JDBC PreparedStatement Demo

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JDBCPreparedStatementDemo Project Dir Structure

JDBCPreparedStatementDemo.java

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class JDBCPreparedStatementDemo
{
    // JDBC driver name and database URL
    static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
    static final String DB_URL      = "jdbc:mysql://localhost:3306/world";

    // Database credentials
    static final String USERNAME    = "root";
    static final String PASSWORD    = "root";

    public static void main( String[] args )
    {

        JDBCPreparedStatementDemo jdbcPreparedStatementDemo =  
                                        new JDBCPreparedStatementDemo();
        jdbcPreparedStatementDemo.getCityInformation();

    }

    private void getCityInformation()
    {
        Connection connection = null;
        PreparedStatement preparedStatement = null;
        try
        {
            /*
             * Register the JDBC driver in DriverManager
             */

            Class.forName(JDBC_DRIVER);

            /*
             * Establish connection to the Database using DriverManager
             */

            connection = DriverManager
                    .getConnection(DB_URL, USERNAME, PASSWORD);

            String sql = "select * from city where countryCode=? and District = ?";

            /*
             * Execute the query
             */
            preparedStatement = connection.prepareStatement(sql);
            preparedStatement.setString(1, "GBR");
            preparedStatement.setString(2, "England");

            ResultSet rs = preparedStatement.executeQuery();

            while( rs.next() )
            {
                int id = rs.getInt(1);
                String name = rs.getString(2);
                String countryCode = rs.getString(3);
                String district = rs.getString(4);
                int population = rs.getInt(5);

                /*
                 * Display values
                 */
                System.out.print("ID: " + id);
                System.out.print(", Name: " + name);
                System.out.print(", CountryCode: " + countryCode);
                System.out.print(", District: " + district);
                System.out.println(", Population: " + population);
            }

            rs.close();

        }
        catch( SQLException se )
        {
            /*
             * Handle errors for JDBC
             */
            se.printStackTrace();
        }
        catch( ClassNotFoundException e )
        {
            /*
             * Handle errors for Class.forName
             */
            e.printStackTrace();
        }
        finally
        {
            /*
             * finally block used to close resources
             */
            try
            {
                if( preparedStatement != null )
                {
                    preparedStatement.close();
                }
            }
            catch( SQLException sqlException )
            {
                sqlException.printStackTrace();
            }
            try
            {
                if( connection != null )
                {
                    connection.close();
                }
            }
            catch( SQLException sqlException )
            {
                sqlException.printStackTrace();
            }
        }

    }

}

Output

ID: 456, Name: London, CountryCode: GBR, District: England, Population: 7285000
ID: 457, Name: Birmingham, CountryCode: GBR, District: England, Population: 1013000
ID: 459, Name: Liverpool, CountryCode: GBR, District: England, Population: 461000
ID: 461, Name: Sheffield, CountryCode: GBR, District: England, Population: 431607
ID: 462, Name: Manchester, CountryCode: GBR, District: England, Population: 430000
ID: 463, Name: Leeds, CountryCode: GBR, District: England, Population: 424194
ID: 464, Name: Bristol, CountryCode: GBR, District: England, Population: 402000
ID: 466, Name: Coventry, CountryCode: GBR, District: England, Population: 304000
ID: 467, Name: Leicester, CountryCode: GBR, District: England, Population: 294000
ID: 468, Name: Bradford, CountryCode: GBR, District: England, Population: 289376
ID: 470, Name: Nottingham, CountryCode: GBR, District: England, Population: 287000
ID: 471, Name: Kingston upon Hull, CountryCode: GBR, District: England, Population: 262000
ID: 472, Name: Plymouth, CountryCode: GBR, District: England, Population: 253000
ID: 473, Name: Stoke-on-Trent, CountryCode: GBR, District: England, Population: 252000
ID: 474, Name: Wolverhampton, CountryCode: GBR, District: England, Population: 242000
ID: 475, Name: Derby, CountryCode: GBR, District: England, Population: 236000
ID: 477, Name: Southampton, CountryCode: GBR, District: England, Population: 216000
ID: 479, Name: Northampton, CountryCode: GBR, District: England, Population: 196000
ID: 480, Name: Dudley, CountryCode: GBR, District: England, Population: 192171
ID: 481, Name: Portsmouth, CountryCode: GBR, District: England, Population: 190000
ID: 482, Name: Newcastle upon Tyne, CountryCode: GBR, District: England, Population: 189150
ID: 483, Name: Sunderland, CountryCode: GBR, District: England, Population: 183310
ID: 484, Name: Luton, CountryCode: GBR, District: England, Population: 183000
ID: 485, Name: Swindon, CountryCode: GBR, District: England, Population: 180000
ID: 486, Name: Southend-on-Sea, CountryCode: GBR, District: England, Population: 176000
ID: 487, Name: Walsall, CountryCode: GBR, District: England, Population: 174739
ID: 488, Name: Bournemouth, CountryCode: GBR, District: England, Population: 162000
ID: 489, Name: Peterborough, CountryCode: GBR, District: England, Population: 156000
ID: 490, Name: Brighton, CountryCode: GBR, District: England, Population: 156124
ID: 491, Name: Blackpool, CountryCode: GBR, District: England, Population: 151000
ID: 493, Name: West Bromwich, CountryCode: GBR, District: England, Population: 146386
ID: 494, Name: Reading, CountryCode: GBR, District: England, Population: 148000
ID: 495, Name: Oldbury/Smethwick (Warley), CountryCode: GBR, District: England, Population: 145542
ID: 496, Name: Middlesbrough, CountryCode: GBR, District: England, Population: 145000
ID: 497, Name: Huddersfield, CountryCode: GBR, District: England, Population: 143726
ID: 498, Name: Oxford, CountryCode: GBR, District: England, Population: 144000
ID: 499, Name: Poole, CountryCode: GBR, District: England, Population: 141000
ID: 500, Name: Bolton, CountryCode: GBR, District: England, Population: 139020
ID: 501, Name: Blackburn, CountryCode: GBR, District: England, Population: 140000
ID: 503, Name: Preston, CountryCode: GBR, District: England, Population: 135000
ID: 504, Name: Stockport, CountryCode: GBR, District: England, Population: 132813
ID: 505, Name: Norwich, CountryCode: GBR, District: England, Population: 124000
ID: 506, Name: Rotherham, CountryCode: GBR, District: England, Population: 121380
ID: 507, Name: Cambridge, CountryCode: GBR, District: England, Population: 121000
ID: 508, Name: Watford, CountryCode: GBR, District: England, Population: 113080
ID: 509, Name: Ipswich, CountryCode: GBR, District: England, Population: 114000
ID: 510, Name: Slough, CountryCode: GBR, District: England, Population: 112000
ID: 511, Name: Exeter, CountryCode: GBR, District: England, Population: 111000
ID: 512, Name: Cheltenham, CountryCode: GBR, District: England, Population: 106000
ID: 513, Name: Gloucester, CountryCode: GBR, District: England, Population: 107000
ID: 514, Name: Saint Helens, CountryCode: GBR, District: England, Population: 106293
ID: 515, Name: Sutton Coldfield, CountryCode: GBR, District: England, Population: 106001
ID: 516, Name: York, CountryCode: GBR, District: England, Population: 104425
ID: 517, Name: Oldham, CountryCode: GBR, District: England, Population: 103931
ID: 518, Name: Basildon, CountryCode: GBR, District: England, Population: 100924
ID: 519, Name: Worthing, CountryCode: GBR, District: England, Population: 100000
ID: 520, Name: Chelmsford, CountryCode: GBR, District: England, Population: 97451
ID: 521, Name: Colchester, CountryCode: GBR, District: England, Population: 96063
ID: 522, Name: Crawley, CountryCode: GBR, District: England, Population: 97000
ID: 523, Name: Gillingham, CountryCode: GBR, District: England, Population: 92000
ID: 524, Name: Solihull, CountryCode: GBR, District: England, Population: 94531
ID: 525, Name: Rochdale, CountryCode: GBR, District: England, Population: 94313
ID: 526, Name: Birkenhead, CountryCode: GBR, District: England, Population: 93087
ID: 527, Name: Worcester, CountryCode: GBR, District: England, Population: 95000
ID: 528, Name: Hartlepool, CountryCode: GBR, District: England, Population: 92000
ID: 529, Name: Halifax, CountryCode: GBR, District: England, Population: 91069
ID: 530, Name: Woking/Byfleet, CountryCode: GBR, District: England, Population: 92000
ID: 531, Name: Southport, CountryCode: GBR, District: England, Population: 90959
ID: 532, Name: Maidstone, CountryCode: GBR, District: England, Population: 90878
ID: 533, Name: Eastbourne, CountryCode: GBR, District: England, Population: 90000
ID: 534, Name: Grimsby, CountryCode: GBR, District: England, Population: 89000

Environment Used 

JDK version :1.7.0_51
Tomcat version : 7.0.50 

To Download JDBCPreparedStatementDemoApp Project Click the below link

https://sites.google.com/site/javaee4321/jdbc/JDBCPreparedStatementDemoApp.zip?attredirects=0&d=1

See also:

Servlets Tutorial

All Design Patterns Links

JDBC Tutorial