package test;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.Adler32;
import java.util.zip.CheckedInputStream;
import java.util.zip.CheckedOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;

public class ZipCompress {
	private static final String FILE_PREFIX_PATH = "E:\\\\gittest\\";
	private static final String FILE_TARGET_PATH = "E:\\\\gittest\\Test.zip";
	private static List<String> fileList = new ArrayList<String>() {
		{
			add("Test1.txt");
			add("Test2.txt");
			add("Test3.txt");
		}
	};

	public static void main(String[] args) {
		try {
			FileOutputStream f = new FileOutputStream(FILE_TARGET_PATH);
			CheckedOutputStream csum = new CheckedOutputStream(f, new Adler32());
			ZipOutputStream zos = new ZipOutputStream(csum);
			BufferedOutputStream out = new BufferedOutputStream(zos);
			zos.setComment("A test of java Zipping");

			// No corresponding getComment(), though.
			for (String item : fileList) {
				System.out.println("Writing file: " + item);
				BufferedReader in = new BufferedReader(new FileReader(FILE_PREFIX_PATH + item));
				zos.putNextEntry(new ZipEntry(item));
				int c;
				while ((c = in.read()) != -1) {
					out.write(c);
				}
				in.close();
				out.flush();
			}
			out.close();

			// Checksum valid only after the file has been closed!
			System.out.println("Checksum: " + csum.getChecksum().getValue());

			// Now extract the files - Example1:
			System.out.println("========================Reading File - Example 1================================");
			CheckedInputStream csum2 = new CheckedInputStream(new FileInputStream(FILE_TARGET_PATH), new Adler32());
			ZipInputStream in2 = new ZipInputStream(csum2);
			BufferedInputStream bi2 = new BufferedInputStream(in2);
			ZipEntry ze;
			while ((ze = in2.getNextEntry()) != null) {
				System.out.println("Reading file: " + ze);
				int x;
				while ((x = bi2.read()) != -1) {
					System.out.write(x);
				}
				// Line feed
				System.out.println();
			}
			if (fileList.size() == 1) {
				System.out.println("Checksum: " + csum.getChecksum().getValue());
			}
			bi2.close();
			// Now extract the files - Example2:
			System.out.println("========================Reading File - Example 2================================");
			ZipFile zf = new ZipFile(FILE_TARGET_PATH);
			Enumeration e = zf.entries();
			while (e.hasMoreElements()) {
				ZipEntry ze2 = (ZipEntry) e.nextElement();
				System.out.println("File: " + ze2);
				BufferedInputStream bi3 = new BufferedInputStream(zf.getInputStream(ze2));
				int x;
				while ((x = bi3.read()) != -1) {
					System.out.write(x);
				}
				// Line feed
				System.out.println();
				bi3.close();
			}
			if (fileList.size() == 1) {
				System.out.println("Checksum: " + csum.getChecksum().getValue());
			}
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
	}

}

執行：