boa noite pessoal, estou com um probleminha no meu banco de dados.
Ele da o seguinte erro.
O que seria este problema.
Obrigado
Exception in thread “main” java.sql.SQLException: Access denied for user ‘root’@‘localhost’ (using password: NO)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:946)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2985)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:885)
at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3421)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1247)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2748)
at com.mysql.jdbc.Connection.(Connection.java:1553)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285)
at java.sql.DriverManager.getConnection(DriverManager.java:525)
at java.sql.DriverManager.getConnection(DriverManager.java:171)
at br.com.caelum.jdbc.ConnectionFactory.getConnection(ConnectionFactory.java:12)
at br.com.caelum.jdbc.jdbc.dao.ContatoDAO.ContatoDAO.(ContatoDAO.java:15)
at br.com.caelum.jdbc.TestaInsere.main(TestaInsere.java:17)