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| package hello;
import javax.microedition.io.*;
import java.io.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
public class Connection extends MIDlet implements CommandListener {
private Display display;
private TextField userName;
private TextField password;
private Form form;
private Command cancel;
private Command login;
String url = "http://192.168.0.12:8082/mobile/listcmdssss";
public Connection() {
userName = new TextField("LoginID:", "", 10, TextField.ANY);
password = new TextField("Password:", "", 10, TextField.PASSWORD);
form = new Form("Sign in");
cancel = new Command("Cancel", Command.CANCEL, 2);
login = new Command("Login", Command.OK, 2);
}
public void startApp() {
display = Display.getDisplay(this);
form.append(userName);
form.append(password);
form.addCommand(cancel);
form.addCommand(login);
form.setCommandListener(this);
display.setCurrent(form);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
notifyDestroyed();
}
public void menu() {
List services = new List("Choose one", Choice.EXCLUSIVE);
services.append("Check Mail", null);
services.append("Compose", null);
services.append("Addresses", null);
services.append("Options", null);
services.append("Sign Out", null);
display.setCurrent(services);
}
public void tryAgain() {
Alert error = new Alert("Login Incorrect", "Please try again", null, AlertType.ERROR);
error.setTimeout(Alert.FOREVER);
userName.setString("");
password.setString("");
display.setCurrent(error, form);
}
public void commandAction(Command c, Displayable d) {
String label = c.getLabel();
if(label.equals("Cancel")) {
destroyApp(true);
} else if(label.equals("Login")) {
try {
invokeServlet(url);
} catch (IOException ex) {
}
}
}
void invokeServlet(String url) throws IOException {
HttpConnection c = null;
InputStream is = null;
OutputStream os = null;
StringBuffer b = new StringBuffer();
TextBox t = null;
try {
c = (HttpConnection)Connector.open(url);
c.setRequestMethod(HttpConnection.POST);
c.setRequestProperty("CONTENT-TYPE","application/x-www-form-urlencoded");
c.setRequestProperty("User-Agent","Profile/MIDP-1.0 Confirguration/CLDC-1.0");
c.setRequestProperty("Content-Language", "en-CA");
os = c.openOutputStream();
..............
}
os.flush();
is = c.openDataInputStream();
int ch;
while ((ch = is.read()) != -1) {
b.append((char) ch);
System.out.print((char)ch);
}
t = new TextBox("Second Servlet", b.toString(), 1024, 0);
// t.addCommand(backCommand);
t.setCommandListener(this);
} finally {
if(is!= null) {
is.close();
}
if(os != null) {
os.close();
}
if(c != null) {
c.close();
}
}
display.setCurrent(t);
}
} |
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