Java压缩解压缩工具类

Java压缩解压缩工具类

本文实例为大家分享了java压缩解压缩工具类的具体代码，供大家参考，具体内容如下

package com.wdy.tools.utils.pressuitl;

import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.Fihttp://leNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.util.zip.ZipEntry;

import java.util.zip.ZipFile;

import java.util.zip.ZipInputStream;

import java.util.zip.ZipOutputStream;

import org.apache.commons.logging.Log;

import com.wdy.tools.utils.LogUtil;

/**

* 压缩/解压缩工具类（zip格式）

*

* @author wdy

* @date 2016-08-23

*/

public class PressUtil {

private static final Log log = LogUtil.getLog(PressUtil.class);

public static void main(String[] args) {

// PressUtil.ZipMultiFile("d:\\nwp_trans\\nwp_h\\", "d:\\nwp_trans\\nwp_h\\wdy.zip");

String sourceFilePath = "d:\\nwp_trans\\nwp_h\\";

String zipFilePath = "d:\\nwp_trans\\nwp_h\\";

String fileName = "wdy";

boolean flag = PressUtil.fileToZip(sourceFilePath, zipFilePath, fileName);

if(flag){

log.info("文件打包成功!");

}else{

log.info("文件打包失败!");

}

}

/**

* 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(不包括扩展名)

* @return

*/

@SuppressWarnings("resource")

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){

log.info("待压缩的文件目录："+sourceFilePath+"不存在.");

}else{

try {

File zipFile = new File(zipFilePath + "/" + fileName +".zip");

if(zipFile.exists()){

log.info(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){

log.info("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=0;i

//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);

fIbmvE } 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;

}

/**

* 压缩单个文件

* @param filePath 要被压缩的文件的全路径，包含文件名d:/hello.txt

* @param zipPath 压缩后的全路径，包含文件名d:/hello.zip

*/

public static void zipOneFile(String filePath, String zipPath) {

try {

File file = new File(filePath);

File zipFile = new File(zipPath);

InputStream input = new FileInputStream(file);

ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFilhttp://e));

zipOut.putNextEntry(new ZipEntry(file.getName()));

int temp = 0;

while ((temp = input.read()) != -1) {

zipOut.write(temp);

}

input.close();

zipOut.close();

} catch (Exception e) {

e.printStackTrace();

}

}

}

//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);

fIbmvE } 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;

}

/**

* 压缩单个文件

* @param filePath 要被压缩的文件的全路径，包含文件名d:/hello.txt

* @param zipPath 压缩后的全路径，包含文件名d:/hello.zip

*/

public static void zipOneFile(String filePath, String zipPath) {

try {

File file = new File(filePath);

File zipFile = new File(zipPath);

InputStream input = new FileInputStream(file);

ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFilhttp://e));

zipOut.putNextEntry(new ZipEntry(file.getName()));

int temp = 0;

while ((temp = input.read()) != -1) {

zipOut.write(temp);

}

input.close();

zipOut.close();

} catch (Exception e) {

e.printStackTrace();

}

}

}

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