public void getZipFiles(String zipFile, String destFolder) throws IOException {
BufferedOutputStream dest = null
ZipInputStream zis = new ZipInputStream(
new BufferedInputStream(
new FileInputStream(zipFile)))
ZipEntry entry
while (( entry = zis.getNextEntry() ) != null) {
System.out.println( "Extracting: " + entry.getName() )
int count
byte data[] = new byte[BUFFER]
if (entry.isDirectory()) {
new File( destFolder + "/" + entry.getName() ).mkdirs()
continue
} else {
int di = entry.getName().lastIndexOf( '/' )
if (di != -1) {
new File( destFolder + "/" + entry.getName()
.substring( 0, di ) ).mkdirs()
}
}
FileOutputStream fos = new FileOutputStream( destFolder + "/"
+ entry.getName() )
dest = new BufferedOutputStream( fos )
while (( count = zis.read( data ) ) != -1)
dest.write( data, 0, count )
dest.flush()
dest.close()
}
}
rar的只能用第三方api,比如junrar
1.代码如下:[java] view plain copy
<span style="font-size:18pxbackground-color: rgb(204, 204, 204)">package cn.gov.csrc.base.util
import java.io.BufferedInputStream
import java.io.BufferedOutputStream
import java.io.File
import java.io.FileInputStream
import java.io.FileNotFoundException
import java.io.FileOutputStream
import java.io.IOException
import java.util.zip.ZipEntry
import java.util.zip.ZipOutputStream
/**
* 将文件夹下面的文件
* 打包成zip压缩文件
*
* @author admin
*
*/
public final class FileToZip {
private FileToZip(){}
/**
* 将存放在sourceFilePath目录下的源文件,打包成fileName名称的zip文件,并存放到zipFilePath路径下
* @param sourceFilePath :待压缩的文件路径
* @param zipFilePath :压缩后存放路径
* @param fileName :压缩后文件的名称
* @return
*/
public static boolean fileToZip(String sourceFilePath,String zipFilePath,String fileName){
boolean flag = false
File sourceFile = new File(sourceFilePath)
FileInputStream fis = null
BufferedInputStream bis = null
FileOutputStream fos = null
ZipOutputStream zos = null
if(sourceFile.exists() == false){
System.out.println("待压缩的文件目录:"+sourceFilePath+"不存在.")
}else{
try {
File zipFile = new File(zipFilePath + "/" + fileName +".zip")
if(zipFile.exists()){
System.out.println(zipFilePath + "目录下存在名字为:" + fileName +".zip" +"打包文件.")
}else{
File[] sourceFiles = sourceFile.listFiles()
if(null == sourceFiles || sourceFiles.length<1){
System.out.println("待压缩的文件目录:" + sourceFilePath + "里面不存在文件,无需压缩.")
}else{
fos = new FileOutputStream(zipFile)
zos = new ZipOutputStream(new BufferedOutputStream(fos))
byte[] bufs = new byte[1024*10]
for(int i=0i<sourceFiles.lengthi++){
//创建ZIP实体,并添加进压缩包
ZipEntry zipEntry = new ZipEntry(sourceFiles[i].getName())
zos.putNextEntry(zipEntry)
//读取待压缩的文件并写进压缩包里
fis = new FileInputStream(sourceFiles[i])
bis = new BufferedInputStream(fis, 1024*10)
int read = 0
while((read=bis.read(bufs, 0, 1024*10)) != -1){
zos.write(bufs,0,read)
}
}
flag = true
}
}
} catch (FileNotFoundException e) {
e.printStackTrace()
throw new RuntimeException(e)
} catch (IOException e) {
e.printStackTrace()
throw new RuntimeException(e)
} finally{
//关闭流
try {
if(null != bis) bis.close()
if(null != zos) zos.close()
} catch (IOException e) {
e.printStackTrace()
throw new RuntimeException(e)
}
}
}
return flag
}
public static void main(String[] args){
String sourceFilePath = "D:\\TestFile"
String zipFilePath = "D:\\tmp"
String fileName = "12700153file"
boolean flag = FileToZip.fileToZip(sourceFilePath, zipFilePath, fileName)
if(flag){
System.out.println("文件打包成功!")
}else{
System.out.println("文件打包失败!")
}
}
}
</span>
2.结果如下:
文件打包成功!
3.到D:/tmp下查看,你会发现生成了一个zip压缩包.
直接通过工具类进行解压或者压缩文件即可。import java.io.BufferedInputStream
import java.io.BufferedOutputStream
import java.io.Closeable
import java.io.File
import java.io.FileOutputStream
import java.io.IOException
import java.io.InputStream
import java.util.Enumeration
import java.util.zip.ZipEntry
import java.util.zip.ZipFile
/**
*
* @author gdb
*/
public class ZipUtilAll {
public static final int DEFAULT_BUFSIZE = 1024 * 16
/**
* 解压Zip文件
*
* @param srcZipFile
* @param destDir
* @throws IOException
*/
public static void unZip(File srcZipFile, String destDir) throws IOException
{
ZipFile zipFile = new ZipFile(srcZipFile)
unZip(zipFile, destDir)
}
/**
* 解压Zip文件
*
* @param srcZipFile
* @param destDir
* @throws IOException
*/
public static void unZip(String srcZipFile, String destDir) throws IOException
{
ZipFile zipFile = new ZipFile(srcZipFile)
unZip(zipFile, destDir)
}
/**
* 解压Zip文件
*
* @param zipFile
* @param destDir
* @throws IOException
*/
public static void unZip(ZipFile zipFile, String destDir) throws IOException
{
Enumeration<? extends ZipEntry>entryEnum = zipFile.entries()
ZipEntry entry = null
while (entryEnum.hasMoreElements()) {
entry = entryEnum.nextElement()
File destFile = new File(destDir + entry.getName())
if (entry.isDirectory()) {
destFile.mkdirs()
}
else {
destFile.getParentFile().mkdirs()
InputStream eis = zipFile.getInputStream(entry)
System.out.println(eis.read())
write(eis, destFile)
}
}
}
/**
* 将输入流中的数据写到指定文件
*
* @param inputStream
* @param destFile
*/
public static void write(InputStream inputStream, File destFile) throws IOException
{
BufferedInputStream bufIs = null
BufferedOutputStream bufOs = null
try {
bufIs = new BufferedInputStream(inputStream)
bufOs = new BufferedOutputStream(new FileOutputStream(destFile))
byte[] buf = new byte[DEFAULT_BUFSIZE]
int len = 0
while ((len = bufIs.read(buf, 0, buf.length)) >0) {
bufOs.write(buf, 0, len)
}
} catch (IOException ex) {
throw ex
} finally {
close(bufOs, bufIs)
}
}
/**
* 安全关闭多个流
*
* @param streams
*/
public static void close(Closeable... streams)
{
try {
for (Closeable s : streams) {
if (s != null)
s.close()
}
} catch (IOException ioe) {
ioe.printStackTrace(System.err)
}
}
/**
* @param args
* @throws java.lang.Exception
*/
public static void main(String[] args) throws Exception
{
// unZip(new File(ZipDemo.class.getResource("D:/123/HKRT-B2B.zip").toURI()), "D:/123/")
unZip("D:/123/123.zip", "D:/123/")
// new File()
}
}