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import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NameClassPair;
import javax.naming.NamingEnumeration;
import oracle.jdbc.pool.OracleDataSource;
public class Main {
public static void main(String[] args) throws Exception {
Connection conn = getMySqlConnection();
// Set up the environment for creating the initial context
Hashtable env = new Hashtable(11);
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
env.put(Context.PROVIDER_URL, "file:/jdbc");
Context context = new InitialContext(env);
NamingEnumeration list = context.list("jdbc");
while (list.hasMore()) {
NameClassPair nc = (NameClassPair) list.next();
System.out.println(nc);
}
OracleDataSource ods = new OracleDataSource();
ods.setDriverType("thin");
ods.setServerName("localhost");
ods.setNetworkProtocol("tcp");
ods.setDatabaseName("databaseName");
ods.setPortNumber(1521);
ods.setUser("userName");
ods.setPassword("Password");
Context ctx = new InitialContext();
ctx.bind("file:/jdbc/mydb", ods);
// Get the initial context of JNDI and lookup the datasource.
InitialContext ic = new InitialContext();
javax.sql.DataSource ds = (javax.sql.DataSource) ic.lookup("file:/jdbc/mydb");
// Set the optional printwriter where the trace log is to be directed.
ds.setLogWriter(new PrintWriter(new FileOutputStream("c:/datasource.log")));
Connection con1 = ds.getConnection();
Connection con2 = ds.getConnection("userName", "password");
conn.close();
}
private static Connection getHSQLConnection() throws Exception {
Class.forName("org.hsqldb.jdbcDriver");
System.out.println("Driver Loaded.");
String url = "jdbc:hsqldb:data/tutorial";
return DriverManager.getConnection(url, "sa", "");
}
public static Connection getMySqlConnection() throws Exception {
String driver = "org.gjt.mm.mysql.Driver";
String url = "jdbc:mysql://localhost/demo2s";
String username = "oost";
String password = "oost";
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, username, password);
return conn;
}
public static Connection getOracleConnection() throws Exception {
String driver = "oracle.jdbc.driver.OracleDriver";
String url = "jdbc:oracle:thin:@localhost:1521:databaseName";
String username = "userName";
String password = "password";
Class.forName(driver); // load Oracle driver
Connection conn = DriverManager.getConnection(url, username, password);
return conn;
}
}
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