Get file from network : Networks « J2ME « Java
Get file from network
/* License
*
* Copyright 1994-2004 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistribution of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * Redistribution in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
* OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN")
* AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
* AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
* REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
* INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
* OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
* EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or intended
* for use in the design, construction, operation or maintenance of any
* nuclear facility.
*/
import java.io.*;
import javax.microedition.io.*;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
public class FirstExample extends MIDlet {
private Display display;
String url = "http://www.javacourses.com/hello.txt";
public FirstExample() {
display = Display.getDisplay(this);
}
/**
* This will be invoked when we start the MIDlet
*/
public void startApp() {
try {
getViaStreamConnection(url);
} catch (IOException e) {
//Handle Exceptions any other way you like.
System.out.println("IOException " + e);
e.printStackTrace();
}
}
/**
* Pause, discontinue ....
*/
public void pauseApp() {
}
/**
* Destroy must cleanup everything.
*/
public void destroyApp(boolean unconditional) {
}
/**
* read url via stream connection
*/
void getViaStreamConnection(String url) throws IOException {
StreamConnection c = null;
InputStream s = null;
StringBuffer b = new StringBuffer();
TextBox t = null;
try {
c = (StreamConnection)Connector.open(url);
s = c.openInputStream();
int ch;
while((ch = s.read()) != -1) {
b.append((char) ch);
}
System.out.println(b.toString());
t = new TextBox("hello....", b.toString(), 1024, 0);
} finally {
if(s != null) {
s.close();
}
if(c != null) {
c.close();
}
}
// display the contents of the file in a text box.
display.setCurrent(t);
}
}
