实例化SQL语句（Java）（JDBC）时出错

Question

I've been trying to practice using JDBC in netbeans but i'm stuck with a little problem, now i loaded a driver, established a connection to SQL but for some reason my SQL statement isn't working, i'll be glad if anyone can bear with me

public void dbTest() {
    try {
        Class.forName(
                "com.mysql.jdbc.Driver").newInstance();
    } catch (InstantiationException |
            IllegalAccessException |
            ClassNotFoundException e) {
    }

    try (Connection connection = DriverManager.getConnection(
            "jdbc:mysql://localhost:3306/", "root", "explore");
            Statement statement = (Statement) connection.createStatement()) {
        String query = "select first_name, last_name"
                + " from sakila.customer "
                + "where address_id < 10";
        try (ResultSet resultset =
                statement.executeQuery(query)) {
            while (resultset.next()) {
                String firstName =
                        resultset.getString("first_name");
                String lastName =
                        resultset.getString("last_name");
                System.out.println(firstName + " " + lastName);
            }
        }
    } catch (SQLException e) {
    }
}

this line of code is causing me the trouble

Statement statement = (Statement) connection.createStatement()

Thanks!!

Answer 1

As most of the comments states, you should use java.sql.Statement and not java.beans.Statement .

Another thing i notice with your code is that you are querying and you have not specified from which database these operation should be done which will lead you to SQLException . So again you will have to change the url string from "jdbc:mysql://localhost:3306/" to "jdbc:mysql://localhost:3306/database_name" .

Hope this helps.