nie rozumiem co z tym kodem przykładowym jest nie tak.. emulator telefonu pyta o polaczenie z internetem i jak klikam YES to nie zmienia sie ekran.. wreszcie wszedlem pod URL ten co jest w kodzie i okazalo sie ze tam juz nie stoi ten servlet. No dobra to stworzylem wlasny plik
http://kolos.math.uni.lodz.pl/~bart/skrypt.php
ktory ma zawartosc
<?php
var_dump($_POST);
?>
co powinno wywalic co sie postem wyslalo.. ale dalej to samo "Czy polaczyc z internetem o URL podanym...?" i YES nic nie zmienia.. nie wiem co jest grane
prosze o pomoc
oto kod:
package futbol24;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.io.*;
import java.io.*;
public class Sample1 extends MIDlet implements CommandListener {
/*
* the default value for the URL string is * http://www.webyu.com/servlets/webyu/wirelessdevnetsample1
*/
private static String defaultURL = "http://www.webyu.com/servlets/webyu/wirelessdevnetsample1";
// GUI component for user to enter String
private Display myDisplay = null;
private Form mainScreen;
private TextField requestField;
// GUI component for displaying header information
private Form resultScreen;
private StringItem resultField;
// the "SEND" button used on the mainScreen
Command sendCommand = new Command("SEND", Command.OK, 1);
// the "BACK" button used on the resultScreen
Command backCommand = new Command("BACK", Command.OK, 1);
public Sample1(){
// initializing the GUI components for entering Web URL
myDisplay = Display.getDisplay(this);
mainScreen = new Form("Type in a string:");
requestField = new TextField(null, "GREAT ARTICLE", 100, TextField.ANY);
mainScreen.append(requestField);
mainScreen.addCommand(sendCommand);
mainScreen.setCommandListener(this);
}
public void startApp() {
myDisplay.setCurrent(mainScreen);
}
public void pauseApp() { }
public void destroyApp(boolean unconditional) { }
public void commandAction(Command c, Displayable s) {
if (c == sendCommand) {
// retrieving the String that user entered
String requeststring = requestField.getString();
// sending a POST request to Web server
String resultstring = sendPostRequest(requeststring);
// displaying the response back from Web server
resultScreen = new Form("Result String:");
resultField = new StringItem(null, resultstring);
resultScreen.append(resultField);
resultScreen.addCommand(backCommand);
resultScreen.setCommandListener(this);
myDisplay.setCurrent(resultScreen);
} else if (c == backCommand) {
// do it all over again
requestField.setString("SOMETHING GOOD");
myDisplay.setCurrent(mainScreen);
}
}
// send a POST request to Web server
public String sendPostRequest(String requeststring) {
HttpConnection hc = null;
DataInputStream dis = null;
DataOutputStream dos = null;
StringBuffer messagebuffer = new StringBuffer();
try {
// Open up a http connection with the Web server
// for both send and receive operations
hc = (HttpConnection) Connector.open(defaultURL, Connector.READ_WRITE);
// Set the request method to POST
hc.setRequestMethod(HttpConnection.POST);
// Send the string entered by user byte by byte
dos = hc.openDataOutputStream();
byte[] request_body = requeststring.getBytes();
for (int i = 0; i < request_body.length; i++) {
dos.writeByte(request_body[i]);
}
dos.flush();
dos.close();
// Retrieve the response back from the servlet
dis = new DataInputStream(hc.openInputStream());
int ch;
// Check the Content-Length first
long len = hc.getLength();
if(len!=-1) {
for(int i = 0;i<len;i++)
if((ch = dis.read())!= -1) {
messagebuffer.append((char)ch);
} else {
// if the content-length is not available
while ((ch = dis.read()) != -1)
messagebuffer.append((char) ch);
}
}
dis.close();
}
catch (IOException ioe) {
messagebuffer = new StringBuffer("ERROR!");
}
finally {
// Free up i/o streams and http connection
try {
if (hc != null) hc.close();
} catch (IOException ignored) {}
try {
if (dis != null) dis.close();
} catch (IOException ignored) {}
try {
if (dos != null) dos.close();
} catch (IOException ignored) {}
}
return messagebuffer.toString();
}
}