O que preciso para enviar informações

Para chamar a procedure vc pode usar isso:

CallableStatement cs = con.prepareCall("{call SHOW_SUPPLIERS}");

ResultSet rs = cs.executeQuery();

public class Conexao {
    
    /* Atributos de Conexao */   
    private Connection connection;
    private String host;
    private String filepath;
    private String login;
    private String password;    
    
    /* Construtores de Conexao */
    public Conexao(String host, String filepath, String login, String password)
    {  
        this.host = host;
        this.filepath = filepath;
        this.login = login;
        this.password = password;

        /*Conexão via JDBC MySql*/
        String url = "jdbc:mysql://" + host + "/" + filepath;
        Class.forName("com.mysql.jdbc.Driver");
            
        setConnection(DriverManager.getConnection(url, getLogin(), getPassword()));            
    }

    public void setConnection(Connection connection)
    {
        this.connection = connection;
    }

    public Connection getConnection()
    {
        return connection;
    }

    public void desconecta() throws SQLException {
            if( !connection.isClosed() )
                getConnection().close();
    }

     public static void main(String[] args) 
     {
         Conexao teste = new Conexao("localhost", "bancoDados", "root", "admin");
         PreparedStamente pst = teste.getConnection().prepareStatement("insert into pessoas(nome, idade, peso) values(?,?,?)");
         pst.setString(1, "João");
         pst.setInt(2, 20);
         pst.setInt(3, 70);
         pst.executeUpdate();
         teste.desconecta();
    }

}