java-oracle數據庫連接代碼

別忘了加ojdba6.jar，並且add a library。

鏈接代碼：

package util;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;


public class DbUtil {
    private String dbURL="jdbc:oracle:thin:@localhost:1521:ORCL";
    private String dbUserName="system";
    private String dbPassword="1111";
    private String jdbcName="oracle.jdbc.driver.OracleDriver";


    public Connection getCon(){

        Connection conn =null;
        try {
            Class.forName(jdbcName);
            conn = DriverManager.getConnection(dbURL,dbUserName,dbPassword);
            System.out.println("數據庫連接成功");
            return conn;
        }catch (Exception e){
            e.printStackTrace();
            return null;
        }

    }
    public void closeCon( Connection conn){

            if(conn!=null){
                try {
                    conn.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
    }

}

測試代碼：

package test;

import util.DbUtil;

import java.sql.Connection;

public class Test {

    public static void main(String[] ards){
        testUser();


    }

    public static void testUser(){
        DbUtil dbu=new DbUtil();

        Connection conn= dbu.getCon();

        dbu.closeCon(conn);
    }

}