java 解压 Zip文件乱码的问题

[f250303748]

我写了一段解压Zip的代码，但是如果Zip文件里面有中文文件名解压出来就是乱码。
请问有没有解决的办法？

public void releaseZipToFile(String sourceZip, String outFileName)
			throws IOException {
		ZipFile zfile = new ZipFile(sourceZip);
		Enumeration zList = zfile.entries();
		ZipEntry ze = null;
		byte[] buf = new byte[1024];
		while (zList.hasMoreElements()) {

			ze = (ZipEntry) zList.nextElement();
			if (ze.isDirectory()) {
				continue;
			}

			OutputStream os = new BufferedOutputStream(new FileOutputStream(
					getRealFileName(outFileName, ze.getName())));
			InputStream is = new BufferedInputStream(zfile.getInputStream(ze));
			int readLen = 0;
			is.close();
			os.close();
			
			System.out.println("Extracted: " + ze.getName());
		}
		zfile.close();
		File file = new File(sourceZip);
		file.delete();
	}

[f250303748]

请问还有别的解决办法吗？或者给出具体的代码

[f250303748]

帮帮解决一下啊

[胡须棉花糖]

名字解码

[f250303748]

有人能给出解决方案嘛？

[lord_is_layuping]

在java.util.zip包也可以用来处理解压问题,不过对含有中文文件名的压缩包无能为力,这是因为ZipOutputStream压缩和解压 ZIP文件对文件名都是以UTF-8编码方式来处理的,而我们用winzip压缩文件对文件名只会以ASCII编码方式来处理.所以会出现编码不一致的问题.
有两种解决方案:
第一种就是修改ZipOutputStream,参考修改如下:(这个我没有测试过)

// ZipEntry e = createZipEntry(getUTF8String(b, 0, len));
ZipEntry e=null;
try
{
    if (this.encoding.toUpperCase().equals("UTF-8"))
        e=createZipEntry(getUTF8String(b, 0, len));
    else
        e=createZipEntry(new String(b,0,len,this.encoding));
}catch(Exception byteE) {
    e=createZipEntry(getUTF8String(b, 0, len));
}

再加一个

public ZipInputStream(InputStream in,String encoding) {
    super(new PushbackInputStream(in,512),new Inflater(true),512);
    usesDefaultInflater = true;
    if(in == null) {
        throw new NullPointerException("in is null");
    }
    this.encoding=encoding;
}

第二种方法就是用ant包,可以在官方网站http://ant.apache.org/bindownload.cgi下载,把ant.jar导入到类中.
参考用例如下:

public void unzip(String zipFileName,String outputDirectory) throws Exception{
try {
    org.apache.tools.zip.ZipFile zipFile = new org.apache.tools.zip.ZipFile(zipFileName);
    java.util.Enumeration e = zipFile.getEntries();
    org.apache.tools.zip.ZipEntry zipEntry = null;
    while (e.hasMoreElements()){
        zipEntry = (org.apache.tools.zip.ZipEntry)e.nextElement();
        System.out.println("unziping "+zipEntry.getName());
        if (zipEntry.isDirectory()){
            String name=zipEntry.getName();
            name=name.substring(0,name.length()-1);
            System.out.println("输出路径："+outputDirectory+File.separator+name);
            File f1=new File(outputDirectory+File.separator);
f1.mkdir();
            File f=new File(outputDirectory+File.separator+name);
            f.mkdir();
            System.out.println("创建目录："+outputDirectory+File.separator+name);
        }else{
            File f=new File(outputDirectory+File.separator+zipEntry.getName());
            f.createNewFile();
            InputStream in = zipFile.getInputStream(zipEntry);
            FileOutputStream out=new FileOutputStream(f);
            //--------解决了图片失真的情况
            int c;
            byte[] by=new byte[1024];
            while((c=in.read(by)) != -1){
                out.write(by,0,c);
            }
            out.close();
            in.close();
        }
    }
}
catch (Exception ex){
}
} 

[yzwlord]

org.apache.tools.zip包下的zip工具可以解决,引入ant.jar