分享一下我老师大神的人工智能教程！零基础，通俗易懂！http://blog.csdn.net/jiangjunshow
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打包单个文件：
public static void main(String[] args) throws IOException{ File file = new File("d:" + File.separator + "aaa.java"); File zipFile = new File("d:" + File.separator + "hello.zip"); InputStream input = new FileInputStream(file); ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream( zipFile)); zipOut.putNextEntry(new ZipEntry(file.getName())); // 设置注释 zipOut.setComment("hello"); int temp = 0; while((temp = input.read()) != -1){ zipOut.write(temp); } input.close(); zipOut.close(); }打包多个文件：
public static void main(String[] args) throws IOException{ // 要被压缩的文件夹 File file = new File("d:" + File.separator + "temp"); File zipFile = new File("d:" + File.separator + "zipFile.zip"); InputStream input = null; ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream( zipFile)); zipOut.setComment("hello"); if(file.isDirectory()){ File[] files = file.listFiles(); for(int i = 0; i < files.length; ++i){ input = new FileInputStream(files[i]); zipOut.putNextEntry(new ZipEntry(file.getName() + File.separator + files[i].getName())); int temp = 0; while((temp = input.read()) != -1){ zipOut.write(temp); } input.close(); } } zipOut.close(); }大家自然想到，既然能压缩，自然能解压缩，在谈解压缩之前，我们会用到一个ZipFile类，先给一个这个例子吧。java中的每一个压缩文件都是可以使用ZipFile来进行表示的
import java.io.File;import java.io.IOException;import java.util.zip.ZipFile; /** * ZipFile演示 * */public class ZipFileDemo{ public static void main(String[] args) throws IOException{ File file = new File("d:" + File.separator + "hello.zip"); ZipFile zipFile = new ZipFile(file); System.out.println("压缩文件的名称为：" + zipFile.getName()); }}解压单个文件：
public static void main(String[] args) throws IOException{ File file = new File("d:" + File.separator + "hello.zip"); File outFile = new File("d:" + File.separator + "unZipFile.txt"); ZipFile zipFile = new ZipFile(file); ZipEntry entry = zipFile.getEntry("hello.txt");//hello.txt 为压缩包中文件的名称 InputStream input = zipFile.getInputStream(entry); OutputStream output = new FileOutputStream(outFile); int temp = 0; while((temp = input.read()) != -1){ output.write(temp); } input.close(); output.close(); }解压多个文件：
当我们需要解压缩多个文件的时候，ZipEntry就无法使用了，如果想操作更加复杂的压缩文件，我们就必须使用ZipInputStream类
public static void main(String[] args) throws IOException{ File file = new File("d:" + File.separator + "zipFile.zip"); File outFile = null; ZipFile zipFile = new ZipFile(file); ZipInputStream zipInput = new ZipInputStream(new FileInputStream(file)); ZipEntry entry = null; InputStream input = null; OutputStream output = null; while((entry = zipInput.getNextEntry()) != null){ System.out.println("解压缩" + entry.getName() + "文件");//entry.getName()获得压缩包内的文件及文件路径（aaaa/bb.txt） outFile = new File("d:" + File.separator + entry.getName()); if(!outFile.getParentFile().exists()){ outFile.getParentFile().mkdir(); } if(!outFile.exists()){ outFile.createNewFile(); } input = zipFile.getInputStream(entry); output = new FileOutputStream(outFile); int temp = 0; while((temp = input.read()) != -1){ output.write(temp); } input.close(); output.close(); } }给我老师的人工智能教程打call！http://blog.csdn.net/jiangjunshow
