Disable Button using data from database - sql

hello I am Trying to disabled a button, the login is Ok, and the button is Disabled when the user access, the Scene Changes, that's ok, but the button is Disabled with or without permissions.
this is the code in the AdminScreenController:
public void permisos () {
Integer a=null;
String b;
int p1=1;
int p2=0;
String Bd="jdbc:sqlserver://THUMANO2:1433;databaseName=QUORA";
String Usuario="sa";
String Pass="milkas87";
String SqlQuery= "SELECT PERMISOS FROM USUARIOS WHERE PERMISOS=? or PERMISOS=? ";
Connection Conexion = null;
try {
Conexion=DriverManager.getConnection(Bd, Usuario, Pass);
PreparedStatement ps =Conexion.prepareStatement(SqlQuery);
ps.setInt(1, p1);
ps.setInt(2, p2);
ResultSet rs = ps.executeQuery();
while(rs.next()) {
b= rs.getString("PERMISOS");
a=Integer.parseInt(b) ;
if(1==a) {
btn1.setDisable(false);
System.out.println("uno");
}
else {
btn1.setDisable(true);
System.out.println("cero");
}
}
rs.close();
}catch(SQLException e){
JOptionPane.showMessageDialog(null,"error","ERROR",0);
}
}
#Override
public void initialize(URL location, ResourceBundle resources) {
permisos();
}
this is the data in the DB:

I made it!
---MainController---
----rest of the code---
----While loop-----
if(!usuarioadmin.equals(fusuario.getText().toString())&&pass.equals(fcontrasena.getText().toString().trim())&&usus.equals(fusuario.getText().toString()) ) {
try {
Stage administrador=new Stage();
FXMLLoader carga = new FXMLLoader(getClass().getResource("Admin.fxml"));
Parent StackPane =(Parent) carga.load();
AdminScreenController controller = carga.<AdminScreenController>getController();
controller.deshabilitaboton();
Scene scene = new Scene(StackPane);
scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
administrador.setScene(scene);
administrador.setTitle("AdminScreen");
Stage login=(Stage)fusuario.getScene().getWindow();
login.hide();
administrador.show();
}catch(Exception e) {
Logger.getLogger(Application.class.getName()).log(Level.SEVERE, null, e);
}
}
----ScreenAdminController----
#FXML
private Button btn1;
public void deshabilitaboton() {
btn1.setOnMouseEntered(e->{
btn1.setDisable(true);
});
}

Related

my javafx project doesn't read data from the database

So i created a database table in intellij and i made a javafx project and it's connected to my server(localhost)
now i'm getting errors here
String query = "SELECT * FROM IntellijDB.dbo.Employee WHERE username = ? and passcode = ?";
it says I'm unable to access the table
this is the method
public boolean isLogin(String user,String pass) throws SQLException
{
PreparedStatement preparedStatement = null ;
ResultSet resultSet = null;
String query = "SELECT * FROM IntellijDB.dbo.Employee WHERE username = ? and passcode = ?";
try
{
preparedStatement = connection.prepareStatement(query);
preparedStatement.setString(1,user);
preparedStatement.setString(2,pass);
resultSet = preparedStatement.executeQuery();
if (resultSet.next())
{
return true;
}
else
{
return false;
}
}
catch (Exception e)
{
return false;
//TODO: handle exception
}
finally {
preparedStatement.close();
resultSet.close();
}
}
and the other error here
if (loginModel.isLogin(userAction.getText(), passAction.getText()))
and this line too
resultSet.close();
and I guess they are related and i don't know how to fix this
this is the other code
#FXML
public void Login(ActionEvent event) {
try {
if (loginModel.isLogin(userAction.getText(), passAction.getText())) {
isConnected.setText("Username & password is correct");
}
else
{
isConnected.setText("Check your username or password");
}
} catch (SQLException e)
{
isConnected.setText("Check your username or password");
//TODO Auto-generated catch block
e.printStackTrace();
}
}

API request catches exception NULL response

I am using NYT's developers movie reviews API, and i am at the beginning where i just want to see a response. It appears that i get a NULL response which catches the exception that i will pinpoint on the code. " CharSequence text = "There was an error. Please try again";" to help you find it. Could someone please tell me what causes this problem.
NYT Documentation Link http://developer.nytimes.com/movie_reviews_v2.json#/Documentation/GET/critics/%7Bresource-type%7D.json
public class MainActivity extends AppCompatActivity {
private final String site = "https://api.nytimes.com/svc/movies/v2/reviews/search.json?query=";
public int count;
public int i;
public int j;
public int k;
public int n;
public int comas;
public int ingadded;
public String web2 = "";
public String istos;
public ArrayList<String> mylist = new ArrayList<>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Button next = (Button) findViewById(R.id.button);
final EditText edit_text = (EditText) findViewById(R.id.ing);
final TextView show_ing = (TextView) findViewById(R.id.show_ing);
final Button done = (Button) findViewById(R.id.button3);
final Button refresh = (Button) findViewById(R.id.refresh);
final Button delete = (Button) findViewById(R.id.delete);
final ProgressDialog Dialog = new ProgressDialog(MainActivity.this);
//done move to next activity
done.setOnClickListener(new View.OnClickListener() {
#Override
//CHECK IF TEXT BOX IS EMPTY
public void onClick(View view) {
web2 = edit_text.getText().toString();
//check if there are ingredients added
if (web2 == "") {
Context context = getApplicationContext();
CharSequence text = "Search Bar is Empty!";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
Dialog.dismiss();
}
else {
//IF NOT CREATE THE LINK AND SEND IT TO LongOperation
web2 = edit_text.getText().toString();
//create link - MAYBE THE WAY API KEY MUST BE CALLED?
istos = site + web2 + "?api-key=xxxxxxxxxxxx";
Log.v("Showme=", istos);
web2 = "";
// WebServer Request URL
String serverURL = istos;
// Use AsyncTask execute Method To Prevent ANR Problem
new LongOperation().execute(serverURL);
}
}
});
edit_text.setOnFocusChangeListener(new View.OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus)
edit_text.setHint("");
else
edit_text.setHint("Type the title of the movie");
}
});
private class LongOperation extends AsyncTask<String, String, Void> {
// Required initialization
private final HttpClient Client = new DefaultHttpClient();
private String Content;
private String Error = null;
private Integer count;
private int add = 1;
private ProgressDialog Dialog = new ProgressDialog(MainActivity.this);
String data = "";
TextView jsonParsedname = (TextView) findViewById(R.id.jsonParsedname1);
ArrayList<ArrayList<Integer>> numArray = new ArrayList<ArrayList<Integer>>();
int sizeData = 0;
protected void onPreExecute() {
//Start Progress Dialog (Message)
Dialog.setMessage("Finding Movies..");
Dialog.show();
try {
// Set Request parameter
data = "&" + URLEncoder.encode("data", "UTF-8");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// Call after onPreExecute method
protected Void doInBackground(String... urls) {
/************ Make Post Call To Web Server ***********/
BufferedReader reader = null;
// Send data
try {
// Defined URL where to send data
URL url = new URL(urls[0]);
// Send POST data request
URLConnection conn = url.openConnection();
conn.setDoOutput(true);
OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
wr.write(data);
wr.flush();
// Get the server response
reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuilder sb = new StringBuilder();
String line = "";
// Read Server Response
while ((line = reader.readLine()) != null) {
// Append server response in string
sb.append(line + "");
}
// Append Server Response To Content String
Content = sb.toString();
} catch (Exception ex) {
Error = ex.getMessage();
} finally {
try {
reader.close();
} catch (Exception ex) {
}
}
/*****************************************************/
return null;
}
protected void onPostExecute(Void unused) {
// NOTE: You can call UI Element here.
// Close progress dialog
Dialog.dismiss();
if (Error != null) {
Context context = getApplicationContext();
CharSequence text = "There was an error. Please try again";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
Dialog.dismiss();
} else {
JSONObject jsonResponse;
try {
/****** Creates a new JSONObject with name/value mappings from the JSON string. ********/
jsonResponse = new JSONObject(Content);
if (jsonResponse == null) {
jsonParsedname.setText("Wrong Input");
}
/***** Returns the value mapped by name if it exists and is a JSONArray. ***/
/******* Returns null otherwise. *******/
JSONArray jsonMainNode = jsonResponse.optJSONArray("results");

How to implement a endless Recylerview?

How to implement a endless Recylerview?
This is Activity code:
public class ShopList extends AppCompatActivity {
RecyclerView rview;
RatingBar ratingbar;
private String `urlParameters`;
Recyclerviewshopl adapter;
String category;
JSONArray arr = null;
private Boolean Isinternetpresent = false;
ConnectionDetector cd;
String cat;
ProgressDialog dialog;
String lat,lon;
TextView nodata;
ImageView oops;
double latitude, longitude;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_shop_list);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ratingbar = (RatingBar) findViewById(R.id.ratingbar);
List<Itemshopl> rowListItem = getAllItemList();
rview=(RecyclerView)findViewById(R.id.recycleshop);
nodata=(TextView)findViewById(R.id.nodata);
oops=(ImageView)findViewById(R.id.oops);
nodata.setVisibility(View.GONE);
oops.setVisibility(View.GONE);
// LayerDrawable stars = (LayerDrawable) ratingbar.getProgressDrawable();
//stars.getDrawable(5).setColorFilter(Color.parseColor("#26ce61"),
// PorterDuff.Mode.SRC_ATOP);
// stars.getDrawable(1).setColorFilter(Color.YELLOW, PorterDuff.Mode.SRC_ATOP);
/* RecyclerView.LayoutParams lp = new RecyclerView.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT, //width
ViewGroup.LayoutParams.WRAP_CONTENT);//height
rview.setLayoutParams(lp);*/
Bundle extras = getIntent().getExtras();
cat = extras.getString("category");
lat=extras.getString("lat");
lon=extras.getString("lon");
System.out.println("gr++"+cat);
cd = new ConnectionDetector(getApplicationContext());
Isinternetpresent = cd.isConnectingToInternet();
// onBackPressed();
if(Isinternetpresent)
{
shoplist tasku=new shoplist();
tasku.execute(new String[]{"http://abc**.com/****/getshoplist"});
}else{
// Toast.makeText(UserProfileActivity.this,"No Internet connection",Toast.LENGTH_SHORT).show();
showAlertDialog(ShopList.this, "No Internet Connection", "You don't have internet connection.", false);
}
}
public void showAlertDialog(Context context, String title, String message, Boolean status)
{
AlertDialog alertDialog = new AlertDialog.Builder(context).create();
alertDialog.setTitle(title);
alertDialog.setMessage(message);
// alertDialog.setIcon((status) ? R.drawable.success : R.drawable.fail);
alertDialog.setButton("OK", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
}
});
alertDialog.show();
}
private List<Itemshopl> getAllItemList() {
List<Itemshopl> allItems = new ArrayList<Itemshopl>();
allItems.add(new Itemshopl());
allItems.add(new Itemshopl());
allItems.add(new Itemshopl());
allItems.add(new Itemshopl());
return allItems;
}
private class shoplist extends AsyncTask<String, String, List<Itemshopl>> {
#Override
protected void onPreExecute() {
super.onPreExecute();
dialog = ProgressDialog.show(ShopList.this, "Loading", "Please Wait...", true);
dialog.show();
}
#Override
protected List<Itemshopl> doInBackground(String... urls) {
URL url;
HttpURLConnection connection = null;
BufferedReader reader = null;
try {
urlParameters = "&cat=" + URLEncoder.encode(cat, "UTF-8")+
"&lat="+ URLEncoder.encode(lat, "UTF-8")+
"&lon="+ URLEncoder.encode(lon, "UTF-8");
url = new URL(urls[0]);
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
connection.setUseCaches(false);
connection.setDoInput(true);
connection.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(connection.getOutputStream());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
InputStream stream = connection.getInputStream();
reader = new BufferedReader(new InputStreamReader(stream));
StringBuffer buffer = new StringBuffer();
String line = null;
while ((line = reader.readLine()) != null) {
buffer.append(line + "\n");
}
String finalJson = buffer.toString();
List<Itemshopl> itemshoplist = new ArrayList<>();
arr = new JSONArray(finalJson);
for (int i = 0; i < arr.length(); i++) {
JSONObject obj = arr.getJSONObject(i);
/// String state = obj.getString("status");
Itemshopl model = new Itemshopl();
model.setName(obj.getString("shopname"));
model.setcat1(obj.getString("subcat1"));
model.setcat2(","+obj.getString("subcat2"));
model.setcat3(","+obj.getString("subcat3"));
model.setcat4(","+obj.getString("subcat4"));
model.setThumbnailUrl(obj.getString("logo"));
model.setid(obj.getString("id"));
model.setrating(obj.getString("rating"));
model.setreview(obj.getString("reviews")+"Reviews");
model.setcat(obj.getString("category"));
itemshoplist.add(model);
}
// cacheThis.writeObject(ShopList.this, "name", "hai");
return itemshoplist;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(List<Itemshopl> detailsModels) {
super.onPostExecute(detailsModels);
dialog.dismiss();
if (detailsModels != null && detailsModels.size() > 0) {
nodata.setVisibility(View.GONE);
oops.setVisibility(View.GONE);
rview=(RecyclerView)findViewById(R.id.recycleshop);
rview.setHasFixedSize(true);
adapter = new Recyclerviewshopl(getApplicationContext(), detailsModels);
rview.setLayoutManager(new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.VERTICAL, false));
rview.setAdapter(adapter);
}else
{
nodata.setVisibility(View.VISIBLE);
oops.setVisibility(View.VISIBLE);
}
}
}}
Adapter:
public class Recyclerviewshopl extends RecyclerView.Adapter<Recyclerviewshopl.ViewHolder> {
private List<Itemshopl> itemList;
private Context context;
public Recyclerviewshopl(Context context, List<Itemshopl> itemList) {
this.itemList = itemList;
this.context = context;
}
#Override
public void onBindViewHolder(ViewHolder holder, int position) {
holder.name.setText(itemList.get(position).getName());
holder.icons.setImageResource(itemList.get(position).getPhoto());
holder.cat1.setText(itemList.get(position).getcat1());
holder.cat2.setText(itemList.get(position).getcat2());
holder.cat3.setText(itemList.get(position).getcat3());
holder.cat4.setText(itemList.get(position).getcat4());
holder.id.setText(itemList.get(position).getid());
// holder.review.setText(itemList.get(position).getreview());
holder.image.setText(itemList.get(position).getimg());
Glide.with(context).load(itemList.get(position).getThumbnailUrl()).into(holder.icons );
holder.phone.setText(itemList.get(position).getPhone());
holder.cat.setText(itemList.get(position).getcat());
if(itemList.get(position).getrating().equals(""))
{
itemList.get(position).getrating().equals("0");
} else {
//int value= Integer.parseInt(holder.rate.toString());
holder.rate.setRating(Float.parseFloat(itemList.get(position).getrating()));
}
holder.review.setText(itemList.get(position).getreview());
}
public ViewHolder onCreateViewHolder(ViewGroup parent, int i)
{
View layoutview = LayoutInflater.from(parent.getContext()).inflate(R.layout.cardshoplist, null);
ViewHolder sg = new ViewHolder(layoutview);
return sg;
}
#Override
public int getItemCount() {
return this.itemList.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
TextView name, cat1,cat2,cat3,cat4,review,image,id,phone,cat;
ImageView photo;
ImageView icons;
RatingBar rate;
public ViewHolder(final View itemView) {
super(itemView);
icons = (ImageView) itemView.findViewById(R.id.img1);
name = (TextView) itemView.findViewById(R.id.shopname);
cat=(TextView)itemView.findViewById(R.id.cat);
cat1=(TextView)itemView.findViewById(R.id.cat1);
cat2=(TextView)itemView.findViewById(R.id.cat2);
cat3=(TextView)itemView.findViewById(R.id.cat3);
cat4=(TextView)itemView.findViewById(R.id.cat4);
review=(TextView)itemView.findViewById(R.id.review);
image=(TextView)itemView.findViewById(R.id.img);
id=(TextView)itemView.findViewById(R.id.idvalue);
phone=(TextView)itemView.findViewById(R.id.phone);
rate=(RatingBar)itemView.findViewById(R.id.ratingbar);
itemView.setOnClickListener(new View.OnClickListener() {
int pos = getAdapterPosition();
#Override
public void onClick(View v) {
int pos = getAdapterPosition();
Intent in = new Intent(v.getContext(),ShopeProfile.class);
in.putExtra("id",id.getText().toString());
in.putExtra("shopname",name.getText().toString());
in.putExtra("phone",phone.getText().toString());
in.putExtra("rate",rate.getRating());
in.putExtra("cat",cat.getText().toString());
v.getContext().startActivity(in);
}
});
}
}
}

How to input Info into sql database from JTextField?

I build table. I want to add data from active window. But a.getTabNum() and rest of returned vatiables have the value of null
Here is my code:
JButton add = new JButton();
add.setText("+");
add.setHorizontalAlignment(SwingConstants.TRAILING);
panel.add(add);
//When user clicks he can add new employee
add.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
AddEmp a = new AddEmp();
a.setSize(400,140);
a.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
a.setVisible(true);
String post = a.getPost();
String nameSurname = a.getNameSurname();
String tabNum= a.getTabNum();
Connection connect = null;
PreparedStatement statement1 = null;
try {
connect = DriverManager
.getConnection("jdbc:mysql://localhost/tabel?user=root&password=4499669");
statement1 = connect
.prepareStatement("insert into employee(tab_num, name_surname, position, id_dept) values(?, ?, ?, ?)");
int a1= Integer.parseInt(tabNum);
statement1.setInt(1, a1);
statement1.setString(2,nameSurname);
statement1.setString(3, post);
statement1.setInt(4, num);
statement1.executeUpdate();
// / List of departments
// ////////////////////////////////////////////////////////////////
} catch (Exception ex) {
ex.printStackTrace();
} finally {
try {
connect.close();
} catch (SQLException e1) {
e1.printStackTrace();
}
}
}
});
here is ma AddEmp class:`public class AddEmp extends JFrame{
private static final long serialVersionUID = 1L;
JTextField a = new JTextField(30);
JTextField b = new JTextField(27);
JTextField c = new JTextField(23);
AddEmp self = this;
JLabel a1 = new JLabel("Ф.И.О");
JLabel b1 = new JLabel("Должность");
JLabel c1 = new JLabel("Табельный номер");
JButton o = new JButton("OK");
public AddEmp(){
super("Добавление сотрудника");
setResizable(false);
JPanel p = new JPanel();
p.add(a1);
p.add(a);
p.add(b1);
p.add(b);
p.add(c1);
p.add(c);
o.setHorizontalAlignment(SwingConstants.RIGHT);
p.add(o);
getContentPane().add(p, BorderLayout.CENTER);
o.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
try{
JOptionPane.showMessageDialog(null, "Сотрудник добавлен");
self.setVisible(false);
self.dispose();
}catch(Exception e){
e.printStackTrace();
}
}
});
}
public String getPost() {
return b.getText();
}
public String getNameSurname() {
return a.getText();
}
public String getTabNum() {
return c.getText();
}
}`

J2ME connect localhost nullpointerexception 0

I am trying to connect localhost and insert data into database through j2me application.but when I am connecting the server it shows there is a nullpointerexception 0 error.
this is midlet code
import java.io.DataOutputStream;
import java.io.InputStream;
import javax.microedition.io.HttpConnection;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.StringItem;
import javax.microedition.midlet.*;
public class Midlet_1 extends MIDlet implements CommandListener {
Display mdDisplay;
Form mForm;
StringItem messageitem;
Command exit, connectCommand;
public Midlet_1() {
mForm = new Form("My Counter midlet");
messageitem = new StringItem(null, "");
exit = new Command("Exit", Command.EXIT, 0);
connectCommand = new Command("Connect", Command.SCREEN, 0);
mForm.append(messageitem);
mForm.addCommand(exit);
mForm.addCommand(connectCommand);
mForm.setCommandListener(this);
}
public void startApp() {
mdDisplay = Display.getDisplay(this);
mdDisplay.setCurrent(mForm);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable d) {
if (c == exit) {
notifyDestroyed();
} else if (c == connectCommand) {
Form waitform = new Form("Waiting");
mdDisplay.setCurrent(waitform);
Thread t = new Thread() {
public void run() {
connect();
}
};
t.start();
}
}
private void connect() {
try {
HttpConnection hs = null;
InputStream in = null;
String url = "localhost:8080/testweb/src/save";
hs.setRequestProperty("User-Agent", "Profile/MIDP-2.0,Configuration/CLDC-2.0");
hs.setRequestProperty("Content-Language", "en-US");
hs.setRequestMethod(HttpConnection.POST);
DataOutputStream ds = hs.openDataOutputStream();
ds.writeUTF("nam56");
ds.writeUTF("67");
ds.writeUTF("0716522549");
ds.flush();
ds.close();
in = hs.openInputStream();
int connectlength = (int) hs.getLength();
byte[] raw = new byte[connectlength];
int length = in.read(raw);
// int ch;
// StringBuffer sb=new StringBuffer();
// while((ch=in.read())!=-1){
// sb.append((char)ch);
// }
in.close();
hs.close();
String s = new String(raw, 0, length);
messageitem.setText(s);
} catch (Exception e) {
messageitem.setText(e.toString());
System.out.println(e);
}
mdDisplay.setCurrent(mForm);
}
}
and this is servlet code
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, ClassNotFoundException, SQLException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
DataInputStream in=new DataInputStream(request.getInputStream());
String name=in.readUTF();
String id=in.readUTF();
String contt=in.readUTF();
Connection c=DBcon.setconConnection();
Statement s=c.createStatement();
s.executeUpdate("insert into details values('"+id+"','"+name+"''"+contt+"')");
out.print("successfullllll");
} finally {
out.close();
}
}
please check this out.....
This might work only if you are running an emulator on the same machine as the server. Try to replace locahost by 127.0.0.1.
In your connect() method, I can see that you initialized hs as null then you called setRequestProperty. Try to initialize hs properly before calling its methods.