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java.lang.ClassNotFoundException: com.mysql.jdbc.Driver error in Java 10

Recently I wrote this code for connecting to MySQL in Eclipse, I am using Java 10 but I run this code I found. I add a sql.connector.jar file also into my class path but still same error:
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
Code:
package ExamplePackage;
import java.sql.*;
import java.util.*;
public class ConnectionManager {
static Connection con;
static String url;
public static Connection getConnection()
{
try
{
String url = "jdbc:mysql://localhost:3306/new_schema.student";
// assuming "DataSource" is your DataSource name
//String connectionUrl = "jdbc:sqlserver://DESKTOP-05S6KIJ;databaseName=users;";
Class.forName("com.mysql.jdbc.Driver");
try
{
con = DriverManager.getConnection(url,"Shaik","Shaik#786");
// assuming your SQL Server's username is "username"
// and password is "password"
}
catch (SQLException ex)
{
ex.printStackTrace();
}
}
catch(Exception e)
{
System.out.println(e);
}
return con;
}
}

I think the issue is not in your project code, you need to add the com.mysql.jdb*.jar driver in your project.
The Class.forName("com.mysql.jdbc.Driver"); is trying to load the driver that is not found -> java.lang.ClassNotFoundException: com.mysql.jdbc.Driver .

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver - Not Working [duplicate]

This question already has answers here:
runtime error: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
(6 answers)
Closed 9 years ago.
I'm trying to run this program
import java.sql.*;
import java.io.*;
public class FirstExample
{
// JDBC driver name and database URL
static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
static final String DB_URL = "jdbc:mysql://localhost/EMP";
// Database credentials
static final String USER = "root";
static final String PASS = "pass";
public static void main(String[] args)
{
Connection conn = null;
Statement stmt = null;
try
{
//STEP 2: Register JDBC driver
Class.forName("com.mysql.jdbc.Driver");
//STEP 3: Open a connection
System.out.println("Connecting to database...");
conn = DriverManager.getConnection(DB_URL,USER,PASS);
//STEP 4: Execute a query
System.out.println("Creating statement...");
stmt = conn.createStatement();
String sql;
sql = "SELECT title,duration,protocol,URL,thumbURL,favorite FROM Videos";
ResultSet rs = stmt.executeQuery(sql);
//STEP 5: Extract data from result set
while(rs.next())
{
//Retrieve by column name
String title = rs.getString("title");
String duration = rs.getString("duration");
String protocol = rs.getString("protocol");
String URL = rs.getString("URL");
String thumbURL = rs.getString("thumbURL");
String favorite = rs.getString("favorite");
//Display
System.out.println("Title:" + title);
System.out.println("Duration:" + duration);
System.out.println("Protocol:" + protocol);
System.out.println("URL:" + URL);
System.out.println("ThumbURL:" + thumbURL);
System.out.println("Favorite:" + favorite);
}
//STEP 6: Clean-up environment
rs.close();
stmt.close();
conn.close();
}
catch(SQLException se)
{
//Handle errors for JDBC
se.printStackTrace();
}
catch(Exception e)
{
//Handle errors for Class.forName
e.printStackTrace();
}
finally
{
//finally block used to close resources
try
{
if(stmt!=null)
stmt.close();
}
catch(SQLException se2)
{
}// nothing we can do
try
{
if(conn!=null)
conn.close();
}
catch(SQLException se)
{
se.printStackTrace();
}//end finally try
}
System.out.println("Goodbye!");
}
}
But I'm getting the ClassNotFoundException
D:\XML Tests>javac FirstExample.java
D:\XML Tests>java FirstExample
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at FirstExample.main(FirstExample.java:21)
Goodbye!
Having consulted the numerous question available i.e setting the PATH system variable to the Connector directory, it still isnt working.
Any help please?

Add the jar containing the mysql driver class com.mysql.jdbc.Driver in the classpath.

Add MySQL driver jar to your project classpath and done.

The error is trying to tell you that it's not able to find the com.mysql.jdbc.Driver which is required when you are using MySql for data storage. So What you need to do is download the JConnector. And then import that jar file into your project classpath. Then you will not get the error.

How to remove this exception while making jdbc example ?

I am creating a simple example of jdbc .I am getting this error .I run my sql server on my mac machine .can you please tell me how to make connection with my sql and remove this error .I already include connector jar file .
Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1129)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:358)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2489)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:207)
at HelloWorldExample.main(HelloWorldExample.java:17)
Caused by: java.net.UnknownHostException: local
at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:877)
at java.net.InetAddress.getAddressFromNameService(InetAddress.java:1230)
at java.net.InetAddress.getAllByName0(InetAddress.java:1181)
at java.net.InetAddress.getAllByName(InetAddress.java:1111)
at java.net.InetAddress.getAllByName(InetAddress.java:1047)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:248)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:308)
... 15 more
Here is my code ..I am using mac
import java.sql.*;
/**
* HelloWorldExample : JDBC Tutorial that creates a simple database, stores in a single row
* and retrieves the data to then be displayed on standard out. The database is cleaned up
* to reduce clutter for this example.
* Author: Kevin Hooks
* Date: April 18th, 2012
**/
public class HelloWorldExample {
public static void main(String[] args) throws SQLException{
// Note that you can use TCP/IP by using this URL
// "jdbc:raima:rdm://localhost"
// The rdmsqlserver must be running to use TCP/IP
Connection Conn = DriverManager.getConnection("jdbc:mysql://local");
try {
Statement Stmt = Conn.createStatement();
try {
try { //Since the database is created here, it cannot be created twice
Stmt.execute("DROP DATABASE hello_db");
} catch (SQLException exception) {}
Stmt.execute("CREATE DATABASE hello_Db");
Stmt.execute("CREATE TABLE hello_table (f00 char(31))");
Conn.commit();
PreparedStatement PrepStmt = Conn.prepareStatement("INSERT INTO hello_table (f00) VALUES (?)");
try { //Sets parameter value to a string
PrepStmt.setString(1, "Hello World!");
PrepStmt.execute();
Conn.commit();
ResultSet RS = Stmt.executeQuery("SELECT * FROM hello_table");
try {
while(RS.next() != false) {
System.out.println(RS.getString(1));
}
} finally {
RS.close();
}
} finally { //Cleans up by dropping database in this case
Stmt.execute("DROP DATABASE hello_db");
PrepStmt.close();
}
} finally {
Stmt.close();
}
} catch (SQLException exception) {
System.err.println("SQLException: " + exception.toString());
}finally {
Conn.close();
}
}
}

The hostname of the loopback address is localhost, not local.

Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at HelloWorldExample.main(HelloWorldExample.java:17)
Line 17:
Connection Conn = DriverManager.getConnection("jdbc:mysql://local");
Your program can not establish a connection to the database, be sure that you have your connection URL correct.
local, should be replaced by localhost, or 127.0.0.1
You should also note, that you never actually select a database to use.

you have declared wrong connection string. please modified it according to below rule
Connection Conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/database_name");

your URL should be localhost then add the database name
have a look at this
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.SQLException;
public class JDBCExample {
public static void main(String[] argv) {
System.out.println("-------- MySQL JDBC Connection Testing ------------");
try {
Class.forName("com.mysql.jdbc.Driver");
} catch (ClassNotFoundException e) {
System.out.println("Where is your MySQL JDBC Driver?");
e.printStackTrace();
return;
}
System.out.println("MySQL JDBC Driver Registered!");
Connection connection = null;
try {
connection = DriverManager
.getConnection("jdbc:mysql://localhost:3306/mkyongcom","root", "password");
} catch (SQLException e) {
System.out.println("Connection Failed! Check output console");
e.printStackTrace();
return;
}
if (connection != null) {
System.out.println("You made it, take control your database now!");
} else {
System.out.println("Failed to make connection!");
}
}
}

class not found exception even after everything seems right

I am working on simple connection between Java and MySQL using MySQL Connector J on Windows 8.
Below is the code that i am trying to execute:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;
public class Version {
public static void main(String[] args) {
Connection con = null;
Statement st = null;
ResultSet rs = null;
String url = "jdbc:mysql://localhost:3306/test";
String user = "testuser";
String password = "test623";
try {
con = DriverManager.getConnection(url, user, password);
st = con.createStatement();
rs = st.executeQuery("SELECT VERSION()");
if (rs.next()) {
System.out.println(rs.getString(1));
}
} catch (SQLException ex) {
Logger lgr = Logger.getLogger(Version.class.getName());
lgr.log(Level.SEVERE, ex.getMessage(), ex);
} finally {
try {
if (rs != null) {
rs.close();
}
if (st != null) {
st.close();
}
if (con != null) {
con.close();
}
} catch (SQLException ex) {
Logger lgr = Logger.getLogger(Version.class.getName());
lgr.log(Level.WARNING, ex.getMessage(), ex);
}
}
}
}
Compile:
javac Version.java (goes without error and generates class file)
Execute:
java -cp "path to mysql connector java jar file" Version
Execution Result:
Exception in thread "main" java.lang.NoClassDefFoundError: Version
Caused by: java.lang.ClassNotFoundException: Version
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: Version. Program will exit.
Any idea where am i wrong?

You have to add the directory containing Version.class to the classpath as well as the mysql-connector-jar.
If you don't add a classpath-parameter to the invokation java will look for class-files in the current directory by default. If you add a classpath, java will only search the mentioned jar-files/directories for class files, current directory has to be explicitly included as .

how to install JDBC and how to use it to connect to mysql?

i am trying to install JDBC but i dont know how, when you only have the jar file, i copied it to my java ext folder but it keep giving me an error, can anyone show me how to complete install the driver and use it?
below is the codes that i used
import java.sql.*;
public class Test1
{
public static void main (String[] args)
{
String url = "jdbc:mysql://localhost:3306/sabayafr_sabmah";
String username = "root";
String password = "ma";
Connection connection = null;
try {
System.out.println("Connecting database...");
connection = DriverManager.getConnection(url, username, password);
System.out.println("Database connected!");
} catch (SQLException e) {
System.err.println("Cannot connect the database!");
e.printStackTrace();
} finally {
System.out.println("Closing the connection.");
if (connection != null) {
try {
connection.close();
} catch (SQLException ignore) {
}
}
}
}
}
And below is the Response that i get
Cannot connect to database server
Update # 3
C:\Users\AlAsad\Desktop>java -cp .;mysql-connector-java-5.0.8-bin.jar Test1
Connecting database...
Cannot connect the database!
java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/
sabayafr_sabmah
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at Test1.main(Test1.java:12)
Closing the connection.

You're trying to connect MySQL with the URL of a jTDS JDBC driver which is designed specifically for Microsoft SQL Server. This ain't ever going to work. Even not when you fix the current problem by placing the JAR file in classpath.
You really need the MySQL JDBC driver. Also see this answer for a short but complete tutorial

On the other hand, if you are using an IDE such as Netbeans or Eclipse you can add the jar file as a resource to the project.

You certainly have JDBC problems, but the exception isn't telling you that. Read it again:
Exception in thread "main" java.lang.NoClassDefFoundError: Test1
Caused by: java.lang.ClassNotFoundException: Test1
It's your Test1.class that it can't find, not the JDBC driver.
You should not be copying anything into the jre/lib/ext directory. That's for library extensions, not JDBC JARs. It wasn't meant as a crutch for people who don't understand how CLASSPATH works.
I'd write it more like the following. Those close methods will come in handy.
When I run it on my machine, adding the MySQL JDBC JAR to my CLASSPATH, I get the following result:
C:\java -classpath .\mysql-connector-java-5.1.6-bin.jar; persistence.utils.DatabaseUtils
product: MySQL
version: 5.1.24-rc-community
major : 5
minor : 1
Here is the source code:
package persistence.utils;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class DatabaseUtils
{
public static final String DRIVER = "com.mysql.jdbc.Driver";
public static final String URL = "jdbc:mysql://localhost:3306/contacts";
public static final String USERNAME = "contacts";
public static final String PASSWORD = "contacts";
public static void main(String[] args)
{
Connection connection = null;
try
{
String driver = ((args.length > 0) ? args[0] : DRIVER);
String url = ((args.length > 1) ? args[1] : URL);
String username = ((args.length > 2) ? args[2] : USERNAME);
String password = ((args.length > 3) ? args[3] : PASSWORD);
connection = getConnection(driver, url, username, password);
DatabaseMetaData metaData = connection.getMetaData();
System.out.println("product: " + metaData.getDatabaseProductName());
System.out.println("version: " + metaData.getDatabaseProductVersion());
System.out.println("major : " + metaData.getDatabaseMajorVersion());
System.out.println("minor : " + metaData.getDatabaseMinorVersion());
}
catch (Exception e)
{
e.printStackTrace();
}
finally
{
close(connection);
}
}
public static Connection getConnection(String driver, String url, String username, String password) throws ClassNotFoundException, SQLException
{
Connection connection = null;
Class.forName(driver);
connection = DriverManager.getConnection(url, username, password);
return connection;
}
public static void close(Connection connection)
{
try
{
if (connection != null)
{
connection.close();
}
}
catch (SQLException e)
{
e.printStackTrace();
}
}
public static void close(Statement statement)
{
try
{
if (statement != null)
{
statement.close();
}
}
catch (SQLException e)
{
e.printStackTrace();
}
}
public static void close(ResultSet resultSet)
{
try
{
if (resultSet != null)
{
resultSet.close();
}
}
catch (SQLException e)
{
e.printStackTrace();
}
}
public static void rollback(Connection connection)
{
try
{
if (connection != null)
{
connection.rollback();
}
}
catch (SQLException e)
{
e.printStackTrace();
}
}
}

'I am trying to install JDBC'
You don't have to install JDBC. It is part of the JDK & JRE.

Try putting your .jar file in the classpath.

The library that contains the Driver (net.sourceforge.jtds.jdbc.Driver) needs to be on the classpath.
Assuming you start your application with
java Test1
then simply do
java -cp .;driver.jar Test1
where 'driver.jar' should be exchanged with the filename (relative or full path) of your database driver lib.
EDIT
A classpath tutorial will exceed the comments section below this question. Please take a cup of coffee and look at this page. It will most likely help you to continue.