package cn.aiqinzhe;
import java.sql.*;

public class ExeDB extends OpenDB {

//	數據庫連接對象
	private Connection dbConn;
	private Statement stmt;
	private ResultSet rs;	
	
	//初始化操作
	public ExeDB()
	{
		dbConn = super.getDB();
		stmt = null;
		rs = null;
	}
	
	 //執行sql 執行語句，主要是執行插入和刪除的SQL語句
	public boolean exeSql(String strSql)
	{
		try
		{
   			stmt=dbConn.createStatement();
			stmt.executeUpdate(strSql);	
			stmt.close();	
			return true;            
		}
		catch(Exception ex)
		{
			return false;
		}	
	}
	
	//執行sql 查詢語句    
    public ResultSet exeSqlQuery(String strSql)
	{
		
		try
		{
   			stmt=dbConn.createStatement();
			rs =stmt.executeQuery(strSql);			            
		}
		catch(Exception ex)
		{	
			rs = null;
		}	
		return rs;
	}	
}