java基于JDBC连接Oracle 11g Release2实例分析

/******************************************************** Created on Nov, 2011 Copyright(c) http://vigilance.co.in All Rights Reserved.********************************************************/package com.vigilance.java.sample;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;/** * @author http://vigilance.co.in */public class ConnectJDBCOracle11g {/** * This class demonstrates the code for connecting Oracle 11g database using JDBC. * @param args*/public static void main(String[] args) {  String JDBC_DRIVER = "oracle.jdbc.driver.OracleDriver";  String JDBC_STRING = "jdbc:odbc:thin:@HOSTNAME:PORTNUMBER/SID";  // in case of 11g use '/' instead of :  String USER_NAME = "USER_NAME";  String PASSWD = "PASSWORD";  Connection conn = null;  ResultSet rs = null;  Statement stmt = null;  try{    Class.forName(JDBC_DRIVER);    conn = DriverManager.getConnection(JDBC_STRING, USER_NAME, PASSWD);    stmt = conn.createStatement();    String query = "SELECT * FROM TABLE TBL";    rs = stmt.executeQuery(query);  }catch(SQLException sqlEx){    sqlEx.printStackTrace();  } catch (ClassNotFoundException e) {    e.printStackTrace();  } finally{    try {      if(rs!=null) rs.close();      if(stmt !=null) stmt.close();      if(conn!=null) conn.close();    } catch (SQLException e) {      e.printStackTrace();    }  }}}