 對rar文件解壓

*

* @param rarFileName

* @param extPlace

* @return

*/

public static boolean unrarFiles(String rarFileName, String extPlace) {

boolean flag = false;

Archive archive = null;

File out = null;

File file = null;

File dir = null;

FileOutputStream os = null;

FileHeader fh = null;

String path, dirPath = "";

try {

file = new File(rarFileName);

archive = new Archive(file);

} catch (RarException e1) {

e1.printStackTrace();

} catch (IOException e1) {

e1.printStackTrace();

} finally {

if (file != null) {

file = null;

}

}

if (archive != null) {

try {

fh = archive.nextFileHeader();

while (fh != null) {

//fileName = fh.getFileNameString().trim();

String fileName = "";

//for unicode

if(fh.isUnicode()){

fileName = fh.getFileNameW().trim();

}else{

fileName = fh.getFileNameString().trim();

}

//for linux

if(fileName.indexOf("\\\\")>0){

//path = (extPlace + fileName).replaceAll("\\\\", File.separator);

fileName = fileName.replaceAll("\\\\", File.separator);

}

if(extPlace.indexOf("\\\\")>0)

{

extPlace = extPlace.replaceAll("\\\\", File.separator);

}

File filepath=new File(extPlace);

if(filepath.isDirectory())

{

}

else

{

extPlace=extPlace+File.separator;

}

path= extPlace+ fileName;

int end = path.lastIndexOf("/");

if (end != -1) {

dirPath = path.substring(0, end);

}

try {

dir = new File(dirPath);

if (!dir.exists()) {

dir.mkdirs();

}

} catch (RuntimeException e1) {

e1.printStackTrace();

} finally {

if (dir != null) {

dir = null;

}

}

if (fh.isDirectory()) {

fh = archive.nextFileHeader();

continue;

}

out = new File(extPlace + fileName);

try {

if(!out.exists())

{

out.getParentFile().mkdirs();

out.createNewFile();

}

os = new FileOutputStream(out);

archive.extractFile(fh, os);

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (RarException e) {

e.printStackTrace();

}catch(Exception ee)

{

ee.printStackTrace();

}

finally {

if (os != null) {

try {

os.close();

} catch (IOException e) {

e.printStackTrace();

}

}

if (out != null) {

out = null;

}

}

fh = archive.nextFileHeader();

}

} catch (RuntimeException e) {

e.printStackTrace();

} finally {

fh = null;

if (archive != null) {

try {

archive.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

flag = true;

}

return flag;

}

}

/**

*

*/

package cn;

import java.io.File;

/**

* @author xfworld

*

*/

public class Main {

/**

*

*/

public Main() {

// TODO Auto-generated constructor stub

}

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

//Decompress.unrarFiles("F:"+File.separator+"jquery1.7.2.rar", "d:"+File.separator);

Decompress.unrarFiles("f:\\jquery1.7.2.rar", "d:\\1");

}

}

總結

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