java zip打包与乱码的解决

应用场景:主要使用在对系统文件进行归档，如果中则需要对公文中的附件或正文进行打包归档

示例代码:
解决乱码的问题主要是引用apache的包ant.jar。然后注意下面红色代码部分，java自带的包中也有这两个类。如果乱码最好是采用apache的这两个类。这样才会有设置编码的zos.setEncoding("gbk")这个方法。这样就可解决java zip 打包的知码问题。

下面是演示的java代码:

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.ZipFile;

//这里注意不能采用java下面的类包，不然没有设置编码的方法

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;

public class ZipUtil {

public static final String ZIP_FILENAME = ""; // 需要解压缩的文件名
public static final String ZIP_DIR = ""; // 需要压缩的文件夹
public static final String UN_ZIP_DIR = ""; // 要解压的文件目录
public static final int BUFFER = 1024; // 缓存大小



public static void main(String[] args) {
  try {
   zipFile("F:\page","F:\page\demo.zip");
  } catch (Exception e) {
   e.printStackTrace();
  }
}

public static void zipFile(String baseDir, String fileName)
   throws Exception {
  List fileList = getSubFiles(new File(baseDir));
  ZipOutputStream zos = new ZipOutputStream(
    new FileOutputStream(fileName));
  ZipEntry ze = null;
  byte[] buf = new byte[BUFFER];
  int readLen = 0;
  for (int i = 0; i < fileList.size(); i++) {
   File f = (File) fileList.get(i);
   ze = new ZipEntry(getAbsFileName(baseDir, f));
   ze.setSize(f.length());
   
   ze.setTime(f.lastModified());
   zos.putNextEntry(ze);
   InputStream is = new BufferedInputStream(new FileInputStream(f));
   while ((readLen = is.read(buf, 0, BUFFER)) != -1) {
    zos.write(buf, 0, readLen);
   }
   is.close();
  }
  zos.setEncoding("gbk");
  zos.close();
}

private static String getAbsFileName(String baseDir, File realFileName) {
  File real = realFileName;
  File base = new File(baseDir);
  String ret = real.getName();
  while (true) {
   real = real.getParentFile();
   if (real == null)
    break;
   if (real.equals(base))
    break;
   else
    ret = real.getName() + "/" + ret;
  }
  return ret;
}

private static List getSubFiles(File baseDir) {
  List ret = new ArrayList();
  File[] tmp = baseDir.listFiles();
  for (int i = 0; i < tmp.length; i++) {
   if (tmp.isFile())
    ret.add(tmp);
   if (tmp.isDirectory())
    ret.addAll(getSubFiles(tmp));
  }
  return ret;
}

public static void upZipFile() throws Exception {
  ZipFile zfile = new ZipFile(ZIP_FILENAME);
  Enumeration zList = zfile.entries();
  ZipEntry ze = null;
  byte[] buf = new byte[1024];
  while (zList.hasMoreElements()) {
   ze = (ZipEntry) zList.nextElement();
   if (ze.isDirectory()) {
    File f = new File(ZIP_DIR + ze.getName());
    f.mkdir();
    continue;
   }
   OutputStream os = new BufferedOutputStream(new FileOutputStream(
     getRealFileName(ZIP_DIR, ze.getName())));
   InputStream is = new BufferedInputStream(zfile.getInputStream(ze));
   int readLen = 0;
   while ((readLen = is.read(buf, 0, 1024)) != -1) {
    os.write(buf, 0, readLen);
   }
   is.close();
   os.close();
  }
  zfile.close();
}

public static File getRealFileName(String baseDir, String absFileName) {
  String[] dirs = absFileName.split("/");
  File ret = new File(baseDir);
  if (dirs.length > 1) {
   for (int i = 0; i < dirs.length - 1; i++) {
    ret = new File(ret, dirs);
   }
   if (!ret.exists())
    ret.mkdirs();
   ret = new File(ret, dirs[dirs.length - 1]);
   return ret;
  }
  return ret;
}

public static void deleteDirFile(String path) {
  File file = new File(path);
  if (file.isDirectory()) { // 如果是目录，先递归删除
   String[] list = file.list();
   for (int i = 0; i < list.length; i++) {
    deleteDirFile(path + "\" + list); // 先删除目录下的文件
   }
  }
  file.delete();
}

public static String newFolder(String dir) {
  java.io.File myFilePath = new java.io.File(dir);
  if (myFilePath.isDirectory()) {
  } else {
   myFilePath.mkdirs();
  }
  return dir;
}

public static String getFileNames(String path) {

  File file = new File(path); // get file list where the path has
  File[] array = file.listFiles(); // 获得文件列表
  String pdfNames = "";

  for (int i = 0; i < array.length; i++) {
   if (array.isFile()) {
    if (array.getName().endsWith(".pdf")) { // 获得pdf文件名称
     pdfNames += array.getName().substring(0,
       array.getName().length() - 4)
       + ",";
    }
   }
  }
  if (pdfNames.length() > 0) {
   pdfNames.substring(0, pdfNames.length() - 1);
  }
  return pdfNames;
}

public static void copyFile(String oldPath, String newPath) {
  try {
   int bytesum = 0;
   int byteread = 0;
   File oldfile = new File(oldPath);
   if (oldfile.exists()) { // 文件存在时
    InputStream inStream = new FileInputStream(oldPath); // 读入原文件
    FileOutputStream fs = new FileOutputStream(newPath);
    byte[] buffer = new byte[1444];
    while ((byteread = inStream.read(buffer)) != -1) {
     bytesum += byteread; // 字节数文件大小
     fs.write(buffer, 0, byteread);
    }
    inStream.close();
   }
  } catch (Exception e) {
   System.out.println("copy file error!");
   e.printStackTrace();
  }
}

public static boolean fileExist(String fileNames, String pdfName) {
  boolean flag = false;
  if (!"".equals(fileNames)) {
   String[] nameArr = fileNames.split(",");
   for (int i = 0; i < nameArr.length; i++) {
    if (pdfName.equals(nameArr)) { // 如果文件名相同则执行拷贝操作(拷贝到zip目录准备打包)
     flag = true;
     break;
    }
   }
  }
  return flag;
}

public static void deleteFileAndDir(String path) {
  File file = new File(path);
  File[] array = file.listFiles();
  for (int i = 0; i < array.length; i++) {
   if (array.isFile()) {
    array.delete();
   } else if (array.isDirectory()) {
    deleteDirFile(array.getPath());
   }
  }
}

}