dbsqlmanager.java

理发店网上发型设计预约系统

package barbershop.database;

import java.sql.*;
import barbershop.database.*;

public class DBSQLManager
{
	protected Connection conn = null;
	protected Statement stmt = null;
	protected ResultSet rs = null;
	protected String sqlStr;
	
	public DBSQLManager()
	{
		try
		{
			sqlStr = "";
			DBConnection dcm = new DBConnection();
			conn = dcm.getConnection();
			stmt = conn.createStatement(); 
		}
		catch(Exception e)
		{
			System.out.println(e);
		}
	}
	
	public Statement getStmt()
	{
		return stmt;
	}
	
	public Connection getConn()
	{
		return conn;
	}
	
	public ResultSet getRs()
	{
		return rs;
	}
	
	public void setSqlStr(String sqlStr)
	{
		this.sqlStr = sqlStr;
	}
	
	public String getSqlStr()
	{
		return sqlStr;
	}
	
	public void executeQuery() throws Exception
	{
		rs = stmt.executeQuery(sqlStr);
	}
	
	public void executeUpdate() throws Exception
	{
		stmt.executeUpdate(sqlStr);
	}
	
	public void close() throws SQLException
	{
		if(stmt != null)
		{
			stmt.close();
			stmt = null;
			
		}
		conn.close();
		conn = null;
	}
}