???java?????zip??rar?????????y??
???????????? ???????[ 2015/12/14 10:38:51 ] ???????????????
???java?????zip??rar?????????y???????????
package decompress;
import java.io.File;
import java.io.FileOutputStream;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.Expand;
import de.innosystec.unrar.Archive;
import de.innosystec.unrar.rarfile.FileHeader;
public class DeCompressUtil {
/**
* ???zip????????
* ???????ant.jar
*/
private static void unzip(String sourceZip??String destDir) throws Exception{
try{
Project p = new Project();
Expand e = new Expand();
e.setProject(p);
e.setSrc(new File(sourceZip));
e.setOverwrite(false);
e.setDest(new File(destDir));
/*
ant?μ?zip???????????????UTF-8????
??winRAR???????????windows????GBK????GB2312????
???????????????????
*/
e.setEncoding("gbk");
e.execute();
}catch(Exception e){
throw e;
}
}
/**
* ???rar??????????
* ???????java-unrar-0.3.jar??????java-unrar-0.3.jar??????commons-logging-1.1.1.jar
*/
private static void unrar(String sourceRar??String destDir) throws Exception{
Archive a = null;
FileOutputStream fos = null;
try{
a = new Archive(new File(sourceRar));
FileHeader fh = a.nextFileHeader();
while(fh!=null){
if(!fh.isDirectory()){
//1 ????????????????????? destDirName ?? destFileName
String compressFileName = fh.getFileNameString().trim();
String destFileName = "";
String destDirName = "";
//??windows??
if(File.separator.equals("/")){
destFileName = destDir + compressFileName.replaceAll("\\"?? "/");
destDirName = destFileName.substring(0?? destFileName.lastIndexOf("/"));
//windows??
}else{
destFileName = destDir + compressFileName.replaceAll("/"?? "\\");
destDirName = destFileName.substring(0?? destFileName.lastIndexOf("\"));
}
//2?????????
File dir = new File(destDirName);
if(!dir.exists()||!dir.isDirectory()){
dir.mkdirs();
}
//3????????
fos = new FileOutputStream(new File(destFileName));
a.extractFile(fh?? fos);
fos.close();
fos = null;
}
fh = a.nextFileHeader();
}
a.close();
a = null;
}catch(Exception e){
throw e;
}finally{
if(fos!=null){
try{fos.close();fos=null;}catch(Exception e){e.printStackTrace();}
}
if(a!=null){
try{a.close();a=null;}catch(Exception e){e.printStackTrace();}
}
}
}
/**
* ?????
*/
public static void deCompress(String sourceFile??String destDir) throws Exception{
//????????·??????"/"????""
char lastChar = destDir.charAt(destDir.length()-1);
if(lastChar!='/'&&lastChar!='\'){
destDir += File.separator;
}
//??????????????????????
String type = sourceFile.substring(sourceFile.lastIndexOf(".")+1);
if(type.equals("zip")){
DeCompressUtil.unzip(sourceFile?? destDir);
}else if(type.equals("rar")){
DeCompressUtil.unrar(sourceFile?? destDir);
}else{
throw new Exception("????zip??rar????????????");
}
}
}
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