JDBC——oracle连接数据库

JDBC连接mysql和oracle方法都一样，区别在于jar包，driver和url

连接jar包：ojdbc6.jar

1、第一种方法

package com.util;
 
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
 
public class DBUtil {
 
	public static void main(String[] args) {
		DBUtil util = new DBUtil();
		//Connection数据库连接接口
		Connection con = util.openConnection();
		System.out.println(con);
	}
 
	public Connection openConnection() {
		
		Properties prop = new Properties();
		String driver = null;
		String url = null;
		String name = null;
		String password = null;
		
		try {
			prop.load(this.getClass().getClassLoader().getResourceAsStream("DBConfig.properties"));
			driver = prop.getProperty("driver");
			url = prop.getProperty("url");
			name = prop.getProperty("name");
			password = prop.getProperty("password");
			
			Class.forName(driver);
			/*DriverManager驱动管理器获得数据库连接*/
			return DriverManager.getConnection(url, name, password);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}
	
	public void close(Connection con){
		if(con!=null){
			try {
				con.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
	}
}

driver = oracle.jdbc.OracleDriver
url = jdbc:oracle://localhost:3306/test
name = root
password =1234

2、第二种方法

package com.util;
 
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
 
public class DBUtil2 {
 
	public static void main(String[] args) {
		DBUtil2 util = new DBUtil2();
		Connection con = util.openConnection2();
		System.out.println(con);
	}
 
	public Connection openConnection2() {
		try {
			Class.forName("orecle.jdbc.OracleDriver");
			return DriverManager.getConnection("jdbc:oracle://localhost:3306/test", "root", "1234");
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}
	
	public void closerConnection(Connection con){
		if(con!=null){
			try {
				con.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
	}
}