How to import MySQL using Gradle and connect into JavaFX - mysql

Question

I'm using IntelliJ IDEA and JavaFX 10 for my practice learning. I want to connect MySQL and import it using Gradle.
I found multiple example in internet but I din't found any latest, most of the function is already depreciated and reading so much different example makes me confused.

Answer 1

You may want to read first the official documentation instead of reading multiple example.
I assume that you are beginner.
1.) First thing to do is to Download the MySQL Installer to intall the Server into your machine. Remember that things won't work without this.
During the installation you will need to set your Server PORT, root password or add a new user, just remember the Server PORT and root Password and leave things in default.
2.) Go to Maven Central. We need to import the MySQL Connector. In order to import the MySQL Connector into Gradle we need to get the correct group, name and version for it.
You notice that in Maven Central there are multiple selection on how you can import the jar into your project, this time we want to import it using Gradle,
so you have to choose the Gradle and copy the code: compile group: 'mysql', name: 'mysql-connector-java', version: '8.0.11'
NOTE - In order to avoid problems, just always choose and use the latest version of MySQL Installer and MySQL Connector, at the moment the latest version is 8.0.11.
3.) In IntelliJ IDEA, in order to import in Gradle, in your project there is build.gradle click it to open then paste the code you copied in dependencies.
it should look like:
dependencies {
testCompile group: 'junit', name: 'junit', version: '4.12'
compile group: 'mysql', name: 'mysql-connector-java', version: '8.0.11'
}
4.) Create a class where you want to connect into MySQL, the below code is my example.
Main.Class
import java.lang.reflect.InvocationTargetException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class Main {
public static void main(String[] args){
Connection conn = null;
String user = "whatEverUserNameYouSetup";
String password = "whatEverPasswordYouSetup";
String database = "whatEverTheNameOfYourDatabase";
int port = 3306; //default port, change it depending on your setup
try {
Class.forName("com.mysql.cj.jdbc.Driver").getConstructor().newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:" + port + "/" + database, user, password);
// Do something with the Connection
} catch (SQLException ex) {
// handle any errors
System.out.println("SQLException: " + ex.getMessage());
System.out.println("SQLState: " + ex.getSQLState());
System.out.println("VendorError: " + ex.getErrorCode());
}catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
}
NOTE: The documentation is your friend.
UPDATE: If you run on error something like
Wed Dec 09 22:46:52 CET 2015 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
then you need to set useSSL to false, the code will be look like:
import java.lang.reflect.InvocationTargetException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
public class Main {
public static void main(String[] args){
Connection conn = null;
Properties properties = new Properties(); //I use Properties to make things easer.
properties.setProperty("user", "root");
properties.setProperty("password", "YourPassword");
properties.setProperty("useSSL", "false"); //Set useSSL to false to solve the problem.
try {
Class.forName("com.mysql.cj.jdbc.Driver").getConstructor().newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306", properties);
// Do something with the Connection
} catch (SQLException ex) {
// handle any errors
System.out.println("SQLException: " + ex.getMessage());
System.out.println("SQLState: " + ex.getSQLState());
System.out.println("VendorError: " + ex.getErrorCode());
}catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
}