JAVA Implementation of simple FTP software --> Implementation of the upload/download queue window (7)

1. First, let's take a look at the queue window interface.

2. Check the upload queue window.

3. Check the download queue window.

4. Queue window implementation

Package COM. oyp. FTP. panel. queue; import static Java. AWT. borderlayout. center; import static Java. AWT. borderlayout. east; import static javax. swing. listselectionmodel. single_selection; import Java. AWT. borderlayout; import Java. AWT. event. actionevent; import Java. AWT. event. actionlistener; import Java. io. file; import Java. io. ioexception; import Java. util. export list; import javax. swing. boxlayout; import javax. swing. Jbutton; import javax. swing. jpanel; import javax. swing. jscrollpane; import javax. swing. jtable; import javax. swing. jtogglebutton; import javax. swing. jtoolbar; import javax. swing. listselectionmodel; import javax. swing. timer; import javax. swing. table. defaulttablemodel; import COM. oyp. FTP. ftpclientframe; import COM. oyp. FTP. utils. ftpclient; import COM. oyp. FTP. utils. ftpfile;/*** task queue control panel */public class queuepanel Extends jpanel implements actionlistener {private jtable queuetable = new jtable (); // display the table component private jscrollpane scrollpane = new jscrollpane (); Private ftpclientframe; // reference object of the main form private string [] columns; private ftpclient; // control class private timer queuetimer of the FTP protocol; // queue timer private timer list <object []> localqueue; // upload queue private queue list <object []> ftpqueue on the local panel; // download queue PRI on the FTP panel Vate jtogglebutton stopbutton; private Boolean stop = false; // control variable of the queue/*** default constructor */Public queuepanel () {initcomponent ();} /*** custom constructor ** @ Param frame * main form */Public queuepanel (ftpclientframe frame) {This. frame = frame; // obtain the upload queue localqueue = (upload list <object []>) frame of the local panel from the main form. getlocalpanel (). getqueue (); // get the ftpqueue = (download list <object []>) frame of the FTP panel from the main form. getftppanel (). getqueue (); initc Omponent (); // initialize the form interface // create a timer to execute the queue refresh task queuetimer = new timer (1000, new actionlistener () every second () {/*** timer event processing method */@ overridepublic void actionreceivmed (actionevent e) {If (localqueue. size () + ftpqueue. size () = queuetable. getrowcount () // If the queue size does not change return; // end this method without refreshqueue (); // otherwise, refresh the table data that shows the queue information});} private void initcomponent () {borderlayout cardlayout = new borderlayout (); setlayout (Card Layout); columns = new string [] {"Task Name", "direction", "host", "execution status"}; queuetable. setmodel (New defaulttablemodel (new object [] [] {}, columns); queuetable. gettableheader (). setreorderingallowed (false); scrollpane. setviewportview (queuetable); cardlayout. layoutcontainer (scrollpane); add (scrollpane, center); jtoolbar controltool = new jtoolbar (jtoolbar. vertical); controltool. setrolover (true); controltool. setfloatable (False); jbutton upbutton = new jbutton ("Move Up"); upbutton. setactioncommand ("up"); upbutton. addactionlistener (this); jbutton downbutton = new jbutton ("Move Down"); downbutton. setactioncommand ("down"); downbutton. addactionlistener (this); stopbutton = new jtogglebutton ("pause"); stopbutton. setactioncommand ("Stop & start"); stopbutton. addactionlistener (this); jbutton delbutton = new jbutton ("delete"); delbutton. setactioncommand (" Del "); delbutton. addactionlistener (this); jbutton clearbutton = new jbutton ("clear"); clearbutton. setactioncommand ("clear"); clearbutton. addactionlistener (this); controltool. setlayout (New boxlayout (controltool, boxlayout. y_axis); controltool. add (upbutton); controltool. add (downbutton); controltool. add (stopbutton); controltool. add (delbutton); controltool. add (clearbutton); add (controltool, East);} public void star Tqueue () {ftpclient = frame. getftpclient (); queuetimer. start ();}/*** interface button event handling method */@ overridepublic void actionreceivmed (actionevent e) {final string command = E. getactioncommand (); If (command. equals ("Stop & start") {// process the pause button event if (stopbutton. isselected () {stop = true; stopbutton. settext ("continue");} else {stop = false; stopbutton. settext ("pause") ;}// process the move up and move down button event if (command. equals ("up") | command. equals (" Down ") {up_down_action (command); // call the method for processing the move-up and move-down actions} If (command. equals ("Del") {// event int ROW = queuetable for processing the delete button. getselectedrow (); // get the current row of the table that displays the queue if (row <0) return; // get the first table unit value of the selected row object valueat = queuetable. getvalueat (row, 0); // If the selected content is the object of the file class if (valueat instanceof file) {file = (File) valueat; int size = localqueue. size (); // get the size of the upload queue for (INT I = 0; I <size; I ++) {// traverse the upload queue if (localq Ueue. get (I) [0]. equals (File) {localqueue. remove (I); // delete a file object from the upload queue }}} else if (valueat instanceof string) {// if you select a String object string filestr = (string) valueat; int size = ftpqueue. size (); // get the size of the upload queue for (INT I = 0; I <size; I ++) {// traverse the upload queue // obtain the file object ftpfile = (ftpfile) ftpqueue In the upload queue. get (I) [0]; If (ftpfile. getabsolutepath (). equals (filestr) {ftpqueue. remove (I); // Delete the object from the upload queue.} refreshqueue (); // Refresh the queue list} If (command. equals ("clear") {// process the localqueue event of the clear button. clear (); // call the clear () method of the queue on the local panel ftpqueue. clear (); // call the clear () of the queue on the FTP panel () method }}/ *** handling method of the up and down actions of a queue task ** @ Param command * move up or down Command */private void up_down_action (final string command) {int ROW = queuetable. getselectedrow (); // obtain the current row number of the queue table if (row <0) return; // obtain the first unit value of the current row object valueat = queuetable. getvalueat (row, 0); // obtain the second ticket of the currently selected row The element value is used to determine the upload or download direction. String orientation = (string) queuetable. getvalueat (row, 1); If (orientation. equals ("Upload") {// if it is an upload task string value = (File) valueat ). getabsolutepath (); int size = localqueue. size (); For (INT I = 0; I <size; I ++) {// traverses the upload queue object [] Que = localqueue. get (I); file = (File) que [0]; // traverses the object if (file. getabsolutepath (). equals (value) {listselectionmodel selmodel = queuet Able. getselectionmodel (); // obtain the Selection Model selmodel of the table // set the choice mode of the Selection Model. setselectionmode (listselectionmodel. single_selection); int dsize = localqueue. size (); // get the size of the local upload queue int Drow = queuetable. getselectedrow (); // get the current row number of the queue table int queueval = localqueue. size ()-dsize; int next =-1; int selindex =-1; if (command. equals ("up") {if (I <1) // restriction Selection Range return; selindex = Drow-queueval-1; next = I-1 ;} else {if (I> = Size-1) // restriction Selection Range: return; selindex = Drow-queueval + 1; next = I + 1 ;} // exchange the task object [] temp = localqueue. get (next); localqueue. set (next, que); localqueue. set (I, temp); refreshqueue (); // refresh the list of queue tables // set the table to select the first row of selmodel. setselectioninterval (0, selindex); break ;}} else if (orientation. equals ("Download") {// if it is a download task string value = (string) valueat; int size = ftpqueue. size (); // obtain the size of the FTP download queue for (int I = 0; I <size; I ++) {// traverses the download queue object [] Que = ftpqueue. get (I); ftpfile file = (ftpfile) que [0]; // obtain the FTP file object of each download task if (file. getabsolutepath (). equals (value) {// listselectionmodel selmodel = queuetable. getselectionmodel (); // obtain the Selection Model of the task queue table // set the model to use the single-choice mode selmodel. setselectionmode (single_selection); int dsize = ftpqueue. size (); int Drow = queuetable. getselectedrow (); int queueval = ftpqueue. size ()-DSI Ze; int next =-1; int selindex =-1; if (command. equals ("up") {if (I <1) // restriction Selection Range return; selindex = Drow-queueval-1; next = I-1 ;} else {if (I> = size-1) // select the range of return; selindex = Drow-queueval + 1; next = I + 1 ;} // exchange the task content of a queue. object [] temp = ftpqueue. get (next); ftpqueue. set (next, que); ftpqueue. set (I, temp); refreshqueue (); // refresh the table list of the task queue // select the first row of the table selmodel. setselectioninterval (0, selindex ); Break ;}}}/*** Method for refreshing the queue */private synchronized void refreshqueue () {// If the automatic shutdown button is pressed and the upload and download queues have tasks if (frame. getshutdownbutton (). isselected () & localqueue. isempty () & ftpqueue. isempty () {try {// execute the system shut-down command with a delay of 30 seconds runtime.getruntime(cmd.exe C ("shutdown-s-t 30");} catch (ioexception e) {e. printstacktrace () ;}/// data model object for table creation ululttablemodel model = new defaulttablemodel (columns, 0); // obtain the task object in the local upload queue [] Localqueuearray = localqueue. toarray (); // traverses the local upload task for (INT I = 0; I <localqueuearray. length; I ++) {object [] queuevalue = (object []) localqueuearray [I]; If (queuevalue = NULL) continue; file localfile = (file) queuevalue [0]; // Add the upload queue task to the data model of the table component. addrow (new object [] {localfile. getabsolutefile (), "Upload", ftpclient. getserver (), I = 0? "Uploading": "waiting for upload"});} // obtain the task object of the download queue [] ftpqueuearray = ftpqueue. toarray (); // traverses the download queue for (INT I = 0; I <ftpqueuearray. length; I ++) {object [] queuevalue = (object []) ftpqueuearray [I]; If (queuevalue = NULL) continue; ftpfile = (ftpfile) queuevalue [0]; // Add the download queue task to the data model of the table component. addrow (new object [] {ftpfile. getabsolutepath (), "Download", ftpclient. getserver (), I = 0? "Downloading": "waiting for download"});} queuetable. setmodel (model); // set the table data model used in this method for the table} public Boolean isstop () {return stop ;}}

5. Implementation of the upload queue window

Package COM. oyp. FTP. panel. queue; import Java. AWT. cardlayout; import javax. swing. jpanel; import javax. swing. jscrollpane; import javax. swing. jtable; import javax. swing. swingutilities; import javax. swing. table. defaulttablemodel; import javax. swing. table. tablecolumn; import COM. oyp. FTP. panel. queuetablecellranderer; import COM. oyp. FTP. utils. progressarg; public class uploadpanel extends jpanel {private jtable uploadtable = new jtable (); // table component private jscrollpane scrollpane = new jscrollpane (); Private defaulttablemodel model; // table data model/*** constructor, used to initialize the program interface */Public uploadpanel () {cardlayout = new cardlayout (); setlayout (cardlayout ); progressarg = new progressarg (-1,-1,-1); Model = new defaulttablemodel (new object [] [] {new object [] {"", "", "", "", progressarg }}, New String [] {"file name", "size", "Remote File Name", "host", "status"}); uploadtable. setmodel (model); uploadtable. gettableheader (). setreorderingallowed (false); uploadtable. setrowselectionallowed (false); tablecolumn column = uploadtable. getcolumn ("status"); column. setcellrenderer (New queuetablecellranderer (); scrollpane. setviewportview (uploadtable); cardlayout. layoutcontainer (scrollpane); add (scrollpane, "queue ");} /*** Method for adding a new task to the table component of the upload queue ** @ Param values *-array object for adding a row of data to the table */Public void addrow (final object [] values) {runnable = new runnable () {public void run () {model. insertrow (0, values); // Add data to the table's Data Model }}; if (swingutilities. iseventdispatchthread () runnable. run (); // execute elseswingutilities In the event queue. invokelater (runnable); // or an event queue call }}

6. Implementation of the download queue window

Package COM. oyp. FTP. panel. queue; import Java. AWT. cardlayout; import javax. swing. jpanel; import javax. swing. jscrollpane; import javax. swing. jtable; import javax. swing. swingutilities; import javax. swing. table. defaulttablemodel; import javax. swing. table. tablecolumn; import COM. oyp. FTP. panel. queuetablecellranderer; import COM. oyp. FTP. utils. progressarg; public class downloadpanel extends jpanel {private jtable downloadtable = new jtable (); Private jscrollpane scrollpane = new jscrollpane (); Private defaulttablemodel model; Public downloadpanel () {cardlayout = new cardlayout (); setlayout (cardlayout); progressarg = new progressarg (-1,-1,-1 ); model = new defaulttablemodel (new object [] [] {new object [] {"", "", progressarg }}, new String [] {"file name", "size", "Local file name", "host", "status"}); downloadtable. setmodel (model); downloadtable. gettableheader (). setreorderingallowed (false); downloadtable. setrowselectionallowed (false); tablecolumn column = downloadtable. getcolumn ("status"); column. setcellrenderer (New queuetablecellranderer (); scrollpane. setviewportview (downloadtable); cardlayout. layoutcontainer (scrollpane); add (scrollpane, "queue");} public void addrow (final object [] values) {runnable = new runnable () {public void run () {model. insertrow (0, values) ;}}; if (swingutilities. iseventdispatchthread () runnable. run (); elseswingutilities. invokelater (runnable );}}

The following window details the changes after uploading and downloading

1. Add an upload task

2. upload task completion

3. Add a download task

4. Download task completion

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Author: Ouyang Peng: Welcome to repost. sharing with others is the source of progress!

Reprinted Please retain the original address: http://blog.csdn.net/ouyang_peng

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