parnian~parnian
شنبه 16 مرداد 1389, 17:44 عصر
کار خیلی خیلی فوری دارم :عصبانی++::عصبانی++::عصبانی++:
من توی برنامه ام جایی احتیاج دارم به نوشتن در فایل و نمونه کوچکی از برنامه ام رو هم گذاشتم ولی مشکل داره یعنی جایی وایمیسته و دیگه کاری انجام نمیده (اونم توی قسمت تایید) راستش وقتم خیلی کمه اگه خودتون نگاه کنین متوجه میشین
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
import java.io.OutputStreamWriter;
import javax.microedition.io.Connector;
import javax.microedition.io.file.FileConnection;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
/**
* @author dell
*/
public class VisualMIDlet extends MIDlet implements CommandListener {
private boolean midletPaused = false;
//<editor-fold defaultstate="collapsed" desc=" Generated Fields ">
private Form form;
private Command exitCommand;
private Command okCommand;
//</editor-fold>
/**
* The VisualMIDlet constructor.
*/
public VisualMIDlet() {
}
public boolean writeFile(String src, String data)
{
javax.microedition.io.Connection c = null;
java.io.OutputStream os = null;
OutputStreamWriter is=null;
try {
c = javax.microedition.io.Connector.open(src, javax.microedition.io.Connector.WRITE);
javax.microedition.io.file.FileConnection fc = (javax.microedition.io.file.FileConnection) c;
if (is == null)
throw new Exception("File Does Not Exist");
fc.close();
c.close();
c = Connector.open(src+"f.txt/", Connector.WRITE);
fc = (FileConnection) c;
if(!fc.exists())
fc.create();
else
fc.truncate(0);
os = fc.openOutputStream();
OutputStreamWriter outWr=new OutputStreamWriter(os,"UTF-8");
outWr.write(data);
outWr.flush();
outWr.close();
return true;
}
catch (Exception e) {
String st1=e.getMessage();
return false;
}
finally {
try {
if (os != null)
{
os.close();
}
if (c != null)
c.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
//<editor-fold defaultstate="collapsed" desc=" Generated Methods ">
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Method: initialize ">
/**
* Initilizes the application.
* It is called only once when the MIDlet is started. The method is called before the <code>startMIDlet</code> method.
*/
private void initialize() {
// write pre-initialize user code here
// write post-initialize user code here
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Method: startMIDlet ">
/**
* Performs an action assigned to the Mobile Device - MIDlet Started point.
*/
public void startMIDlet() {
// write pre-action user code here
switchDisplayable(null, getForm());
// write post-action user code here
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Method: resumeMIDlet ">
/**
* Performs an action assigned to the Mobile Device - MIDlet Resumed point.
*/
public void resumeMIDlet() {
// write pre-action user code here
// write post-action user code here
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Method: switchDisplayable ">
/**
* Switches a current displayable in a display. The <code>display</code> instance is taken from <code>getDisplay</code> method. This method is used by all actions in the design for switching displayable.
* @param alert the Alert which is temporarily set to the display; if <code>null</code>, then <code>nextDisplayable</code> is set immediately
* @param nextDisplayable the Displayable to be set
*/
public void switchDisplayable(Alert alert, Displayable nextDisplayable) {
// write pre-switch user code here
Display display = getDisplay();
if (alert == null) {
display.setCurrent(nextDisplayable);
} else {
display.setCurrent(alert, nextDisplayable);
}
// write post-switch user code here
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Method: commandAction for Displayables ">
/**
* Called by a system to indicated that a command has been invoked on a particular displayable.
* @param command the Command that was invoked
* @param displayable the Displayable where the command was invoked
*/
public void commandAction(Command command, Displayable displayable) {
// write pre-action user code here
if (displayable == form) {
if (command == exitCommand) {
// write pre-action user code here
exitMIDlet();
// write post-action user code here
} else if (command == okCommand) {
// write pre-action user code here
writeFile("file:///e:/f.txt/", "dataaaaaaaaaaaa");
// write post-action user code here
}
}
// write post-action user code here
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Getter: form ">
/**
* Returns an initiliazed instance of form component.
* @return the initialized component instance
*/
public Form getForm() {
if (form == null) {
// write pre-init user code here
form = new Form("form");
form.addCommand(getExitCommand());
form.addCommand(getOkCommand());
form.setCommandListener(this);
// write post-init user code here
}
return form;
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Getter: exitCommand ">
/**
* Returns an initiliazed instance of exitCommand component.
* @return the initialized component instance
*/
public Command getExitCommand() {
if (exitCommand == null) {
// write pre-init user code here
exitCommand = new Command("Exit", Command.EXIT, 0);
// write post-init user code here
}
return exitCommand;
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Getter: okCommand ">
/**
* Returns an initiliazed instance of okCommand component.
* @return the initialized component instance
*/
public Command getOkCommand() {
if (okCommand == null) {
// write pre-init user code here
okCommand = new Command("Ok", Command.OK, 0);
// write post-init user code here
}
return okCommand;
}
//</editor-fold>
/**
* Returns a display instance.
* @return the display instance.
*/
public Display getDisplay () {
return Display.getDisplay(this);
}
/**
* Exits MIDlet.
*/
public void exitMIDlet() {
switchDisplayable (null, null);
destroyApp(true);
notifyDestroyed();
}
/**
* Called when MIDlet is started.
* Checks whether the MIDlet have been already started and initialize/starts or resumes the MIDlet.
*/
public void startApp() {
if (midletPaused) {
resumeMIDlet ();
} else {
initialize ();
startMIDlet ();
}
midletPaused = false;
}
/**
* Called when MIDlet is paused.
*/
public void pauseApp() {
midletPaused = true;
}
/**
* Called to signal the MIDlet to terminate.
* @param unconditional if true, then the MIDlet has to be unconditionally terminated and all resources has to be released.
*/
public void destroyApp(boolean unconditional) {
}
}
من توی برنامه ام جایی احتیاج دارم به نوشتن در فایل و نمونه کوچکی از برنامه ام رو هم گذاشتم ولی مشکل داره یعنی جایی وایمیسته و دیگه کاری انجام نمیده (اونم توی قسمت تایید) راستش وقتم خیلی کمه اگه خودتون نگاه کنین متوجه میشین
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
import java.io.OutputStreamWriter;
import javax.microedition.io.Connector;
import javax.microedition.io.file.FileConnection;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
/**
* @author dell
*/
public class VisualMIDlet extends MIDlet implements CommandListener {
private boolean midletPaused = false;
//<editor-fold defaultstate="collapsed" desc=" Generated Fields ">
private Form form;
private Command exitCommand;
private Command okCommand;
//</editor-fold>
/**
* The VisualMIDlet constructor.
*/
public VisualMIDlet() {
}
public boolean writeFile(String src, String data)
{
javax.microedition.io.Connection c = null;
java.io.OutputStream os = null;
OutputStreamWriter is=null;
try {
c = javax.microedition.io.Connector.open(src, javax.microedition.io.Connector.WRITE);
javax.microedition.io.file.FileConnection fc = (javax.microedition.io.file.FileConnection) c;
if (is == null)
throw new Exception("File Does Not Exist");
fc.close();
c.close();
c = Connector.open(src+"f.txt/", Connector.WRITE);
fc = (FileConnection) c;
if(!fc.exists())
fc.create();
else
fc.truncate(0);
os = fc.openOutputStream();
OutputStreamWriter outWr=new OutputStreamWriter(os,"UTF-8");
outWr.write(data);
outWr.flush();
outWr.close();
return true;
}
catch (Exception e) {
String st1=e.getMessage();
return false;
}
finally {
try {
if (os != null)
{
os.close();
}
if (c != null)
c.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
//<editor-fold defaultstate="collapsed" desc=" Generated Methods ">
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Method: initialize ">
/**
* Initilizes the application.
* It is called only once when the MIDlet is started. The method is called before the <code>startMIDlet</code> method.
*/
private void initialize() {
// write pre-initialize user code here
// write post-initialize user code here
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Method: startMIDlet ">
/**
* Performs an action assigned to the Mobile Device - MIDlet Started point.
*/
public void startMIDlet() {
// write pre-action user code here
switchDisplayable(null, getForm());
// write post-action user code here
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Method: resumeMIDlet ">
/**
* Performs an action assigned to the Mobile Device - MIDlet Resumed point.
*/
public void resumeMIDlet() {
// write pre-action user code here
// write post-action user code here
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Method: switchDisplayable ">
/**
* Switches a current displayable in a display. The <code>display</code> instance is taken from <code>getDisplay</code> method. This method is used by all actions in the design for switching displayable.
* @param alert the Alert which is temporarily set to the display; if <code>null</code>, then <code>nextDisplayable</code> is set immediately
* @param nextDisplayable the Displayable to be set
*/
public void switchDisplayable(Alert alert, Displayable nextDisplayable) {
// write pre-switch user code here
Display display = getDisplay();
if (alert == null) {
display.setCurrent(nextDisplayable);
} else {
display.setCurrent(alert, nextDisplayable);
}
// write post-switch user code here
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Method: commandAction for Displayables ">
/**
* Called by a system to indicated that a command has been invoked on a particular displayable.
* @param command the Command that was invoked
* @param displayable the Displayable where the command was invoked
*/
public void commandAction(Command command, Displayable displayable) {
// write pre-action user code here
if (displayable == form) {
if (command == exitCommand) {
// write pre-action user code here
exitMIDlet();
// write post-action user code here
} else if (command == okCommand) {
// write pre-action user code here
writeFile("file:///e:/f.txt/", "dataaaaaaaaaaaa");
// write post-action user code here
}
}
// write post-action user code here
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Getter: form ">
/**
* Returns an initiliazed instance of form component.
* @return the initialized component instance
*/
public Form getForm() {
if (form == null) {
// write pre-init user code here
form = new Form("form");
form.addCommand(getExitCommand());
form.addCommand(getOkCommand());
form.setCommandListener(this);
// write post-init user code here
}
return form;
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Getter: exitCommand ">
/**
* Returns an initiliazed instance of exitCommand component.
* @return the initialized component instance
*/
public Command getExitCommand() {
if (exitCommand == null) {
// write pre-init user code here
exitCommand = new Command("Exit", Command.EXIT, 0);
// write post-init user code here
}
return exitCommand;
}
//</editor-fold>
//<editor-fold defaultstate="collapsed" desc=" Generated Getter: okCommand ">
/**
* Returns an initiliazed instance of okCommand component.
* @return the initialized component instance
*/
public Command getOkCommand() {
if (okCommand == null) {
// write pre-init user code here
okCommand = new Command("Ok", Command.OK, 0);
// write post-init user code here
}
return okCommand;
}
//</editor-fold>
/**
* Returns a display instance.
* @return the display instance.
*/
public Display getDisplay () {
return Display.getDisplay(this);
}
/**
* Exits MIDlet.
*/
public void exitMIDlet() {
switchDisplayable (null, null);
destroyApp(true);
notifyDestroyed();
}
/**
* Called when MIDlet is started.
* Checks whether the MIDlet have been already started and initialize/starts or resumes the MIDlet.
*/
public void startApp() {
if (midletPaused) {
resumeMIDlet ();
} else {
initialize ();
startMIDlet ();
}
midletPaused = false;
}
/**
* Called when MIDlet is paused.
*/
public void pauseApp() {
midletPaused = true;
}
/**
* Called to signal the MIDlet to terminate.
* @param unconditional if true, then the MIDlet has to be unconditionally terminated and all resources has to be released.
*/
public void destroyApp(boolean unconditional) {
}
}