Java 打 zip 的工具類

直接上代碼，忘了是在哪裏拿過來，自己做了下修改，蠻好用的。

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipCompressor{
	static final int BUFFER = 8192;

	private File zipFile;

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

	public void compress(List<File> newExcelFileLis) {
		ZipOutputStream out = null;
		try {
			FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
			CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
					new CRC32());
			out = new ZipOutputStream(cos);
			String basedir = "";
			for (File file : newExcelFileLis) {
				compress(file, out, basedir);
			}
			out.close();
		} catch (Exception e) {
			throw new RuntimeException(e);
		}finally{
			try {
				out.close();
			} catch (IOException e) {
				throw new RuntimeException(e);
			}
		}
	}

	public void compress(String srcPathName) {
		File file = new File(srcPathName);
		if (!file.exists())
			throw new RuntimeException(srcPathName + "can't find!");
		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) {
		if (file.isDirectory()) {
			m_Logger.info("compress" + basedir + file.getName());
			this.compressDirectory(file, out, basedir);
		} else {
			m_Logger.info("compress" + basedir + file.getName());
			this.compressFile(file, out, basedir);
		}
	}

	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++) {
			compress(files[i], out, basedir + dir.getName() + "/");
		}
	}

	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);
		}
	}

	public static void main(String[] args) {
//		ZipCompressor zc = new ZipCompressor("C:/Users/wj/Desktop/aaa.zip");
//		zc.compress("C:/Users/wj/Desktop/water.js",
//				"C:/Users/wj/Desktop/index.jsp");
	}
}

預留了 main方法 直接調 就好。