PESSOAL TENHO O SEGUINTE CÓDIGO PARA UMA MIDLET
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.io.*;
import java.io.*;
public class GetNpost extends MIDlet implements CommandListener
{
private Display display;
private Form fmMain;
private Alert alError;
private Command cmGET;
private Command cmPOST;
private Command cmExit;
private TextField tfAcct;
private TextField tfPwd;
private StringItem siBalance;
private String errorMsg = null;
public GetNpost()
{
display = Display.getDisplay(this);
cmGET = new Command("GET", Command.SCREEN, 2);
cmPOST = new Command("POST", Command.SCREEN, 2);
cmExit = new Command("Sair", Command.EXIT, 1);
tfAcct = new TextField("Conta: ", "", 5, TextField.NUMERIC);
tfPwd = new TextField("Password: ", "", 10, TextField.ANY|TextField.PASSWORD);
siBalance = new StringItem("Saldo: $", "");
fmMain = new Form("Informação da Conta");
fmMain.addCommand(cmExit);
fmMain.addCommand(cmGET);
fmMain.addCommand(cmPOST);
fmMain.append(tfAcct);
fmMain.append(tfPwd);
fmMain.append(siBalance);
fmMain.setCommandListener(this);
}
public void startApp()
{
display.setCurrent(fmMain);
}
public void pauseApp( ) { }
public void destroyApp(boolean unconditional) { }
public void commandAction(Command c, Displayable s)
{
if (c == cmGET || c == cmPOST)
{
try
{
if(c == cmGET)
lookupBalance_withGET();
else
lookupBalance_withPOST();
}
catch (Exception e)
{
System.out.println("Msg: " + e.toString());
}
}
else if(c == cmExit)
{
destroyApp(false);
notifyDestroyed();
}
}
private void lookupBalance_withGET() throws IOException
{
Thread t = new Thread(new Runnable()
{
public void run()
{
HttpConnection http = null;
InputStream iStrm = null;
boolean ret = false;
String url = "http://localhost:8080/GetNpostServlet" + "?" + "account=" + tfAcct.getString() + "&" + "password=" + tfPwd.getString();
try
{
http = (HttpConnection) Connector.open(url);
http.setRequestMethod(HttpConnection.GET);
iStrm = http.openInputStream();
ret = processServerResponse(http, iStrm);
}
catch (IOException e){ e.printStackTrace(); }
finally
{
if(iStrm != null)
try
{
iStrm.close();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
if(http != null)
try
{
http.close();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(ret == false)
showAlert(errorMsg);
}
});
t.start();
}
private void lookupBalance_withPOST() throws IOException
{
Thread t = new Thread(new Runnable()
{
public void run()
{
HttpConnection http = null;
OutputStream oStrm = null;
InputStream iStrm = null;
boolean ret = false;
String url = "http://localhost:8080/GetNpostServlet";
try
{
http = (HttpConnection) Connector.open(url);
oStrm = http.openOutputStream();
http.setRequestMethod(HttpConnection.POST);
http.setRequestProperty("Content-type", "application/x-www-form-urlencoded");
http.setRequestProperty("Conexão", "close");
byte data[] = ("account= " + tfAcct.getString()).getBytes();
oStrm.write(data);
data = ("&password= " + tfPwd.getString()).getBytes();
oStrm.write(data);
oStrm.flush();
iStrm = http.openInputStream();
ret = processServerResponse(http, iStrm);
}
catch (IOException e){ e.printStackTrace(); }
finally
{
if(iStrm != null)
try
{
iStrm.close();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
if(http != null)
try
{
http.close();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(ret == false)
showAlert(errorMsg);
}
});
t.start();
}
private boolean processServerResponse(HttpConnection http, InputStream iStrm) throws IOException
{
errorMsg = null;
if(http.getResponseCode() == HttpConnection.HTTP_OK)
{
int length = (int) http.getLength();
String str;
if(length != -1)
{
byte servletData[] = new byte[length];
iStrm.read(servletData);
str = new String(servletData);
}
else
{
ByteArrayOutputStream bStrm = new ByteArrayOutputStream();
int ch;
while((ch = iStrm.read()) != -1)
bStrm.write(ch);
str = new String(bStrm.toByteArray());
bStrm.close();
}
siBalance.setText(str);
return true;
}
else
errorMsg = new String(http.getResponseMessage());
return false;
}
private void showAlert(String msg)
{
alError = new Alert("Erro", msg, null, AlertType.ERROR);
alError.setTimeout(Alert.FOREVER);
display.setCurrent(alError, fmMain);
}
}
o que acontece é que a servlet não está no ar pq estou tendo problemas em algo q não sei o qé
aeuheaiuheaiuhueai
veja o código da servlet
import java.util.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
public class GetNpostServlet extends HttpServlet
{
protected void doGET(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
String acct = req.getParameter("account"), pwd = req.getParameter("password");
String balance = accountLookup(acct, pwd);
if(balance == null)
{
res.sendError(res.SC_BAD_REQUEST, "Não foi possível localizar a conta...");
return;
}
res.setContentType("text/plain");
PrintWriter out = res.getWriter();
out.print(balance);
out.close();
}
protected void doPOST(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
String acct = req.getParameter("account"), pwd = req.getParameter("password");
String balance = accountLookup(acct, pwd);
if(balance == null)
{
res.sendError(res.SC_BAD_REQUEST, "Não foi possível localizar a conta...");
return;
}
res.setContentType("text/plain");
PrintWriter out = res.getWriter();
out.print(balance);
out.close();
}
private String accountLookup(String acct, String pwd)
{
Connection con = null;
Statement st = null;
StringBuffer msgb = new StringBuffer("");
try
{
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost/cissa?charSet=ISO8859-1", "root", "123456789");
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery("select balance from acctInfo where account = " + acct + " and password = '" + pwd + " ' ");
if(rs.next())
return rs.getString(1);
else
return null;
}
catch(Exception e)
{
return e.toString();
}
}
public String getServletInfo()
{
return "GetNpostServlet 1.0 - www.corej2me.com";
}
}
o código da midlet e da servlet executam perfeitamente
porém na midlet retorna um erro, que a página foi removida enqto q na servlet, retorna um HTTP Status 405 - HTTP method GET is not supported by this URL ....
só por Deus mesmo....
a estrutura de pastas da servlet é a seguinte
GetNpostServlet
--> WEB-INF
--> classes (aqui está o arquivo GetNpostServlet.class)
eu não criei nenhum web.xml, nenhum jsp, nenhum html....
o q poderá ser?
obrigada
