Java package file directory ask zip file

The Java Packaging file directory asks the zip file.

/** * Resource Pack Download class * Created by Ruan Banshu on 2015/4/13.    */public class Zipoputil {private static Logger Logger = Loggerfactory.getlogger (Zipoputil.class); /** * Package multiple files into a zip * * @param sourcefolder * @param zipfile * @return */public static Boolea        N ZipFile (String sourcefolder, File zipfile) {Boolean isOk = true;        File F = new file (Sourcefolder);        Zipoutputstream out = null;            try{if (!f.exists ()) {f.mkdirs ();            } out = new Zipoutputstream (new FileOutputStream (ZipFile));            Zip (out, F, "");            Out.flush ();        Fileutils.deletedirectory (f);            } catch (Exception e) {e.printstacktrace (); throw new Appexception ("Error compressing file!        "); } finally {if (null! = out) {try{out.close ()} catch (Exception e) {e.printstacktrace ()            ;}    }} return isOk;     }/** * Recursive compressed file * @param out* @param f * @param base * @throws Exception */private static void Zip (Zipoutputstream out, File F, String            Base) throws Exception {if (F.isdirectory ()) {file[] fl = F.listfiles ();            Out.putnextentry (new 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 zipentry (base);            FileInputStream in = new FileInputStream (f);            int b;            Logger.info (base);            while ((b = In.read ())! =-1) {out.write (b);        } in.close (); }}/** * Download a single file * * @param file * @param request * @param response * @return */Publ IC Static Boolean downfile (file file, HttpServletRequest request, HttpServletResponse response) {Boolean isOk = tr        Ue OutputStreamMyout = null;        FileInputStream FIS = null;        Bufferedinputstream buff = null;        HttpSession session = Request.getsession ();        if (session! = NULL) {Session.setattribute ("state", "");            } try {response.setcontenttype ("application/x-msdownload");            Response.setcontentlength ((int) file.length ()); Response.setheader ("Content-disposition", "attachment;filename=" + New String (File.getname (). GetBytes ("Utf-8"), "            Iso8859-1 "));            FIS = new FileInputStream (file);            Buff = new Bufferedinputstream (FIS);            Byte[] B = new byte[1024 * 10];//equivalent to our cache long k = 0;//This value is used to calculate how many bytes are currently actually downloaded//from the response object to get the output stream, ready to download            Myout = Response.getoutputstream ();                while (K < File.length ()) {int J = buff.read (b, 0, b.length);                K + = J;            Writes the data in B to the client's memory Myout.write (b, 0, J);        } myout.flush (); } catch (Exception e) {e.printstacktrace ();        IsOk = false;                    } finally {try {if (null! = Myout) {myout.close ();                Myout = null;                    } if (null! = Buff) {buff.close ();                Buff = null;                    } if (null! = FIS) {fis.close ();                FIS = null;                } if (File.exists ()) {zipoputil.delfile (file);            }} catch (Exception e) {e.printstacktrace ();    }} return isOk; }/** * Delete a single file * * @param file * @return */public static Boolean delfile (file file) {Bo        Olean isOk = true;            try {if (File.isfile () && file.exists ()) {file.delete ();      }} catch (Exception e) {e.printstacktrace ();      IsOk = false;        } finally {//log ...}    return isOk; }

Java package file directory ask zip file