I'm using Java to check the response of a url I pass in. This is the current code I'm using. However, I keep getting a connection refused error. I'm testing with the basic Google home page so that I know the rough draft of my code works.
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import javax.net.ssl.HttpsURLConnection;
public class connectTest {
public static void main(String[] args)
{
boolean test = pageExists();
}
public static boolean pageExists(){
int returnCode= 0;
try {
HttpURLConnection.setFollowRedirects(false);
String httpsURL = "https://www.google.com/";
URL testUrl = new URL(httpsURL);
HttpsURLConnection con =
(HttpsURLConnection)testUrl.openConnection();
returnCode= con.getResponseCode();
System.out.println(returnCode);
} catch (Exception e) {
e.printStackTrace();
}
if (returnCode== HttpURLConnection.HTTP_OK){
return true;
}
else if (returnCode== HttpURLConnection.HTTP_BAD_REQUEST || returnCode==
HttpURLConnection.HTTP_NOT_FOUND ){
return false;
}
else
{
System.out.println("The return code was not 200,400 or 404");
return false;
}
}
}
This is the error I get when I run the following:
java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.security.ssl.SSLSocketImpl.connect(Unknown Source)
at sun.security.ssl.BaseSSLSocketImpl.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.<init>(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at java.net.HttpURLConnection.getResponseCode(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
Related
I am creating an article summarization project however I am a beginner in java and cannot fix the error. What I am trying to do is get the URL's from Bing search API for custom query which I can later summarize.
package Summarizer;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Scanner;
import org.core4j.Enumerable;
import org.odata4j.consumer.ODataConsumer;
import org.odata4j.consumer.ODataConsumers;
import org.odata4j.consumer.behaviors.OClientBehaviors;
import org.odata4j.core.OEntity;
import org.odata4j.core.OQueryRequest;
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* #author Safer
*/
public class Crawler {
ArrayList<String> links = new ArrayList<String>();
String qry;
int count = 10;
public Crawler(String qry) {
this.qry = qry;
getURL();
printToFile();
}
public Crawler(String qry, int count) {
this.qry = qry;
this.count = count;
getURL();
printToFile();
}
public static void main(String[] args) {
Crawler crawller = new Crawler("paris attack");
crawller.getURL();
crawller.printToFile();
}
public void getURL() {
qry = "\'" + qry + "\'";
//System.setProperty("https.proxyHost", "172.31.1.4");
//System.setProperty("https.proxyPort", "8080");
ODataConsumer c = ODataConsumers.newBuilder("https://api.datamarket.azure.com/Bing/Search").setClientBehaviors(OClientBehaviors.basicAuth("accountKey", "I/JMZMShDneSQBg6o+21hcz5eEjR4ROyxnFwG1K4iRM")).build();
OQueryRequest<OEntity> oRequest = c.getEntities("Web").custom("Query", qry);
Enumerable<OEntity> entities = oRequest.execute();
Iterator i = entities.iterator();
while (i.hasNext() && count > 0) {
String[] fields = i.next().toString().split("OProperty");
String link = fields[fields.length - 1].split(",")[2];
links.add(link.substring(0, link.length() - 2));
System.out.println(link.substring(0, link.length() - 2));
count --;
}
}
public void printToFile() {
System.out.println(links.size());
try {
PrintWriter out = new PrintWriter("URL\\urlfile.txt");
for (int i = 0 ; i < links.size() ; i ++) {
out.println(links.get(i));
}
out.close();
}catch(Exception ex){}
}
}
i expect the output to generate the summary of the links from bing search api but couldn't fetch the url
and i am getting this kinda error
Exception in thread "AWT-EventQueue-0" com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection timed out: connect
at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:128)
at com.sun.jersey.api.client.Client.handle(Client.java:457)
at com.sun.jersey.api.client.WebResource.handle(WebResource.java:557)
at com.sun.jersey.api.client.WebResource.access$300(WebResource.java:69)
at com.sun.jersey.api.client.WebResource$Builder.method(WebResource.java:539)
at org.odata4j.jersey.consumer.ODataJerseyClient.doRequest(ODataJerseyClient.java:143)
at org.odata4j.consumer.AbstractODataClient.getMetadata(AbstractODataClient.java:43)
at org.odata4j.consumer.AbstractODataConsumer$CachedEdmDataServices.refreshDelegate(AbstractODataConsumer.java:212)
at org.odata4j.consumer.AbstractODataConsumer$CachedEdmDataServices.getDelegate(AbstractODataConsumer.java:205)
at org.odata4j.internal.EdmDataServicesDecorator.findEdmEntitySet(EdmDataServicesDecorator.java:46)
at org.odata4j.consumer.AbstractODataConsumer$CachedEdmDataServices.findEdmEntitySet(AbstractODataConsumer.java:221)
at org.odata4j.consumer.AbstractODataConsumer.getFeedCustomizationMapping(AbstractODataConsumer.java:235)
at org.odata4j.consumer.AbstractODataConsumer.getEntities(AbstractODataConsumer.java:73)
at org.odata4j.consumer.AbstractODataConsumer.getEntities(AbstractODataConsumer.java:69)
at Summarizer.Crawler.getURL(Crawler.java:51)
at Summarizer.Crawler.<init>(Crawler.java:37)
at Summarizer.Summary.<init>(Summary.java:30)
at GUI.Base.jButton3ActionPerformed(Base.java:344)
at GUI.Base.access$3(Base.java:331)
at GUI.Base$4.actionPerformed(Base.java:135)
at java.desktop/javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at java.desktop/javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.desktop/java.awt.Component.processMouseEvent(Unknown Source)
at java.desktop/javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.desktop/java.awt.Component.processEvent(Unknown Source)
at java.desktop/java.awt.Container.processEvent(Unknown Source)
at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source)
at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
at java.desktop/java.awt.Window.dispatchEventImpl(Unknown Source)
at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.desktop/java.awt.EventQueue.access$600(Unknown Source)
at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.desktop/java.awt.EventQueue$5.run(Unknown Source)
at java.desktop/java.awt.EventQueue$5.run(Unknown Source)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.base/java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.base/java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.base/java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.base/java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.base/java.net.PlainSocketImpl.connect(Unknown Source)
at java.base/java.net.SocksSocketImpl.connect(Unknown Source)
at java.base/java.net.Socket.connect(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.connect(Unknown Source)
at java.base/sun.security.ssl.BaseSSLSocketImpl.connect(Unknown Source)
at java.base/sun.net.NetworkClient.doConnect(Unknown Source)
at java.base/sun.net.www.http.HttpClient.openServer(Unknown Source)
at java.base/sun.net.www.http.HttpClient.openServer(Unknown Source)
at java.base/sun.net.www.protocol.https.HttpsClient.<init>(Unknown Source)
at java.base/sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source)
at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at java.base/java.net.HttpURLConnection.getResponseCode(Unknown Source)
at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
at com.sun.jersey.client.urlconnection.URLConnectionClientHandler._invoke(URLConnectionClientHandler.java:215)
at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:126)
... 55 more
I am trying to package a jar file containing a sqlite database for my application to run on another computer. After packaging the the application i tried running it in another computer and it throws this error :
I want to either create an exe file or a jar file so that i can give other users the file to run on there computers.
I created my database externally using sql DBbrowser and i added it to the resources folder within my application.
SQL error or missing database (no such table: users)
These are the tables in my database:
This is my code :
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
public class DBConnection {
private static Connection conn;
private static String url = "jdbc:sqlite:mydb.db";
private static String user = "root";//Username of database
private static String pass = "yes";//Password of database
public static Connection connect() throws SQLException {
try {
Class.forName("org.sqlite.JDBC").newInstance();
} catch (ClassNotFoundException cnfe) {
System.err.println("Error: " + cnfe.getMessage());
} catch (InstantiationException ie) {
System.err.println("Error: " + ie.getMessage());
} catch (IllegalAccessException iae) {
System.err.println("Error: " + iae.getMessage());
}
conn = DriverManager.getConnection(url);
System.out.println("CONNECTED!!");
return conn;
}
public static Connection getConnection() throws SQLException, ClassNotFoundException {
if (conn != null && !conn.isClosed())
return conn;
connect();
return conn;
}
public static void infoBox(String infoMessage, String titleBar, String headerMessage) {
Alert alert = new Alert(AlertType.INFORMATION);
alert.setTitle(titleBar);
alert.setHeaderText(headerMessage);
alert.setContentText(infoMessage);
alert.showAndWait();
}
}
This is where i access the table called users:
import java.sql.ResultSet;
import java.io.IOException;
import java.net.URL;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Node;
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.stage.Stage;
import static pkg3treka.DBConnection.getConnection;
public class FXMLDocumentController implements Initializable {
#FXML
private Button button;
#FXML
private Label label;
#FXML
private TextField textField;
#FXML
private TextField textPassword;
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet resultSet = null;
public FXMLDocumentController() throws SQLException {
try {
connection = DBConnection.getConnection();
} catch (ClassNotFoundException ex) {
Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.SEVERE, null, ex);
}
}
#FXML
void handleButtonAction(ActionEvent event) {
boolean isAdmin = false;
String username = textField.getText();
String password = textPassword.getText();
if( username.length()>=6 && "admin/".equals(username.substring(0,6))){
isAdmin = true;
username = textField.getText().substring(6);
System.out.println("---->"+username);
}
String sql = "SELECT * FROM users WHERE U_username = ? and U_password = ?";
try{
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, username);
preparedStatement.setString(2, password);
resultSet = (ResultSet) preparedStatement.executeQuery();
if(!resultSet.next()){
DBConnection.infoBox("Enter Correct Email and Password", "Failed", null);
}else{
try {
Stage stage = (Stage) button.getScene().getWindow();
stage.close();
FXMLLoader fxmlLoader = new FXMLLoader();
if(isAdmin){
fxmlLoader.setLocation(getClass().getResource("ChooseRouteToOpen.fxml"));
}else{
fxmlLoader.setLocation(getClass().getResource("UserTimeSheetsView.fxml"));
}
Scene scene = new Scene(fxmlLoader.load());//next page size
stage.setScene(scene);
stage.show();
} catch (IOException e) {
Logger logger = Logger.getLogger(getClass().getName());
logger.log(Level.SEVERE, "Failed to create new Window.", e);
}
}
}catch(Exception e){
e.printStackTrace();
}
}
#Override
public void initialize(URL url, ResourceBundle rb) {
try {
// TODO
if(DBConnection.getConnection() == null){
label.setText("Status: DATABASE NOT CONNECTED!");
}
else {
label.setText("Status: DATABASE CONNECTED!");
}
} catch (SQLException ex) {
Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.SEVERE, null, ex);
} catch (ClassNotFoundException ex) {
Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.SEVERE, null, ex);
}
;
}
}
This is the error log :
Jan 14, 2018 12:31:04 PM javafx.fxml.FXMLLoader$ValueElement
processValue
WARNING: Loading FXML document with JavaFX API of version 8.0.111 by JavaFX runtime of version 8.0.66
org.sqlite.SQLiteException: [SQLITE_ERROR] SQL error or missing database (no such table: users)
at org.sqlite.core.DB.newSQLException(DB.java:909)
at org.sqlite.core.DB.newSQLException(DB.java:921)
at org.sqlite.core.DB.throwex(DB.java:886)
at org.sqlite.core.NativeDB.prepare_utf8(Native Method)
at org.sqlite.core.NativeDB.prepare(NativeDB.java:127)
at org.sqlite.core.DB.prepare(DB.java:227)
at org.sqlite.core.CorePreparedStatement.<init>(CorePreparedStatement.java:41)
at org.sqlite.jdbc3.JDBC3PreparedStatement.<init>(JDBC3PreparedStatement.java:30)
at org.sqlite.jdbc4.JDBC4PreparedStatement.<init>(JDBC4PreparedStatement.java:19)
at org.sqlite.jdbc4.JDBC4Connection.prepareStatement(JDBC4Connection.java:48)
at org.sqlite.jdbc3.JDBC3Connection.prepareStatement(JDBC3Connection.java:263)
at org.sqlite.jdbc3.JDBC3Connection.prepareStatement(JDBC3Connection.java:235)
at pkg3treka.FXMLDocumentController.handleButtonAction(FXMLDocumentController.java:117)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.reflect.misc.Trampoline.invoke(Unknown Source)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.reflect.misc.MethodUtil.invoke(Unknown Source)
at javafx.fxml.FXMLLoader$MethodHandler.invoke(Unknown Source)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(Unknown Source)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
at com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
at javafx.event.Event.fireEvent(Unknown Source)
at javafx.scene.Node.fireEvent(Unknown Source)
at javafx.scene.control.Button.fire(Unknown Source)
at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(Unknown Source)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(Unknown Source)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(Unknown Source)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(Unknown Source)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
at com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
at javafx.event.Event.fireEvent(Unknown Source)
at javafx.scene.Scene$MouseHandler.process(Unknown Source)
at javafx.scene.Scene$MouseHandler.access$1500(Unknown Source)
at javafx.scene.Scene.impl_processMouseEvent(Unknown Source)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Unknown Source)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(Unknown Source)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(Unknown Source)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(Unknown Source)
at com.sun.glass.ui.View.handleMouseEvent(Unknown Source)
at com.sun.glass.ui.View.notifyMouse(Unknown Source)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(Unknown Source)
at java.lang.Thread.run(Unknown Source)
org.sqlite.SQLiteException: [SQLITE_ERROR] SQL error or missing database (no such table: users)
at org.sqlite.core.DB.newSQLException(DB.java:909)
at org.sqlite.core.DB.newSQLException(DB.java:921)
at org.sqlite.core.DB.throwex(DB.java:886)
at org.sqlite.core.NativeDB.prepare_utf8(Native Method)
at org.sqlite.core.NativeDB.prepare(NativeDB.java:127)
at org.sqlite.core.DB.prepare(DB.java:227)
at org.sqlite.core.CorePreparedStatement.<init>(CorePreparedStatement.java:41)
at org.sqlite.jdbc3.JDBC3PreparedStatement.<init>(JDBC3PreparedStatement.java:30)
at org.sqlite.jdbc4.JDBC4PreparedStatement.<init>(JDBC4PreparedStatement.java:19)
at org.sqlite.jdbc4.JDBC4Connection.prepareStatement(JDBC4Connection.java:48)
at org.sqlite.jdbc3.JDBC3Connection.prepareStatement(JDBC3Connection.java:263)
at org.sqlite.jdbc3.JDBC3Connection.prepareStatement(JDBC3Connection.java:235)
at pkg3treka.FXMLDocumentController.handleButtonAction(FXMLDocumentController.java:117)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.reflect.misc.Trampoline.invoke(Unknown Source)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.reflect.misc.MethodUtil.invoke(Unknown Source)
at javafx.fxml.FXMLLoader$MethodHandler.invoke(Unknown Source)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(Unknown Source)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
at com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
at javafx.event.Event.fireEvent(Unknown Source)
at javafx.scene.Node.fireEvent(Unknown Source)
at javafx.scene.control.Button.fire(Unknown Source)
at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(Unknown Source)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(Unknown Source)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(Unknown Source)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(Unknown Source)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(Unknown Source)
at com.sun.javafx.event.EventUtil.fireEventImpl(Unknown Source)
at com.sun.javafx.event.EventUtil.fireEvent(Unknown Source)
at javafx.event.Event.fireEvent(Unknown Source)
at javafx.scene.Scene$MouseHandler.process(Unknown Source)
at javafx.scene.Scene$MouseHandler.access$1500(Unknown Source)
at javafx.scene.Scene.impl_processMouseEvent(Unknown Source)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Unknown Source)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(Unknown Source)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(Unknown Source)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(Unknown Source)
at com.sun.glass.ui.View.handleMouseEvent(Unknown Source)
at com.sun.glass.ui.View.notifyMouse(Unknown Source)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(Unknown Source)
at java.lang.Thread.run(Unknown Source)
In your FXMLDocumentController.java file at line 117, you are running a query againt a SQL table named "users". This table is missing in your database.
I am learning java. I've tried to access a website and see how many characters are there. A website I tried is:
http://cs.armstrong.edu/liang/data/Lincoln.txt
I get a I/O error: no such file output. but I shouldn't get since the web site is up & running.
package ikinciHaftam;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Scanner;
public class ReadFileFromURL {
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.print("Enter a URL: ");
Scanner inURL = new Scanner(System.in);
String URLString = inURL.next();
inURL.close();
try{
URL url = new URL(URLString);
int count =0;
Scanner input = new Scanner(url.openStream());
System.out.println(url.openStream());
while (input.hasNext()){
String line = input.nextLine();
count += line.length();
}
System.out.println("The file size is " + count + " characters");
input.close();
}
catch(MalformedURLException ex){
System.out.println("Malformed url");
}
catch(IOException e){
e.printStackTrace();
}
}
}
and I get:
java.net.UnknownHostException: cs.armstrong.edu
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.<init>(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at java.net.URL.openStream(Unknown Source)
at ikinciHaftam.ReadFileFromURL.main(ReadFileFromURL.java:18)
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Authenticator;
import java.net.PasswordAuthentication;
import java.net.URL;
public class SaveImageFromUrl {
public static void main(String[] args) throws Exception {
// proxy settings
System.setProperty("http.proxyHost", "porxyHost");
System.setProperty("http.proxyPort", "8080");
Authenticator authenticator = new Authenticator() {
public PasswordAuthentication getPasswordAuthentication() {
return (new PasswordAuthentication("userxyz","password".toCharArray()));
}
};
Authenticator.setDefault(authenticator);
String imageUrl = "https://graph.facebook.com/10000012233xxxx/picture";
String destinationFile = "D://image4.jpg";
saveImage(imageUrl, destinationFile);
}
public static void saveImage(String imageUrl, String destinationFile) throws IOException {
URL url = new URL(imageUrl);
InputStream is = url.openStream();
OutputStream os = new FileOutputStream(destinationFile);
byte[] b = new byte[2048];
int length;
while ((length = is.read(b)) != -1) {
os.write(b, 0, length);
}
is.close();
os.close();
}
}
My code works fine and downloads image for other imageurl paths.But it is not working when I use String imageUrl = "https://graph.facebook.com/10000012233xxxx/picture";
I am getting the following error :
Exception in thread "main" java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.security.ssl.SSLSocketImpl.connect(Unknown Source)
at sun.security.ssl.BaseSSLSocketImpl.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.<init>(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
at java.net.URL.openStream(Unknown Source)
at SaveImageFromUrl.saveImage(SaveImageFromUrl.java:33)
at SaveImageFromUrl.main(SaveImageFromUrl.java:28)
You need to make sure that your application can follow redirects, because Facebook is sending one if you request
/{user_id}/picture
To implement this, have a look at http://www.mkyong.com/java/java-httpurlconnection-follow-redirect-example/
Also, try setting the Proxy authentication like this:
System.setProperty( "http.proxyUserName", "username" );
System.setProperty( "http.proxyPassword", "password" );
I suspect you get the timeout from your proxy connection, but you should be able to test this yourself.
I'm trying to get an image from an url through a proxy:
URL url = new URL("https://www.google.es/images/srpr/logo11w.png"); //Example
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("proxy", 8080)); //Proxy address is http://proxy:8080
URLConnection conexión = url.openConnection(proxy);
conexión.connect();
Image imagen = ImageIO.read(url.openStream());
The problem is at this.imagen = ImageIO.read(url.openStream());:
java.net.ConnectException: Connection timed out: connect
at java.net.TwoStacksPlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.security.ssl.SSLSocketImpl.connect(Unknown Source)
at sun.security.ssl.BaseSSLSocketImpl.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.<init>(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
at java.net.URL.openStream(Unknown Source)
at gui.Ventana.<init>(Ventana.java:34)
at servicio.Servicio2.buscar(Servicio2.java:60)
at data.Main.main(Main.java:20)
I have also tried using the Authenticator class adding Authenticator.setDefault(new Autenticador(username, password));
public class Autenticador extends Authenticator {
private String usuario;
private String password;
public Autenticador(String usuario, String password) {
this.usuario = usuario;
this.password = password;
}
#Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(usuario, password.toCharArray());
}
}
}
And I still get the same error. Any suggestion? Thanks.