java压缩文件三

前面介绍的使用第三方的jar进行压缩，下面介绍使用jdk自带的方法进行压缩：

Test：

package com.home;

import java.io.IOException;

public class Test {

	public Test() {
		try {
			ZipUtil.doZip("D://test", "D://test1.zip");// 压缩整个文件来
			ZipUtil.doZip("D://test.doc", "D://test2.zip");// 压缩单个文件
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public static void main(String[] args) {
		new Test();
	}

}

ZipUtil：

package com.home;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipUtil {
	/**
	 * 压缩的接口
	 * 
	 * @param src
	 *            源文件全路径
	 * @param des
	 *            目标zip文件全路径
	 * @throws IOException
	 */
	public static void doZip(String src, String des) throws IOException {
		File srcFile = new File(src);// 源文件
		File zipFile = new File(des);// 目标zip文件
		ZipOutputStream zos = null;
		try {
			zos = new ZipOutputStream(new BufferedOutputStream(
					new FileOutputStream(zipFile)));
			String basePath = null;
			if (srcFile.isDirectory()) {
				basePath = srcFile.getPath();
			} else {
				basePath = srcFile.getParent();
			}
			zipFile(srcFile, basePath, zos);

		} finally {
			if (zos != null) {
				zos.closeEntry();
				zos.close();
			}
		}

	}

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

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

	}

}