JAVA 数据库连接

package Test;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.Statement;

import javax.naming.InitialContext;
import javax.sql.DataSource;

 

public class Test2{
 

  public static void main(String[] args) throws Exception{
//    if (System.getProperty("os.name").equals("AIX") && System.getProperty("os.name").equals("aix")) {
//     System.out.println("this is Linux");
//
//    } else if (System.getProperty("os.name").equals("Windows XP")) {
//     System.out.println("this is windows xp");
//    }
   
   //System.out.println("s:"+ConstantUtil.getSysPro());
    
  
   
   String sql = "";
   Class.forName("oracle.jdbc.driver.OracleDriver");
   Connection con = DriverManager.getConnection("jdbc:oracle:thin:@192.168.0.123:1521:DBNAME","userName","PWD");
   
   if(!con.isClosed())
    System.out.println("CONNECTION OK !");
   else
    System.out.println("CONNECTION error !");
   
//   Statement st = con.createStatement();
//   st.execute(sql);
   /*
   PreparedStatement pst = con.prepareStatement(sql);
   //pst.
   //System.getProperty()
   InitialContext ict = new InitialContext();
   DataSource ds = (DataSource)ict.lookup("");
   con =ds.getConnection();*/
  }
}