Erro quando muda de micro

public class ConnectionFactory {
	private static final String url = "jdbc:mysql://localhost/tct";
	private static final String driver = "com.mysql.jdbc.Driver";
	private static final String usuario = "usuario";
	private static final String senha = "senha";
	
	public static Connection getConnection() throws SQLException {
		try {
			Class.forName(driver);
			System.out.println("Conectando ao banco");
			return DriverManager.getConnection(url, usuario, senha);
		} catch (ClassNotFoundException e) {
			throw new SQLException(e.getMessage());
		}
	}
}

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: null,  message from server: "Host 'localhost.localdomain' is not allowed to connect to this MySQL server"
	org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:516)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:423)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
	org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

java.sql.SQLException: null,  message from server: "Host 'localhost.localdomain' is not allowed to connect to this MySQL server"
	com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1023)
	com.mysql.jdbc.Connection.createNewIO(Connection.java:1699)
	com.mysql.jdbc.Connection.<init>(Connection.java:408)
	com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:270)
	java.sql.DriverManager.getConnection(DriverManager.java:525)
	java.sql.DriverManager.getConnection(DriverManager.java:171)
	br.com.unimedsudoestemg.jdbc.ConnectionFactory.getConnection(ConnectionFactory.java:15)
	br.com.unimedsudoestemg.jdbc.dao.ContatoDAO.<init>(ContatoDAO.java:24)
	br.com.unimedsudoestemg.struts.action.ListaContatosNome.execute(ListaContatosNome.java:21)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
	org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

public class ListaContatosNome extends Action {

	@Override
	public ActionForward execute(ActionMapping map, ActionForm form,
			HttpServletRequest request, HttpServletResponse res)
			throws Exception {
		String nome = request.getParameter("nome");
		request.setAttribute("listaDeContatos", new ContatoDAO()
				.getListaNome(nome));
		return map.findForward("ok");
	}

}

public class ContatoDAO {

	// a conexão com o banco de dados
	private Connection connection;

	// construtor que recebe a conexão
	public ContatoDAO(Connection con) {
		this.connection = con;
	}

	public ContatoDAO() throws SQLException {
		this.connection = ConnectionFactory.getConnection();
	}

	public void adiciona(Contato contato) throws SQLException {

		// prepared statement para inserção
		PreparedStatement stmt = this.connection
				.prepareStatement("insert into contato (nome,contato,tel1,tel2,descricao) values (?, ?, ?, ?, ?)");

		// seta os valores
		stmt.setString(1, contato.getNome());
		stmt.setString(2, contato.getContato());
		stmt.setString(3, contato.getTel1());
		stmt.setString(4, contato.getTel2());
		stmt.setString(5, contato.getDescricao());

		// executa
		stmt.execute();
		stmt.close();
	}

	public List<Contato> getListaNome(String nome) throws SQLException {
		
		PreparedStatement stmt = this.connection.prepareStatement("SELECT * FROM contato WHERE nome LIKE '"+ nome + "%'");
		//stmt.setString(1, nome);
		ResultSet rs = stmt.executeQuery();
		List<Contato> list = new ArrayList<Contato>();
		while (rs.next()) {
			// criando o objeto Contato 
			Contato contato = new Contato();
			contato.setId(rs.getLong("id"));
			contato.setNome(rs.getString("nome"));
			contato.setContato(rs.getString("contato"));
			contato.setDescricao(rs.getString("descricao"));
			contato.setTel1(rs.getString("tel1"));
			contato.setTel1(rs.getString("tel2"));
			// adicionando o objeto à lista
			list.add(contato);
		
	}
		return list;
	}
	
}