zipUtil

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import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.RandomAccessFile;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;

public class ZipTool {

 /**
  * 压缩文件
  *
  * @param zipFileName
  *            保存的压缩包文件路径
  * @param inputFile
  *            需要压缩的文件夹或者文件路径
  * @throws Exception
  */
 public static void zip(String zipFileName, String filePath, boolean isDelete)
   throws Exception {

  zip(zipFileName, new File(filePath), isDelete);
 }

 @SuppressWarnings("resource")
 public static void zip(String zipFileName, File inputFile, boolean isDelete)
   throws Exception {
  FileUtils.createDictionary(zipFileName);
  ZipOutputStream out = new ZipOutputStream(new FileOutputStream(
    zipFileName));

  if (!inputFile.exists()) {
   throw new FileNotFoundException("在指定路径未找到需要压缩的文件！");
  }

  zip(out, inputFile, "", isDelete);// 递归压缩方法
  System.out.println("Zip Done.");
  out.close();
 }

 /**
  * 递归压缩方法
  *
  * @param out
  *            压缩包输出流
  * @param f
  *            需要压缩的文件
  * @param base
  *            压缩的路径
  * @throws Exception
  */
 private static void zip(ZipOutputStream out, File f, String base,
   boolean isDelete) throws Exception {
  String path = f.getPath();
  System.out.println("Zipping : " + f.getPath()); // 记录日志，开始压缩
  if (f.isDirectory()) { // 如果是文件夹，则获取下面的所有文件
   File[] fl = f.listFiles();
   out.putNextEntry(new ZipEntry(base + "/"));
   base = base.length() == 0 ? "" : base + "/";
   for (int i = 0; i < fl.length; i++) {
    zip(out, fl[i], base + fl[i].getName(), isDelete);
   }
  } else { // 如果是文件，则压缩
   out.putNextEntry(new ZipEntry(base)); // 生成下一个压缩节点
   FileInputStream in = new FileInputStream(f); // 读取文件内容
   int b;
   while ((b = in.read()) != -1) {
    out.write(b); // 写入到压缩包
   }
   in.close();
  }
  if (isDelete) {
   FileUtils.deleteFile(new File(path));
  }
 }

 public static void unZip(String zipFilePath, String fileSavePath,
   boolean isDelete) throws Exception {

  /*
   * if (!fileSavePath.endsWith("//")) { fileSavePath += "//"; }
   */

  File file = new File(zipFilePath);
  File savePath = new File(fileSavePath);

  // 验证待解压文件是否存在
  if (!file.exists()) {
   throw new FileNotFoundException("在指定路径未找到ZIP压缩文件！");
  }

  // 创建解压缩目录
  if (!savePath.exists()) {
   savePath.mkdirs();
  }

  ZipInputStream zis = new ZipInputStream(new FileInputStream(file));
  FileOutputStream fos = null;
  ZipEntry entry = null;
  int b;

  while ((entry = zis.getNextEntry()) != null) {

   FileUtils.createDictionary(fileSavePath + entry.getName());
   file = new File(fileSavePath + entry.getName());
   if (entry.isDirectory()) {
    // 目录
    System.out.println("create dir : " + file.getPath());
    file.mkdirs();
   } else {
    // 文件
    System.out.println("create file: " + file.getPath());
    /*
     * RandomAccessFile rf = new RandomAccessFile(file, "rwd");
     * rf.seek(0); while ((b = zis.read()) != -1) { //fos.write(b);
     * rf.write(b); } rf.close();
     */

    fos = new FileOutputStream(file);
    while ((b = zis.read()) != -1) {
     fos.write(b);
    }
    fos.close();
   }
  }

  zis.close();
  if (isDelete) {
   new File(zipFilePath).delete();
  }

  System.out.println("unZip Done.");

 }

 public void randomAccessFile(String file) throws Exception {
  RandomAccessFile f = new RandomAccessFile(file, "rw");
  System.out.println("File.lelngth:" + (f.length()) + "B");
  System.out.println("File PointPosition:" + f.getFilePointer());
  f.seek(f.length());
  f.writeBoolean(true);
  f.writeBoolean(false);
  f.writeChar('a');
  f.writeChars("hello!");
  System.out.println("File Length;" + (f.length()) + "B");
  f.seek(0);
  System.out.println(f.readBoolean());
  System.out.println(f.readBoolean());
  System.out.println(f.readLine());
  f.close();
 }

 public void chinesewrit(String toAppend) {
  try {
   // 写入
   int i = 0;
   String record = new String();
   String toCn = null;
   // 处理中文问题
   toCn = new String(toAppend.getBytes("GBK"), "ISO8859_1");
   RandomAccessFile rf = new RandomAccessFile("c://aaa.txt", "rw");
   rf.seek(rf.length());
   rf.writeBytes(toCn + "/n");
   rf.close();
   // 读取
   RandomAccessFile rf2 = new RandomAccessFile("c:/aaa.txt", "r");
   String outCn = null;
   while ((record = rf2.readLine()) != null) {
    i++;
    // 处理中文问题
    outCn = new String(record.getBytes("ISO8859_1"), "GBK");
    System.out.println("Line " + i + ":" + outCn);
   }
   rf2.close();
  } catch (Exception e) {
   e.printStackTrace();
  }
 }

}