壓縮文件夾代碼： import java.io.File; import org.apache.tools.zip.ZipOutputStream; //這個包在ant.jar里，要到官方網下載 import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.zip.ZipInputStream; import java.util.zip.ZipEntry;public class CompressBook {/**//* * inputFileName 輸入一個文件夾 * zipFileName 輸出一個壓縮文件夾 */ public void zip(String inputFileName) throws Exception {String zipFileName = "C:\\temp\\"; //打包后文件名字if(com.turbocms.tools.Config.Debug.equals("true"))System.out.println(zipFileName);zip(zipFileName, new File(inputFileName)); } public void zipOfName(String inputFileName,String zipFileName) throws Exception {zip(zipFileName, new File(inputFileName)); }private void zip(String zipFileName, File inputFile) throws Exception {ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFileName));zip(out, inputFile, "");if(com.turbocms.tools.Config.Debug.equals("true"))System.out.println("zip done");out.close(); }private void zip(ZipOutputStream out, File f, String base) throws Exception {if (f.isDirectory()) {File[] fl = f.listFiles();out.putNextEntry(new org.apache.tools.zip.ZipEntry(base + "/"));base = base.length() == 0 ? "" : base + "/";for (int i = 0; i < fl.length; i++) {zip(out, fl[i], base + fl[i].getName());}}else {out.putNextEntry(new org.apache.tools.zip.ZipEntry(base));FileInputStream in = new FileInputStream(f);int b;if(com.turbocms.tools.Config.Debug.equals("true"))System.out.println(base);while ( (b = in.read()) != -1) {out.write(b);}in.close();} }public static void main(String [] temp){CompressBook book = new CompressBook();try {// book.zip("E:\\temp\\pes\\temp\\115411B78AF6F2CDD513393FB8F0A8C6");//你要壓縮的文件夾}catch (Exception ex) {ex.printStackTrace();} } }

文件壓縮

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import java.io.*; import java.util.zip.*;//ZipOutputStream這個流在這里 import java.util.*;public class ZipOutputStreamTest {public static void main(String[] args) throws Exception{File f = new File("a.jpg");FileInputStream fis = new FileInputStream(f);BufferedInputStream bis = new BufferedInputStream(fis);byte[] buf = new byte[1024];int len;FileOutputStream fos = new FileOutputStream(f.getName()+".zip");BufferedOutputStream bos = new BufferedOutputStream(fos);ZipOutputStream zos = new ZipOutputStream(bos);//壓縮包ZipEntry ze = new ZipEntry(f.getName());//這是壓縮包名里的文件名zos.putNextEntry(ze);//寫入新的 ZIP 文件條目并將流定位到條目數據的開始處while((len=bis.read(buf))!=-1){zos.write(buf,0,len);zos.flush();}bis.close();zos.close(); } }

轉載于:https://www.cnblogs.com/lan0725/archive/2011/03/10/1980097.html

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