通過java實現對zip和rar文件的解壓縮
package com.svse.test;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
import de.innosystec.unrar.Archive;
import de.innosystec.unrar.rarfile.FileHeader;
/**
* zip和rar解壓縮工具類
* @author lenovo
*
*/
public class ZipAndRarTools {
/**
* 解壓rar
* @param sourceRarPath 需要解壓的rar文件全路徑
* @param destDirPath 需要解壓到的文件目錄
* @throws Exception
*/
public static void unrar(String sourceRarPath, String destDirPath) throws Exception {
File sourceRar=new File(sourceRarPath);
File destDir=new File(destDirPath);
Archive archive = null;
FileOutputStream fos = null;
System.out.println("Starting 開始解壓...");
try {
archive = new Archive(sourceRar);
FileHeader fh = archive.nextFileHeader();
int count = 0;
File destFileName = null;
while (fh != null) {
System.out.println((++count) + ") " + fh.getFileNameString());
String compressFileName = fh.getFileNameString().trim();
destFileName = new File(destDir.getAbsolutePath() + "/" + compressFileName);
if (fh.isDirectory()) {
if (!destFileName.exists()) {
destFileName.mkdirs();
}
fh = archive.nextFileHeader();
continue;
}
if (!destFileName.getParentFile().exists()) {
destFileName.getParentFile().mkdirs();
}
fos = new FileOutputStream(destFileName);
archive.extractFile(fh, fos);
fos.close();
fos = null;
fh = archive.nextFileHeader();
}
archive.close();
archive = null;
System.out.println("Finished 解壓完成!");
} catch (Exception e) {
throw e;
} finally {
if (fos != null) {
try {
fos.close();
fos = null;
} catch (Exception e) {
}
}
if (archive != null) {
try {
archive.close();
archive = null;
} catch (Exception e) {
}
}
}
}
/**
* 解壓Zip文件
* @param zipFileName 需要解壓縮的文件位置
* @param descFileName 將文件解壓到某個路徑
* @throws IOException
*/
public static void unZip(String zipFileName,String descFileName) throws IOException{
System.out.println("文件解壓開始...");
String descFileNames=descFileName;
if(!descFileNames.endsWith(File.separator)){
descFileNames=descFileNames+File.separator;
}
try {
ZipFile zipFile=new ZipFile(zipFileName);
ZipEntry entry=null;
String entryName=null;
String descFileDir=null;
byte[] buf=new byte[4096];
int readByte=0;
@SuppressWarnings("rawtypes")
Enumeration enums=zipFile.getEntries();
while(enums.hasMoreElements()){
entry =(ZipEntry) enums.nextElement();
entryName=entry.getName();
descFileDir=descFileNames+entryName;
if(entry.isDirectory()){
new File(descFileDir).mkdir();
continue;
}else{
new File(descFileDir).getParentFile().mkdir();
}
File file=new File(descFileDir);
OutputStream os=new FileOutputStream(file);
InputStream is=zipFile.getInputStream(entry);
while((readByte=is.read(buf))!=-1){
os.write(buf, 0, readByte);
}
os.close();
is.close();
}
zipFile.close();
System.out.println("文件解壓成功!");
} catch (Exception e) {
System.out.println("文件解壓失敗!");
e.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
//ZipAndRarTools.unrar(newFile("D:\\存放資料的壓縮包\\員工材料.rar"),newFile("D:\\存放資料的非壓縮包\\"));
ZipAndRarTools.unZip("D:\\rarTest\\jar包和配置文件資源.zip", "D:\\rarTest");
ZipAndRarTools.unrar("D:\\rarTest\\rar壓縮包.rar", "D:\\rarTest");
}
}