connectionaccess.java

来自「利用JAVA开发的简单考试系统」· Java 代码 · 共 38 行

package model.connection;
import java.sql.*;
/**
 * 用作连接Access数据库
 * @author Cynthia
 *
 */
public class ConnectionAccess implements Connectable{
   //属性
   private Connection conn;

   /**
    * 构造函数
    * @param arg                      连接数据库类型
    * @throws ClassNotFoundException  类名没有找到
    * @throws SQLException            连接数据库时出错
    */
   public ConnectionAccess(String arg) throws ClassNotFoundException,SQLException{
          System.out.println("jjca");
	   String driver = arg;
	   try{
	   Class.forName(driver);
	   String url = "jdbc:odbc:ItemDatabase";
	   conn = DriverManager.getConnection(url);
	   }
	   catch(ClassNotFoundException e){
		  System.out.println("Class not found!");
	   }
	   catch(SQLException e){
		   System.out.println("Database connection failed!");
	   }
	}
   /**接口函数的实现
    * @return Connection类型 连接
    */
   public Connection connectionDatabase(){return conn;}
}