天地无用--如何用Java压缩文件(转)

/** [Demo Program]** try {* zipDir("c:/temp", "c:/temp.zip", true);* } catch(Exception e) {* //handle exception* }*/public static void zipDir(String directory, String zipname, booleanoverride) {try {File file = new File(zipname);if (file.isDirectory())return;if ((!override) && file.exists())return;file.delete();ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(file));zipDir(directory, zos);DgIOUtils.close(zos);} catch (FileNotFoundException e) {}}protected static boolean zipDir(String directory, ZipOutputStream zos) {try {//create a new File object based on the directory we have to zip FileFile zipDir = new File(directory);//get a listing of the directory contentString[] dirList = zipDir.list();byte[] readBuffer = new byte[2156];int bytesIn = 0;//loop through dirList, and zip the filesfor (int i = 0; i < dirList.length; i++) {File f = new File(zipDir, dirList[i]);if (f.isDirectory()) {//if the File object is a directory, call this//function again to add its content recursivelyString filePath = f.getPath();zipDir(filePath, zos);//loop againcontinue;}//if we reached here, the File object f was not a directory//create a FileInputStream on top of fFileInputStream fis = new FileInputStream(f);//create a new zip entryZipEntry anEntry = new ZipEntry(f.getPath());//place the zip entry in the ZipOutputStream objectzos.putNextEntry(anEntry);//now write the content of the file to the ZipOutputStreamwhile ((bytesIn = fis.read(readBuffer)) != -1) {zos.write(readBuffer, 0, bytesIn);}//close the StreamDgIOUtils.close(fis);return true;}} catch (Exception e) {//handle exception}return false;}

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