Extracting packages by using Java-brought Zipinputstream

Package com.ffcs.icity.common.util;
Import Java.io.ByteArrayInputStream;
Import Java.io.File;
Import Java.io.FileOutputStream;
Import java.io.IOException;
Import Java.io.InputStream;
Import Java.util.HashMap;
Import Java.util.Map;
Import Java.util.zip.ZipEntry;

Import Java.util.zip.ZipInputStream;
Import Org.apache.commons.io.FilenameUtils;
Import Org.apache.commons.io.IOUtils;
Import Org.apache.commons.lang3.RandomStringUtils;
Import Org.slf4j.Logger;


Import Org.slf4j.LoggerFactory; /** * Provides a compression decompression for the file of the Operation tool class * @author Linwei * * */public class Ziputil {private final static Logger log = Loggerfactor
	
	Y.getlogger (Ziputil.class); /** * Perform decompression of compressed files and automatically generate file operations * @param in * @param outputdirectory * * * @return */public static Map<string,o
		
		Bject> UnZip (InputStream in,string outputdirectory) {if (in = = NULL) return null;
		ZipEntry zipentry = null;
		FileOutputStream out = null;
		String uniquename,iconurl = null; map<string,object> map = new HashMap<string,object> ();
		Zipinputstream Zipin = new Zipinputstream (in); 
try{while ((ZipEntry = Zipin.getnextentry ())!= null) {//If the folder path is the way, the operation if (Zipentry.isdirectory ()) is temporarily not provided in this method {
String name = Zipentry.getname ();
Name = name.substring (0, Name.length ()-1);
File File = new file (outputdirectory + file.separator + name);
				File.mkdir ();
					else {//If it is a file, generate UniqueName = Getsavedfilename (Zipentry.getname ()) directly under the corresponding path;
					File path = new file (outputdirectory + file.separator);
					
					if (!path.exists ()) path.mkdirs ();
					Iconurl = outputdirectory + File.separator + uniquename;
					File File = new file (Iconurl);
					File.createnewfile ();
					out = new FileOutputStream (file);
					int b = 0;
					while ((b = zipin.read ())!=-1) {out.write (b);
					} out.close ();
				Map.put (Zipentry.getname (), iconurl);
		} return map; The catch (Exception ex) {Log.error ("in UnZip" (InputStream in,stringOutputDirectory) has a error,e is "+ ex);
		return null;
			} finally{ioutils.closequietly (Zipin);
			Ioutils.closequietly (in);
		ioutils.closequietly (out);
	 /** * Unzip the compressed file stream, and based on the level of decompression to determine whether to resolve only the first layer, or parse all the data * map<name,inputstream> * @param in * @param parselevel * @return */public static map<string,object> UnZip (InputStream in,int parselevel) {if (in = = null) retu
		
		RN null;
		ZipEntry zipentry = null;
		FileOutputStream out = null;
		map<string,object> map = new hashmap<string,object> ();
		Zipinputstream Zipin = new Zipinputstream (in); 
try{while ((ZipEntry = Zipin.getnextentry ())!= null) {//If the folder path is the way, the operation if (Zipentry.isdirectory ()) is temporarily not provided in this method {
String name = Zipentry.getname ();
Name = name.substring (0, Name.length ()-1);
File File = new file (outputdirectory + file.separator + name);
				File.mkdir ();
					else {//If it is a file, it is stored directly in the map String name = Zipentry.getname (); Put pressureThe flow in the indented file into a byte array, enough external logic to use (after closing the stream) byte[] bt = Ioutils.tobytearray (Zipin);
				Map.put (NAME,BT);
		} return map;
			The catch (Exception ex) {Log.error ("in UnZip (InputStream in,int parselevel) has a error,e is" + ex);
		return null;
			} finally{ioutils.closequietly (Zipin);
			Ioutils.closequietly (in);
		ioutils.closequietly (out); /** * Generates a unique new file name (with suffix) based on the file name passed (with suffix) * @param origfilename * @return/private static String Getsa Vedfilename (String origfilename) {return Datehelper.getcurrenttimestamp ("YYYYMMDDHHMMSS") + "-" +
	Randomstringutils.randomnumeric (5) + "." + filenameutils.getextension (origfilename); public static void Main (string[] args) throws IOException {//FileInputStream in = new FileInputStream (New Fi
Le ("d:\\temp\\temp.zip"));
Map map = UnZip (in,0);
		
SYSTEM.OUT.PRINTLN ("map is" + map.size ()); 
		byte[] bt = (byte[]) map.get ("Ziptest.zip");
		byte[] bt = NULL; InputStream in1 = new BytearrayinputstreAM (BT);
		UnZip (in1, "d://test");
	System.err.println ("over.");
 }
	
}