Mega Code Archive
Applet and Oracle JDBC
<![CDATA[
/*
Java Programming with Oracle JDBC
by Donald Bales
ISBN: 059600088X
Publisher: O'Reilly
*/
import java.applet.Applet;
import java.awt.Graphics;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Timestamp;
public class TestApplet extends Applet {
private Connection conn;
private Timestamp created = new Timestamp(System.currentTimeMillis());
public void init() {
try {
System.out
.println("init(): loading OracleDriver for applet created at "
+ created.toString());
Class.forName("oracle.jdbc.driver.OracleDriver");
System.out.println("init(): getting connection");
conn = DriverManager.getConnection(
"jdbc:oracle:thin:@dssw2k01:1521:orcl", "scott", "tiger");
} catch (ClassNotFoundException e) {
System.err.println("init(): ClassNotFoundException: "
+ e.getMessage());
} catch (SQLException e) {
System.err.println("init(): SQLException: " + e.getMessage());
}
}
public void start() {
System.out.println("start(): ");
}
public void stop() {
System.out.println("stop(): ");
}
public void paint(Graphics g) {
System.out.println("paint(): querying the database");
try {
Statement stmt = conn.createStatement();
ResultSet rset = stmt
.executeQuery("select 'Hello '||initcap(USER) result from dual");
while (rset.next())
g.drawString(rset.getString(1), 10, 10);
rset.close();
stmt.close();
} catch (SQLException e) {
System.err.println("paint(): SQLException: " + e.getMessage());
}
}
public void destroy() {
System.out
.println("destroy(): closing connection for applet created at "
+ created.toString());
try {
conn.close();
} catch (SQLException e) {
System.err.println("destroy: SQLException: " + e.getMessage());
}
}
}
//TestApplet.html
/*
<html>
<head>
</head>
<body>
<applet code=TestApplet archive=TestApplet.zip width=100 height=50></applet>
</body>
</html>
*/
]]>