一个zip压缩的问题

guo52123 2009-12-22 05:45:30


import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.util.Enumeration;

import org.apache.tools.zip.ZipEntry;

import org.apache.tools.zip.ZipFile;

import org.apache.tools.zip.ZipOutputStream;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**
*
* java文件操作工具类
*
* @author
*
* @version 2009-11-26
*/

public class ZipUtil {

protected static Logger log = LoggerFactory.getLogger(ZipUtil.class);
/**
*
* 压缩文件
*
* @param inputFileName
* 要压缩的文件或文件夹路径,例如:c:\\a.txt,c:\\a\
*
* @param outputFileName
* 输出zip文件的路径,例如:c:\\a.zip
*/

public static void zip(String inputFileName, String outputFileName)
throws Exception {
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(
outputFileName));

zip(out, new File(inputFileName), "");

log.debug("压缩完成!");

out.closeEntry();

out.close();

}

/**
*
* 压缩文件
*
* @param out
* org.apache.tools.zip.ZipOutputStream
*
* @param file
* 待压缩的文件
*
* @param base
* 压缩的根目录
*/

private static void zip(ZipOutputStream out, File file, String base)
throws Exception {

if (file.isDirectory()) {

File[] fl = file.listFiles();

base = base.length() == 0 ? "" : base + File.separator;

for (int i = 0; i < fl.length; i++) {

zip(out, fl[i], base + fl[i].getName());

}

} else {

out.putNextEntry(new ZipEntry(base));

log.debug("添加压缩文件:" + base);

FileInputStream in = new FileInputStream(file);

int b;

while ((b = in.read()) != -1) {

out.write(b);

}

in.close();

}

}

/**
*
* 解压zip文件
*
* @param zipFileName
* 待解压的zip文件路径,例如:c:\\a.zip
*
* @param outputDirectory
* 解压目标文件夹,例如:c:\\a\
*/

public static void unZip(String zipFileName, String outputDirectory)
throws Exception {

ZipFile zipFile = new ZipFile(zipFileName);

try {

Enumeration<?> e = zipFile.getEntries();

ZipEntry zipEntry = null;

createDirectory(outputDirectory, "");

while (e.hasMoreElements()) {

zipEntry = (ZipEntry) e.nextElement();

log.debug("解压:" + zipEntry.getName());

if (zipEntry.isDirectory()) {

String name = zipEntry.getName();

name = name.substring(0, name.length() - 1);

File f = new File(outputDirectory + File.separator + name);

f.mkdir();

log
.debug("创建目录:" + outputDirectory + File.separator
+ name);

} else {

String fileName = zipEntry.getName();

fileName = fileName.replace('\\', '/');

if (fileName.indexOf("/") != -1) {

createDirectory(outputDirectory, fileName.substring(0,
fileName.lastIndexOf("/")));

fileName = fileName.substring(
fileName.lastIndexOf("/") + 1, fileName
.length());

}

File f = new File(outputDirectory + File.separator
+ zipEntry.getName());

f.createNewFile();

InputStream in = zipFile.getInputStream(zipEntry);

FileOutputStream out = new FileOutputStream(f);

byte[] by = new byte[1024];

int c;

while ((c = in.read(by)) != -1) {

out.write(by, 0, c);

}

in.close();

out.close();

}

}

} catch (Exception ex) {

System.out.println(ex.getMessage());

} finally {

zipFile.close();

log.debug("解压完成!");

}

}

private static void createDirectory(String directory, String subDirectory) {

String dir[];

File fl = new File(directory);

try {

if (subDirectory == "" && fl.exists() != true) {

fl.mkdir();

} else if (subDirectory != "") {

dir = subDirectory.replace('\\', '/').split("/");

for (int i = 0; i < dir.length; i++) {

File subFile = new File(directory + File.separator + dir[i]);

if (subFile.exists() == false)

subFile.mkdir();

directory += File.separator + dir[i];

}

}

} catch (Exception ex) {

System.out.println(ex.getMessage());

}

}

/**
*
* 拷贝文件夹中的所有文件到另外一个文件夹
*
* @param srcDirector
* 源文件夹
*
* @param desDirector
* 目标文件夹
*/

public static void copyFileWithDirector(String srcDirector,
String desDirector) throws IOException {

(new File(desDirector)).mkdirs();

File[] file = (new File(srcDirector)).listFiles();

for (int i = 0; i < file.length; i++) {

if (file[i].isFile()) {

log.debug("拷贝:" + file[i].getAbsolutePath() + "-->"
+ desDirector + "/" + file[i].getName());

FileInputStream input = new FileInputStream(file[i]);

FileOutputStream output = new FileOutputStream(desDirector
+ "/" + file[i].getName());

byte[] b = new byte[1024 * 5];

int len;

while ((len = input.read(b)) != -1) {

output.write(b, 0, len);

}

output.flush();

output.close();

input.close();

}

if (file[i].isDirectory()) {

log.debug("拷贝:" + file[i].getAbsolutePath() + "-->"
+ desDirector + "/" + file[i].getName());

copyFileWithDirector(srcDirector + "/" + file[i].getName(),
desDirector + "/" + file[i].getName());

}

}

}

/**
*
* 删除文件夹
*
* @param folderPath
* folderPath 文件夹完整绝对路径
*/

public static void delFolder(String folderPath){

// 删除完里面所有内容

delAllFile(folderPath);

String filePath = folderPath;

filePath = filePath.toString();

File myFilePath = new File(filePath);

// 删除空文件夹

myFilePath.delete();

}

/**
*
* 删除指定文件夹下所有文件
*
* @param path
* 文件夹完整绝对路径
*/

public static boolean delAllFile(String path) {

boolean flag = false;

File file = new File(path);

if (!file.exists()) {

return flag;

}

if (!file.isDirectory()) {

return flag;

}

String[] tempList = file.list();

File temp = null;

for (int i = 0; i < tempList.length; i++) {

if (path.endsWith(File.separator)) {

temp = new File(path + tempList[i]);

} else {

temp = new File(path + File.separator + tempList[i]);

}

if (temp.isFile()) {

temp.delete();

}

if (temp.isDirectory()) {

// 先删除文件夹里面的文件

delAllFile(path + "/" + tempList[i]);

// 再删除空文件夹

delFolder(path + "/" + tempList[i]);

flag = true;

}

}

return flag;

}

}


大家看看这段代码,压缩的部分,如果要压缩文件夹里面还有文件夹得话,应该怎么改?
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zl3450341 2009-12-22
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楼主问问周围同事呗
顶下
sean1203 2009-12-22
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swandragon 2009-12-22
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路过,up
guo52123 2009-12-22
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如果谁有ZIP工具类 分享一下 解决中文乱码问题的
guo52123 2009-12-22
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项目开发中遇到这个问题 ,大家帮帮忙
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