Java Communication (1)--File upload and download using socket

Client

/** * File Upload client * * * @author Chen.lin * */public class Uploadclient extends JFrame {/** * * */PRI
    Vate static final Long serialversionuid = -8243692833693773812l;
    Private String ip;//server IP private int port;//port private Properties prop; Private list<filebean> Filebeans = new arraylist<filebean> ();//The collection of files read from file.xml private socket socket;
    Client socket private Bytearrayinputstream Bais;
    Private Sequenceinputstream sis;
    Private Bufferedoutputstream Bos;

    Private InputStream FS;

        Public uploadclient () {//Initialization data initdatas ();

        Start uploading Files startuploadfile ();
    Set window Properties Initviews ();
        private void Initviews () {settitle ("Upload client");
        Getcontentpane (). setlayout (NULL);
        SetBounds (160, 200, 440, 300);
        Setdefaultcloseoperation (Dispose_on_close);
    SetVisible (TRUE); /** * Start uploading files .... */public void STARTUPLOADFIle () {try {socket = new socket (IP, port);
                if (!socket.isclosed () && socket.isconnected ()) {Logger.log ("Client connection succeeded ...");
            SYSTEM.OUT.PRINTLN ("Client connection succeeded ...");
                else {Logger.log ("Connection failed, please contact the developer ...");
                Joptionpane.showmessagedialog (NULL, "Connection failed, please contact developer");
            Return
                for (Filebean Filebean:filebeans) {String FilePath = Filebean.getpath ();
                Logger.log ("filepath===" + filepath);
                File file = null; if (FilePath!= null &&! "".
                    Equals (Filepath.trim ())) {int indexOf = Filepath.lastindexof ("/");

                    String fileName = filepath.substring (indexOf + 1);
                        if (Filepath.startswith ("http://")) {URL url = new URL (filePath);
                       File = new file (FilePath); HttpURLConnection conn = (httpurlconnection) url.openconnection ();
                        Conn.setreadtimeout (5000);
                        Conn.setrequestmethod ("get");
                        Conn.setconnecttimeout (5000);
                        if (conn.getresponsecode () = =-fs = Conn.getinputstream ();
                        }else {Logger.log (Error message: File network path error: + FilePath);
                        }}else {file = new file (Filebean.getpath ());
                    FS = new FileInputStream (file);
                    } Logger.log ("filename=" + filename);
                    Long fileSize = File.length ();
                    Logger.log ("filesize===" + filesize);
                        if (filesize/1024/1024 >) {Logger.log ("file exceeds 70M, cannot upload");
                    Return }//define a 256-byteArea to save file information.
                    Byte[] B = filename.getbytes ();
                    Byte[] info = arrays.copyof (b, 256);
                    Bais = new Bytearrayinputstream (info);

                    SIS = new Sequenceinputstream (Bais, FS);
                        if (socket.isclosed ()) {Logger.log ("Reconnect successful!");
                        System.out.println ("Reconnect successful!");
                    Socket = new Socket (IP, port);
                    BOS = new Bufferedoutputstream (Socket.getoutputstream ());

                    BufferedReader br = new BufferedReader (New InputStreamReader (Socket.getinputstream ()));
                    byte[] buf = new byte[1024];
                    int len = 0;
                        while (len = Sis.read (buf))!=-1) {bos.write (buf, 0, Len);
                    Bos.flush ();

                    }//Close Socket.shutdownoutput (); String RESult = Br.readline ();
                    Logger.log (Filebean.getname () + "upload:" + result);
                        if ("Success". Equals (Result.trim ())) {filebean.setstate (1);
                    Xmlutil.changefilestate (Prop.getproperty ("Xmlpath"), Filebean);
                } br.close ();
        A catch (Exception e) {e.printstacktrace ());
                Finally {try {if (Bos!= null) {bos.close ();
                } if (sis!= null) {sis.close ();
                } if (fs!= null) {fs.close ();
                } if (Bais!= null) {bais.close ();
                } if (socket!= null) {socket.close ();
            } catch (IOException e) {e.printstacktrace ();
}        }/** * Initialization data * * @throws unknownhostexception * @throws Exception/pri
            vate void Initdatas () {try {prop = Proputil.getprop ();
            ip = prop.getproperty ("IP");
            if (Ip.startswith ("http://")) {IP = inetaddress.getbyname (IP). gethostaddress ();
            Port = Integer.parseint (Prop.getproperty ("port"));
            Final String Xmlpath = Prop.getproperty ("Xmlpath");
            Logger.log ("xmlpath===" + Xmlpath);
            System.out.println ("xmlpath===" + Xmlpath);
            Because read the remote XML, more time-consuming, so put the thread running executorservice executorservice = Executors.newcachedthreadpool (); arraylist<future<list<filebean>>> List = new arraylist<future<list<filebean>>>
            ();
            List.add (Executorservice.submit (New Callthread (Xmlpath))); for (future<list<filebean>> fs:list) {List<FileBean> Filebean = Fs.get ();
            Filebeans.addall (Filebean);
            } catch (Exception e) {e.printstacktrace ();
            Logger.log ("Error:" + e.getmessage ());
        Joptionpane.showmessagedialog (NULL, "error:" + e.getmessage ()); } public static void Main (string[] args) {Eventqueue.invokelater (new Runnable () {public V
                    OID run () {try {new uploadclient ();

                System.exit (0);
                catch (Exception e) {e.printstacktrace ();
    }
            }
        }); }

}

Server-side code

/** * File Upload server * * @author chen.lin * * */public class Uploadserver extends JFrame {/** * * */PRI
    Vate static final Long serialversionuid = -5622620756755192667l;
    Private JTextField Port;
    Private ServerSocket server;
    Private volatile Boolean isrun = false;

    Private Executorservice pool = Executors.newfixedthreadpool (10);
        Public Uploadserver () {settitle ("Upload Server");

        Getcontentpane (). setlayout (NULL);
        JLabel label = new JLabel ("Listening window:");
        Label.setbounds (86, 80, 74, 15);

        Getcontentpane (). Add (label);
        Port = new JTextField ("9000");
        Port.setbounds (178, 77, 112, 21);
        Getcontentpane (). Add (port);
        Port.setcolumns (10);
        /** * Start service/FINAL JButton btnstart = new JButton ("Boot server");
                Btnstart.addactionlistener (new ActionListener () {public void actionperformed (ActionEvent e) { Port.setenabled (FALSE);
         Control is not variable in black and white       Btnstart.setenabled (FALSE);
                Isrun = true;
                        New Thread (New Runnable () {@Override public void run () {
                            try {server = new ServerSocket (Integer.parseint (Port.gettext ()));
                            SYSTEM.OUT.PRINTLN ("The server started ...");
                            while (Isrun) {Pool.execute (New Uploadthread (Server.accept ()));
                        };
                        catch (NumberFormatException E1) {e1.printstacktrace ();
                            catch (IOException E1) {e1.printstacktrace ();
                        Pool.shutdown ();
            }}). Start ();
        }
        });
        Btnstart.setbounds (73, 145, 93, 23);

        Getcontentpane (). Add (Btnstart); JButton btnstop = new JbuTton ("Stop Server");
                Btnstop.addactionlistener (new ActionListener () {public void actionperformed (ActionEvent e) {
                Port.setenabled (TRUE);
                Btnstart.setenabled (TRUE);
                Isrun = false;
            Server = NULL;
        }
        });
        Btnstop.setbounds (209, 145, 93, 23);
        Getcontentpane (). Add (Btnstop);
        SetBounds (600, 200, 380, 300);
        Setdefaultcloseoperation (Dispose_on_close);
    SetVisible (TRUE); public static void Main (string[] args) {Eventqueue.invokelater (new Runnable () {public void Ru
                N () {try {new uploadserver ();
                catch (Exception e) {e.printstacktrace ();
    }
            }
        }); /** * File transfer memory consumption, so must be placed in a thread run/class Uploadthread implements Runnable {private socket socket
        ;
        Private SimpleDateFormat SDF; Private Bufferedinputstream bis;

        Private Bufferedoutputstream Bos;
            Uploadthread (socket socket) {this.socket = socket;
        SDF = new SimpleDateFormat ("YYYYMMDDHH"); @Override public void Run () {try {bis = new Bufferedinputstream (socket.ge
                Tinputstream ());
                Byte[] info = new BYTE[256];
                Bis.read (info);
                String fileName = new String (info). Trim ();
                String FilePath = Proputil.getprop (). GetProperty ("FilePath");
                String FullPath = FilePath + "/" + Sdf.format (new Date ());
                File dirs = new file (FullPath);
                if (!dirs.exists ()) {dirs.mkdirs ();
                } printwriter pw = new PrintWriter (Socket.getoutputstream (), true); if (! Textutil.isempty (FileName)) {bos = new Bufferedoutputstream (new FileOutputStream (FullPath + "/" + fi Lename));
                    byte[] buf = new byte[1024];
                    int len = 0;
                        while (len = Bis.read (buf))!=-1) {bos.write (buf, 0, Len);
                    Bos.flush ();

                    SYSTEM.OUT.PRINTLN (filename + "file transfer succeeded");
                PW.PRINTLN ("Success");
                }else {pw.println ("failure");

            } pw.close ();
            catch (IOException e) {e.printstacktrace ();
                    } finally{try {if (Bos!= null) {bos.close ();
                    } if (bis!= null) {bis.close ();
                    } if (socket!= null) {socket.close ();
                } catch (IOException e) {e.printstacktrace ();
     }       }
        }
    }
} 

Related tool Classes

/**
 * Record log information
 * @author chen.lin
 *
 *
/public class Logger {public

    static void log (String name) { c7/>try {
            SimpleDateFormat sdf = new SimpleDateFormat ("YYYYMMDDHH");
            String Path = "d:/upload_log/" + Sdf.format (new Date ());
            File File = new file (path);
            if (!file.exists ()) {
                file.mkdirs ();
            }
            FileOutputStream out = new FileOutputStream (new File (path + "/log.txt"), true);
            BufferedWriter bw = new BufferedWriter (new OutputStreamWriter (out));
            Bw.write (name + "\ r \ n");
            Bw.flush ();
            Bw.close ();
        } catch (FileNotFoundException e) {
            e.printstacktrace ();
        } catch (IOException e) {
            e.printstacktrace (); c23/>}}}

/** * Read Profile tool * @author Chen.lin */public class Proputil {private static Properties
    Prop
        static{prop = new Properties ();
        InputStream instream = PropUtil.class.getClassLoader (). getResourceAsStream ("d:/files/config.properties");
            try {inputstream instream = new FileInputStream (New File ("D:/files/config.properties"));
        Prop.load (instream);
        catch (IOException e) {e.printstacktrace ();
    The public static Properties Getprop () {return prop;
        public static void Main (string[] args) {String Xmlpath = (String) proputil.getprop (). Get ("FilePath");
    System.out.println (Xmlpath); }
}

/** * Text Tool * @author Chen.lin * */public class Textutil {public static Boolean IsEmpty (String text) {if (text = = NULL | |
        '. Equals (Text.trim ()) {return true;
    return false; }
}

/** * XML file parsing and generating * * @author Chen.lin */public class Xmlutil {/** * Get file information from XML file * * @par AM Xmlpath * @return * @throws Exception/public static list<filebean> Getfilebeanfromxml (Strin
        G Xmlpath) throws Exception {list<filebean> List = null;
        if (Textutil.isempty (Xmlpath)) {return null;
        } Xmlpullparserfactory factory = Xmlpullparserfactory.newinstance ();
        Xmlpullparser parser = Factory.newpullparser ();
        InputStream inputstream = null;
            if (Xmlpath.startswith ("http://")) {URL url = new URL (xmlpath);
        InputStream = Url.openstream ();
        else {InputStream = new FileInputStream (new File (Xmlpath));
        } parser.setinput (InputStream, "UTF-8");
        int eventtype = Parser.geteventtype ();
        Filebean bean = null;
while (EventType!= xmlpullparser.end_document) {switch (EventType) {            Case XmlPullParser.START_DOCUMENT:list = new arraylist<filebean> ();
            Break Case XmlPullParser.START_TAG:if ("File". Equals (Parser.getname ()) {bean = new Filebe
                    An ();
                Bean.setid (parser.getattributevalue (0));
                else if ("name". Equals (Parser.getname ()) {Bean.setname (Parser.nexttext ());
                else if ("path". Equals (Parser.getname ()) {Bean.setpath (Parser.nexttext ());
                    ' Else if ' (' state '. Equals (Parser.getname ()) {int state = Integer.parseint (Parser.nexttext ());
                Bean.setstate (state);
            } break; Case Xmlpullparser.end_tag://Add object to list if ("File". Equals (Parser.getname ()) && b
           EAN!= null && bean.getstate () = = 0) {list.add (bean);         Bean = null;
            } break;
        //The current resolution position ends, pointing to the next location EventType = Parser.next ();
    } return list; /** * Modify XML content * * @param xmlpath * @param bean/public static void Changefilestate ( String Xmlpath, Filebean Bean) {try {documentbuilderfactory dbf = documentbuilderfactory.newinstance
            ();
            Documentbuilder db = Dbf.newdocumentbuilder ();
            Document doc = null;
                if (Xmlpath.startswith ("http://")) {URL url = new URL (xmlpath);
            doc = Db.parse (Url.openstream ()); else {doc = Db.parse (