java实现zip压缩文件

在网上找到这几种方法，感觉不错，收集起来，方便大家使用

• jdk自带的包java.util.zip.ZipOutputStream，不足之处，文件（夹）名称带中文时，出现乱码问题，实现代码如下

/**
  * 功能：把 sourceDir 目录下的所有文件进行 zip 格式的压缩，保存为指定 zip 文件
  * @param sourceDir 如果是目录，eg：D:\\MyEclipse\\first\\testFile，则压缩目录下所有文件；
  *      如果是文件，eg：D:\\MyEclipse\\first\\testFile\\aa.zip，则只压缩本文件
  * @param zipFile 最后压缩的文件路径和名称,eg:D:\\MyEclipse\\first\\testFile\\aa.zip
  */
 public File doZip(String sourceDir, String zipFilePath)
 throws IOException {

  File file = new File(sourceDir);
  File zipFile = new File(zipFilePath);
  ZipOutputStream zos = null;
  try {
   // 创建写出流操作
   OutputStream os = new FileOutputStream(zipFile);
   BufferedOutputStream bos = new BufferedOutputStream(os);
   zos = new ZipOutputStream(bos);

   String basePath = null;

   // 获取目录
   if(file.isDirectory()) {
    basePath = file.getPath();
   }else {
    basePath = file.getParent();
   }

   zipFile(file, basePath, zos);
  }finally {
   if(zos != null) {
    zos.closeEntry();
    zos.close();
   }
  }

  return zipFile;
 }

 /**
  * @param source 源文件
  * @param basePath
  * @param zos
  */
 private void zipFile(File source, String basePath, ZipOutputStream zos)
 throws IOException {
  File[] files = null;
  if (source.isDirectory()) {
   files = source.listFiles();
  } else {
   files = new File[1];
   files[0] = source;
  }

  InputStream is = null;
  String pathName;
  byte[] buf = new byte[1024];
  int length = 0;
  try{
   for(File file : files) {
    if(file.isDirectory()) {
     pathName = file.getPath().substring(basePath.length() + 1) + "/";
     zos.putNextEntry(new ZipEntry(pathName));
     zipFile(file, basePath, zos);
    }else {
     pathName = file.getPath().substring(basePath.length() + 1);
     is = new FileInputStream(file);
     BufferedInputStream bis = new BufferedInputStream(is);
     zos.putNextEntry(new ZipEntry(pathName));
     while ((length = bis.read(buf)) > 0) {
      zos.write(buf, 0, length);
     }
    }
   }
  }finally {
   if(is != null) {
    is.close();
   }
  }

 }

• 使用org.apache.tools.zip.ZipOutputStream，代码如下

public class ZipCompressor {
    static final int BUFFER = 8192;   

    private File zipFile;   

    public ZipCompressor(String pathName) {
        zipFile = new File(pathName);
    }   

    public void compress(String srcPathName) {
        File file = new File(srcPathName);
        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);
            String basedir = "";
            compress(file, out, basedir);
            out.close();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }   

    private 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());
            this.compressDirectory(file, out, basedir);
        } else {
            System.out.println("压缩：" + basedir + file.getName());
            this.compressFile(file, out, basedir);
        }
    }   

    /** 压缩一个目录 */
    private 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 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);
        }
    }
} 

• 可以用ant中的org.apache.tools.ant.taskdefs.Zip来实现，更加简单

public class ZipCompressorByAnt {   

    private File zipFile;   

    public ZipCompressorByAnt(String pathName) {
        zipFile = new File(pathName);
    }   

    public void compress(String srcPathName) {
        File srcdir = new File(srcPathName);
        if (!srcdir.exists())
            throw new RuntimeException(srcPathName + "不存在！");   

        Project prj = new Project();
        Zip zip = new Zip();
        zip.setProject(prj);
        zip.setDestFile(zipFile);
        FileSet fileSet = new FileSet();
        fileSet.setProject(prj);
        fileSet.setDir(srcdir);
        //fileSet.setIncludes("**/*.java"); 包括哪些文件或文件夹 eg:zip.setIncludes("*.java");
        //fileSet.setExcludes(...); 排除哪些文件或文件夹
        zip.addFileset(fileSet);   

        zip.execute();
    }
}
测试一下
Java代码
package net.szh.zip;   

public class TestZip {
    public static void main(String[] args) {
        ZipCompressor zc = new  ZipCompressor("E:\\szhzip.zip");
        zc.compress("E:\\test");   

        ZipCompressorByAnt zca = new ZipCompressorByAnt("E:\\szhzipant.zip");
        zca.compress("E:\\test");
    }
}