MySQL Connector returning “Communication Link Failure”Solving a “communications link failure” with JDBC and MySQLHow to avoid SQLException?How to insert a line in my DB using those lines of command, and it doesnt workException in thread “AWT-EventQueue-0” Java Errorhow to run executable via processBuilder?NullPointerException with ComboBoxjpl library won't work with java maven projecthow to resolve the NullPointerException error in the following code? Throws error for setting text int TextFieldapache POI java.lang.NoClassDefFoundError: org/apache/commons/compress/archivers/zip/ZipFileError in display database and calculate the salary in Java AWTHaving a Null pointer exception while coding my first GUI and I can't figure out where it's going wrong
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MySQL Connector returning “Communication Link Failure”
Solving a “communications link failure” with JDBC and MySQLHow to avoid SQLException?How to insert a line in my DB using those lines of command, and it doesnt workException in thread “AWT-EventQueue-0” Java Errorhow to run executable via processBuilder?NullPointerException with ComboBoxjpl library won't work with java maven projecthow to resolve the NullPointerException error in the following code? Throws error for setting text int TextFieldapache POI java.lang.NoClassDefFoundError: org/apache/commons/compress/archivers/zip/ZipFileError in display database and calculate the salary in Java AWTHaving a Null pointer exception while coding my first GUI and I can't figure out where it's going wrong
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1
I have been trying to connect my program to a non localhost database since it will be used on other computer but I keep getting a Communications Link Failure.
This is the Error I'm getting:
Communications link failure
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at ContactList.SignUp.jLabelCreateMouseClicked(SignUp.java:456)
at ContactList.SignUp.access$1300(SignUp.java:16)
at ContactList.SignUp$8.mouseClicked(SignUp.java:164)
at java.awt.Component.processMouseEvent(Component.java:6536)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6298)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4534)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
The code works completely fine when I use localhost with XAMPP. Could it be a restriction by OVH or some setting in MySQL.
The MySQL is on Linux Ubuntu VPS.
Here is the code for the connection.
import java.sql.Connection;
import java.sql.DriverManager;
public class myConnection
// Init Database Constants
private static final String DATABASE_DRIVER = "com.mysql.jdbc.Driver";
private static final String DATABASE_URL = "jdbc:mysql://54.39.145.0:3306/contact";
private static final String USERNAME = "turtle";
private static final String PASSWORD = "ILikeTurtles321!";
private static final String MAX_POOL = "250";
// Init Connection Object
private Connection con;
// Connect Database
public static Connection getConnection()
Connection con = null;
try
Class.forName(DATABASE_DRIVER);
con = DriverManager.getConnection(DATABASE_URL, USERNAME, PASSWORD);
catch (Exception ex)
System.out.println(ex.getMessage());
return con;
java mysql netbeans phpmyadmin connector
asked Mar 26 at 0:13
JustStanixJustStanix
63 bronze badges
add a comment |
1
I have been trying to connect my program to a non localhost database since it will be used on other computer but I keep getting a Communications Link Failure.
This is the Error I'm getting:
Communications link failure
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at ContactList.SignUp.jLabelCreateMouseClicked(SignUp.java:456)
at ContactList.SignUp.access$1300(SignUp.java:16)
at ContactList.SignUp$8.mouseClicked(SignUp.java:164)
at java.awt.Component.processMouseEvent(Component.java:6536)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6298)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4534)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
The code works completely fine when I use localhost with XAMPP. Could it be a restriction by OVH or some setting in MySQL.
The MySQL is on Linux Ubuntu VPS.
Here is the code for the connection.
import java.sql.Connection;
import java.sql.DriverManager;
public class myConnection
// Init Database Constants
private static final String DATABASE_DRIVER = "com.mysql.jdbc.Driver";
private static final String DATABASE_URL = "jdbc:mysql://54.39.145.0:3306/contact";
private static final String USERNAME = "turtle";
private static final String PASSWORD = "ILikeTurtles321!";
private static final String MAX_POOL = "250";
// Init Connection Object
private Connection con;
// Connect Database
public static Connection getConnection()
Connection con = null;
try
Class.forName(DATABASE_DRIVER);
con = DriverManager.getConnection(DATABASE_URL, USERNAME, PASSWORD);
catch (Exception ex)
System.out.println(ex.getMessage());
return con;
java mysql netbeans phpmyadmin connector
asked Mar 26 at 0:13
JustStanixJustStanix
63 bronze badges
Have you read this? stackoverflow.com/questions/6865538/…
– Fellipe Sanches
Mar 26 at 0:17
Yes I have read that.
– JustStanix
Mar 26 at 0:28
What version of MySQL is running, and what version of the driver (Connector/J? ) are you using?
– skomisa
Mar 26 at 3:27
add a comment |
1
1
1
I have been trying to connect my program to a non localhost database since it will be used on other computer but I keep getting a Communications Link Failure.
This is the Error I'm getting:
Communications link failure
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at ContactList.SignUp.jLabelCreateMouseClicked(SignUp.java:456)
at ContactList.SignUp.access$1300(SignUp.java:16)
at ContactList.SignUp$8.mouseClicked(SignUp.java:164)
at java.awt.Component.processMouseEvent(Component.java:6536)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6298)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4534)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
The code works completely fine when I use localhost with XAMPP. Could it be a restriction by OVH or some setting in MySQL.
The MySQL is on Linux Ubuntu VPS.
Here is the code for the connection.
import java.sql.Connection;
import java.sql.DriverManager;
public class myConnection
// Init Database Constants
private static final String DATABASE_DRIVER = "com.mysql.jdbc.Driver";
private static final String DATABASE_URL = "jdbc:mysql://54.39.145.0:3306/contact";
private static final String USERNAME = "turtle";
private static final String PASSWORD = "ILikeTurtles321!";
private static final String MAX_POOL = "250";
// Init Connection Object
private Connection con;
// Connect Database
public static Connection getConnection()
Connection con = null;
try
Class.forName(DATABASE_DRIVER);
con = DriverManager.getConnection(DATABASE_URL, USERNAME, PASSWORD);
catch (Exception ex)
System.out.println(ex.getMessage());
return con;
java mysql netbeans phpmyadmin connector
asked Mar 26 at 0:13
JustStanixJustStanix
63 bronze badges
I have been trying to connect my program to a non localhost database since it will be used on other computer but I keep getting a Communications Link Failure.
This is the Error I'm getting:
Communications link failure
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at ContactList.SignUp.jLabelCreateMouseClicked(SignUp.java:456)
at ContactList.SignUp.access$1300(SignUp.java:16)
at ContactList.SignUp$8.mouseClicked(SignUp.java:164)
at java.awt.Component.processMouseEvent(Component.java:6536)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6298)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4534)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
The code works completely fine when I use localhost with XAMPP. Could it be a restriction by OVH or some setting in MySQL.
The MySQL is on Linux Ubuntu VPS.
Here is the code for the connection.
import java.sql.Connection;
import java.sql.DriverManager;
public class myConnection
// Init Database Constants
private static final String DATABASE_DRIVER = "com.mysql.jdbc.Driver";
private static final String DATABASE_URL = "jdbc:mysql://54.39.145.0:3306/contact";
private static final String USERNAME = "turtle";
private static final String PASSWORD = "ILikeTurtles321!";
private static final String MAX_POOL = "250";
// Init Connection Object
private Connection con;
// Connect Database
public static Connection getConnection()
Connection con = null;
try
Class.forName(DATABASE_DRIVER);
con = DriverManager.getConnection(DATABASE_URL, USERNAME, PASSWORD);
catch (Exception ex)
System.out.println(ex.getMessage());
return con;
java mysql netbeans phpmyadmin connector
java mysql netbeans phpmyadmin connector
asked Mar 26 at 0:13
JustStanixJustStanix
63 bronze badges
asked Mar 26 at 0:13
JustStanixJustStanix
63 bronze badges
asked Mar 26 at 0:13
JustStanixJustStanix
63 bronze badges
asked Mar 26 at 0:13
JustStanixJustStanix
63 bronze badges
asked Mar 26 at 0:13
JustStanixJustStanix
63 bronze badges
63 bronze badges
Have you read this? stackoverflow.com/questions/6865538/…
– Fellipe Sanches
Mar 26 at 0:17
Yes I have read that.
– JustStanix
Mar 26 at 0:28
What version of MySQL is running, and what version of the driver (Connector/J? ) are you using?
– skomisa
Mar 26 at 3:27
add a comment |
Have you read this? stackoverflow.com/questions/6865538/…
– Fellipe Sanches
Mar 26 at 0:17
Yes I have read that.
– JustStanix
Mar 26 at 0:28
What version of MySQL is running, and what version of the driver (Connector/J? ) are you using?
– skomisa
Mar 26 at 3:27
Have you read this? stackoverflow.com/questions/6865538/…
– Fellipe Sanches
Mar 26 at 0:17
Have you read this? stackoverflow.com/questions/6865538/…
– Fellipe Sanches
Mar 26 at 0:17
Yes I have read that.
– JustStanix
Mar 26 at 0:28
Yes I have read that.
– JustStanix
Mar 26 at 0:28
What version of MySQL is running, and what version of the driver (Connector/J? ) are you using?
– skomisa
Mar 26 at 3:27
What version of MySQL is running, and what version of the driver (Connector/J? ) are you using?
– skomisa
Mar 26 at 3:27
add a comment |
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Have you read this? stackoverflow.com/questions/6865538/…
– Fellipe Sanches
Mar 26 at 0:17
Yes I have read that.
– JustStanix
Mar 26 at 0:28
What version of MySQL is running, and what version of the driver (Connector/J? ) are you using?
– skomisa
Mar 26 at 3:27