如何從黑莓本機應用程序調用Web服務

Question

這是我在黑莓Java Eclipse插件中的代碼如何在此代碼中調用webservice來通過調用Web服務從以下位置提到_firstName，_lastName，address，mobileNumber在數據庫中的字段這段代碼。 請說關於數據庫和我如何設置黑莓應用程序中的數據庫作爲具體調用黑莓應用程序中的web服務，即在我的ui設計中我有名字，姓氏，mobilenumebr和地址我必須將這些字段存儲在數據庫中調用webservice，請給我一些想法或代碼的web服務和設置數據庫特定於黑莓應用程序。在此先感謝

package mypackage; 
    import net.rim.device.api.database.Database; 
    import net.rim.device.api.database.DatabaseFactory; 
    import net.rim.device.api.database.Statement; 
    import net.rim.device.api.io.URI; 
    import net.rim.device.api.ui.DrawStyle; 
    import net.rim.device.api.ui.Field; 
    import net.rim.device.api.ui.FieldChangeListener; 
    import net.rim.device.api.ui.component.BasicEditField; 
    import net.rim.device.api.ui.component.ButtonField; 
    import net.rim.device.api.ui.component.DateField; 
    import net.rim.device.api.ui.component.Dialog; 
    import net.rim.device.api.ui.component.LabelField; 
    import net.rim.device.api.ui.component.RadioButtonField; 
    import net.rim.device.api.ui.component.RadioButtonGroup; 
    import net.rim.device.api.ui.component.RichTextField; 
    import net.rim.device.api.ui.component.SeparatorField; 
    import net.rim.device.api.ui.container.HorizontalFieldManager; 
    import net.rim.device.api.ui.container.MainScreen; 
    import net.rim.device.api.ui.container.VerticalFieldManager; 

    public final class CreateProfileScreen extends MainScreen { 
     Database d; 
     BasicEditField _firstName = new BasicEditField("First Name:", ""); 

     BasicEditField _lastName = new BasicEditField("Last Name:", ""); 

     BasicEditField mobileNumber = new BasicEditField("MobileNumber:", ""); 

     BasicEditField address = new BasicEditField("Address:", ""); 


     public CreateProfileScreen() { 
      HorizontalFieldManager btns = new HorizontalFieldManager(
        HorizontalFieldManager.FIELD_HCENTER); 

      ButtonField save = new ButtonField("Save", ButtonField.FIELD_HCENTER); 
      // adding these objects to the Blackberry Application. 
      VerticalFieldManager vfm = new VerticalFieldManager(
        VerticalFieldManager.FIELD_LEFT); 
      vfm.add(_firstName); 

      vfm.add(new SeparatorField()); 

      vfm.add(_lastName); 
      vfm.add(new SeparatorField()); 
      vfm.add(mobileNumber); 
      vfm.add(new SeparatorField()); 
      RadioButtonGroup rbg = new RadioButtonGroup(); 
      vfm.add(new RadioButtonField("Male", rbg, true)); 
      vfm.add(new RadioButtonField("Female", rbg, false)); 
      vfm.add(new SeparatorField()); 

      vfm.add(new DateField("DOB:", System.currentTimeMillis(), 
        DateField.DATE | DrawStyle.LEFT)); 
      vfm.add(new SeparatorField()); 
      vfm.add(address); 
      vfm.add(new SeparatorField()); 
      vfm.add(save); 

      add(vfm); 

      FieldChangeListener btnlistener = new FieldChangeListener() { 

       public void fieldChanged(Field field, int context) { 
        // Open a new screen 

        String fname = _firstName.getText(); 
        String lname = _lastName.getText(); 
        String mobno = mobileNumber.getText(); 
        String addr = address.getText(); 

        if (fname.length() == 0 || lname.length() == 0) 
         Dialog.alert("firstname and lastname is mandatory!"); 
        LabelField title = new LabelField("SQLite Insert Data " 
          + "Schema Sample", LabelField.ELLIPSIS 
          | LabelField.USE_ALL_WIDTH); 
        setTitle(title); 
        add(new RichTextField("Attempting to insert data into " 
          + "MyTestDatabase.db on the SDCard.")); 
        try { 
         URI myURI = URI.create("D:///db/" + "MyTestDatabase2.db"); 
         d = DatabaseFactory.open(myURI); 

         Statement st = d 
           .createStatement("INSERT INTO People(Name,Age) " 
             + "VALUES ('John',37)"); 
         st.prepare(); 
         st.execute(); 
         st.close(); 
         d.close(); 
         add(new RichTextField("inserting data successful")); 
         System.out.println("inserting data successful"); 
        } catch (Exception e) { 
         System.out.println(e.getMessage()); 
         e.printStackTrace(); 
        } 

       } 

      }; 
      save.setChangeListener(btnlistener); 
     } 

    } 

Answer 1

試試這個 -

try { 

     String httpURL="www.your url.com/register?fname="+fname_value+"&lname="+lname_value+"&mobno ="+no_value+"&addr="+address_value; 
     HttpConnection httpConn; 
     httpConn = (HttpConnection) Connector.open(httpURL); 
     httpConn.setRequestMethod(HttpConnection.POST); 
     DataOutputStream _outStream = new DataOutputStream(httpConn.openDataOutputStream()); 
     byte[] request_body = httpURL.getBytes(); 
     for (int i = 0; i < request_body.length; i++) { 
      _outStream.writeByte(request_body[i]); 
     } 
     DataInputStream _inputStream = new DataInputStream(
     httpConn.openInputStream()); 
     StringBuffer _responseMessage = new StringBuffer(); 
     int ch; 
     while ((ch = _inputStream.read()) != -1) { 
      _responseMessage.append((char) ch); 
     } 
     String res = (_responseMessage.toString()); 
     String responce = res.trim(); 

     Dialog.alert(responce); 

     httpConn.close(); 


    }catch (Exception e) { 
     Dialog.alert("Error"); 
    }