databasemanager.java

来自「本源码是一个图书馆管理系统的实例」· Java 代码 · 共 60 行

import java.sql.*;
public class DataBaseManager
{
	Connection con;
	ResultSet rs;
	Statement stmt;
	public DataBaseManager()
	{
		try{
		DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
		con=DriverManager.getConnection("jdbc:oracle:thin:@happy:1521:myoracle","maimihui","maimihui");
		stmt=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
	}
	catch(SQLException sqle)
	{
		System.out.println(sqle.toString());
	}
	}
	public ResultSet getResult(String strSQL)
	{
		try{
		rs=stmt.executeQuery(strSQL);
		return rs;
	}
	catch(SQLException sqle)
	{
		System.out.println(sqle.toString());
		return null;
	}
	
}
        public boolean updateSql(String strSQL)
        {
        	try{
        	stmt.executeUpdate(strSQL);
        	con.commit();
                return true;
        	
        }
        catch(SQLException sqle)
        {
        	System.out.println(sqle.toString());
        	return false;
        }
        
        }
        public void closeConnection()
        {
        	try
        	{
        		con.close();
        	}
        	catch(SQLException sqle)
        	{
        		System.out.println(sqle.toString());
        	}
        }
       
}