Java Socket-based file UpLoad code

Write a simple code for file transfer. You can transfer files in local folders to the Server.

Server code:

Import java. io. File; Import java. io. FileOutputStream; Import java. io. IOException; Import java. io. InputStreamReader; Import java.net. ServerSocket; Import java.net. Socket; Public class FileUpLoadProjServer extends Thread { Public FileUpLoadProjServer (Socket s, String c) throws IOException { } Public void run (){ } Public static void main (String [] args ){ Try { ServerSocket server = new ServerSocket (8110 ); Socket connection = null; While (true ){ Try { Connection = server. Accept (); Inputstreamreader in = new inputstreamreader (connection . Getinputstream ()); Long time = system. currenttimemillis (); String T = "C: // temp _" + time; File myfile = NULL; If (new file (T). mkdir ())){ Myfile = new file (t + "// temp.txt "); } Else { System. Out. println ("create folder failed! "); } FileOutputStream fos = new FileOutputStream (myFile ); Int ch = 0; While (ch = in. read ())! =-1 ){ System. out. print (char) ch ); Fos. write (ch ); } Fos. close (); Connection. close (); } Catch (IOException ioe ){ System. err. println (ioe ); } Finally { Try { If (connection! = Null) Connection. close (); } Catch (IOException e ){ } } } } Catch (IOException ee ){ System. err. println (ee ); } } }

 

Client code:

Import java. io. BufferedWriter; Import java. io. File; Import java. io. FileInputStream; Import java. io. IOException; Import java. io. OutputStreamWriter; Import java. io. PrintWriter; Import java.net. InetAddress; Import java.net. Socket; Public class FileUpLoadProjClient extends Thread { Private Socket socket; Private PrintWriter out; Final int port = 8110; String path = "C: // src // test "; Public FileUpLoadProjClient (InetAddress addr ){ Try { Socket = new Socket (addr, port ); } Catch (IOException e ){ } Try { Out = new PrintWriter (new BufferedWriter (new OutputStreamWriter ( Socket. getOutputStream (), true ); Start (); } Catch (IOException e ){ Try { Socket. close (); } Catch (IOException e2 ){ } } } Public void run (){ Try { File root = new File (path ); String [] colum = root. list (); System. out. println ("The file's num is:" + colum. length ); For (int I = 0; I System. out. println ("The colum's content is:" + colum [I]); String filePath = path + "//" + colum [I]; System. out. println ("The file's absolutePath is:" + filePath ); FileInputStream FCM = new FileInputStream (filePath ); Int ch = 0; While (ch = FCM. read ())! =-1 ){ System. out. print (char) ch ); Out. write (ch ); } FCM. close (); } Out. Close (); } Catch (ioexception e ){ E. printstacktrace (); } Finally { Try { Socket. Close (); } Catch (ioexception e ){ E. printstacktrace (); } } } Public static void main (string [] ARGs) throws ioexception, Interruptedexception { Inetaddress ADDR = inetaddress. getbyname ("127.0.0.1 "); New fileuploadprojclient (ADDR ); } }

You can use it together.

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