[java] java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)

The following code:

Class.forName("com.mysql.jdbc.Driver");
Connection m_connection = DriverManager.getConnection("jdbc:mysql://localhost","root","root");

Throws this exception on getConnection():

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1074)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4074)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4006)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:919)
    at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1694)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1244)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2397)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2430)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2215)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:813)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:334)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at db.Database.<init>(Database.java:91)
    at db.Main.main(Main.java:10)

How is this caused and how can I solve it?

EDIT:

    public static void main(String[] args) throws ClassNotFoundException, ServletException, SQLException 
    {

        try
        {
            Connection conn = (Connection) DriverManager.getConnection("jdbc:mysql://localhost/?user=root&password=rootpassword"); 
            Statement   s = (Statement) conn.createStatement();
            int result = s.executeUpdate("CREATE DATABASE databasename");
        }


        catch ( Exception e)
        {
            e.printStackTrace();
        }
}

Produces :

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1074)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4074)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4006)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:919)
    at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1694)
    at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1244)
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2397)
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2430)
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2215)
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:813)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:334)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at db.Main.main(Main.java:19)

If you are connecting a remote mysql server from your local machine using java see the below steps. Error : "java.sql.SQLException: Access denied for user 'xxxxx'@'101.123.163.141' (using password: YES) "

for remote access may be cpanel or others grant the remote access for your local ip address.

In the above error message: "101.123.163.141" is my local machine ip. So First we have to give remote access in the Cpanel-> Remote MySQL®. Then run your application to connect.

Class.forName("com.mysql.jdbc.Driver");  
Connection con=DriverManager.getConnection(  
    "jdbc:mysql://www.xyz.com/abc","def","ghi");  
//here abc is database name, def is username and ghi        
Statement stmt=con.createStatement();  
ResultSet rs=stmt.executeQuery("select * from employee");  
    while(rs.next())  
        System.out.println(rs.getInt(1)+" "+rs.getString(2)+"  
                          "+rs.getString(3));  
con.close();    

Hope it will resolve your issue.

Thanks

Although this may not be the cause of your issue, you'll get the same error if there are two MySQL services running on the same port. You can check on windows by looking at the list of services in the services tab of Task Manager.

If you are using a MySql workbench, go to the home page of workbench, right click on your database, copy the JDBC connection string, and paste it into the Java program.

I had a similar problem, but the differemce was: I didn't executed my JavaApp from localhost, but from a remote PC. So I got something like java.sql.SQLException: Access denied for user 'root'@'a.remote.ip.adress' (using password: YES) To solve this, you can simply login to phpMyAdmin, go to Users, click add user and enter the host from which you want to execute your JavaApp (or choose Any Host)

The order of declaring:

• Driver
• Connection string
• username
• password

If we declaring in order

• Connection string
• username
• password
• Driver

the application will fail

I also have this problem, this solved it.

Change the:

Sring url = "jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC&user=root&password=password";

Set:

"serverTimezone=UTC" is "Unified standard world time". "useUnicode=true&characterEncoding=UTF-8" is "Solve Chinese garbled".

Although my database have not any Chinese words. But it is working. Reference from https://www.cnblogs.com/EasonJim/p/6906713.html

I encountered this error. The problem was that I had the wrong database name.

When I'm running a springboot project, the application.yml configuration is like this:

server:
  port: 8080
spring:
  datasource:
    url: jdbc:mysql://localhost:3306/lof?serverTimezone=GMT
    username: root
    password: root
    driver-class-name: com.mysql.cj.jdbc.Driver

Notice that there isn't quotation marks around the password. And I can run this project in my windows System.

But when I try to deploy to the server, I have the problem and I fix it by changing the application.yml to:

server:
  port: 8080
spring:
  datasource:
    url: jdbc:mysql://localhost:3306/lof?serverTimezone=GMT
    username: root
    password: "root"
    driver-class-name: com.mysql.cj.jdbc.Driver

This resolved issue for me.

ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'password';

GRANT ALL PRIVILEGES ON *.cfe TO 'root'@'%' IDENTIFIED BY 'password';

FLUSH PRIVILEGES;

Add port number (something like 3306) in:

Connection c = DriverManager.getConnection("jdbc:mysql://localhost:urport","root","root");

I was also facing the same issue, My connection string is valid and username and password also valid, even user has sufficient privileges to access database.

I solved this issue by deleting temporary folder created by MySQL(Please take backup before deleting any folders so in case if it not works then you can place that files again).

Default folder location for temp and connection files of MySQL in Windows is:

C:\ProgramData\MySQL

I deleted(taken backup) of below folder:

C:\ProgramData\MySQL\MySQL Server \Data\sys

Note: Before deleting any items make sure that MySQL service is not started or else it would not allow to delete any files

And It works for me.

For me the solution worked as by changing the url format to: con=DriverManager.getConnection("jdbc:mysql://localhost/w3schools?user=###&password=###"); make sure to add proper jar to class path and use the driver Class.forName("com.mysql.jdbc.Driver");

you can use this

   static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";  
   static final String DB_URL = "jdbc:mysql://localhost:3306/YOUR_DB_NAME";


   static final String USER = "root";
   static final String PASS = "YOUR_ROOT_PASSWORD"; 

  Connection conn = DriverManager.getConnection(DB_URL,USER,PASS);

you have to give the right root password .

I am using Spring Boot 2.2.6(Windows) and faced the same issue when I tried the run the application: java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)

What solved my problem:

1. Create a new user (from the MySQL workbench or a similar GUI which you might be using)
2. Grant DBA priviledges (Tick the DBA checkbox) also from the GUI
3. Run the spring boot application.

Or follow the @evg solution to grant privilegdes from command line in Linux env.

I was hitting the same issue. Added mysql service port number(3307), resolved the issue.

conn = DriverManager.getConnection("jdbc:mysql://localhost:3307/?" + "user=root&password=password");

Try it like this....

public static Connection getConnection() throws SQLException{

    String driver = "com.mysql.jdbc.Driver";
    String url    = "jdbc:mysql://localhost:3306/test";
    String username = "root";
    String password = "vicky";            // Change it to your Password
    System.setProperty(driver,"");

    return DriverManager.getConnection(url,username,password);
}

I had to change my SQL setup (in my host, Dreamhost in my case) to allow the username to access the database from other hosts, not just Dreamhost since I'm running a program from the IDE on my computer. I did that for now by adding % to the list of Allowable Hosts. It now works!

This appears to mostly happens when the MySQL username and password are not correct. Check your MySQL username and password.

This is specific to Ubuntu 18.04 LTS and MySQL 5.x Followed this link Follow everything from here onwards:

sudo mysql_secure_installation

sudo mysql

Once logged into MySQL then from the MySQL prompt execute these commands:

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
FLUSH PRIVILEGES;

Now verify that the table has the password for the root

SELECT user,authentication_string,plugin,host FROM mysql.user;

This solved my issue and now i am able to login.

I had the same issue like below

"java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)". Problem was "WRONG PASSWORD". 

Copy and paste the query as-it-is in the shell to check whether it gives the desired output or not. Small errors consumes more time.

This can help you:

GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY '%password%' WITH GRANT OPTION;

Execute it with command line or some GUI tool.

Don't forget to replace %password% with real password.

This Exception is also caused due to version mismatch of mysql db and your pom.xml/jar.

Make sure your pom.xml/jar version is higher than your mysql db version. Because higher versions are compatible with lower version's, but the same is not true for the inverse.

Solution's for java project

• Replace the Jar with suitable version.

Solution for maven based

• Change the dependency Version in pom.xml

Solution for spring boot - Override the spring boot dependency by adding 5.1.5.Final

You should specify the db you are connecting to:

jdbc:mysql://localhost:3306/mydb

My application.properties looked something like this

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/mydb

spring.datasource.username=root

spring.datasource.password=root

The only thing worked for me is to maven clean and then maven install.

1. use correct jar (with correct version)
2. give root user host-independent access or create a user