201906G202/src/name/DBConn.java

package name;
import java.sql.*;

public class DBConn {
	static Connection conn=null;
	//连接数据库,返回 connection conn；
	public static Connection getConn(){
		String driverClassName="com.mysql.jdbc.Driver";//数据库驱动
		String url="jdbc:mysql://localhost:3306/management";//数据库名称 management
		String username="root";
		String password="001011";
		try{
			 Class.forName("com.mysql.jdbc.Driver");
			 conn= DriverManager.getConnection(url, username, password);
		}catch (Exception e){
			e.printStackTrace();
		}
		return conn;	
	}

}