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JDBC
• Ada 7 lanhkah untuk mengakses database:
1. Load the JDBC Driver
2. Define the connection URL
3. Establish the connection
4. Create a statement object
5. Execute a query or update
6. Process the result
7. Close the connection
JDBC
try {
// Class.forName("org.gjt.mm.mysql.Driver"); // Step 1
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); //
step1
} catch (Exception E) {
E.printStackTrace();
} // end catch
JDBC
try {
con =
DriverManager.getConnection("jdbc:odbc:Datab
ase1");//,"root",""); // step 2 and 3
JDBC
stmt = con.createStatement(); // step 4
rs = stmt.executeQuery("SQL Query'"); // step 5
while (rs.next()) { // step 6
:
:
} // while
JDBC
stmt.close(); // step7
con.close();
Access Database
• Microsoft Acess Database : db1
Setting Access Database
• Menset Database yang dipakai sebagai acuan dalam
Program
• Start -> Control Panel -> ODBC Data Source
Setting Access Database
• Tampil jendela ODBC Data Source Administrator
• Click System DSN-> Add-> pilih Driver (Microsoft Access Driver) ->
Finish. Dalam hal ini kita memakai Access Database.
• Tentukan Letak File Database yang digunakan
Setting Access Database
• Click OK
• Data base db1 siap diakses oleh Program
JDBC Program
package jdbc01;
import java.sql.*;
public class JDBCTest01 {
public static void main(String[] args) {
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try {
Class.forName("sun.jdbc.odbc.JdbcOd
bcDriver"); // step1
} catch (ClassNotFoundException cnfe) {
System.err.println(cnfe);
} catch (Exception E) {
E.printStackTrace();
} // end catch
try {
conn =
DriverManager.getConnection("jdbc:odbc:db1");
// step 2 and 3
stmt = conn.createStatement(); // step 4
rs = stmt.executeQuery("SELECT * FROM tabel02");
while (rs.next()) { // step 6
System.out.print(rs.getString("Nomer") + " ");
System.out.print(rs.getString("Judul") + " ");
System.out.print(rs.getString("Pengarang") + " ");
System.out.print(rs.getString("Penerbit") + " ");
System.out.print(rs.getString("harga") + " ");
System.out.println("Oke");
} // while
stmt.close();
conn.close();
} catch(SQLException sqle) {
System.err.println("SQLException : " +
sqle.getMessage());
} // end cacth
}
}
JDBC Program
• Hasil Program
1 Java 2 Complete Reference Patrick Naughton McGraw Hill 600000 Oke
2 Distributed Systems Tanenbaum Prentice Hall 500000 Oke
3 Home Networking Bible Plumley IDG Books 375000 Oke
• Bandingkan
JDBC Program dengan Access
• Setting perlu dilakukan pada Control Panel, untuk
menset Database yang dipakai
• Pada Java Program tidak diperlukan setting
apapun
• Sun telah menyediakan driver secara otomatis
untuk Access
• Hal ini tidak berlaku untuk Sistem Database yang
lain, misal: mysql, oracle, dll.
Mysql Database
• Mysql dapat didownload
di :
www.mysql.com/downloads
• Extract and Just install
it: Setup.exe
• Mysql terletak di
C:\mysql
• Aktifkan mysql admin
dengan double click di :
C:\mysql\bin\winmysqladmin
Mysql Database
• Inilah tampilannya
• Atau tampak di pojok kanan bawah
Mysql Database
• Mysql database : test002
• Tabel : tabel02
Java to mysql
• JDBC Driver for MySQL dapat di-download di :
www.mysql.com/downloads
dengan nama : MySQL Connector/J 2.0.14
• Extract ke C:\
• JDBC Driver akan terletak di subdirectory
C:\mysql-connector-java-2.0.14
Java to mysql
• Dengan JBUILDER, buat program (class) Java misalnya :
JDBCTest01.java
• Project -> Project Properties -> Path -> Required Libraries ->
Add... -> New, tuliskan nama library-nya, misal mysql-connectorjava, click Add...
Java to mysql
• Pilih subdirectory C:\mysql-connector-java-..., di
mana JDBC driver untuk mysql diletakkan, click
OK
Java to mysql
• Library yang baru
akan tampak
seperti pada
gambar, click OK
JDBC Program
package jdbc01;
import java.sql.*;
public class JDBCTest01 {
public static void main(String[] args) {
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try {
Class.forName("org.gjt.mm.mysql.Driver")
; // Step 1
} catch (ClassNotFoundException cnfe) {
System.err.println(cnfe);
} catch (Exception E) {
E.printStackTrace();
} // end catch
try {
conn =
DriverManager.getConnection("jdbc:mysql://localhost:
3306/test002","rsn","risanuri");
stmt = conn.createStatement(); // step 4
rs = stmt.executeQuery("SELECT * FROM tabel02");
while (rs.next()) { // step 6
System.out.print(rs.getString("Nomer") + " ");
System.out.print(rs.getString("Judul") + " ");
System.out.print(rs.getString("Pengarang") + " ");
System.out.print(rs.getString("Penerbit") + " ");
System.out.print(rs.getString("harga") + " ");
System.out.println("Oke");
} // while
stmt.close();
conn.close();
} catch(SQLException sqle) {
System.err.println("SQLException : " +
sqle.getMessage());
} // end cacth
}
}
Hasil JDBC mysql
1 Core Servlets and JSP Marty Hall Prentice Hall 350000 Oke
2 Java 2 Complete Reference Patrick Naughton McGraw Hill 600000 Oke
3
J2EE Unleashed Bambara Allen Sams 600000 Oke
•
Bandingkan
JDBC Program dengan mysql
• Setting tidak perlu dilakukan pada Control
Panel
• Perlu dilakukan setting pada Java Program
• Driver JDBC disediakan oleh mysql dan
harus di-download secara terpisah
• Mysql memungkinkan memanggil Database
lewat jaringan
Tambahan
con =
DriverManager.getConnection("jdbc:mysql://localhost:3306/pasiendreritta","r
oot","");
stmt = con.createStatement();
stmt.executeUpdate("INSERT INTO catatanpasien VALUES('"+ navn[0]
+"','"+ navn[1] +"','"+ navn[2] +"','"+ navn[3] +"','"+ navn[4] +"','"+ navn[5]
+"');");
Mysql tools
• Dbtools
• Mysql-front
Java to mysql
• Setting Classpath, prosesnya sama dengan
setting classpath yang lain
– Pada Win98, Start ->Run (sysedit), kemudian
pada autoexec.bat tambahkan C:\mysqlconnector-java-2.0.14, yang merupakan letak
subdir JDBC Driver
Java to mysql
Java to mysql
• Compile
– myjava>javac JDBCTest01.java
• Buat subdir jdbc01 di dalam :\myjava
• Letakkan JDBCTest01.class pada subdir
:\myjava\jdbc01
• Eksekusi
– \myjava>java jdbc01.JDBCTest01
1 Routing TCP/IP Jeff Doyle null 900000 Oke
2 Top Down Network Design Oppenheimer 0 600000 Oke
3 Java Security Jess Gams 0 500000 Oke