JDK中自带的ZipOutputStream在压缩文件时,如果文件名中有中文,则压缩后的

zip文件打开时发现中文文件名变成乱码.

解决的方法是使用apache-ant-zip.jar包(见附件)中的ZipOutputStream和ZipEntry.

即,导入类:

import org.apache.tools.zip.ZipEntry;

import org.apache.tools.zip.ZipOutputStream;

并且注意,压缩之前调用ZipOutputStream的out.setEncoding(System.getProperty("sun.jnu.encoding"));方法,

系统参数sun.jnu.encoding表示获取当前系统中的文件名的编码方式.这里将ZipOutputStream的文件名编码方式

设置成系统的文件名编码方式.

解压时,直接使用JDK原来的ZipInputStream即可.

但是有个需要注意的地方是,在读取ZIP文件之前,需要设置:

System.setProperty("sun.zip.encoding", System.getProperty("sun.jnu.encoding"));

将系统的ZIP编码格式设置为系统文件名编码方式,否则解压时报异常.

(网上,还有修改ZipInputStream源码的方式貌似太麻烦了,参考:http://zwllxs.iteye.com/blog/871260)

ZIP代码参考http://szhnet.iteye.com/blog/199059,有修改.

package io;

import java.io.BufferedInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.util.zip.CRC32;

import java.util.zip.CheckedOutputStream;

import org.apache.tools.zip.ZipEntry;

import org.apache.tools.zip.ZipOutputStream;

public class Zip

{

static final int BUFFER = 8192;

public Zip()

{

}

private static void compress(File file, ZipOutputStream out, String basedir)

{

/* 判断是目录还是文件 */

if (file.isDirectory())

{

// System.out.println("压缩：" + basedir + file.getName());

compressDirectory(file, out, basedir);

}

else

{

// System.out.println("压缩：" + basedir + file.getName());

compressFile(file, out, basedir);

}

}

/** 压缩一个目录 */

private static void compressDirectory(File dir, ZipOutputStream out, String basedir)

{

if (!dir.exists()) return;

File[] files = dir.listFiles();

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

{

/* 递归 */

compress(files[i], out, basedir + dir.getName() + "/");

}

}

/** 压缩一个文件 */

private static void compressFile(File file, ZipOutputStream out, String basedir)

{

if (!file.exists())

{

return;

}

try

{

BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));

ZipEntry entry = new ZipEntry(basedir + file.getName());

out.putNextEntry(entry);

int count;

byte data[] = new byte[BUFFER];

while ((count = bis.read(data, 0, BUFFER)) != -1)

{

out.write(data, 0, count);

}

bis.close();

}

catch (Exception e)

{

throw new RuntimeException(e);

}

}

public static void zip(String srcPathName, String zipFileName)

{

File file = new File(srcPathName);

File zipFile = new File(zipFileName);

if (!file.exists()) throw new RuntimeException(srcPathName + "不存在！");

try

{

FileOutputStream fileOutputStream = new FileOutputStream(zipFile);

CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream, new CRC32());

ZipOutputStream out = new ZipOutputStream(cos);

out.setEncoding(System.getProperty("sun.jnu.encoding"));//设置文件名编码方式

String basedir = "";

compress(file, out, basedir);

out.close();

}

catch (Exception e)

{

throw new RuntimeException(e);

}

}

public static void main(String[] args)

{

Zip.zip("D:\\D\\dll", "D:\\D\\dll.zip");

}

}

UnZip代码:

package io;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.zip.ZipEntry;

import java.util.zip.ZipInputStream;

public class UnZip

{

public static void unzip(String zipFilePath, String destDir)

{

System.setProperty("sun.zip.encoding", System.getProperty("sun.jnu.encoding")); //防止文件名中有中文时出错

//System.out.println(System.getProperty("sun.zip.encoding")); //ZIP编码方式

//System.out.println(System.getProperty("sun.jnu.encoding")); //当前文件编码方式

//System.out.println(System.getProperty("file.encoding")); //这个是当前文件内容编码方式

File dir = new File(destDir);

// create output directory if it doesn't exist

if (!dir.exists()) dir.mkdirs();

FileInputStream fis;

// buffer for read and write data to file

byte[] buffer = new byte[1024];

try

{

fis = new FileInputStream(zipFilePath);

ZipInputStream zis = new ZipInputStream(fis);

ZipEntry ze = zis.getNextEntry();

while (ze != null)

{

String fileName = ze.getName();

File newFile = new File(destDir + File.separator + fileName);

//System.out.println("Unzipping to " + newFile.getAbsolutePath());

// create directories for sub directories in zip

new File(newFile.getParent()).mkdirs();

FileOutputStream fos = new FileOutputStream(newFile);

int len;

while ((len = zis.read(buffer)) > 0)

{

fos.write(buffer, 0, len);

}

fos.close();

// close this ZipEntry

zis.closeEntry();

ze = zis.getNextEntry();

}

// close last ZipEntry

zis.closeEntry();

zis.close();

fis.close();

}

catch (IOException e)

{

e.printStackTrace();

}

}

public static void main(String[] args)

{

String zipFilePath = "D:\\D\\dll.zip";

String destDir = "D:\\D\\dll_zip";

UnZip.unzip(zipFilePath, destDir);

}

}