由于工作的需要，经常要手动去打上线安装包，为了方便，自己写程序去帮助打包。使用过Unix或者Linux的人都基本上都用过tar打包以及gzip压缩，但在Windows下使用得最多的压缩还是RAR和Zip压缩吧
一、 tar打包、解包
在java的JDK中没有原生的tar归档类，需要下载开源的包： commons-compress-1.0.jar,所以
第一步是下载jar包，可以到www.findjar.com搜索并下载。
第二步导入到工程中；忽略
第三步编写源代码，在写代码之前使用介绍一下
//打包归档输出流
org.apache.commons.compress.archivers.tar.TarArchiveOutputStream
//解包归档输入流
org.apache.commons.compress.archivers.tar.TarArchiveInputStream
//增加打包归档的条目
void org.apache.commons.compress.archivers.tar.TarArchiveOutputStream.putArchiveEntry(ArchiveEntry arg0)
//设置归档的模式：
TarArchiveOutputStream.LONGFILE_GNU和TarArchiveOutputStream.LONGFILE_ERROR和TarArchiveOutputStream.LONGFILE_TRUNCATE
void org.apache.commons.compress.archivers.tar.TarArchiveOutputStream.setLongFileMode(int longFileMode)
//获取归档文件中的条目
TarArchiveEntry org.apache.commons.compress.archivers.tar.TarArchiveInputStream.getNextTarEntry() throws IOException
下面是打包的源代码：
/**
* tar 打包
* @param source 源文件
* @param dest 目标文件
*/
public static void tar(File source){
logger.info("开始对源文件["+source.getName()+"]打成tar包");
FileOutputStream out = null;
TarArchiveOutputStream tarOut = null;
String parentPath = source.getParent();
File dest = new File(parentPath + source.getName() + ".tar");
try{
out = new FileOutputStream(dest);
tarOut = new TarArchiveOutputStream(out);
//解决文件名过长
tarOut.setLongFileMode(TarArchiveOutputStream.LONGFILE_GNU);
tarPack(source, tarOut,"");
tarOut.flush();
tarOut.close();
logger.info("成功把源文件打为tar包,名称为:["+dest.getName()+"]");
}catch (Exception e) {
logger.error(e.getMessage(),e);
}finally{
try{
if(out != null){
out.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(tarOut != null){
tarOut.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
}
}
/**
* 归档
* @param source 源文件或者目录
* @param tarOut 归档流
* @param parentPath 归档后的目录或者文件路径
*/
public static void tarPack(File source,TarArchiveOutputStream tarOut,String parentPath){
if(source.isDirectory()){
tarDir(source,tarOut,parentPath);
}else if(source.isFile()){
tarFile(source,tarOut,parentPath);
}
}
/**
* 归档文件(非目录)
* @param source 源文件
* @param tarOut 归档流
* @param parentPath 归档后的路径
*/
public static void tarFile(File source,TarArchiveOutputStream tarOut,String parentPath){
TarArchiveEntry entry = new TarArchiveEntry(parentPath + source.getName());
BufferedInputStream bis = null;
FileInputStream fis = null;
try {
entry.setSize(source.length());
tarOut.putArchiveEntry(entry);
fis = new FileInputStream(source);
bis = new BufferedInputStream(fis);
int count = -1;
byte []buffer = new byte[1024];
while((count = bis.read(buffer, 0, 1024)) != -1){
tarOut.write(buffer, 0, count);
}
bis.close();
tarOut.closeArchiveEntry();
} catch (IOException e) {
logger.error(e.getMessage(),e);
}finally{
try {
if(bis != null){
bis.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
try {
if(fis != null){
fis.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
}
/**
* 归档目录
* @param sourceDir 原目录
* @param tarOut 归档流
* @param parentPath 归档后的父目录
*/
public static void tarDir(File sourceDir,TarArchiveOutputStream tarOut,String parentPath){
//归档空目录
if(sourceDir.listFiles().length < 1){
TarArchiveEntry entry = new TarArchiveEntry(parentPath + sourceDir.getName() + "\\");
try {
tarOut.putArchiveEntry(entry);
tarOut.closeArchiveEntry();
} catch (IOException e) {
logger.error(e.getMessage(),e);
}
}
//递归 归档
for (File file : sourceDir.listFiles()) {
tarPack(file, tarOut,parentPath + sourceDir.getName() + "\\");
}
}
以下解包的源代码
/**
* 解归档
* @param source 源归档tar文件
*/
public static void untar(File source){
TarArchiveInputStream tarIn = null;
FileInputStream fis = null;
String parentPath = source.getParent();
BufferedOutputStream bos = null;
FileOutputStream fos = null;
try{
fis = new FileInputStream(source);
tarIn = new TarArchiveInputStream(fis);
TarArchiveEntry entry = null;
while((entry = tarIn.getNextTarEntry()) != null){
File file = new File(parentPath + "\\" + entry.getName());
//为解决空目录
if(entry.isDirectory()){
file.mkdirs();
continue;
}
File parentDir = file.getParentFile();
if(!parentDir.exists()){
parentDir.mkdirs();
}
fos = new FileOutputStream(file);
bos = new BufferedOutputStream(fos);
int count = -1;
byte []buffer = new byte[1024];
while((count = tarIn.read(buffer, 0, buffer.length)) != -1){
bos.write(buffer, 0, count);
}
bos.flush();
bos.close();
fos.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}finally{
try{
if(fis != null){
fis.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(fos != null){
fos.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(bos != null){
bos.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(tarIn != null){
tarIn.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
}
}
Tar的非递归算法：
/**
* tar 打包(非递归)
*
* @param source 源文件
* @param dest 目标文件
*/
public static void tarNonRecursion(File source) {
logger.info("开始对源文件[" + source.getName() + "]打成tar包");
FileOutputStream out = null;
TarArchiveOutputStream tarOut = null;
String parentPath = source.getParent();
File dest = new File(parentPath + "/" + source.getName() + ".tar");
try {
out = new FileOutputStream(dest);
tarOut = new TarArchiveOutputStream(out, "GBK");
//解决文件名过长
tarOut.setLongFileMode(TarArchiveOutputStream.LONGFILE_GNU);
Stack<File> fileStack = new Stack<File>();
fileStack.push(source);
File curFile;
File preFile = null;
while (!fileStack.empty()) {
curFile = fileStack.peek();
File[] fileLists = curFile.listFiles();
if (curFile.isFile()
|| (preFile != null && (preFile.getParent().equals(curFile.getAbsolutePath())))
|| (fileLists.length == 0)) {
File popFile = fileStack.pop();
String filePath = popFile.getAbsolutePath();
filePath = filePath.replaceAll("[\\\\]", "/");
filePath = filePath.substring(parentPath.length() + 1);
preFile = curFile;
if (popFile.isFile()) {
filePath = filePath.substring(0, filePath.lastIndexOf("/"));
tarFile(popFile, tarOut, filePath + "/");
} else {
TarArchiveEntry entry = new TarArchiveEntry(filePath + "/");
try {
tarOut.putArchiveEntry(entry);
tarOut.closeArchiveEntry();
} catch (IOException e) {
logger.error(e.getMessage(), e);
}
}
} else {
for (File file : fileLists) {
fileStack.push(file);
}
}
}
tarOut.flush();
tarOut.close();
logger.info("成功把源文件打为tar包,名称为:[" + dest.getName() + "]");
} catch (Exception e) {
logger.error(e.getMessage(), e);
} finally {
try {
if (out != null) {
out.close();
}
} catch (Exception e) {
logger.error(e.getMessage(), e);
}
try {
if (tarOut != null) {
tarOut.close();
}
} catch (Exception e) {
logger.error(e.getMessage(), e);
}
}
}
二、 gzip压缩、解压
注意gzip不支持压缩目录的；Jdk里提供了类支持压缩文件；默认生成.gz文件
主要对应的Java类为：
//Gzip输入流
java.util.zip.GZIPInputStream
//Gzip输出流
java.util.zip.GZIPOutputStream
压缩源代码
/**
* gzip 压缩，跟源文件在相同目录中生成.gz文件
* @param source 源文件
*/
public static void gzip(File source){
logger.info("开始对源文件["+source.getName()+"]压缩成.gz包");
String dir = source.getParent();
File target = new File(dir + "\\" +source.getName() + ".gz");
FileInputStream fis = null;
FileOutputStream fos = null;
GZIPOutputStream gzipOS = null;
try{
fis = new FileInputStream(source);
fos = new FileOutputStream(target);
gzipOS = new GZIPOutputStream(fos);
int count = -1;
byte [] buffer = new byte[1024];
while((count = fis.read(buffer, 0, buffer.length)) != -1){
gzipOS.write(buffer, 0, count);
}
gzipOS.flush();
gzipOS.close();
logger.info("成功把源文件["+source.getName()+"]压缩为.gz包["+target.getName()+"]");
}catch (Exception e) {
logger.error(e.getMessage(),e);
}finally{
try{
if(fis!=null){
fis.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(fos!=null){
fos.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(gzipOS!=null){
gzipOS.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
}
}
解压.gz包源代码
/**
* 解压.gz包
* @param source 源.gz包
*/
public static void ungzip(File source){
GZIPInputStream gzipIS = null;
FileInputStream fis = null;
FileOutputStream fos = null;
BufferedOutputStream bos = null;
String fileName = source.getName();
fileName = fileName.substring(0, fileName.lastIndexOf("."));
try{
fis = new FileInputStream(source);
gzipIS = new GZIPInputStream(fis);
File target = new File(source.getParent() + "\\" + fileName);
fos = new FileOutputStream(target);
bos = new BufferedOutputStream(fos);
int count = -1;
byte []buffer = new byte[1024];
while((count = gzipIS.read(buffer, 0, buffer.length)) != -1){
bos.write(buffer, 0, count);
}
bos.flush();
}catch (Exception e) {
logger.error(e.getMessage(),e);
}finally{
try{
if(fis!=null){
fis.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(fos!=null){
fos.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(bos != null){
bos.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(gzipIS!=null){
gzipIS.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
}
}
三、 zip压缩、解压
Jdk提供代码技术支持，tar打包跟zip压缩类似的。
在Jdk中主要的类为：
java.util.zip.ZipOutputStream
java.util.zip.ZipInputStream
压缩源代码
/**
* 使用zip压缩文件
* @param source 源文件或者文件夹
*/
public static void zip(File source){
String dir = source.getParent();
File target = new File(dir + "\\" +source.getName() + ".zip");
FileOutputStream fos = null;
ZipOutputStream zipos = null;
try{
fos = new FileOutputStream(target);
zipos = new ZipOutputStream(fos);
zipFile(source, zipos, "");
//必须要下面一步，否则会报no such file or directory错误
zipos.close();
}catch (Exception e) {
logger.error(e.getMessage(),e);
}finally{
try {
if(fos != null){
fos.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
try {
if(zipos != null){
zipos.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
}
/**
* 递归压缩文件或者文件夹
* @param source 源文件
* @param zipos zip输出流
* @param parentPath 路径
*/
public static void zipFile(File source,ZipOutputStream zipos,String parentPath){
FileInputStream fis = null;
BufferedInputStream bis = null;
try {
//增加目录
if(source.isDirectory()){
File[]files = source.listFiles();
if(files.length < 1){
ZipEntry entry = new ZipEntry(parentPath + source.getName() + "/");
zipos.putNextEntry(entry);
}
for (File file : files) {
zipFile(file, zipos, parentPath + source.getName() + "/");
}
}else if(source.isFile()){
fis = new FileInputStream(source);
bis = new BufferedInputStream(fis);
ZipEntry entry = new ZipEntry(parentPath + source.getName());
zipos.putNextEntry(entry);
int count = -1;
byte []buffer = new byte[1024];
while((count = bis.read(buffer, 0, buffer.length)) != -1){
zipos.write(buffer, 0, count);
}
fis.close();
bis.close();
}
} catch (IOException e) {
logger.error(e.getMessage(),e);
}finally{
try {
if(bis != null){
bis.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
try {
if(fis != null){
fis.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
}
解压源代码
/**
* 解压zip文件
* @param source 源.zip文件
*/
public static void unzip(File source){
ZipInputStream zipIn = null;
FileInputStream fis = null;
String parentPath = source.getParent();
System.out.println(parentPath);
BufferedOutputStream bos = null;
FileOutputStream fos = null;
try{
fis = new FileInputStream(source);
zipIn = new ZipInputStream(fis);
ZipEntry entry = null;
while((entry = zipIn.getNextEntry()) != null){
File file = new File(parentPath + "\\" + entry.getName());
//为了空目录的出现
if(entry.isDirectory()){
file.mkdirs();
continue;
}
File parentDir = file.getParentFile();
if(!parentDir.exists()){
parentDir.mkdirs();
}
fos = new FileOutputStream(file);
bos = new BufferedOutputStream(fos);
int count = -1;
byte []buffer = new byte[1024];
while((count = zipIn.read(buffer, 0, buffer.length)) != -1){
bos.write(buffer, 0, count);
}
bos.flush();
bos.close();
fos.close();
}
zipIn.close();
}catch (Exception e) {
logger.error(e.getMessage(),e);
}finally{
try{
if(fis != null){
fis.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(fos != null){
fos.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(bos != null){
bos.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
try{
if(zipIn != null){
zipIn.close();
}
}catch (Exception e) {
logger.error(e.getMessage(),e);
}
}
}
