Java解压ZIP文件方法

下面的代码可以解压包含目录的ZIP文件.需要先去http://ant.apache.org/ivy/download.cgi下载 Apache Ant,并导入其中的ant.jar.

package com.test;

import java.io.File;
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;

public class T
{
    /*
     * 下载Apache Ant http://ant.apache.org/ivy/download.cgi 导入其中的ant.jar
     */
    public static void main(String[] args) throws IOException
    {
        // TODO Auto-generated method stub
        ZipFile zf = new ZipFile("D:/adf.zip");
        // ZIP文件
        String outDir = "D:/";
        // 输出路径
        Enumeration entries = zf.getEntries();
        while (entries.hasMoreElements())
        {
            ZipEntry entry = (ZipEntry) entries.nextElement();
            System.out.println(entry.getName());
            File f = new File(outDir + entry.getName());
            if (entry.isDirectory())
            {
                continue;
            }
            File parent = f.getParentFile();
            if (!parent.exists())
            {
                parent.mkdirs();
                //这里就会创建该文件所有的上级目录,所以上面isDirectory()不执行,直接continue
            }
            InputStream is = zf.getInputStream(entry);
            FileOutputStream fop = new FileOutputStream(outDir + entry.getName());
            int len = 0;
            byte[] bs = new byte[1024];
            while ((len = is.read(bs, 0, 1024)) > 0)
            {
                fop.write(bs, 0, len);
            }
            is.close();
            fop.close();

        }
    }

}