![]() Now it is possible to connect to this database and table from NetBeans, operate on it, and make any other actions.įinally moving to the IDE, go to the Services tab, right click on ‘Databases’ and select ‘Register MySQL Server’. In the Workbench it is possible to do this using either through the interface or by writing queries like these below: For this project, the database ‘feedback’ has been created, along with the table ‘project’. When connection is activated, it is possible to create a database in it. The default name is ‘root’ and the password is empty (for this example I have set the password to be ‘admin’). MySQL configuration includes setting up a username and password. Once this is done it is possible to configure MySQL and create programs using a MySQL connection. Click ‘New’, and add the following variables with the parameters: Go to Computer -> Properties -> Advanced system settings -> Environment variables. (If this is not done, an error may occur.) This is vitally important in order to be able to use it when writing a Java program.ĭefault paths to locate the connector are:Īlso, it is necessary to add the location of the connector to CLASSPATH and add some other system variables. (It should have a name of ‘mysql-connector-java-x.x.x.jar’, where ‘x.x.x’ stands for the version of connector.)įirst, it is necessary to add this connector to the folders where current JDK and JRE are located. jar file from it, which is actually a connector. MySQL Connector/J comes in an archive, so it is necessary to extract the. ![]() ![]() ![]() In this tutorial we are going to discuss how to connect a MySQL database to NetBeans IDE to work with it using Java.įirst of all, the following components are required to be downloaded and installed: I have looked at other questions, notably this one:ĬlassCastException: cannot be cast to on connect to MySQLīut, doing this resulted in the same ': : cannot be cast to ' error.įurthermore, I seem to be able to connect to my database driver just fine, but when attempting to connect to the MySQL server, it displays an error message with the same error yet again.When learning any programming language, at some point it may be necessary to extend your skills and knowledge by learning databases and connecting one to the IDE. I am using Java NetBeans IDE 8.2 and using MySQL Connector Java 8.0.18. I always seem to get this error no matter what I try: : : cannot be cast to Īt .createSQLException(SQLError.java:1074)Īt .createSQLException(SQLError.java:988)Īt .createSQLException(SQLError.java:974)Īt .createSQLException(SQLError.java:919)Īt .buildCollationMapping(ConnectionImpl.java:1062)Īt .initializePropsFromServer(ConnectionImpl.java:3556)Īt .connectOneTryOnly(ConnectionImpl.java:2513)Īt .createNewIO(ConnectionImpl.java:2283)Īt .(ConnectionImpl.java:822)Īt 4Connection.(JDBC4Connection.java:47)Īt 0(Native Method)Īt (NativeConstructorAccessorImpl.java:62)Īt (DelegatingConstructorAccessorImpl.java:45)Īt .newInstance(Constructor.java:423)Īt .handleNewInstance(Util.java:411)Īt .getInstance(ConnectionImpl.java:404)Īt .connect(NonRegisteringDriver.java:317)Īt (DriverManager.java:664)Īt (DriverManager.java:247) When attempting to do this in my code: Class.forName("") Ĭonnection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/MazeJumperLeaderboardDB", "root", "password")
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