lokesh jain

Hi,
That's good !! Can you tell me, how you did it. It will add to my knowledge base as well.


regards
Lokesh

Hi, Here I would like to give you a link, which performs servlet to midlet communication. webpage

I think your doubt will be cleared.

regards
Lokesh

hi Archana,
I have given you an example only, you can use the screen capture without use of Database things. To pass byteArray, you need to make the Midlet as client of the servlet. Yes, you can send byteArray from servlet to Midlet. You need to use Canvas class in midlet.

hi,
You need to treat midlet as the WebService client and you can call the method in the midlet then like this
public class DataBaseMidlet extends MIDlet implements Runnable, CommandListener{ private Form form; private Display display; private Command result,exit; private Alert alert; private TextField textf,textf2,textf3,textf4; String DataQuery = ""; String UsrNam =""; String Pswrd = ""; String FilNam = ""; DBconService_Stub dbss; public DataBaseMidlet() { display = Display.getDisplay(this); result = new Command("Ok", Command.OK, 1); exit = new Command("Exit", Command.SCREEN, 1); textf = new TextField("Enter Query :", "", 100, TextField.ANY); // textf.getString() // System.out.println("value of textf >>> "+ textf.getString()); textf2 = new TextField("Enter UserName :", "", 20, TextField.ANY); textf3 = new TextField("Enter Password :", "", 20, TextField.ANY | TextField.PASSWORD); textf4 = new TextField("Enter File Name : ", "", 30, TextField.ANY); form = new Form("Connecting to Database"); form.append(textf); form.append(textf2); form.append(textf3); form.append(textf4); form.addCommand(result); form.addCommand(exit); form.setCommandListener(this); } public void DataBaseResult() { System.out.println("inside Database Result"); DataQuery = textf.getString(); UsrNam = textf2.getString(); Pswrd = textf3.getString(); FilNam = textf4.getString(); new Thread(this).start(); // String st = null; //// String st1 = textf.getString(); // System.out.println("value of SQL Query >>> "+SQLquery); // System.out.println("value of Username >>> "+Uname); // System.out.println("value of Password >>> "+Pass); // // st = FinalResult(SQLquery,Uname,Pass); // // return st; } public void run(){ byte[] st1 = null; try{ dbss = new DBconService_Stub(); System.out.println("Values passed to Stub >> "+DataQuery+ ">>>> "+UsrNam+" >>>>>> "+Pswrd+ ">>>>>> "+FilNam); // st1 st1 = dbss.DB(DataQuery, UsrNam, Pswrd,FilNam); // System.out.println("value of STr >> "+str); System.out.println("value of ST1 >> "+st1); String st2 = st1.toString(); System.out.print("Value of ST2 >> "+st2); form.append(st2); display.setCurrent(form); // st1 = dbss.DB(Sq, Un, Pa); }catch(Exception ex){ Alert serviceAlert = new Alert("Service Problem", "Try it later", null, AlertType.ERROR); serviceAlert.setTimeout(Alert.FOREVER); display.setCurrent(alert, form); System.out.print("Inside Catch "+ex); } // return st1; } public void startApp() { // String str = DataBaseResult(); display.setCurrent(form); } public void pauseApp() { } public void destroyApp(boolean unconditional) { } public void commandAction(Command cmd, Displayable disply) { //throw new UnsupportedOperationException("Not supported yet."); String label = cmd.getLabel(); try{ if(label.equals("Exit")) { destroyApp(false); notifyDestroyed(); }else if(label.equals("Ok")) { DataBaseResult(); } }catch(Exception ex) { System.out.print("inside the CommantAction Exception "+ex); } } }

here dbss.DB(DataQuery, UsrNam, Pswrd,FilNam) is the method of the web service .java file.

regards
Lokesh

Yes, you can do it. You can do it using Netbeans.

regards
Lokesh

Hi all,
I am Lokesh. I want to open any website on Mobile using J2ME. I have written code for that. However I am not getting the result ( website is not opening). Please help me.
formInternet = new Form("Internet"); Browse = new TextField("Enter Website Address", "", 25, 0); String Url = Browse.getString(); try{ try { htc = (HttpConnection) Connector.open(Url); is = htc.openInputStream(); int len = (int)htc.getLength(); int ch; while ((ch = is.read()) != -1) { sb.append((char)ch); } }catch (IOException ex) { ex.printStackTrace(); } }finally { if (is != null) { try { is.close(); } catch (IOException ex) { ex.printStackTrace(); } } if (htc != null) { try { htc.close(); } catch (IOException ex) { ex.printStackTrace(); } }

thanks in advance

hi, You can simply put Textboxes in MessageForm Class. You need to remove super ("Message", "", 250, TextField.ANY); and insert the new textboxes as according to requirement. Hope it can solve the issue.

a million smiles
Lokesh

hi,
I am working on an application in which I made web service which produces reports in .pdf format and I have made a J2ME client for that as well. How can I view the .pdf format reports in J2ME. I am using the Base64 conversion for the data transfer from web services to J2ME client.

regards
Lokesh

Why don't you add list in a form, it will be easy and will reduce the processing time as well.

regards
Lokesh

hi himanshu,
I am really sorry as I am new for recordstore things, however I will check and if get something for you, will message you

regards
Lokesh

hi, please visit any of these 3 links :

webpage


webpage2

webpage3

Hope so that these links will help you:)

hi, you are right, we can do like that. However, I need to get the file as attachment to client side, not getting the Byte Array. Is this possible that, we get the text file and store it in RMS and then read it from RMS itself??

regards
Lokesh

hi all,
I have made a java web service. Which takes SQL query, Username and password of Database to connect to and the file name which i want to give to the created text file as parameters and it returns a text file. Now, I want to receive the same file ( stored at server side) on J2ME client side. If i make a normal Java web service client then I can get the file using DataHandler. However, I am not able to get the file as attachment using the DataHandler at J2ME client side. It said it does not recognize DataHandler, however I tried and the server side code returns the datahandler as byte[]. I tried to take the advantage and in J2ME client took the result as byte[]. But no use It is giving me Uncaught exception java/lang/NullPointerException. Can you please look into it. I am attaching the files, Server side code and the client side code and the files made as stub.
The client side code is here
package DataBaseConnection; import javax.microedition.midlet.*; import javax.microedition.lcdui.*; import java.io.*; /** * @author Lokesh_Jain */ public class DataBaseMidlet extends MIDlet implements Runnable, CommandListener{ private Form form; private Display display; private Command result,exit; private Alert alert; private TextField textf,textf2,textf3,textf4; String DataQuery = ""; String UsrNam =""; String Pswrd = ""; String FilNam = ""; DBconService_Stub dbss; public DataBaseMidlet() { display = Display.getDisplay(this); result = new Command("Ok", Command.OK, 1); exit = new Command("Exit", Command.SCREEN, 1); textf = new TextField("Enter Query :", "", 100, TextField.ANY); // textf.getString() // System.out.println("value of textf >>> "+ textf.getString()); textf2 = new TextField("Enter UserName :", "", 20, TextField.ANY); textf3 = new TextField("Enter Password :", "", 20, TextField.ANY | TextField.PASSWORD); textf4 = new TextField("Enter File Name : ", "", 30, TextField.ANY); form = new Form("Connecting to Database"); form.append(textf); form.append(textf2); form.append(textf3); form.append(textf4); form.addCommand(result); form.addCommand(exit); form.setCommandListener(this); } public void DataBaseResult() { System.out.println("inside Database Result"); DataQuery = textf.getString(); UsrNam = textf2.getString(); Pswrd = textf3.getString(); FilNam = textf4.getString(); new Thread(this).start(); // String st = null; //// String st1 = textf.getString(); // System.out.println("value of SQL Query >>> "+SQLquery); // System.out.println("value of Username >>> "+Uname); // System.out.println("value of Password >>> "+Pass); // // st = FinalResult(SQLquery,Uname,Pass); // // return st; } public void run(){ byte[] st1 = null; try{ dbss = new DBconService_Stub(); System.out.println("Values passed to Stub >> "+DataQuery+ ">>>> "+UsrNam+" >>>>>> "+Pswrd+ ">>>>>> "+FilNam); // st1 String str = dbss.DB(DataQuery, UsrNam, Pswrd,FilNam).toString(); System.out.println("value of STr >> "+str); System.out.println("value of ST1 >> "+st1); String st2 = st1.toString(); System.out.print("Value of ST2 >> "+st2); form.append(st2); display.setCurrent(form); // st1 = dbss.DB(Sq, Un, Pa); }catch(Exception ex){ Alert serviceAlert = new Alert("Service Problem", "Try it later", null, AlertType.ERROR); serviceAlert.setTimeout(Alert.FOREVER); display.setCurrent(alert, form); System.out.print("Inside Catch "+ex); } // return st1; } public void startApp() { // String str = DataBaseResult(); display.setCurrent(form); } public void pauseApp() { } public void destroyApp(boolean unconditional) { } public void commandAction(Command cmd, Displayable disply) { //throw new UnsupportedOperationException("Not supported yet."); String label = cmd.getLabel(); try{ if(label.equals("Exit")) { destroyApp(false); notifyDestroyed(); }else if(label.equals("Ok")) { DataBaseResult(); } }catch(Exception ex) { System.out.print("inside the CommantAction Exception "+ex); } } }

The server side code is ::

/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package trc; import java.io.*; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.Statement; import javax.activation.DataHandler; import javax.activation.FileDataSource; import javax.jws.WebMethod; import javax.jws.WebParam; import javax.jws.WebService; import javax.xml.bind.annotation.XmlMimeType; /** * * @author Chetan_Saini */ @WebService() public class DBcon { /** * Web service operation */ @WebMethod(operationName = "DB") public @XmlMimeType( "application/octet-stream" ) DataHandler DB(@WebParam(name = "Query") String Query, @WebParam(name = "UserName") String UserName, @WebParam(name = "Password") String Password, @WebParam(name = "FileName") String FileName){ DataHandler dh = null; File file = null; Writer writer = null; Connection conn = null; Statement stmt = null; ResultSet rs = null; ResultSetMetaData rsmd = null; String spaces = " "; try{ // String chemin = "D://LuckyDB.accdb"; System.out.println("inside TrY"); FileName = FileName.trim(); System.out.println("after filename"); /* UserName = UserName.trim(); System.out.println("after username"); Password = Password.trim(); System.out.println("after password"); */ Query = Query.trim(); String DriverName = "sun.jdbc.odbc.JdbcOdbcDriver"; String DBUrl = "jdbc:odbc:LuckyDB"; Class.forName(DriverName); System.out.println("before connection"); conn = DriverManager.getConnection(DBUrl, UserName, Password); System.out.println("---connection object value is ---"+conn); stmt = conn.createStatement(); System.out.print("The Query :: "+Query); rs = stmt.executeQuery(Query); rsmd = rs.getMetaData(); System.out.println("Value of RSMD > "+rsmd); int iTemp = 0; String column = ""; String row = ""; System.out.print("The Filename :: "+FileName); file = new File("D:/"+FileName+".txt"); writer = new BufferedWriter(new FileWriter(file)); for(iTemp=1; iTemp<= rsmd.getColumnCount(); iTemp++) { column = rsmd.getColumnLabel(iTemp); column = column.toUpperCase(); writer.write(column+spaces); } while(rs.next()){ for(iTemp=1; iTemp<= rsmd.getColumnCount(); iTemp++){ row = rs.getString(iTemp); writer.write(row+spaces); } // System.out.println("---Roll number---"+rs.getString("RollNo")); //// System.out.println("Value of RS > "+rs.getString(2)); // System.out.println("---Student name---"+rs.getString("StudentName")); // System.out.println("---Student Class---"+rs.getString("StudentClass")); } writer.close(); file = new File("D:/"+FileName+".txt"); dh = new DataHandler(new FileDataSource(file)); conn.close(); }catch(Exception ex){ System.out.println("inside exception "+ex); } //TODO write your implementation code here: return dh; } }

Thanks in advance
Lokesh

hi, I am using the same as you are saying. I am using computer name instead of localhost. However when i try to make j2me as client of web service then it does not ask for WSDL path. It simply accepts the web application and the methods in web application. That is the problem.

hi,
I have made a web service in java and using the j2me as client for that in Netbeans 6.1. This is working fine for the web service and j2me client made on same computer. However when I made the service on another computer, I do not get any idea, how to make j2me as client on my computer? I am using Netbeans 6.1 IDE. Please help me As Soon As Possible.

Thanks in advance
Lokesh