Server side of Unity3d and Java server delivery files

• Just to be useful in the work, to record that the Java server is using the jfinal framework.
  • The Unity upload file only transmits the byte stream, and the server then writes the byte stream to the file

  •  Public voidUploadFile ()throwsIOException {rendernull (); //================== start processing files ===================//the file name of the temporary file in the content of the upload fileSystem.out.println (Getrequest (). Getcontentlength ()); if(Getrequest (). Getcontentlength () >0) {String tempfilename=NewString ("TempFileName.txt"); //Tempfile object pointing to a temporary fileFile tempfile =NewFile (Pathkit.getwebrootpath () + file.separator+tempfilename); System.out.println ("FilePath:" +pathkit.getwebrootpath () + file.separator+tempfilename); //outputfile file output stream points to this temporary fileFileOutputStream OutputStream =NewFileOutputStream (tempfile); //get all the data submitted by the clientInputStream Filesourcel =getrequest (). getInputStream (); //writes the resulting client data to a temporary file        byteB[] =New byte[1000]; intN;  while((N=filesourcel.read (b))!=-1) {System.out.println ("B:" +b); System.out.println ("N:" +N); Outputstream.write (b,0, N); }        //turn off the output stream and input streamOutputstream.close ();        Filesourcel.close (); //Randomfile object pointing to a temporary fileRandomaccessfile Randomfile =NewRandomaccessfile (Tempfile, "R"); //reads the first three rows of data from a temporary fileRandomfile.readline ();        Randomfile.readline ();        Randomfile.readline (); //reads the fourth row of data from the temporary file, which contains the path and file name of the filesString FilePath =Randomfile.readline (); //Get file nameSystem.out.println (FilePath); intPosition = Filepath.lastindexof ("filename"); String filename=tool.codestring (Filepath.substring (Position+10,filepath.length ()-1)); System.out.println ("FileName" +filename); //Reposition Read file pointer to file headerRandomfile.seek (0); //get the position of the fifth line carriage return, which is where the data of the uploaded file begins        Longfifthenterposition = 0; intFifth = 1;  while((N=randomfile.readbyte ())!=-1&& fifth<=5) {System.out.println ("N:" +N); System.out.println (Fifth:"fifth);if(n== ' \ n ') {fifthenterposition=Randomfile.getfilepointer (); Fifth++; } System.out.println (fifthenterposition:"Fifthenterposition);        }        //generate directory for uploaded filesFile fileupLoad =NewFile (Pathkit.getwebrootpath () + File.separator, "UpLoad");        Fileupload.mkdir (); //the SaveFile object points to the file to be savedFile SaveFile =NewFile (Pathkit.getwebrootpath () + "\\upLoad", filename); Randomaccessfile Randomaccessfile=NewRandomaccessfile (SaveFile, "RW"); //Find the end location of the uploaded file data, that is, the third line to the bottomRandomfile.seek (Randomfile.length ()); LongEndposition =Randomfile.getfilepointer (); System.out.println ("Endposition:" +endposition); intj = 1;  while((endposition>=0) && (j<=3) {System.out.println ("EndPosition1:" +endposition); System.out.println ("J:" +j); Endposition--;            Randomfile.seek (endposition); if(Randomfile.readbyte () = = ' \ n ') {J++; }        }        //writes data to the file to be saved from the beginning of the uploaded file data to the end locationSystem.out.println (fifthenterposition: "Fifthenterposition");Randomfile.seek fifthenterposition); LongStartPoint =Randomfile.getfilepointer (); System.out.println ("StartPoint:" +startPoint); //Endposition=randomfile.getfilepointer ();System.out.println ("Endposition:" +endposition);  while(startpoint<endposition) {System.out.println ("StartPoint1:" +startPoint); //System.out.println ("Randomfile.readbyte ():" +randomfile.readbyte ());Randomaccessfile.write (Randomfile.readbyte ()); StartPoint=Randomfile.getfilepointer (); }        //close file input, outputRandomaccessfile.close ();        Randomfile.close ();        Tempfile.delete (); //================== Processing file End ===================//upload success to console output fileSystem.out.println ("File upload success!");        Checkcsv (); }Else{RenderText ("False"); }            } 

  •  Public classTool {/**file byte stream*/     Public Static byte[] getBytes (String filePath) {byte[] buffer =NULL; Try{File File=NewFile (FilePath); FileInputStream FIS=Newfileinputstream (file); Bytearrayoutputstream Bos=NewBytearrayoutputstream (1000); byte[] B =New byte[1000]; intN;  while((n = fis.read (b))! =-1) {Bos.write (b,0, N);            } fis.close ();            Bos.close (); Buffer=Bos.tobytearray (); } Catch(FileNotFoundException e) {e.printstacktrace (); } Catch(IOException e) {e.printstacktrace (); }        returnbuffer; }    /**functions for handling Chinese strings*/     Public Staticstring codestring (String str) {string S=str; Try {            byte[] temp = s.getbytes ("UTF-8"); S=NewString (temp); returns; } Catch(unsupportedencodingexception e) {e.printstacktrace (); returns; }    }
    }

  • Using Web uploads is completely different from byte stream transmission.

  •  Public voidUploadfileweb ()throwsIOException {uploadfile uploadfile= This. GetFile (); String FileName=Uploadfile.getoriginalfilename (); File File=Uploadfile.getfile (); Fileservice FS=NewFileservice (); File T=NewFile ("d:\\file\\" +fileName); Try{t.createnewfile (); } Catch(IOException e) {e.printstacktrace ();        } fs.filechannelcopy (file, T);    File.delete (); }

  • Download the file with Jfinal's RenderFile

  • //Download File     Public voidDownfile ()throwsFileNotFoundException, IOException {readfiles ("D:\\file\\"); String name= Getpara ("filename");        SYSTEM.OUT.PRINTLN (name); intindex =-1;  for(inti = 0; I < filearraylist.size (); i++) {            if(Filearraylist.get (i). INDEXOF (name)! =-1) {Index=i;        }} System.out.println (index); if(Index >-1) {RenderFile (NewFile (Filearraylist.get (index)));        SYSTEM.OUT.PRINTLN (Filearraylist.get (index)); }    }    //get all the files in the directory recursively     Public Static BooleanReadfiles (String filepath)throwsFileNotFoundException, IOException {Try{File File=NewFile (filepath); if(!file.isdirectory ()) {System.out.println (File); System.out.println ("Path=" +File.getpath ()); System.out.println ("Absolutepath=" +File.getabsolutepath ()); System.out.println ("Name=" +file.getname ());                Filearraylist.add (File.getpath ()); //filearraylist.add ("<a href= '/file/downfile ' > Download </a><br>");}Else if(File.isdirectory ()) {System.out.println (Folder); String[] FileList=file.list ();  for(inti = 0; i < filelist.length; i++) {File ReadFile=NewFile (filepath + "\ \" +Filelist[i]); if(!readfile.isdirectory ()) {System.out.println ("Path=" +Readfile.getpath ()); System.out.println ("Absolutepath=" +Readfile.getabsolutepath ()); System.out.println ("Name=" +readfile.getname ());                    Filearraylist.add (Readfile.getpath ()); } Else if(Readfile.isdirectory ()) {Readfiles (filepath+ "\\" +Filelist[i]); }                }            }        } Catch(FileNotFoundException e) {System.out.println ("ReadFile () Exception:" +e.getmessage ()); }        return true; }

Server side of Unity3d and Java server delivery files