package org.kodejava.example.sql;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class JdbcQueryExample {
public static void main(String[] args) throws Exception {
Connection connection = null;
try {
// Here we load the MySQL database Driver class
Class.forName("com.mysql.jdbc.Driver");
// Define properties for connecting to database such as
// database jdbc url, username and password
String url = "jdbc:mysql://localhost/kodejava";
String username = "kodejava";
String password = "kodejava123";
// Get a connection to database.
connection = DriverManager.getConnection(url, username, password);
// Create a statement object.
Statement statement = connection.createStatement();
// Executes a query command to select isbn and the book title
// from books table. The execute query returns a ResultSet object
// which is the result of our query execution.
String query = "SELECT isbn, title, published_date FROM books";
ResultSet books = statement.executeQuery(query);
// To get the value returned by the statement.executeQuery we need
// to iterate the books object until the last items.
while (books.next()) {
// To get the value from the ResultSet object we can call
// a method that correspond to the data type of the column in
// database table. In the example below we call
// books.getString("isbn") to get the book's ISBN information.
System.out.println(books.getString("isbn") + "; "
+ books.getString("title") + "; "
+ books.getDate("published_date"));
}
} finally {
if (connection != null && !connection.isClosed()) {
// We've done the business with the connection object, so
// let's close it.
connection.close();
}
}
}
}
Programmer, runner, recreational diver, live in the island of
Bali,
Indonesia. Mostly programming in Java, Spring Framework, Hibernate / JPA.
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