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How to read input field and load in webview?

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posted 6 years ago

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im making an javafx application in which there is two text field input url and output url and submit button in input url the url which user will enter will load in webview and in output url the path to save the html of that loaded url will save how to do this action. what i had tried is this

/*
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 */
package crawler1;

import java.io.StringWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.concurrent.Worker;
import javafx.scene.Scene;
import javafx.scene.layout.HBox;
import javafx.scene.layout.StackPane;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;

/**
 *
 * @author biznis
 */
public class Crawler1 extends Application{
 // A HTML Content with a javascript function.
   private static final String HTML_STRING = //
           "<html>"//
                   + "<head> " //
                   + "</head> "//
                   + "<body> "//
                   + "   <b>Input Url:</b> "//
                   + "   <input id='color' value='' /> "//
                   +"</br>"//
                   + "   <b>Output Url:</b> "//
                   + "   <input id='color' value='' /> "//
                   +"</br>"//
                   + "   <button onclick=''>Submit</button> "//
                   + "</body> "//
                   + "</html> "//
   ;
    @Override
    public void start(Stage primaryStage) throws Exception {
        
        
        StackPane root = new StackPane();
        // create a HBox to hold 2 vboxes        
          HBox hbox = new HBox(10);
        // create a vbox with a textarea that grows vertically
       // HBox vbox = new VBox(10);
        //Label label1 = new Label("");
        final WebView browser = new WebView();
        final WebEngine wb = browser.getEngine();
        final WebView browser1 = new WebView();
        final WebEngine wb1 = browser1.getEngine();
        wb1.setJavaScriptEnabled(true);
 
       wb1.loadContent(HTML_STRING);
    //grid.add(new Label("Input Url: "), 0, 0);
   // grid.add(notification, 1, 0);
        //  wb.load("http://epaper.timesgroup.com/Olive/ODN/TheEconomicTimes/#");
        wb.getLoadWorker().stateProperty().addListener(
            new ChangeListener<Worker.State>() {
                @Override
                public void changed(ObservableValue ov, Worker.State oldState, Worker.State newState) {
                    if (newState == Worker.State.SUCCEEDED) {
                        Document doc =   wb.getDocument();
                        try {
                            Transformer transformer = TransformerFactory.newInstance().newTransformer();
                            transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
                            transformer.setOutputProperty(OutputKeys.METHOD, "xml");
                            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
                            transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
                            transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
                            StringWriter stringWriter = new StringWriter();
                            transformer.transform(new DOMSource(doc),
                                    new StreamResult(stringWriter));
                            String xml1 = stringWriter.getBuffer().toString();
                            System.out.println(xml1);
                     //browser.getEngine().loadContent(xml1);
            hbox.getChildren().addAll(browser, browser1);
      
            root.getChildren().add(hbox);
            Scene scene = new Scene(root, 500, 300); // the stack pane is the root node

primaryStage.setScene(scene);
            primaryStage.show();
         //  btn2.setOnAction(new EventHandler<ActionEvent>() {
            // @Override
           //  public void handle(ActionEvent event) {
                /*  URL url;
    InputStream is = null;
    BufferedReader br;
    String line;
             url = new URL(quantity);
        is = url.openStream();  // throws an IOException
        br = new BufferedReader(new InputStreamReader(is));
       
        while ((line = br.readLine()) != null) {
            System.out.println(line);
             }
             }*/
   
                        } catch (TransformerConfigurationException ex) {
                            Logger.getLogger(Crawler1.class.getName()).log(Level.SEVERE, null, ex);
                        } catch (TransformerException ex) {
                            Logger.getLogger(Crawler1.class.getName()).log(Level.SEVERE, null, ex);
                        }
                    }
                }
            });
    }
 public static void main(String[] args) {
        Application.launch(args);
    }

}

i dont knw how in javafx input field can be get and get loaded.please help

Knute Snortum

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posted 6 years ago

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You really need to go through some basic JavaFX tutorials. Start here, under JavaFX:

https://docs.oracle.com/javase/8/javase-clienttechnologies.htm

If you're impatient and want to skip to how to input data from your GUI, try here:

https://docs.oracle.com/javase/8/javafx/get-started-tutorial/form.htm

All things are lawful, but not all things are profitable.

Niti Kapoor

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posted 6 years ago

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thanks knute i had studied documentation and had implemented but can you tell mei how to do action to load url in webview and save html in particular path.

Niti Kapoor

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Posts: 407

posted 6 years ago

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/**
 *
 * @author biznis
 */

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import static javafx.geometry.HPos.RIGHT;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
public class Url extends Application{
    @Override
    public void start(Stage primaryStage) throws Exception {
        
        
        StackPane root = new StackPane();
        // create a HBox to hold 2 vboxes        
          HBox hbox = new HBox(10);
        // create a vbox with a textarea that grows vertically
       // HBox vbox = new VBox(10);
        //Label label1 = new Label("");
        final WebView browser = new WebView();
        final WebEngine wb = browser.getEngine();
        
 GridPane grid = new GridPane();
grid.setAlignment(Pos.CENTER);
grid.setHgap(5);
grid.setVgap(15);
grid.setPadding(new Insets(25, 25, 25, 25));
Label userName = new Label("Input Url:");
grid.add(userName, 0, 1);

TextField userTextField = new TextField();
grid.add(userTextField, 1, 1);

Label pw = new Label("Output Url:");
grid.add(pw, 0, 2);

PasswordField pwBox = new PasswordField();
grid.add(pwBox, 1, 2);
Button btn = new Button("Submit");
HBox hbBtn = new HBox(10);
hbBtn.setAlignment(Pos.BOTTOM_RIGHT);
hbBtn.getChildren().add(btn);
grid.add(hbBtn, 1, 4);
final Text actiontarget = new Text();
        grid.add(actiontarget, 1, 6);
        btn.setOnAction(new EventHandler<ActionEvent>() {
 
    @Override
    public void handle(ActionEvent e) {
        actiontarget.load(wb);
        actiontarget.setText("Sign in button pressed");
    }
});
     //  wb1.loadContent(HTML_STRING);  
      hbox.getChildren().addAll(browser, grid);
        
            root.getChildren().add(hbox);
            Scene scene = new Scene(root, 500, 300); // the stack pane is the root node

primaryStage.setScene(scene);
            primaryStage.show();
              
                    }
                
           
 public static void main(String[] args) {
        Application.launch(args);
    }

}

this is the code which i had try

Niti Kapoor

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Posts: 407

posted 6 years ago

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/**
 *
 * @author biznis
 */

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import static javafx.geometry.HPos.RIGHT;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
public class Url extends Application{
    @Override
    public void start(Stage primaryStage) throws Exception {
        
        
        StackPane root = new StackPane();
        // create a HBox to hold 2 vboxes        
          HBox hbox = new HBox(10);
        // create a vbox with a textarea that grows vertically
       // HBox vbox = new VBox(10);
        //Label label1 = new Label("");
        final WebView browser = new WebView();
        final WebEngine wb = browser.getEngine();
        
 GridPane grid = new GridPane();
grid.setAlignment(Pos.CENTER);
grid.setHgap(5);
grid.setVgap(15);
grid.setPadding(new Insets(25, 25, 25, 25));
Label userName = new Label("Input Url:");
grid.add(userName, 0, 1);

TextField userTextField = new TextField();
grid.add(userTextField, 1, 1);
userTextField.setPromptText("");
Label pw = new Label("Output Url:");
grid.add(pw, 0, 2);

TextField userTextField1 = new TextField();
grid.add(userTextField1, 1, 2);
userTextField1.setPromptText("enter path ");
userTextField1.getText();
Button btn = new Button("Submit");
HBox hbBtn = new HBox(10);
hbBtn.setAlignment(Pos.BOTTOM_RIGHT);
hbBtn.getChildren().add(btn);
grid.add(hbBtn, 1, 4);
final Text actiontarget = new Text();
        grid.add(actiontarget, 1, 6);
        btn.setOnAction(new EventHandler<ActionEvent>() {
 
    @Override
    public void handle(ActionEvent e) {
      
String txt =userTextField.getText();
  Alert alert = new Alert(AlertType.INFORMATION);
alert.setTitle(txt);
alert.setHeaderText("Look, an Information Dialog");
alert.setContentText("I have a great message for you!");
alert.showAndWait();
       if ((txt != null && !txt.isEmpty())) {
           // alert.showAndWait();
           wb.load(txt);
           // alert.showAndWait();
       // userTextField.load(wb);
     //   actiontarget.load(wb);
        actiontarget.setText("downloading in progress");
    }
}
        });
     //  wb1.loadContent(HTML_STRING);  
      hbox.getChildren().addAll(browser, grid);
        
            root.getChildren().add(hbox);
            Scene scene = new Scene(root, 500, 300); // the stack pane is the root node

primaryStage.setScene(scene);
            primaryStage.show();
              
                    }
                
    
 public static void main(String[] args) {
        Application.launch(args);
    }

}

thanks i hads achieve everything with documentation just tell me why textfield is not loading in webview im able to read the textfield as i had check using alert

Niti Kapoor

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Posts: 407

posted 6 years ago

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resolved by adding http:// in textfield thanks

Don't get me started about those stupid light bulbs.