Java程序实现压缩某目录

public class TestZip {

public static String SERPEROT = /

public static int BUFFER =

public static void main(String args[]){

zip( e:/hello/ e:/hello zip )

}

public static void zip(String srcFile String descFile){

ZipOutputStream zos = null

FileOutputStream fos = null

File file = null

try {

fos = new FileOutputStream(descFile)

zos = new ZipOutputStream(fos)

file = new File(srcFile)

String folder = srcFile substring(srcFile lastIndexOf( / ) + srcFile length())

zip(zos file folder)

} catch (FileNotFoundException e) {

e printStackTrace()

}finally{

笑雀铅try{

if(zos != null){zos close()}

if(fos != null){fos close()}

岁雹}catch(Exception e){

e printStackTrace()

}

}

}

private static void zip(ZipOutputStream descFile File srcFile String srcfolder){

FileInputStream fis = null

System out println(srcFile isDirectory())

try{

if(srcFile isDirectory()){

File[] files = srcFile listFiles()

descFile putNextEntry(new ZipEntry(srcfolder + / ))//是压缩包里面的路径

　碰好　srcfolder = srcfolder length() == ? : srcfolder + /

System out println(srcfolder)

for(int i= i<files lengthi++){

zip(descFile files[i] srcfolder + files[i] getName())

}

}else{

descFile putNextEntry(new ZipEntry(srcfolder))

fis = new FileInputStream(srcFile)

byte[] bytes = new byte[ ]

int n =

while((n = fis read(bytes)) != ){

descFile write(bytes n)

}

}

}catch(Exception e){

e printStackTrace()

}finally{

try{

if(fis != null){fis close()}

}catch(Exception e){

e printStackTrace()

}

}

}

lishixinzhi/Article/program/Java/hx/201311/25760

public static void findFileList(File dir,HashSet dirs,HashSet fileNames ) {

if (!dir.exists() || !dir.isDirectory()) {// 判断是否存在目录

return

}

String[] files = dir.list()//裂蔽 读取目录下的所有目录文肆兆州件信息

for (int i = 0i <files.lengthi++) {// 循环，添加文件名或回调自身

File file = new File(dir, files[i])

if (file.isFile() &&file.getName().startsWith("exam"猜姿)) {// 如果文件

fileNames.add(dir + "\\" + file.getName())

} else {// 如果是目录

dirs.add(dir)

findFileList(file,dirs,fileNames)// 回调自身继续查询

}

}

}

public static void main(String[] args) {

HashSet dirs = new HashSet()

HashSet fileNames = new HashSet()

findFileList(new File("D:\\zhidao"),dirs,fileNames)

System.out.println("目录:"+dirs)

System.out.println("exam开头的文件:"+fileNames)

}

package cn.itcast.other

import java.io.File

public class Demo1 {

public static void main(String[] args) {

/早亮* File dir = new File("F:\\project\\day22")

listFiles1(dir, "|--")*/

File dir = new File("F:\\aa")

deleteDir(dir)

}删除一个非空的目

//

public static void deleteDir(File dir){

File[] files = dir.listFiles()//列出所有子文件

for(File file: files){

if(file.isFile()){

file.delete()

}else if(file.isDirectory()){

deleteDir(file)

}

}

dir.delete()

}

//列出一个文件夹中所有符合条件的文件和目录陆简宽咐闭。

public static void listFiles1(File dir,String space){

File[] files = dir.listFiles()

for(File file : files ){

if(file.isFile()){

System.out.println(space+file.getName())

}else if(file.isDirectory()){

System.out.println(space+file.getName())

listFiles1(file,"| "+space)

}

}

}

}

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