利用JAVA打包生成zip文件的类
主要代码参考了beansoft的ZipUtil,添加了一个方法，
可以把不同目录文件添加到zip中,并做了一些改进，使用了apache的zip类，(原为jdk的zip类)，使支持中文文件名。
apache的zip类可以从ant中抽取。apache好像没有提供单独下载。
package com.order;
import java.io.*;
import java.util.List;
import org.apache.tools.zip.*;
/**
* 把多个文件打包到一个文件
* @author xiaofei.hu
*
*/
public class ZipUtil {
public static void toZip(File[] files, File zipFile){
}
/**
* The buffer.
*/
protected static byte buf[] = new byte[1024];
/**
* 遍历目录并添加文件.
* @param jos - JAR 输出流
* @param file - 目录文件名
* @param pathName - ZIP中的目录名
* @throws IOException
* @throws FileNotFoundException
*/
private static void recurseFiles(ZipOutputStream jos, File file, String pathName)
throws IOException, FileNotFoundException
{
if (file.isDirectory())
{
pathName = pathName + file.getName() + "/";
jos.putNextEntry(new ZipEntry(pathName));
String fileNames[] = file.list();
if (fileNames != null)
{
for (int i = 0; i < fileNames.length; i++)
recurseFiles(jos, new File(file, fileNames[i]), pathName);
}
} else
{
ZipEntry jarEntry = new ZipEntry(pathName + file.getName());
// System.out.println(pathName + " " + file.getName());
FileInputStream fin = new FileInputStream(file);
BufferedInputStream in = new BufferedInputStream(fin);
jos.putNextEntry(jarEntry);
int len;
while ((len = in.read(buf)) >= 0)
jos.write(buf, 0, len);
in.close();
jos.closeEntry();
}
}
public static void toZip(List<File> files, File zipFile, String zipFolderName, int level)
throws IOException, FileNotFoundException
{
level = checkZipLevel(level);
if(zipFolderName == null) {
zipFolderName = "";
}
ZipOutputStream jos = new ZipOutputStream(new FileOutputStream(zipFile));
jos.setLevel(level);
for (int i = 0; i < files.size(); i++){
recurseFiles(jos, files.get(i), files.get(i).getPath());
}
jos.close();
}
/**
* 创建 ZIP/JAR 文件.
* @param directory - 要添加的目录
* @param zipFile - 保存的 ZIP 文件名
* @param zipFolderName - ZIP 中的路径名
* @param level - 压缩级别(0~9)
* @throws IOException
* @throws FileNotFoundException
*/
public static void makeDirectoryToZip(File directory, File zipFile, String zipFolderName, int level)
throws IOException, FileNotFoundException
{
level = checkZipLevel(level);
if(zipFolderName == null) {
zipFolderName = "";
}
ZipOutputStream jos = new ZipOutputStream(new FileOutputStream(zipFile));
jos.setLevel(level);
String fileNames[] = directory.list();
if (fileNames != null)
{
for (int i = 0; i < fileNames.length; i++)
recurseFiles(jos, new File(directory, fileNames[i]), zipFolderName);
}
jos.close();
}
/**
* 检查并设置有效的压缩级别.
* @param level - 压缩级别
* @return 有效的压缩级别或者默认压缩级别
*/
public static int checkZipLevel(int level)
{
if(level < 0 || level > 9) level = 7;
return level;
}
}
文章来源:http://huxiaofei590.blog.163.com/blog/static/3259612200711457331